Supercapattery Devices Research Articles

"Synergistic Hybridization of Mn-MOF@rGO and Ti3C2 for High-Performance Supercapattery Devices and Hydrogen Evolution Reaction"

The burgeoning interest in two-dimensional (2D) materials stems from their heightened storage capacity and superior conductivity. Here, we synthesized a metal-organic framework of manganese (Mn-MOF) and introduced reduced graphene oxide (rGO) doping into this heterostructure using a hydrothermal method. Subsequently, Ti3C2Tx MXene was prepared via a template method. The Mn-MOF@rGO was then combined with Ti3C2Tx MXene in a 50/50 wt% ratio using hydrothermal techniques, and their structural and electrochemical characteristics were evaluated. In 3-electrode measurements, the MnMOF@rGO/Ti3C2Tx composite conductor exhibited a precise capacity of 2645 C/g (5.29 C/cm3) at 1.8 A/g. Furthermore, a hybrid device termed a supercapattery was fabricated employing MnMOF@rGO/Ti3C2Tx along with activated carbon (AC) composite electrodes, demonstrating remarkable energy density of 67 Wh/kg and an impressive power density of 880 W/kg. After 8,000 cycles, the electrode exhibited 84% capacity retention and maintained 92% columbic efficiency. In the hydrogen evolution reaction (HER), the MnMOF@rGO/Ti3C2Tx composite displayed a minimal Tafel slope of 54.65 mV/dec. These two-dimensional composite electrodes offer novel avenues for the advancement of high-performance energy device.

Optimization of FeMn-MOF doped with silver nanoparticles for high-performance supercapattery devices

Supercapacitors are demanded by energy storage devices for both fast charging and discharging performance as well as extended life cycles. The design and manufacture of higher supercapacitor electrodes help a device to function much better. Ag nanoparticles were produced on Fe-MOF and Mn-MOF using the hydrothermal synthesis technique to synthesize unique composite material called FeMn-MOF/Ag (NPs). These refined composites find use in supercapacitors, hydrogen evolution reactions (HER), and electrochemical sensors. Highly conductive silver nanoparticles were added to FeMn-MOF with high rate capability. Apart from their inherent benefits of metal–organic frameworks, the as-made FeMn-MOF/Ag nanoparticles also improved electrical conductivity. When the scan rate was 3 mV s−1, the FeMn-MOF/Ag (NPs) showed a specific capacity (CV) of 1417 C g−1. Similarly, when the applied current density was 2 A g−1, it displayed a specific capacity (GCD) of 2346 C g−1. The FeMn-MOF/Ag (NPs)//AC asymmetric supercapacitor exhibited an energy density of 13 (Wh/kg) and a power density of 1685 (W/kg). For the hydrogen evolution process, the material exhibited an overpotential of 90.22 mV and a Tafel slope of 58.4 mV dec−1. Furthermore, it exhibited exceptional durability in cycling, maintaining 93.3% of its capacitance after undergoing 12,000 cycles. Therefore, these results offer crucial insights into the progress of different electrode materials. The results suggest that FeMn-MOF/Ag nanoparticles possess advantageous characteristics suitable for utilization as electrodes in supercapattery and HER (hydrogen evolution reaction) applications.

Zinc manganite as an efficient battery-grade material for supercapattery devices

In the current context, supercapatteries emerge as highly desirable candidates capable of merging both energy and power density within a single device. Battery-type metal oxide materials, combined with capacitive-based materials, stand out as promising candidates for high-performance supercapatteries. This investigation centers on the synthesis of nanocrystalline ZnMn2O4 (ZMO) and CoMn2O4 (CMO) through a straightforward hydrothermal method, followed by their physico-electrochemical characterization. Electrochemical analysis reveals that ZMO exhibits notably enhanced charge storage capability compared to CMO. This superiority can be attributed to favourable electro-structural properties, and stable redox chemistry of ZMO. The real-time performance of ZnMn2O4 was further assessed by fabricating a hybrid asymmetric supercapattery device (ZnMn2O4||NrGO), which achieves a specific capacity of 232 C g−1 at a current density of 1 A g−1. The hybrid asymmetric device underwent rigorous stability testing for 4000 cycles at a current density of 2 A g−1, showcasing remarkable performance with a 92 % retention of its initial capacity. The device demonstrated a power density of 980 W kg−1 and an energy density of 63 Wh kg−1, highlighting its considerable promise in the field.

