Longer Lifespan Research Articles

Numerical Simulation of a Thermal Management System Using Composite Flame-Retardant Resin and Its Effect on Battery Life Span

One of the obstacles to the adoption of electric vehicles as a future pollution-free transport solution is that the energy sources (batteries) have not yet become sustainable through a long-life span under the specific operating conditions. The problem that arises is that high temperatures inside the batteries represent a safety risk and have negative effects on the battery life span, which imposes the use of thermal management systems. The present article aims to analyze, by numerical methods, the effect of the use of a fireproof composite resin on the efficiency of the thermal management system, specifically on the degree of battery sustainability (measured by the effect on the life span). Five constructive variants are proposed and thermally analyzed. Based on the measured temperatures, the intensity of the chemical reactions that occur in a 18650-type Li-ion cell was calculated, and conclusions related to the impact on the life span were drawn. It has been found that the use of a fireproof composite resin leads to an increased heat transmission towards the outer environment and an increase in the life span by 22.2% compared to that noted for conventional air cooling. The results also recommend the use of heat exchangers associated with flame retardant resins, which leads to a 20.6% improvement in the heat transfer capacity of the battery’s thermal management system. When comparing the solutions in which the flame-retardant resin is used, the results show that adding 3 wt.% of nanomaterial leads to a significant life span increase of 11.7% when compared to the results for the resin-only case.

Dual-type confinement strategy: Improving the stability of organic composite cathodes for Lithium-ion batteries with longer lifespan

Inclusive reports on organic cathodes are the key evidence of their superior performance for Lithium-ion batteries. However, it is still promising to simultaneously achieve a higher practical specific capacity and longer cycling life, owing to the crucial concern of the dissolution of active molecules in organic electrolytes. The introduction of porous carbon confinement and coating which can impart discharge capacity and cycling stability, is highly beneficial. Herein, we designed and prepared a novel composite cathode (designated as HKUST-1-C@DHAQ@TiO2) with small molecules (DHAQ) in porous carbon skeleton (HKUST-1-C) as core and TiO2 as shell. The unique dual-type confinement strategy offers short Li+/e- diffusion directions for redox reactions and superior structural stability during cycling without dissolution or decomposition of the components, resulting in excellent electrochemical performance. The HKUST-1-C@DHAQ@TiO2 cathode delivers significant specific capacity (209 mAh g−1, 0.1 A g−1), markable Coulombic efficiency (nearly 100 %), notable cycling stability (86 % retention for provided 200 cycles) and excellent rate capacity (138 mAh g−1 at 1.0 A g−1). The presented findings offer the deep understanding of redox reactions and organic cathode evolution mechanisms for the progress of smarter energy storage batteries.

Intervention for critical aortic stenosis in Hutchinson-Gilford progeria syndrome.

Hutchinson-Gilford Progeria Syndrome (HGPS) is an ultra-rare genetic premature aging disease that is historically fatal in teenage years, secondary to severe accelerated atherosclerosis. The only approved treatment is the farnesyltransferase inhibitor lonafarnib, which improves vascular structure and function, extending average untreated lifespan of 14.5 years by 4.3 years (30%). With this longer lifespan, calcific aortic stenosis (AS) was identified as an emerging critical risk factor for cardiac death in older patients. Intervention to relieve critical AS has the potential for immediate improvement in healthspan and lifespan. However, HGPS patient-device size mismatch, pervasive peripheral arterial disease, skin and bone abnormalities, and lifelong failure to thrive present unique challenges to intervention. An international group of experts in HGPS, pediatric and adult cardiology, cardiac surgery, and pediatric critical care convened to identify strategies for successful treatment. Candidate procedures were evaluated by in-depth examination of 4 cases that typify HGPS clinical pathology. Modified transcatheter aortic valve replacement (TAVR) and left ventricular Apico-Aortic Conduit (AAC) placement were deemed high risk but viable options. Two cases received TAVR and 2 received AAC post-summit. Three were successful and 1 patient died perioperatively due to cardiovascular disease severity, highlighting the importance of intervention timing and comparative risk stratification. These breakthrough interventions for treating critical aortic stenosis in HGPS patients could rewrite the current clinical perspective on disease course by greatly improving late-stage quality of life and increasing lifespan. Expanding worldwide medical and surgical competency for this ultra-rare disease through expert information-sharing could have high impact on treatment success.

