Terms Of Energy Density Research Articles

Electrochemically Activated Expanded Graphite with Tailor-Made Pores for Magnesium-Organocation Hybrid Batteries.

Persisting limitations of lithium-ion batteries (LIBs) in terms of safety, energy and power density, natural resources, and the price call for expeditious research to develop the "beyond Li-ion" technologies. In this regard, magnesium-organocation hybrid batteries (MOHB) hold the potential to address the above issues associated with LIBs by utilizing abundant and inexpensive elements of magnesium and carbon for the anode and cathode, respectively. Moreover, magnesium metal anode is highly energy-dense yet less susceptible to the dendrite formation, enabling safer operation compared to lithium metal anodes. In this study, we targeted to increase the capacity and rate capability of porous carbon cathode of MOHB by generating tailor-made pores, which were provided by the interlayer accommodation of solvated organic cations with controlled sizes during the electrochemical activation of expanded graphite. Our electrochemically activated expanded graphite can be used as an efficient cathode in MOHB with enhanced kinetics, specific capacitance, and cycle life.

Effects of Nanomaterials on Enhancing the Performance of Energy Storage Devices in Germany

Purpose: This study investigates the effects of nanomaterials on enhancing the performance of energy storage devices in Germany.
 Materials and Methods: The study adopted a desktop methodology. Desk research refers to secondary data or that which can be collected without fieldwork. Desk research is basically involved in collecting data from existing resources hence it is often considered a low-cost technique as compared to field research, as the main cost is involved in executive’s time, telephone charges and directories. Thus, the study relied on already published studies, reports and statistics. This secondary data was easily accessed through the online journals and library.
 Results: The literature review and experimental findings reveal that nanomaterials can significantly improve the performance of energy storage devices in terms of energy density, power density, cycling stability, and safety. Nanomaterials offer unique properties, such as high surface area, improved charge transport, and enhanced electrochemical activity, which can positively impact the performance of energy storage devices. However, the effects of nanomaterials are highly dependent on their composition, morphology, size, and surface properties, as well as the design and fabrication of the energy storage devices. The research highlights the potential of nanomaterials as promising candidates for advanced energy storage technologies.
 Recommendations: This study contributes to the understanding of the effects of nanomaterials on enhancing the performance of energy storage devices, specifically in the context of Germany. The research provides valuable insights into the fundamental principles, mechanisms, and applications of nanomaterials for energy storage, which can be beneficial for researchers, practitioners, and policymakers in the field of materials science, electrochemistry, and energy storage technologies. The findings of this study have implications for the design, optimization, and commercialization of advanced energy storage devices with improved performance, durability, and sustainability.

Power exchanged between subsystems with non-diffuse fields in statistical energy analysis.

This article is a discussion on the necessity of the assumption of diffuse field in statistical energy analysis and the validity of the coupling power proportionality which states that the vibrational power exchanged between coupled subsystems is proportional to the difference of their modal energies. It is proposed to re-formulate the coupling power proportionality in terms of local energy density instead of modal energy. We show that this generalized form remains valid even if the vibrational field is not diffuse. Three causes of lack of diffuseness have been studied: coherence of rays in symmetrical geometries, nonergodic geometries, and the effect of high damping. Numerical simulations and experimental results conducted on flat plates in flexural vibration are provided to support these statements.

A Numerically Efficient Method to Assess the Elastic–Plastic Strain Energy Density of Notched and Imperfective Cast Steel Components

The fatigue strength of cast steel components is severely affected by manufacturing process-based bulk and surface imperfections. As these defect structures possess an arbitrary spatial shape, the utilization of local assessment methods is encouraged to design for service strength. This work applies the elastic–plastic strain energy density concept to study the fatigue strength properties of a high-strength cast steel alloy G12MnMo7-4+QT. A fatigue design limit curve is derived based on non-linear finite element analyses which merges experimental high-cycle fatigue results of unnotched and notched small-scale specimens tested at three different stress ratios into a unique narrow scatter band characterized by a scatter index of 1:TΔW¯(t)=2.43. A comparison to the linear–elastic assessment conducted in a preceding study reveals a significant improvement in prediction accuracy which is assigned to the consideration of the elastic–plastic material behaviour. In order to reduce computational effort, a novel approximation is presented which facilitates the calculation of the elastic–plastic strain energy density based on linear–elastic finite element results and Neuber’s concept. Validation of the assessment framework reveals a satisfying agreement to non-linear simulation results, showing an average root mean square deviation of only approximately eight percent in terms of total strain energy density. In order to study the effect of bulk and surface imperfections on the fatigue strength of cast steel components, defect-afflicted large-scale specimens are assessed by the presented elastic–plastic framework, yielding fatigue strength results which merge into the scatter band of the derived design limit curve. As the conducted fatigue assessment is based solely on linear–elastic two-dimensional simulations, the computational effort is substantially decreased. Within the present study, a reduction of approximately 400 times in computation time is observed. Hence, the established assessment framework presents an engineering-feasible method to evaluate the fatigue life of imperfective cast steel components based on rapid total strain energy density calculations.

