Article
Chemistry, Multidisciplinary
Liqiong Zhang, Yujie Zhang, Shenghui Jiao, Junliu Zhang, Xin Zhao, Honglei Chen, Jianchun Jiang
Summary: Supercapacitors with high-power density are emerging materials for energy storage and conversion systems. However, preparing high-performance electrodes with high mass loading is still a challenge. In this study, chitosan and active carbon (SSP-900) were combined to synthesize a high mass-loading freestanding electrode. The resulting C(1000)G(0.2) material exhibited outstanding electrochemical properties, including high specific mass capacitance and specific area capacitance. A symmetrical supercapacitor assembled with 12 mg mass loading showed large specific capacitance, high energy density, and capacitance stability. The distinguished electrochemical performance of freestanding electrodes has prospective applications in storing and converting electrical energy from intermittent solar and wind sources.
Review
Materials Science, Multidisciplinary
Majid Shaker, Ali Asghar Sadeghi Ghazvini, Weiqi Cao, Reza Riahifar, Qi Ge
Summary: Electrochemical capacitors, or supercapacitors, have become increasingly important in electrochemical energy storage devices in recent years. Activated carbons, especially those prepared from biomass precursors, show excellent performance as electrode materials for supercapacitors.
NEW CARBON MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Sandra Roche, Christelle Yacou, Corine Jean Marius, Ronald Ranguin, Marckens Francoeur, Pierre-Louis Taberna, Nady Passe-Coutrin, Sarra Gaspard
Summary: Since 2011, large amounts of pelagic Sargassum algae have been washed up along Caribbean beaches and the Gulf of Mexico, causing negative impacts on the economy and environment. Therefore, it is important to develop strategies to mitigate this problem and utilize the invasive biomass effectively. This study successfully utilized pelagic Sargassum seaweed to fabricate carbon materials for supercapacitor electrodes.
Article
Chemistry, Applied
Minjun Kim, Hyunsoo Lim, Xingtao Xu, Md Shahriar A. Hossain, Jongbeom Na, Nur Nadia Awaludin, Jagrat Shah, Lok Kumar Shrestha, Katsuhiko Ariga, Ashok Kumar Nanjundan, Darren J. Martin, Joseph G. Shapter, Yusuke Yamauchi
Summary: Biomass-derived carbons are widely studied as cost-effective energy storage materials with high performance due to their high specific surface area and the effectiveness of strategies like increasing surface area and introducing heteroatom doping. Porous carbon materials derived from sorghum stem show significantly higher specific capacitance after KOH activation, demonstrating their versatility in applications like capacitive deionization. The performance trend observed in both supercapacitors and CDI for all carbon samples is consistent due to the exploitation of carbon material's electrostatic double-layer capacitance behavior.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Physical
Hamid Reza Naderi, Pooya Nadri, Amir Mohammad Sorouri, Mohammad Reza Ganjali, Hermann Ehrlich, Mehdi Rahimi-Nasrabadi, Farhad Ahmadi
Summary: For the first time, Eu-2(WO4)(3) nanoparticles (EWNPs) were successfully fabricated and anchored on reduced graphene oxide (RGO) to form EWNP/RGO nano-composites. The resulting nanostructured material exhibited high specific capacitance and good supercapacitive behavior, with relatively high capacitance retention after cycling tests.