IMPAQT reveals that adequate mitohormesis from TFAM overexpression leads to life extension in mice.

Mitochondrial transcription factor A, TFAM, is essential for mitochondrial function. We examined the effects of overexpressing the TFAM gene in mice. Two types of transgenic mice were created: TFAM heterozygous (TFAM Tg) and homozygous (TFAM Tg/Tg) mice. TFAM Tg/Tg mice were smaller and leaner notably with longer lifespans. In skeletal muscle, TFAM overexpression changed gene and protein expression in mitochondrial respiratory chain complexes, with down-regulation in complexes 1, 3, and 4 and up-regulation in complexes 2 and 5. The iMPAQT analysis combined with metabolomics was able to clearly separate the metabolomic features of the three types of mice, with increased degradation of fatty acids and branched-chain amino acids and decreased glycolysis in homozygotes. Consistent with these observations, comprehensive gene expression analysis revealed signs of mitochondrial stress, with elevation of genes associated with the integrated and mitochondrial stress responses, including Atf4, Fgf21, and Gdf15. These found that mitohormesis develops and metabolic shifts in skeletal muscle occur as an adaptive strategy.

Innovations in prosthetic foot design enhancing durability, functionality and comfort through PLA composite filament 3D printing

Purpose The number of people with special needs, including citizens and military personnel, has increased as a result of terrorist attacks and challenging conditions in Iraq and other countries. With almost 80% of the world’s amputees having below-the-knee amputations, Iraq has become a global leader in the population of amputees. Important components found in lower limb prostheses include the socket, pylon (shank), prosthetic foot and connections. Design/methodology/approach There are two types of prosthetic feet: articulated and nonarticulated. The solid ankle cushion heel foot is the nonarticulated foot that is most frequently used. The goal of this study is to use a composite filament to create a revolutionary prosthetic foot that will last longer, have better dorsiflexion and be more stable and comfortable for the user. The current study, in addition to pure polylactic acid (PLA) filament, 3D prints test items using a variety of composite filaments, such as PLA/wood, PLA/carbon fiber and PLA/marble, to accomplish this goal. The experimental step entails mechanical testing of the samples, which includes tensile testing and hardness evaluation, and material characterization by scanning electron microscopy-energy dispersive spectrometer analysis. The study also presents a novel design for the nonarticulated foot that was produced with SOLIDWORKS and put through ANSYS analysis. Three types of feet are produced using PLA, PLA/marble and carbon-covered PLA/marble materials. Furthermore, the manufactured prosthetic foot undergoes testing for dorsiflexion and fatigue. Findings The findings reveal that the newly designed prosthetic foot using carbon fiber-covered PLA/marble material surpasses the PLA and PLA/marble foot in terms of performance, cost-effectiveness and weight. Originality/value To the best of the author’s knowledge, this is the first study to use composite filaments not previously used, such as PLA/wood, PLA/carbon fiber and PLA/marble, to design and produce a new prosthetic foot with a longer lifespan, improved dorsiflexion, greater stability and enhanced comfort for the patient. Beside the experimental work, a numerical technique specifically the finite element method, is used to assess the mechanical behavior of the newly designed foot structure.