Effect of Fast-Frequency Pulsed Current Parameters on FFP-TIG arc Behavior and Its Implications for Inconel 718 Welding

Tungsten inert gas (TIG) is currently one of the most widely applied welding technologies. However, the arc energy divergence and high heat input of conventional TIG can lead to welding defects in heat-input-sensitive alloys (such as Inconel 718). Introducing a fast-frequency pulsed current (≥20 kHz) in TIG creates a welding process named fast-frequency pulsed tungsten inert gas (FFP-TIG). The arc behavior of FFP-TIG has advantages over conventional TIG in terms of arc contraction, arc pressure, and energy density. With an increase in the FFP current amplitude or frequency, the arc diameter and arc area are reduced, the arc pressure at the center of the arc is increased, and the arc energy divergence and arc temperature are reduced. The FFP-TIG weld method was adapted for Inconel 718 based on FFP-TIG arc behavior. This study provides fresh insight into the development and application of FFP-TIG arc physics research and industrial applications.

ZnO/Carbon Shell/Carbon Cloth as a Stable Host for High Li-Content Anodes

Among all energy storage systems, lithium metal batteries (LMBs) show great advantages in terms of energy density. Nevertheless, the challenges of lithium metal anodes, namely, dendrite formation and low Coulombic efficiency, hinder the practical application of LMBs. In this work, we used the ZnO/carbon shell/carbon cloth as a host for the lithium metal anode. The introduction of ZnO sites reduces the nucleation barrier of lithium deposition, and the existence of a 3D current collector alleviates the volume change during lithium plating/stripping. In addition, the combination of ZnO/C and 3D carbon cloth decreases the local current density and contributes to uniform lithium plating/stripping. The half cells assembled with modified carbon cloth electrodes cycle for more than 125 cycles with a high Coulombic efficiency of 99.34%, even under a high areal capacity of 6 mA h cm–2. By and large, our work provides a simple and effective strategy to modify the current collector for high Li-content anodes.

Hybrid Aqueous/Non‐aqueous Electrolytes for Lithium‐Ion and Zinc‐Ion Batteries: A Mini‐Review

AbstractIn recent years, the development of aqueous lithium‐ion batteries and aqueous zinc‐ion batteries has received extensive attention thanks to the advantages of high safety, environmental friendliness, and easy assembly conditions. However, aqueous batteries are always restricted in terms of limited cycling stability and low energy density due to their intrinsically narrow electrochemical window, hydrogen evolution, and side reactions. These problems can be remarkably alleviated by hybridizing aqueous/non‐aqueous electrolytes; however, few detailed discussions on relevant strategies have been reported. In this mini‐review, we summarize the latest progress and contributions of various hybrid aqueous/non‐aqueous electrolytes for rechargeable aqueous lithium‐ion batteries and aqueous zinc‐ion batteries. The current challenges and development directions are also discussed for hybrid electrolytes.

Tunable Phase Structure in Mn-Doped Lead-Free BaTiO3 Crystalline/Amorphous Energy Storage Thin Films

For dielectric energy storage materials, high polarization and high breakdown strengths are a long-standing challenge. A modulating crystalline/amorphous phase structure strategy is proposed by Mn-doping and annealing temperature to enhance the energy storage performance of pure BaTiO3 (BT) films. In this study, lead-free Mn-doped BT films were prepared on Pt/Ti/SiO2/Si substrates via the sol-gel method, and the effects of the crystalline/amorphous phase ratio on polarization and electric properties were analyzed. A small amount of Mn-doping in BT could reduce the annealing temperature and enhance polarization with an Mn content of 8%. In addition, the energy storage properties of BT-8%Mn films achieve the best energy storage performance in terms of energy density and efficiency of 72.4 J/cm3 and 88.5% by changing the annealing temperature to 640 °C. BT-8%Mn energy storage films also possess good stability over a wide temperature range of 20 °C–200 °C, which demonstrates that crystalline/amorphous engineering is a simple and effective way to enhance energy storage applications of dielectric films.