Correction: Incorporation of carbon nanotubes in sulfide-based binary composite to enhance the storage performance of supercapattery devices

Correction: Incorporation of carbon nanotubes in sulfide-based binary composite to enhance the storage performance of supercapattery devices

Anion containing novel porous Manganese-1,2,4-triazolate frameworks as battery-type electrode materials for supercapattery devices

Metal-organic frameworks (MOFs) have sparked much attention as electrode material for supercapattery devices due to their unique characteristics, providing porous structures with high surface areas and desirable pore sizes. Three new Mn-organic frameworks were solvothermally synthesised using three different manganese salts (MnX2·4H2O, where X = Cl, Br and NO3) with 1,2,4-triazole (Htrz) ligands. The newly synthesised UPMOFs (Universiti Putra Metal-organic Frameworks) denoted as UPMOF-4[Mn(Htrz)(DMA)Cl], UPMOF-5[Mn(Htrz)(DMA)Br] and UPMOF-6[Mn(Htrz)(DMA)NO3] showed a promising BET surface area of 1758 m2/g, 1724 m2/g and 895 m2/g. Then, the supercapattery device was fabricated using the battery-graded UPMOFs as positive electrodes sandwiched with activated carbon (AC) as a negative electrode. The designed supercapattery devices delivered good specific capacities and specific energies. After 5000 cycles, the UPMOFs showed promising capacity retention of 90.01 % (UPMOF-4), 85.2 % (UPMOF-5) and 76.4 % (UPMOF-6) indicating good stability. Thus, to compare the electrochemical performances among the UPMOFs, a theoretical calculation using the density functional theory (DFT) was performed. The DFT calculation of these UPMOFs revealed that UPMOF-4 had the lowest HOMO-LUMO energy gap (Egap) of 0.211 eV followed by UPMOF-6 (0.777 eV) and UPMOF-5 (1.198 eV). The UPMOF-4 with good framework stability, low Egap and large BET surface area contribute to its promising electrochemical performance.

Effective Energy Storage Performance Derived from 3D Porous Dendrimer Architecture Metal Phosphides//Metal Nitride-Sulfides.

The present work addresses the limitations by fabricating a wide range of negative electrodes, including metal nitrides/sulfides on a 3D bimetallic conductive porous network (3D-Ni and 3D-NiCo) via a dynamic hydrogen bubble template (DHBT) method followed by vapour phase growth (VPG) process. Among the prepared negative electrodes, the 3D-Fe3S4-Fe4N/NiCo nanostructure demonstrates an impressive specificcapacitance (Cs) of 1125 F g-1 (2475 mF cm-2) at 1 A g-1 with 80% capacitance retention over 5000 cycles. Similarly, a 3D-Mn3P nanostructured positive electrode fabricated via electrodeposition followed by a phosphorization process exhibits a maximum specific capacity (Cg) of 923.04 C g-1 (1846.08 mF cm-2) at 1 A g-1 with 80% stability. A 3D-Mn3P/Ni//3D-Fe3S4-Fe4N/NiCo supercapattery is also assembled, and it shows a notable CS of 151 F g-1 at 1 A g-1, as well as a high energy density (ED) of 51Wh kg-1,a power density (PD) of 782.57W kg-1 and a capacitance efficiency of 76% over 10000 cycles. This may be ascribed to the use of a bimetallic 3D porous conductive template and the attachment of transition metal sulfide and nitride. The development of negative electrodes and supercapattery devices is greatly aided by this exploration of novel synthesis techniques and material choice.

Tailoring the Effect of NiCo‐Metal‐Organic Frameworks by Doping Manganese as a Highly Active Redox Electrode for Electrochemical Energy Storage Technologies: Supercapattery Devices

Metal–organic frameworks with complex geometry have garnered significant attention in technological fields due to their diverse properties. Multimetallic metal‐organic frameworks (MOFs) have potential to demonstrate superior conductivity and efficiency compared to pristines, but, they have not been explored to research on large scale. Herein, significant effect of binary (NiCo‐) and ternary (NiCoMn‐) MOFs is explored with a novel approach using an organic ligand hexamethylene tetra‐amine (HMT). The as‐synthesized MOFs with their distinctive structures are thoroughly examined to analyze their structural, morphological, and electrochemical properties. In a standard half‐cell setup, the electrochemical behaviors of both samples are investigated, as both electrodes exhibit specific capacities of 349 and 905 C g−1, at 3 mV s−1, individually. Due to promising electrochemical responses of NiCoMnMOF, a supercapattery device is constructed as NiCoMnMOF//AC. This hybridization leads to the remarkable specific energy (78 Wh kg−1) and specific power (3500 W kg−1) with stability rate of ≈96% and Coulombic efficiency of 99% after undergoing 5000 galvanostatic charge–discharge cycles, making it highly suitable for modern applications. To gain better insight of supercapattery device, a semiempirical approach is employed, using Dunn's modulation. Thus, the synergy of NiCoMnMOF//AC in the single hybrid device exhibiting battery‐like characteristics holds tremendous potential for driving innovations in energy storage technology.