Approaching Mental Health Through a Preventive Data Analysis Platform

The rising prevalence of chronic diseases and the aging population globally are diminishing the overall quality of life, especially for those with demanding daily routines. As medical advancements extend lifespans, the proportion of individuals over 60 is set to double by 2050, necessitating societal shifts toward health-responsible citizenship. Despite longer lifespans, evidence suggests that older age often accompanies mental health challenges such as anxiety, depression, and substance misuse. Social isolation and loneliness further compound these issues, affecting both physical and mental well-being. Digital wellness empowers individuals to take charge of their health, promoting proactive care and literacy to foster health-conscious citizenship. This paper explores the intersection of mental health, aging populations, preventive wellness initiatives, and health literacy, emphasizing their significance within the Health 5.0 framework, especially for older adults. Traditionally, health regulators offer static workflows for adopting standard procedures in health and well-being, reflecting a reactive approach. However, the evolving landscape of wearable and mobile devices connecting to healthcare IT systems through secure online networks necessitates a shift. Technology now facilitates remote patient monitoring and telemedicine service subscriptions and empowers individuals to manage their health proactively. The BE4YOU project, conducted in Portugal, serves as a case study, facilitating individual maintenance of health and well-being through intelligent and dynamic workflows, which are defined based on analytical models considering each person’s risk profile. By facilitating data sharing, promoting healthy lifestyles, and enabling early detection of mental health issues, the project leverages technology to support personalized monitoring and enhance overall health outcomes. Through technology-driven empowerment, individuals and healthcare professionals are better equipped to assess risks and ensure ongoing wellness monitoring, underscoring the role of technology in fostering personal health and supporting healthcare effectiveness.

Therapeutic singing-induced swallowing exercise for dysphagia in advanced-stage Parkinson's disease.

With longer life spans and medical advancements, the rising number of patients with advanced-stage Parkinson's disease (PD) warrants attention. Current literature predominantly addresses dementia and fall management in these patients. However, exploring the impact of swallowing function on patients with advanced PD is crucial. Previous research has demonstrated notable enhancements in the quality of life related to voice for participants following a group singing-intervention program. To further elucidate the effect of individual singing-induced swallowing exercises, our study aimed to investigate the quantitative and qualitative effects of therapeutic singing on swallowing function in patients with advanced PD in comparison to a matched usual care control group. The hypothesis of this study is that therapeutic singing-induced swallowing exercises can assist to maintain swallowing function in patients with advanced PD. This prospective matched control study compared the effects of a 6-week therapeutic singing-based swallowing intervention on swallowing function and quality of life in patients with advanced PD. The intervention group received individual sessions with a music therapist and conventional individual physical therapy. The control group received the same standard physical therapy for 6 weeks without music intervention. The primary outcome measure was Video Fluoroscopic Dysphagia Scale (VDS). The study revealed that the intervention group maintained swallowing function, whereas the control group experienced deterioration, indicating significant time-dependent changes in Penetration-Aspiration Scale (PAS), National Institutes of Health-Swallowing Safety Scale (NIH-SSS), and VDS. Analysis of PAS and NIH-SSS liquid food scores in both groups showed significant time effects. However, the intervention group exhibited no significant differences between the pre- and post-tests, indicating preservation of the swallowing function. VDS of liquid food indicated an interaction effect between time and group in the pharyngeal phase and total scores. The Swallowing-Quality of Life showed significant time-effect improvement in the intervention group. Therapeutic singing exercises may help maintain swallowing function in advanced PD patients, potentially enhancing quality of life related to swallowing in those with advanced-stage diseases. https://cris.nih.go.kr/cris/search/listDetail.do, identifier KCT0008644.

It is time to explore the impact of length of gestation and fetal health on the human lifespan.

A recently proposed principal law of lifespan (PLOSP) proposes to extend the whole human lifespan by elongating different life stages. As the preborn stage of a human being, gestation is the foundation for the healthy development of the human body. The antagonistic pleiotropy (AP) theory of aging states that there is a trade-off between early life fitness and late-life mortality. The question is whether slower development during the gestation period would be associated with a longer lifespan. Among all living creatures, the length of the gestation period is highly positively correlated to the length of the lifespan, although such a correlation is thought to be influenced by the body sizes of different species. While examining the relationship between lifespan length and body size within the same species, dogs exhibit a negative correlation between lifespans and body sizes, while there is no such correlation among domestic cats. For humans, most adverse gestational environments shorten the period of gestation, and their impacts are long-term. While many issues remain unsolved, various developmental features have been linked to the conditions during the gestation period. Given that the length of human pregnancies can vary randomly by as long as 5 weeks, it is worth investigating whether a slow steady healthy gestation over a longer period will be related to a longer and healthier lifespan. This article discusses the potential benefits, negative impacts, and challenges of the relative elongation of the gestation period.