Recent Advances in Electrolytes for High-Voltage Cathodes of Lithium-Ion Batteries

With the increasing scale of energy storage, it is urgently demanding for further advancements on battery technologies in terms of energy density, cost, cycle life and safety. The development of lithium-ion batteries (LIBs) not only relies on electrodes, but also the functional electrolyte systems to achieve controllable formation of solid electrolyte interphase and high ionic conductivity. In order to satisfy the needs of higher energy density, high-voltage (> 4.3 V) cathodes such as Li-rich layered compounds, olivine LiNiPO4, spinel LiNi0.5Mn1.5O4 have been extensively studied. However, high-voltage cathode-based LIBs fade rapidly mainly owing to the anodic decomposition of electrolytes, gradually thickening of interfacial passivation layer and vast irreversible capacity loss, hence encountering huge obstacle toward practical applications. To tackle this roadblock, substantial progress has been made toward oxidation-resistant electrolytes to block its side reaction with high-voltage cathodes. In this review, we discuss degradation mechanisms of electrolytes at electrolyte/cathode interface and ideal requirements of electrolytes for high-voltage cathode, as well as summarize recent advances of oxidation-resistant electrolyte optimization mainly from solvents and additives. With these insights, it is anticipated that development of liquid electrolyte tolerable to high-voltage cathode will boost the large-scale practical applications of high-voltage cathode-based LIBs.

Enhancing the performance and mechanical stability of 2D-based hybrid micro-supercapacitors using dendritic-gold as framework layer

In recent years scaling-down approaches on supercapacitors has led to the definition of Micro-Supercapacitors (μSC). The demand for these devices is increasing for many applications in microelectronics, such as wearable energy storage and self-powered sensors. Recently, many efforts have been made to achieve good results in terms of power and energy densities. However, the current research challenge is to develop a sustainable chain production, involving eco-friendly materials, such as water-based electrolytes, organic binders and low-impact active material. This work presents a hybrid μSC using low impact materials and a fully water-based solution. Different approaches were adopted for patterning the current collectors and for the deposition of the active materials. The material chosen as anode was MnO2 deposited by electroplating, which presents pseudocapacitive behavior. The active material used for the cathode was Activated Carbon (AC), deposited by drop-casting, which works through the electric double layer (EDL) capacitance effect. The electrolyte was 1 M Na2SO4 in water. We investigated the addition of an interlayer micro-structure made of Dendritic-Gold (D-Gold). The results show that such a layer seems to have positive effects in terms of wettability and mechanical stability, enhancing the adhesion of the active material. Electron microscopy measurement shows the characteristic tree-like shape of the layer. The device reports a capacitance of about 14 to 23 mF cm-2 and a large voltage window equal to 1.6 V. The present research explores, for the first time, the effects of dendritic gold in planar electrochemical capacitors. The findings should give an important contribution for boost energy storage densities in the field of 2D micro-supercapacitors.

Selenium-Doped Sulfurized Poly(acrylonitrile) Composites as Ultrastable and High-Volumetric-Capacity Cathodes for Lithium–Sulfur Batteries

Lithium–sulfur (Li–S) batteries, despite their superior gravimetric energy density, are inferior to lithium-ion (Li-ion) batteries in terms of volumetric energy density because of the intrinsic low density of sulfur and the lightweight carbon host. Here, a new strategy is proposed to improve the volumetric capacity of sulfur cathode with selenium-doped sulfurized poly(acrylonitrile) (SPAN) as the electrode material. The introduction of Se not only accelerates the redox kinetics of sulfur conversion but also leads to dramatically enhanced active materials content and higher tap density of the electrode material. Consequently, the Se0.4SPAN composite delivers an impressive volumetric capacity of 1185 mAh cm–3 at 0.1 C, a high rate capability of 850 mAh cm–3 at 4 C, and excellent long-term stability over 500 cycles at 1 C. Self-discharge behavior and the shuttle effect are completely avoided due to the absence of soluble intermediates. Moreover, a remarkable volumetric energy density of 1537 Wh Lcathode–1 is achieved based on the densification effect with a high cathode density (1.51 g cm–3), which is comparable to the metal oxide cathode of Li-ion batteries. This study demonstrates a promising way to overcome the bottlenecks of current Li–S technologies for high volumetric-energy-density rechargeable batteries.