“Beyond conventional energy applications: Exploring the superiority of NiCu-MOF/NbS2//CNT-doped activated carbon for Supercapattery and oxygen evolution reactions”

Numerous investigations were conducted to produce effective electrode materials for applications such as energy storage and oxygen evolution reaction (OER). Bimetallic NiCu-MOF/NbS2 was synthesized and applied in supercapattery devices in this study. The NiCu-MOF/NbS2 electrode in a three-cell investigation revealed a specific capacity (Qs) of 1507C/g at a current density of 2.0 A/g. The Brunauer-Emmett-Teller (BET) measurement indicated a high specific surface area of 46 m2/g, which causes enhancement in the electrochemical performance. The supercapattery device (NiCu-MOF/NbS2) was also built using NiCu-MOF/NbS2 with CNT@activated carbon which showed a Qs of 194C/g. It had an energy density of 83 Wh/kg and a power density of 970 W/kg. The NiCu-MOF/NbS2 device can retain 97 % capacity retention after 20,000 GCD cycles. The NiCu-MOF/NbS2 was also tested in an oxygen evolution reaction and showed the least overpotential of 175 mV composite. The NiCu-MOF/NbS2 electrode had significant potential for energy storage devices and in OER applications.

Synergistic innovations in energy Storage: Cu-MOF infused with CNT for supercapattery devices and hydrogen evolution reaction

The tailoring and rational synthesis of metal–organic framework (MOF) with versatile nano/microarchitectures are of great academic interest due to their promising applications in advanced energy storage devices. A simple and cost-effective hydrothermal method was used to synthesize the carbon nanotubes (CNT) doped Cu-MOF, exhibiting astonishing power and energy density. The Brunauer-Emmett-Teller (BET) measurements were performed, which showed an enhanced surface area of 143 m2/g upon incorporation of CNT. The specific capacity of the Cu-MOF/CNT sample was increased up to 1876C/g compared to the Cu-MOF (1190C/g) and CNT (603C/g). Advance supercapattery was designed using Cu-MOF/CNT as the positive electrode while activated carbon (AC) as the negative electrode. The estimated specific capacitance of Cu-MOF/CNT//AC was 262C/g. To investigate the stability of the asymmetric device, it was subjected to 16,000 charging/discharging cycles that maintained 98.3 % its primary capacity. Consequently, the asymmetric device obtained energy and power density was 47 Wh/kg and 920 W/kg, respectively.

Metal organic framework derived NiCo layered double hydroxide anode aggregated with biomass derived reduced graphene oxide cathode: A hybrid device configuration for supercapattery applications

Metal-organic frameworks (MOFs), due to its exceptional characteristics like high specific surface area and design diversity, serve as an outstanding sacrificial template in forming layered double hydroxides (LDHs) for highly efficient electrodes in supercapattery devices. In this work, we have prepared bimetallic layered Nickel Cobalt LDH via in-situ etching of Co-ZIF, in different Nickel concentrations directly on Ni foam that enhances the interfacial contact between substrate and the material. The optimised NiCo LDH-2 sample exhibited remarkable electrochemical behaviour with fast electrolyte ion diffusion kinetics ideal for supercapattery device and delivered a high specific capacitance of 2567 Fg−1 at 1 Ag−1. Further, the supercapattery device assembled with Ni-Co LDH as anode and rGO derived from a sustainable source as cathode demonstrated an energy density of 21 Whkg−1, power density of 0.307 kWkg−1 and good cyclic stability with capacitance retention of 88.89 % along with coulombic efficiency of 90.58 % over 1500 cycles. This work proposes an effective approach for designing layered NiCo-LDH that can be further extended to the synthesis of other transition metal-derived LDH for supercapattery devices.