A Comparison between the Only Two Documented Tornado Outbreak Events in China: Tropical Cyclone versus Extratropical Cyclone Environments

Abstract This study documents the features of tornadoes, their parent storms, and the environments of the only two documented tornado outbreak events in China. The two events were associated with Tropical Cyclone (TC) Yagi on 12 August 2018 with 11 tornadoes and with an extratropical cyclone (EC) on 11 July 2021 (EC 711) with 13 tornadoes. Most tornadoes in TC Yagi were spawned from discrete minisupercells, while a majority of tornadoes in EC 711 were produced from supercells imbedded in QLCSs or cloud clusters. In both events, the high-tornado-density area was better collocated with the K index rather than MLCAPE, and with entraining rather than non-entraining parameters possibly due to their sensitivity to midlevel moisture. EC 711 had a larger displacement between maximum entraining CAPE and vertical wind shear than TC Yagi, with the maximum entraining CAPE better collocated with the high-tornado-density area than vertical wind shear. Relative to TC Yagi, EC 711 had stronger entraining CAPE, 0–1-km storm relative helicity, 0–6-km vertical wind shear, and composite parameters such as an entraining significant tornado parameter, which caused its generally stronger tornado vortex signatures (TVSs) and mesocyclones with a larger diameter and longer life span. No significant differences were found in the composite parameter of these two events from U.S. statistics. Although obvious dry air intrusions were observed in both events, no apparent impact was observed on the potential of tornado outbreak in EC 711. In TC Yagi, however, the dry air intrusion may have helped tornado outbreak due to cloudiness erosion and thus the increase in surface temperature and low-level lapse rate.

Sustainable Denim Design Using Giza Cotton

Designing denim fabrics that will have a longer wear life by combining Giza cotton, one of the best cottons in the world, with yarn technology, without using any reinforced synthetic fibers. Giza cotton will be used in the products to be developed specifically for the project. High strength yarns will be obtained with the fiber length of Giza cotton and the appropriate twist value to be applied. It is aimed that the fabrics produced from these threads will have a longer lifespan than normal cotton threads. One of the most important steps for the continuity of sustainable production will be that the produced product is recyclable and can be used for a longer time. In this way, a significant decrease in the carbon and water footprint resulting from production will be achieved. The environmental impact of production will be minimized.

Prelithiation of electrodes in lithium-ion capacitors: A review

Lithium-ion capacitors (LICs) are one of the modern state-of-the-art hybrid capacitors, comprising a high potential window and imparting a higher energy density than supercapacitors (SCs). These LICs encompass elevated power density and a longer life span than lithium-ion batteries (LIBs). Preparation of high-performance electrode materials with electrochemically active microstructure and prelithiation are two efficient approaches to fabricate highly efficient LICs. But it comes across as a real dilemma of low initial Columbic efficiency if only microstructure is considered as an efficient way to enhance the performance. Nevertheless, prelithiation plays a crucial role in the manufacturing of LICs, improving the initial Coulombic efficiency and enlarging the voltage window. This paper reviews the recent lithiation approaches for lithium-ion capacitors by providing their methods and discussing their results concerning their energy and power density.

Highly biased sex ratios in the twelve species of the freshwater snail genus Semisulcospira in and around Lake Biwa

ABSTRACT The sex ratio is nearly equal in most organisms, while several ecological and evolutionary factors skew the sex ratio. We evaluated the sex ratios of 12 species in the freshwater snail genus Semisulcospira in and around Lake Biwa. We found highly female-biased sex ratios in all 12 species. The sex ratios were nearly equal or slightly female-biased in the smaller shell-size classes, while they were highly female-biased in the larger size classes. We also found that females were significantly larger in most of these species. Further, the species with a larger size difference between the sexes tended to exhibit a more female-biased sex ratio. Considering the general correlation between shell size and age, this pattern can be explained by longer lifespans in females, shaping the observed female-biased sex ratios. We also found that some Semisulcospira species showed female-biased sex ratios in all shell size classes. This pattern suggests that the distinct longevity hypothesis can not solely explain the observed biased sex ratios. We discussed the possible contributions of the sampling errors and selfish genetic elements to the observed biased sex ratios. This study provides essential information to disentangle the mechanisms of the biased sex ratio in the Semisulcospira snails.