SURFACES AND INTERFACES
(2022)
Article
Energy & Fuels
Shuai Zhang, Ying Huang, Yifeng Ruan, Jiaming Wang, Xiaopeng Han, Xu Sun
Summary: To meet the demands of future high-tech systems, such as smart wearables, internet of things, and smart cities, lightweight, flexible, patterned, and environmentally friendly electronic devices need to be developed. MXene and citrus-based carbon nanosheet composites (MX/CCNS) are prepared via electrostatic self-assembly, showing excellent energy storage properties and cyclic stability. MX/CCNS can be easily fabricated into flexible self-supporting electrodes and ink for screen printing and large-scale continuous preparation of patterned electrodes. They exhibit high specific capacitance and cycling stability, making them ideal for scalable and sustainable production of next-generation wearable intelligent electronics.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Analytical
Yao Sun, Jianjun Xue, Zhiwei Li, Bing Ding, Yufeng An, Shuai Zang, Hui Dou, Jiangmin Jiang, Xiaogang Zhang
Summary: A eco-friendly and facile approach has been applied to synthesize PCFs with tunable multi-level pores and satisfactory electrochemical performance in this study. Utilizing electrospinning technology, hard-template method, and carbonization process, nanofibers with interconnected multi-level pores were achieved for enhanced electrochemical performance. The engineered PCFs demonstrated high capacitance and excellent rate capability, along with symmetrical supercapacitors exhibiting good capacitance and high energy density with ionic liquid electrolyte.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Chemical
Qian Li, Tingyan Lu, Linlin Wang, Ruixue Pang, Jiawei Shao, Linlin Liu, Xin Hu
Summary: In this study, N-doped porous carbons were synthesized using biomass lotus stalks, showing excellent CO2 adsorption properties and electrochemical performance, indicating potential applications in CO2 capture and supercapacitors.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Kourosh Adib, Esmail Sohouli, Masoumeh Ghalkhani, Hamid Reza Naderi, Zolfaghar Rezvani, Mehdi Rahimi-Nasrabadi
Summary: The goal of this research was to synthesize an Ag2WO4/RGO nanocomposite through sonochemical method and investigate its electrochemical performance for supercapacitor electrodes. The Ag2WO4/RGO-based electrodes exhibited high specific capacitance, energy density, excellent cyclic stability, and mechanical stability, making it a promising material for supercapacitor construction.
CERAMICS INTERNATIONAL
(2021)
Article
Agricultural Engineering
Asim A. Mohammed, P. K. Panda, Arpeeta Hota, B. C. Tripathy, Suddhasatwa Basu
Summary: In this study, multi-heteroatom self-doped porous carbon derived from Hyphaene fruit shell was successfully synthesized, showing excellent electrochemical performance. A NiMoO4@NiCo2O4 hybrid nanostructure was also prepared as the positive electrode, exhibiting high specific capacitance and cycling stability. The asymmetric all-solid-state supercapacitor based on these materials showed promising electrochemical performances for energy storage applications.
BIOMASS & BIOENERGY
(2023)
Article
Materials Science, Multidisciplinary
Pelin Ozpinar, Ceren Dogan, Hakan Demiral, Ugur Morali, Salim Erol, Derya Yildiz, Canan Samdan, Ilknur Demiral
Summary: This study introduced the electrochemical performance of electrode materials based on two commonly used binders, PVDF and PTFE. The electrochemical performance of activated carbon electrodes was studied using cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy techniques. The results showed that AC-500-PTFE exhibited higher capacitance values at low current rates, while AC-500-PVDF had higher capacitance values for current rates higher than 1.5 A g-1. The impedance model indicated that the AC-500-PVDF had higher capacitance inside the pores, while the AC-500-PTFE had higher capacitance on the electrode surface. Therefore, PTFE binder is recommended for low current density applications, while PVDF binder is preferred for high current density applications.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Energy & Fuels
Vishnu Surendran, Raveendran S. Arya, Thazhe Veettil Vineesh, Binson Babu, Manikoth M. Shaijumon
Summary: This study demonstrates the use of coconut sprout as a precursor for highly efficient carbon-based electrode materials and separators, showing great potential for capacitive and hybrid energy storage systems. The fabricated hybrid sodium ion capacitor and symmetric supercapacitor cells both exhibit excellent performance in terms of specific energy and power, highlighting the potential of bio-derived engineered carbon materials for energy-related applications.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Yi Sun, Yudan Yuan, Xianwei Geng, Chi Han, Shenkai Lu, Ivona Mitrovic, Li Yang, Pengfei Song, Cezhou Zhao
Summary: This study presents a simple hydrothermal reaction method to adjust the pore size of activated biomass materials for enhanced specific capacitance. The Ti3C2Tx and rGO nanosheets hydrogel demonstrates the best specific capacitance of 403 F g(-1) at 2 mV s(-1), which is approximately 1.5 times higher than pure activated pleumtus eryngii. Additionally, this work provides a technological strategy to reuse commercial activated biochar and has broad industrial applications.