A novel constitutive model for surface elasticity at finite strains suitable across compressibility spectrum

The surface elasticity theory of Gurtin–Murdoch has proven to be remarkably successful in predicting the behavior of materials at the nano scale, which can be attributed to the fact that the surface-to-volume ratio increases as the problem dimension decreases. On the other hand, surface tension can deform soft elastic solids even at the macro scale resulting e.g. in elastocapillary instabilities in soft filaments reminiscent of Plateau–Rayleigh instabilities in fluids. Due to the increasing number of applications involving nanoscale structures and soft solids such as gels, the surface elasticity theory has experienced a prolific growth in the past two decades. Despite the large body of literature on the subject, the constitutive models of surface elasticity theory at large deformations are not suitable to capture the surface behavior from fully compressible to nearly incompressible elasticity, especially from a computational perspective. A physically meaningful and proper decomposition of the surface free energy density in terms of area-preserving and area-varying contributions remains yet to be established. We show that an immediate and intuitive generalization of the small-deformation surface constitutive models does not pass the simple extension test at large deformations and results in unphysical behavior at lower Poisson’s ratios. Thus, the first contribution of the manuscript is to introduce a novel decomposed surface free energy density that recovers surface elasticity across the compressibility spectrum. The second objective of this paper is to formulate an axisymmetric counterpart of the elastocapillary theory methodically derived from its three-dimensional format based on meaningful measures relevant to the proposed surface elasticity model. Various aspects of the problem are elucidated and discussed through numerical examples using the finite element method enhanced with surface elasticity.

The Potential of Structural Batteries for Commuter Aircraft Hybridization

Electric or hybrid electric propulsion systems have received a great deal of attention in recent years in various branches of transportation including aviation. Europe is committed to the ambitious goals of reducing CO2 emissions by 75%, NOx emissions by 90% and perceived noise by two-thirds by the year 2050 compared to the average new aircraft of the year 2000. The main barrier of the electric propulsion is bound to the battery limits in terms of energy and power densities, thus determining a relevant negative impact on payload or aircraft size. It is possible to design and fly an electrically propelled aircraft, as testified by some existing examples, both prototypical and production models, in the categories of ultralight and general aviation aircraft. A novel technology, which allows the electrification process toward heavier categories of aircraft, is constituted by structural batteries. These are similar in structure to carbon fiber composites, where the matrix features dielectric characteristics, making the structure capable of storing electric energy while retaining the capability to withstand mechanical loads. Despite that, it raises relevant issues concerning aircraft sizing procedures that need to be conceived considering the specific characteristics of such multifunctional technology. This research work aims to evaluate the potential benefits the structural batteries have on the fuel burn for a 11-seater commuter aircraft. According to the envisaged technologies (structural batteries), this work will focus on the determination of the best hybridization factors determining the energy requirements for the typical mission of a commuter aircraft.

Fabrication of Hybrid Supercapacitor by MoCl5 Precursor‐Assisted Carbonization with Ultrafast Laser for Improved Capacitance Performance

AbstractHybrid supercapacitors use electric double‐layer capacitance and Faradaic pseudocapacitance as energy storage mechanisms. This type of supercapacitor is becoming a prime candidate for next‐generation energy storage devices, with advantages in terms of energy density, specific capacitance, and life cycle. However, reducing the electrode area and increasing the specific capacitance of hybrid supercapacitors remain challenging. In this study, a MoCl5 Precursor‐assisted Ultrafast Laser Carbonization (MPAULC) method to fabricate symmetric hybrid supercapacitors with improved capacitance and reduced size is proposed. The method uses an ultrafast laser to induce the formation of carbon/MoO3 composite with the assistance of the MoCl5 precursor. This ultrafast laser carbonization method exhibited high processing precision. The role of the precursor in laser processing is studied using time‐resolved imaging and temperature calculations. The specific area capacitance of the C/MoO3 hybrid supercapacitor is 11.85 mF cm−2, 9.2 times higher than that of the laser‐induced carbon supercapacitor without precursor. The MPAULC method provides a reliable pathway for fabricating miniaturized hybrid supercapacitors with carbon/metal oxide composite electrodes on polymer substrates.