Review of neoplasia in fish at a large display aquarium, 2005-2021.

Fish maintained in managed care may have longer lifespans as a result of advances in veterinary medicine and husbandry and reduced risk of predation. Neoplasia is of increasing interest in managed aquarium populations. However, few studies have systematically evaluated neoplasia in managed fish populations. Our objective in this retrospective study was to review and describe neoplasia diagnosed in fish at a large public display aquarium between 2005 and 2021. Any fish diagnosed with neoplasia on either antemortem or postmortem evaluation during the study period was included, and all medical records, biopsy, and autopsy reports were reviewed. Sixty-two fish met the inclusion criteria; 37 species were included in the study population, most of which were tropical freshwater fish (n = 34 fish). Thirty-two types of neoplasia were identified. Ten fish had benign neoplasms, and 53 fish had malignant neoplasms. The most common neoplasms were of epithelial and neuroectodermal origin. The most common site of tumor origin was the skin. Our data suggest that mesenchymal neoplasms may be more common in cold saltwater fish than in tropical freshwater and saltwater fish. Malignant neoplasms were most commonly diagnosed in the study population and should be a top differential when neoplasms are identified in fish managed under human care. Our study contributes to the overall knowledge of the health of aquarium fish and may aid clinicians in characterizing neoplasia that may be present in fish under human care.

Abstract 5992: Expression of oncogenic ASSP2k in acute myeloid leukemia directly contributes to resistance to therapy and aggressiveness of the disease

Abstract Background ASPP2 is a critical p53 activator initiating apoptotic cascades in the presence of cell stress. ASPP2k is a novel, dominant-negative, oncogenic splicing isoform of the tumor suppressor ASPP2, discovered in the context of a mutational screening of AML/ALL patient biopsies (expressed in >40% of the samples) (Schittenhelm MM et atl, EBioMed 2019). ASPP2k results from an aberrant exon 17 skipping: a premature STOP codon at the new exon16-exon18 junction site leads to the translation of a truncated protein. Indeed, ASPP2k lacks the ASPP2 C-terminus, containing the important p53 binding sites. Thus, ASPP2k impairs p53-dependent apoptosis activation, resulting in accelerated proliferation and attenuated chemotherapy-induced apoptosis in cancer cells. Results ASPP2k silencing (KD) and overexpression (KI) functional consequences were evaluated in vitro and in vivo. ASPP2k was silenced in MOLM-14 cells and primary AML blasts. We found proliferation to be attenuated in ASPP2k KD cells compared to EV cells in both models (p<0.0001). Silencing of ASPP2k rendered cells more susceptible towards standard chemotherapy compared to controls (+30% Daunorubicin 10 nM, +20% Venetoclax 15 nM, p<0.01, Annexin/PI). Both cell models were subsequently injected intravenously into NSG mice: ASPP2k KD lead to a less aggressive disease development, resulting in a longer lifespan (30 and 42 days for EV and KD, respectively). Significant splenomegaly was noted for all control mice, while spleens from mice injected with ASPP2k KD cells were on average half in size and weight, arguing for a less aggressive biology of KD leukemia cells. Vice versa, ASPP2k up-regulation resulted in opposite results. IL-3 dependent Ba/F3 cells are a standard model to evaluate the oncogenic capacities of potential tumor drivers. Upon ASPP2k KI, Ba/F3 cells lost their IL-3 dependency. In line, overexpression of ASPP2k resulted in accelerated proliferation (+9.32 and +127.75 fold-change at 96h for EV and KI cells respectively, compared to 24h). When injected into NSG mice, ASPP2k KI Luc+ cells spread rapidly and invaded spleen, liver and brain, while no disease dissemination was noticeable control mice. Data from regular blood counts confirmed this notion. Animals injected with ASPP2k KI cells showed a rapid disease progression, while EV mice showed no signs of the illness. Further an increase of +122.5% in spleen weight was assessed in mice injected with ASPP2k KI cells compared to control animals at termination day, further underlining oncogenic potential of ASPP2k. Conclusions In summary, we here show that ASPP2κ directly contributes to resistance towards therapy in AML as well as aggressiveness of disease in vivo in all the investigated models, arguing for an oncogenic potential of the variant. Future studies evaluating ASPP2κ as a prognostic/predictive model and potential target for therapy are warranted. Citation Format: Alessia Ruiba, Marcus Schittenhelm, Anna Lena Ahrens, Vanessa Aellig, Kerstin Kampa-Schittenhelm. Expression of oncogenic ASSP2k in acute myeloid leukemia directly contributes to resistance to therapy and aggressiveness of the disease [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 5992.