Unleashing the Full Potential of Electrochromic Heterostructured Nickel-Cobalt Phosphate for Optically Active High-Performance Asymmetric Quasi-Solid-State Supercapacitor Devices.

The rational design of hybrid systems that combine capacitor and battery merits is crucial to enable the fabrication of high energy and power density devices. However, the development of such systems remains a significant barrier to overcome. Herein, we report the design of a Ni-Co phosphate (Ni3-xCox(PO4)2·8H2O) nanoplatelet-based system via a facile coprecipitation method at ambient conditions. The nanoplatelets exhibit multicomponent synergy, exceptional charge storage capabilities, rich redox active sites (ameliorating the redox reaction activity), and high ionic diffusion rate/electron transfer kinetics. The designed Ni3-xCox(PO4)2·8H2O offered a respectable gravimetric specific capacity and marvelous capability rate (966 and 595 C g-1 at 1 and 15 A g-1) over the Ni3(PO4)2·8H2O (327.3 C g-1) and Co3(PO4)2·8H2O (68 C g-1) counterparts. Additionally, the nanoplatelets showed enhanced photoactive storage performance with a 9.7% increase in the recorded photocurrent density. Upon integration of Ni3-xCox(PO4)2·8H2O as a positive pole and commercial activated carbon as a negative pole, the constructed hybrid supercapacitor device with PVA@KOH quasi-gel electrolyte exhibits great energy and power densities of 77.7 Wh kg-1 and 15998.54 W kg-1 with remarkable cycling stability of 6000 charging/discharging cycles and prominent Coulombic efficiency of 100%. Interestingly, two assembled devices are capable of glowing a red LED bulb for nearly 180 s. This research paves the way to design and fabricate electroactive species via a facile approach for boosting the design of a plethora of supercapattery devices.

Correction: Synergetic electrochemical performance of Nix–Mnx sulfide-based binary electrode material for supercapattery devices

Correction: Synergetic electrochemical performance of Nix–Mnx sulfide-based binary electrode material for supercapattery devices

Correction to: Facile synthesis of strontium copper phosphate (SrCuPO4) binary composite for the high-performance supercapattery devices

Correction to: Facile synthesis of strontium copper phosphate (SrCuPO4) binary composite for the high-performance supercapattery devices

Zeolitic Imidazole Framework Derived Cobalt Phosphide/Carbon Composite and Waste Paper Derived Porous Carbon for High‐Performance Supercapattery

AbstractMetal–organic frameworks (MOFs) derived nanostructures receive immense research focus due to its high porosity, conductivity, and structural tailrolability features. In this work, porous Zeolitic Imidazole Framework‐67 (ZIF‐67) to synthesize cobalt phosphide/carbon composite (ZCoPC) that serves as a positive electrode is utilized. Furthermore, porous and conductive office paper derived carbon (OPC) are utilized as a negative electrode to make a hybrid system. The metalloid characteristics, high conductivity, and good porosity of ZCoPC material makes it a high‐performance battery like electrode. ZCoPC electrode achieves maximum specific capacity of 192.6 mAh g−1 at 1 A g−1 using 1 m potassium hydroxide (KOH) electrolyte. Furthermore, surface and diffusion charge participation investigation are also undergone for ZCoPC electrode that helps in determining the actual charge dynamics occurring in the electrode. In addition, a supercapattery device is assembled using ZCoPC as battery electrode and OPC as supercapacitor electrode. The as fabricated OPC//ZCoPC hybrid supercapattery device delivers extraordinary energy density of 31.6 Wh kg−1 with a power density of 700 W kg−1 and also a long cycle life of 92.3% even after 10,000 charge–discharge cycles. Hence, these outcomes demonstrate that the synergy of porous MOF derived metal phosphide and OPC electrodes are beneficial for supercapattery devices.

MnNbS/Polyaniline Composite‐Based Electrode Material for High‐Performance Energy Storage Hybrid Supercapacitor Device