Article
Chemistry, Physical
Yan Gao, Jiaming Wang, Ying Huang, Song Zhang, Shuai Zhang, Junhui Zou
Summary: In this study, squid ink was introduced for the first time as N-doped biomass carbon into self-supporting flexible supercapacitors. By regulating the squid ink content, activation temperature, and KOH-assisted activation mass ratio, an N-doped porous biomass carbon@polyacrylonitrile (NPBC-1.5@PAN-800-2) with ideal capacity and excellent specific surface area was prepared. Furthermore, the addition of ZnO optimized the capacity and provided a high specific capacitance, satisfactory capacitance retention, and impressive energy density for the flexible asymmetric supercapacitor.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yinan Tang, Lu Lu, Xiaoxian Zang, Buhuan Wang, Xiangrong Ye
Summary: The KOH-activated carbon materials prepared from cellulose and lignin, two biomass-derived carbon sources, were compared. The blend of cellulose with lignin in a mass ratio of 1:1 exhibited the highest specific surface area and energy storage performance.
Article
Chemistry, Multidisciplinary
Xiaoying Gao, Xuan Xie, Kanjun Sun, Xiaofei Lei, Tianyu Hou, Hui Peng, Guofu Ma
Summary: The Fe, N co-doped carbon electrocatalyst prepared using inorganic molten salts and ethylenediaminetetraacetic acid exhibited high specific surface area and appropriate pore size. This material can promote oxygen adsorption, enhance the oxygen reduction interface, and improve the electron/charge transfer processes, leading to improved electrocatalytic performance. The Fe-3-N-C-800 electrocatalyst showed good catalytic activity for ORR, high stability, and methanol tolerance, with potential applications in Zn-air batteries.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Lihua Li, Yinghu Ma, Haohao Yang, Jing Niu, Haoran Yang, Faqiang Wang, Chengxian Hu, Yubao Zhang, Xiaolin Guan, Hui Peng, Guofu Ma
Summary: In this study, an olefin-based covalent organic framework (COF-Py-AN) was synthesized for the selective sensing of aromatic amines. The framework exhibited fluorescence quenching in the presence of aromatic amines and displayed excellent selectivity against various aromatic molecules. Furthermore, it could discriminate between aromatic and aliphatic amines.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Engineering, Chemical
Miaoran Zhang, Mingxin Zhang, Kanjun Sun, Xuan Xie, Haikuo Lei, Hui Peng, Guofu Ma
Summary: A novel FeP nanoparticles self-embedded P, N-codoped hierarchical porous carbon catalyst (FeP@NPC-90-900) has been successfully synthesized, exhibiting excellent catalytic performance for oxygen reduction reactions (ORR). The catalyst shows high catalytic activity, stability, and good methanol resistance in alkaline media, surpassing the performance of commercial Pt/C catalysts.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Nanoscience & Nanotechnology
Hui Peng, Xin Wang, Zhiyuan Liu, Haikuo Lei, Shuzhen Cui, Xuan Xie, Yangfei Hu, Guofu Ma
Summary: In this study, a facile and effective strategy was constructed to suppress the growth of Zn dendrites and enhance the cycling stability of Zn anodes by growing ZnO nanowire arrays on Zn foil. The introduction of superfine and interlaced ZnO nanowire arrays provided uniform nucleation sites and high electrical conductivity, promoting rapid diffusion and migration of Zn ions on the Zn anode surface. The assembled ZnO@Zn//NPHC Zn ion capacitor achieved outstanding cycling stability and high specific capacity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Xuan Xie, Hui Peng, Kanjun Sun, Xiaofei Lei, Ruiqi Zhu, Zhe Zhang, Guofu Ma, Ziqiang Lei