EXPLORING THE CHARACTERISTIC FEATURES OF THE LANGUAGE OF SCIENCE AND TECHNOLOGY (A LITERATURE REVIEW)

It is a fact that in the last few years the science and technology have developed rapidly and widely across the world. Their development has brought a number of positive and significant impacts for human life such as easy transportation, wide and various job opportunity, working mechanization and automation, longer life span, etc. But in order to sustainably and widely develop and implement the science and technology, human beings must understand and master the language of the science and technology proficiently. Nevertheless, many students, scholars, academicians, researchers, even scientists find hard to understand and master the language of science and technology well. This paper attempt at exploring the nature of language of science and technology, the characteristic features, and the historical development of the language and science across time.

Bleaching and drifting

This article describes the possibilities of art workshops which have been conducted in Fukushima Prefecture that were affected by the earthquake, tsunami, and nuclear power plant accident on March 11, 2011. In coastal areas, many people experienced unexpected domestic migrations/relocations and unwelcome changes in their lives due to the disaster, moving multiple times and living in a state akin to drifting. In these workshops, participants recalled their history and context, created artwork as their navigational chart of life while rebraiding individual narratives with images, memories, and recollections that associated with objects as a part of hyperobjects of tsunami and nuclear disasters. For their complicated situation after the disaster, the workshops provided the opportunities to negotiate with objects as non-human things which have a longer lifespan than humans. It became the activities supporting peoples who lost the continuity of their lives with their hometown. These recovery and support programs through art workshops will be an ecosophic approach based on non-discursive, aesthetic, and ethic means to change the human-centric dominant paradigm.

A Large Postmortem Database of COVID-19 Patients Can Inform Disease Research and Public Policy Decision Making.

Autopsies performed on COVID-19 patients have provided critical information about SARS-CoV-2's tropism, mechanisms of tissue injury, and the spectrum of disease. To provide an updated database of postmortem disease in COVID-19 patients, assess relationships among clinical and pathologic variables, evaluate the accuracy of death certification, and correlate disease variables to causes of death. The 272 postmortem examinations reported in this paper were submitted by 14 pathologists from 9 medical or forensic institutions across the United States. The study spans the eras of the 3 principal COVID-19 strains and incorporates surveyed demographic, clinical, and postmortem data from decedents infected with SARS-CoV-2, including primary and contributing causes of death. It is the largest database of its kind to date. Demographics of the decedents reported here correspond well to national statistics. Primary causes of death as determined by autopsy and official death certificates were significantly correlated. When specifically cited disease conditions found at autopsy were correlated with COVID-19 versus non-COVID-19 death, only lung findings characteristic of SARS-CoV-2 infection or the absence of lung findings were significantly associated. Changes in hospitalization and disease likely stem from longer lifespans after COVID-19 diagnosis and alteration in treatment approaches. Although Omicron variants preferentially replicate in the upper airways, autopsied patients who died of COVID-19 in that time period showed the same lung damage as earlier decedents. Most importantly, findings suggest that there are still unelucidated risk factors for death from COVID-19 including possibly genetic susceptibility.