Hybrid supercapacitor or supercapattery devices have gained significant attention for their impressive power (Pd) and energy densities (Ed), as well as their exceptional cyclic stability compared to traditional storage devices. In this study, manganese niobium sulfide (MnNbS) is synthesized using a hydrothermal method. To enhance the electrochemical performance of MnNbS, polyaniline (PANI) is blended at varying mass ratios. Initially, the electrochemical properties of MnNbS/PANI are evaluated using a three‐electrode configuration, consisting of working, counter, and reference electrodes. At a current density of 2 A g−1, MnNbS/PANI exhibits an improved specific capacity () of 1366 C g−1. Subsequently, to develop a supercapattery energy storage device, a two‐electrode system is constructed. This setup offers enhanced performance and flexibility, making it an ideal choice for high‐performance supercapacitors. Activated carbon (AC) and MnNbS/PANI are employed as the negative and positive electrodes, respectively, in the two‐electrode system. Notably, the device demonstrates outstanding energy density (Ed) of 26.2 Wh kg−1, power density (Pd) of 2072 W kg−1, and specific capacity of 118 C g−1. Furthermore, durability tests involving 1000 charge–discharge cycles reveal a capacity retention of 79%. This study suggests that MnNbS/PANI (at a weight ratio of 80/20%) holds promise as an electrode material for supercapattery applications.

Lithium Manganese Sulfates as a New Class of Supercapattery Materials at Elevated Temperatures.

To make supercapattery devices feasible, there is an urgent need to find electrode materials that exhibit a hybrid mechanism of energy storage. Herein, we provide a first report on the capability of lithium manganese sulfates to be used as supercapattery materials at elevated temperatures. Two compositions are studied: monoclinic Li2Mn(SO4)2 and orthorhombic Li2Mn2(SO4)3, which are prepared by a freeze-drying method followed by heat treatment at 500 °C. The electrochemical performance of sulfate electrodes is evaluated in lithium-ion cells using two types of electrolytes: conventional carbonate-based electrolytes and ionic liquid IL ones. The electrochemical measurements are carried out in the temperature range of 20-60 °C. The stability of sulfate electrodes after cycling is monitored by in-situ Raman spectroscopy and ex-situ XRD and TEM analysis. It is found that sulfate salts store Li+ by a hybrid mechanism that depends on the kind of electrolyte used and the recording temperature. Li2Mn(SO4)2 outperforms Li2Mn2(SO4)3 and displays excellent electrochemical properties at elevated temperatures: at 60 °C, the energy density reaches 280 Wh/kg at a power density of 11,000 W/kg. During cell cycling, there is a transformation of the Li-rich salt, Li2Mn(SO4)2, into a defective Li-poor one, Li2Mn2(SO4)3, which appears to be responsible for the improved storage properties. The data reveals that Li2Mn(SO4)2 is a prospective candidate for supercapacitor electrode materials at elevated temperatures.

Novel synthesis of cauliflower-like nanostructured ZnFe2O4 high-performance electrode for supercapattery applications

ABSTRACT Nowadays, immense attention has been paid toward the rational design and synthesis of high-power density electrodes materials for high-power supercapattery applications. In the present work, ZnFe2O4 nanostructures with unique cauliflower-like morphology were deposited on a flexible nickel foam substrate using a simple, cost-effective, and environmentally friendly electrodeposition method. The synthesized nanostructures were thoroughly examined by using structural, morphological, and electrochemical characterization techniques. Electrochemical studies of cauliflower-like nanostructured ZnFe2O4 electrode show a deviation from normal behavior and favored a mixed supercapacitor-battery-type nature. The value of specific capacity is obtained as 513 C g−1 at a current density of 1 Ag−1. The cauliflower-like nanostructured ZnFe2O4 electrode exhibits remarkable energy density and power density of 8.72 Wh kg−1 and 306.25 W kg−1 , respectively. Also, it shows long-term cyclic stability up to 5000 cycles with a maximum capacitance retention rate of 72%. These results signify that the high electrochemical performance and excellent stability of the cauliflower-like nanostructured ZnFe2O4 electrode material relate to their unique architecture, high energy, and power density for supercapattery devices.

Improving the Energy Storage of Supercapattery Devices through Electrolyte Optimization for Mg(NbAgS)x(SO4)y Electrode Materials.