A new control parameter to predict micro-warping-induced job failure in LPBF of TI6AL4V titanium alloy

Laser powder bed fusion (LPBF) includes a few printing techniques widely used, in recent years, concerning the additive manufacturing of Ti6Al4V alloys. These produced parts, typically utilized in sectors such as aerospace and biomedical, are characterized by very high added value. It is therefore fundamental to identify the influence of process parameters typical of LPBF technology on the occurrence of warping leading to process failure. This study deals with the characterization of single-track and “micro-scale” level warping phenomena which may lead to protrusion of material over the powder bed and process failure before normal termination. This phenomenon was investigated as a function of process parameters, referring also to the strength and ductility characteristics of the manufactured samples. With this purpose, several samples were printed using variable process parameters both in terms of line energy density (LED) values and in terms of laser power and speed combinations such as to guarantee constant LED values. For the samples that did not show significant micro-warping phenomena, in addition to the transversal and longitudinal geometric characterization of the single track, tensile tests were performed to determine both the resistance of the material and the ductility characteristics. The single tracks, for given process parameters, were printed on a homogeneous material substrate. For every single track, a microstructural and morphological transverse and longitudinal characterization has been carried out and the measured geometrical features were correlated to the process parameters. The obtained results allowed the identification of a new threshold parameter, indicating the limit operating conditions beyond which significant warping phenomena and process failure occur.

Production and characterization of briquettes made from rice straw and sawdust under high pressure and high temperature conditions

Briquettes offer good value in terms of energy density. Briquetting of sawdust with paddy straw is a ray of hope for paddy straw waste utilization, which has been a burning issue in India for a long time. A commercial briquetting machine was used to make briquettes of sawdust with paddy straw in two different forms—shredded and chopped, in different ratios, separately. The ratio of paddy straw in briquettes was increased until the produced briquettes had an acceptable firmness. The maximum ratio of shredded paddy straw for which briquetting was possible was 40:60 with sawdust, whereas for chopped paddy straw it was 60:40 with sawdust. The briquettes were then analysed for different properties to assess their quality and durability. The shatter index of shredded straw briquettes and chopped straw briquettes varied from 0.10–10.12% and 0.26–4.54%, respectively. The friability index of shredded straw briquettes was in the range of 93.54-99.85%, whereas for chopped straw briquettes it was in the range of 89.89-99.90%. The volatile matter of shredded straw briquettes ranged from 79.60-83.89%, whereas for chopped straw briquettes it ranged from 76.69-86.07 %. The ash content of shredded straw briquettes was in the range of 9.83-13.07%, whereas for chopped straw briquettes, it was in the range of 6.60-16.44%. The fixed carbon content of shredded straw briquettes varied from 0.09 to 0.87%, whereas for chopped straw briquettes it varied from 0.11 to 0.59%. The results suggested that the densification experiments were successful and the briquettes produced were of good quality

Experimental Study on Combustion Characteristics of Biodiesel–Ethanol Dual Fuel: An Overview

Biodiesel and bioethanol are two renewable fuels available on the market, both of which have been used on internal combustion engines as an additive as they have physicochemical properties similar to commercial petroleum fuels. However, different properties of biodiesel and ethanol in terms of viscosity and energy density directly affect the combustion process of internal combustion engines. This article aims to analyze and evaluate the influence of 100% blended biofuels including biodiesel-ethanol on combustion characteristics and emissions under diesel engine conditions, as well as the status of biodiesel-ethanol fuel use, a recommended orientation for the development of adaptive diesel engine in the future at Vietnam. These studies on the influence of biodiesel-ethanol fuels blend were carried out on the optical research engine system (constant volume combustion chamber) and the actual engine testing. The results revealed that change in the concentration of ethanol affects the physicochemical properties of BE fuels blend, and using more ethanol in the mixture causes more effect on the trend of combustion characteristics and emissions. Consequently, it is possible to use a 100% biodiesel-ethanol blend on conventional diesel engines with little modifications.

Al2O3/ZnO composite-based sensors for battery safety applications: An experimental and theoretical investigation