Atomically thin Co-doped nickel oxide/hydroxide superstructure toward high-energy supercapacitors

Atomically thin nanosheets can expose almost all electroactive sites, which deliver outstanding electrochemical performances. However, the direct fabrication of atomically thin nanosheets array on conductive substrates as binder-free electrodes remains a challenge. Herein, atomically thin (ca. 1.4 nm) Co-doped nickel oxide/hydroxide (CoNiOHx) nanosheets superstructure is grown on Ni foam via an alanine-induced in-situ synthesis strategy. High-angle annular dark-field scanning transmission electron microscope (HAADF-STEM) verifies the formation of Co8Ni16O32 mesophase between Co-doped Ni(OH)2 and NiO in the optimized sample. Density functional theory (DFT) calculations demonstrate an improved electrical conductivity and low deprotonation energy in Co8Ni16O32, contributing to elevated electrochemical performances. As expected, the electrode delivers a super-high specific capacity of 2244 mC cm−2 (ca. 1268 C g−1) at 2 mA cm−2 and prominent long-life span with no capacity decay after 5000 cycles. Moreover, the asymmetric supercapacitor constructed by coupling the above cathode and activated carbon (AC) anode displays a high energy density of 73.3 Wh kg−1 at the power density of 2250 W kg−1, as well as meritorious cycling stability. This work provides a new strategy for the construction of atomically thin superstructure on conductive metal substrate with high energy storage capability.

Feasibility of integrated solar photovoltaic pico‐pumped storage self‐sustained system for multi‐storey building in India

AbstractThis study explores the potential of utilizing a pico‐pumped storage system (PPSH) as an energy storage solution to enhance the integration of renewable energy sources in a multi‐story building. The study seeks to evaluate the system's ability to fulfil the energy requirements of a part of a multi‐storey building, considering factors such as cost‐effectiveness, longevity, and environmental impact. Basic relationships are used to model both floating solar PV systems and pumped storage systems in MATLAB. An algorithm based on linear programming is used to generate the optimal schedule, while a particle swarm optimization‐based algorithm is employed for the optimal design of the proposed system. In order to analyze the economic feasibility, the levelized cost of solar energy and the levelized cost of stored energy are estimated. An optimally sized floating solar PV integrated pico pumped storage system with an optimal operating strategy can perform technically. However, due to practical limitations, the system's dimensions cannot accommodate real‐world storage requirements. When levelized costs are considered, a pico‐pumped storage system becomes less appealing than battery storage systems, particularly if a new storage tank is to be constructed. Compared to battery storage systems, pumped storage systems have a lower energy density, which requires more space and height, especially in buildings. Pumped storage systems, on the other hand, have a longer lifespan and a lower environmental impact. Overall, the proposed system, along with an optimal scheduling algorithm, provides a long‐term solution for energy storage, aligning with the growing global emphasis on lowering carbon emissions and embracing renewable energy sources. Although there may be a high initial investment requirement and a restricted storage capacity, the sustained advantages of energy independence and a diminished carbon footprint render it an appealing option for environmentally conscious communities and green buildings.

Synergetic coupling of hydrogen-bond bridge and multielectron redox towards stable and efficient lithium storage

The flexible molecular engineering has been emerged as a viable option for constructing the high-performance organic cathodes. Herein, a unique crystalline organic supramolecular structure of hexaazatrinaphthalene tricarboxylic acid (denoted as HOS-HATNTA) is engineered by constructing a hydrogen-bonded bridge between the organic ligands, which features to couple the synergetic effects of stable network structure and multiple paths for electron redox. Not only does the bridge serve as a stable channel to allow triggering a chain of similar displacements for transporting ions, but the bridge itself also play an important role in boosting the electron transfer between the pyrazine N in different layers, which enables the efficient lithium storage. As a result, HOS-HATNTA cathode exhibits an all-round elevation of electrochemical metrics including the large specific capacity (271.6 mAh g−1 at 50 mA g−1), large-current tolerance (144.3 mAh g−1 at 5 A g−1), and the impressive long-life span (> 3000 cycles at 3 A g−1). Mechanistic studies encompassing XPS, in-situ Raman, kinetic analyses and DFT calculations comprehensively reveals the multiple mechanism of hydrogen bond supramolecule network in electrochemical behaviors for LIBs, which bring a promising insight into engineering high performance organic cathode materials.