Electrolytes are one of the most influential aspects determining the efficiency of electrochemical supercapacitors. Therefore, in this paper, we investigate the effect of introducing co-solvents of ester into ethylene carbonate (EC). The use of ester co-solvents in ethylene carbonate (EC) as an electrolyte for supercapacitors improves conductivity, electrochemical properties, and stability, allowing greater energy storage capacity and increased device durability. We synthesized extremely thin nanosheets of niobium silver sulfide using a hydrothermal process and mixed them with magnesium sulfate in different wt% ratios to produce Mg(NbAgS)x)(SO4)y. The synergistic effect of MgSO4 and NbS2 increased the storage capacity and energy density of the supercapattery. Multivalent ion storage in Mg(NbAgS)x(SO4)y enables the storage of a number of ions. The Mg(NbAgS)x)(SO4)y was directly deposited on a nickel foam substrate using a simple and innovative electrodeposition approach. The synthesized silver Mg(NbAgS)x)(SO4)y provided a maximum specific capacity of 2087 C/g at 2.0 A/g current density because of its substantial electrochemically active surface area and linked nanosheet channels which aid in ion transportation. The supercapattery was designed with Mg(NbAgS)x)(SO4)y and activated carbon (AC) achieved a high energy density of 79 Wh/kg in addition to its high power density of 420 W/kg. The supercapattery (Mg(NbAgS)x)(SO4)y//AC) was subjected to 15,000 consecutive cycles. The Coulombic efficiency of the device was 81% after 15,000 consecutive cycles while retaining a 78% capacity retention. This study reveals that the use of this novel electrode material (Mg(NbAgS)x(SO4)y) in ester-based electrolytes has great potential in supercapattery applications.

The MOF-originated NiCu-POx/NGQD for efficient supercapattery devices and hydrogen evolution reaction

Due to the high viability of electrochemical energy resources and their storage techniques in the present climate, supercapacitors and water-splitting electrolysis have seen dramatically increased attention in modern days. We presented the synthesis of nickel-copper phosphate (NiCu-POx) nanosheets from the phosphorization of the nickel-copper metal-organic framework (NiCu-MOF) at a limited temperature. Further, the addition of nitrogen-doped graphene quantum dots (NGQD) in the Ni–Cu-POx was also studied. SEM, XRD, and XPS were used to analyze the structural and elemental composition of the synthesized materials. Further, Brunauer-Emmett-Teller (BET) measurements showed an enhancement in surface area when NGQDs were introduced into the heterostructure of NiCu-POx. An extraordinary value of specific capacity (1431 C-g−1 at 1.4 Ag-1) was achieved with NiCu-POx/NGQDs. Supercapattery device (NiCu-POx/NGQDs//PANI@AC) was fabricated with polyaniline doped activated carbon as the negative and NiCu-POx/NGQDs as the positive electrode. The specific capacity of the real device (NiCu-POx/NGQDs//PANI@AC) was 224 C-g−1 at 2.0 Ag-1. The energy density for this asymmetric device (NiCu-POx/NGQDs//PANI@AC) was 73 Whkg−1 at 980 Wkg-1 power density. The device (NiCu-POx/NGQDs//PANI@AC) was subjected to 10,000 charge-discharge cycles to test its durability. After 10,000 cycles NiCu-POx/NGQDs//PANI@AC demonstrates an outstanding 86% reservation of capacity. The NiCu-POx/NGQDs showed a small overpotential of 138 mV during the 24 h HER test. According to our findings, NiCu-POx/NGQDs proved to be a suitable electrode material for prospective supercapattery and HER applications.

Ultrathin α-Ni(OH)2 nanosheets coated on MOF-derived Fe2O3 nanorods as a potential electrode for solid-state hybrid supercapattery device

The versatility of supercapacitors in energy storage applications has garnered much interest. Specifically, to improve the energy density by combining with the outstanding power density in higher energy density batteries to appear as supercapattery. Herein, for the first time, we propose a Fe2O3/α-Ni(OH)2 as an electrode for solid-state hybrid supercapattery. We construct ultrathin α-Ni(OH)2 nanosheets coated on MOF-derived Fe2O3 via the chemical bath method. The Fe2O3/α-Ni(OH)2 composite exhibits excellent electrochemical properties, including high specific capacity around 511.5 C/g (930 F/g) at 1 A/g with outstanding cycle stability (88.3%, 10,000th cycles) and the porosity of the material reveals a good surface area of 202 m2/g. The kinetic analysis reveals that Fe2O3@α-Ni(OH)2 exhibits diffusion-controlled faradaic behaviour (51% diffusion-controlled contributions). As a hybrid supercapattery, the Fe2O3@α-Ni(OH)2//Activated carbon exhibits a specific energy density of 44.51 Wh/kg and specific power density of 2465 W/kg and excellent long-term cycling stability (keep over 90.5% of the initial specific capacitance after 4000 cycles). Three prototype hybrid supercapattery devices (Fe2O3@α-Ni(OH)2(+)||Activated carbon(−)) connected in series were used to demonstrate red LED lighting. This study offers a unique approach to constructing high-performance, low-cost, and ecological green energy storage systems.