Lithium-ion batteries are vital in one of the key nanotechnologies required for the transition to a carbon-free society. As such, they are under constant investigation to improve their performance in terms of energy and power densities. At the same time, safety monitoring is crucial, as defects in the battery cell can lead to serious safety risks such as fires and explosions as a result of the enormous heat generated in the electrolyte, causing the release of toxic and flammable gases in the so-called thermal runaway. Therefore, early and rapid detection of the gases that form before thermal runaway is of particular interest. To this end, solid-state sensors based on new heterostructured materials have gained interest owing to their high stability and versatility when used in the harsh battery environment. In this work, heterostructures based on semiconductor oxides are employed as sensors for typical components of battery electrolytes and their decomposition products. The sensors showed a significant response to vapors produced by battery solvents or degassing products, making them perfect candidates for the development of successful new prototypes for safety monitoring. Here, we have used a simple and versatile method to fabricate the Al2O3/ZnO heterostructure, consisting of atomic layer deposition (ALD) and thermal annealing steps. These Al2O3/ZnO heterostructures have shown a response to the vapours of 1,3-dioxolane (DOL, C3H6O2), 1,2-dimethoxyethane (DME, C4H10O2), LiPF6, ethylene carbonate (EC) and dimethyl carbonate (DMC), which are typically used as components of the electrolytes in LIBs. The sensors showed a significant response to vapors produced by battery solvents or degassing products, significantly increasing the chances of developing new successful prototypes for safety monitoring. Density functional theory (DFT) calculations were employed to systematically compare the surface reactivity of the α-Al2O3(0001) and the ZnO101̅0 facets, as well as the Al2O3/ZnO101̅0 interface, towards C3H6O2, C4H10O2, nitrogen dioxide (NO2) and phosphorous pentafluoride (PF5), in addition to H2O to assess the impact of relative humidity on the performance of the gas detector. The scanning tunnelling microscopy (STM) images and molecular binding energies compare well with our experiments. The energies of molecular adsorption at the heterostructure suggest that humidity will not affect the detection of the volatile organic compounds. The results presented here show that the potential to detect vapors of the components used in the electrolytes of LIBs, combined with the size control provided by the synthesis method, makes these heterostructures extremely attractive in devices to monitor battery safety.

Anomalous electrochemical performance of binary silver–strontium phosphate-based electrode material in supercapattery

Mesoporous silver strontium phosphate (SSP) was synthesized through a facile hydrothermal technique and utilized as a positive electrode for supercapattery. Material's morphology, crystallinity, elemental composition, and homogeneity were carried out through SEM, TEM, XRD, EDS, XPS, and EDS mapping. Various electrochemical characterizations were performed in three as well as two electrode assemblies to ensure the ability of the material towards electrochemical charge storage. In fact, three-electrode results explore that the material possesses excellent performance in terms of specific capacity, lower series resistance, and negligible charge transfer resistance. After a conclusive three electrode assembly findings, an asymmetric supercapacitor was assembled by utilizing SSP as a positive electrode and as a counterpart carbon nanotube (CNT) as a negative electrode. This hybrid device reveals excellent electrochemical performance and was able to deliver a specific capacity of 240.0 C/g. Indeed, not only higher capacity was delivered by this device, nevertheless, its performance was remarkable in terms of high energy density and excellent power density. Besides, the rate capability for the supercapattery was estimated from GCD which was ∼77% at the highest current density of 12 A/g. The stability has a significant role in energy storage devices and was analyzed by charging and discharging the device, and the results demonstrate the outstanding specific capacity retention of 86.68% after 5000 cycles. Likewise, the device successfully holds coulombic efficiency of 95.79% by the end of 5000 charge-discharge cycles. Our analysis reveals that this material possesses remarkable energy performance which makes it applicable for future supercapattery devices.

An Advanced Alkaline Al-Air Fuel Cell Using l-Ascorbic Acid Interface Layer upon Al Anode via Gradient Anti-corrosion

Al metal is considered as an excellent anode material for metal-air fuel cells thanks to the advantages in terms of capacity and energy density. However, the anodic parasitic corrosion has brought great obstacles to the performance breakthrough of Al-air fuel cells. Herein, we innovatively develop an advanced organic interface layer on an Al anode via gradient anti-corrosion, wherein low-cost, nontoxic, and high-ionized l-ascorbic acid is used to modify two basic research systems, 4 M KOH and 4 M KOH electrolyte containing 0.3 M ZnO. The results show that the relative anti-corrosion efficiency of Al and Zn@Al anodes can be gradually enhanced with the increase of l-ascorbic acid concentration. The optimal modification concentration of l-ascorbic acid is 0.35 M. The capacity and anode utilization of the cell increase to 479.50 mAh/g and 16.09% at 20 mA/cm2 after the l-ascorbic acid modification of 4 M KOH, respectively, while an excellent capacity of 2208.39 mAh/g and an anode utilization of 74.09% can be achieved for the cell using an l-ascorbic acid interface layer on a Zn@Al anode at the same current density. The density functional theory reveals that the groups of O–C═C–O and C═O in the layer molecules tend to accept the electrons provided by the Al and Zn@Al surfaces and release more adsorption energy than free H2O. l-ascorbic acid molecules are adsorbed on the anode surface as a stable interface layer, achieving Al self-corrosion inhibition and promoting the sustainable development of Al-air fuel cells.