Summary: In this study, FeNi3@NC catalyst with multi-structure of 0D/1D/3D was successfully synthesized. By modulating the electronic configuration and utilizing pyridinic-N as the active site, a new approach to solve the sluggish kinetics of ORR/OER in zinc-air batteries was proposed. The FeNi3@NC catalyst exhibited excellent catalytic activity and stability, and the assembled zinc-air battery showed high power density and long-term stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Nan Xu, Haikuo Lei, Tianyu Hou, Xin Wang, Yangfei Hu, Hui Peng, Guofu Ma
Summary: In this study, nanostructured metal oxides and chalcogenides, Co0.85Se and Fe2O3, were successfully prepared from Prussian blue and Prussian blue analogues, which showed good cycle life and high capacity retention as positive and negative electrode materials in an asymmetric supercapacitor. The assembled Co0.85Se//Fe2O3 asymmetric supercapacitor exhibited a wide output potential, acceptable energy density, and good cycling durability, indicating the potential practical applications of Prussian blue analogs as electrode materials in energy storage fields.
ELECTROCHIMICA ACTA
(2023)
Article
Nanoscience & Nanotechnology
Hui Peng, Fan Yang, Xin Wang, Enke Feng, Kanjun Sun, Lili Hao, Xusheng Zhang, Guofu Ma
Summary: In this study, a facile and rapid method was used to prepare multifunctional ionogels with high transparency, excellent mechanical properties, self-healing ability, and adhesion. The ionogels also exhibited excellent environmental tolerance and sensing performance, making them suitable for wearable devices and ionotronics.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Hui Peng, Xin Wang, Fan Yang, Zhiyuan Liu, Haikuo Lei, Shuzhen Cui, Xuan Xie, Guofu Ma
Summary: This study proposes a method to stabilize the Zn anode in Zn-based energy storage devices by adding DT additive to weaken and reconstruct the solvated structure of Zn2+. The optimized Zn anodes in ZnSO4 + DT electrolyte exhibit enhanced cycling stability and high Coulomb efficiency. Additionally, Zn-ion hybrid capacitors assembled with ZnSO4 + DT electrolyte and N, P co-doped hard carbon as cathode show high discharge capacity and superior capacity retention.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yangfei Hu, Haikuo Lei, Fei Wang, Xusheng Zhang, Xuan Xie, Hui Peng, Guofu Ma
Summary: Transition metal phosphides (TMPs), especially those with high atomic percentages of phosphorus, are attractive electrode materials due to their metallization properties, electrical conductivity, redox activity, and theoretical capacity. This study proposes a hydrothermal and phosphating strategy to synthesize a self-supporting porous Ni5P4 microsphere. The microsphere exhibits a high specific capacity of 450.1 C g-1 and good rate capability. Additionally, an asymmetric supercapacitor based on Ni5P4 microsphere and activated carbon electrodes demonstrates high specific energy and cycling stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Environmental Sciences
Xiangbing Wang, Xiaoxia Li, Wutang Sang, Hui Peng, Guofu Ma
Summary: A novel eco-friendly polyvinyl alcohol-straw biodegradable agricultural film with enhanced water resistance, mechanical properties, and degradability has been successfully prepared using a simple film coating method. This film shows great potential for large-scale production and application in the field of biodegradable films.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Nanoscience & Nanotechnology
Ming Zhong, Xue Guo, Lingling Li, Yun-Wu Li, Kun Zhao, Hui Peng, Xiaobo Zhang
Summary: In this study, heterophase nanocomposites of carbon-coated copper selenide and molybdenum dioxide were synthesized using polyoxometalate-based metal-organic frameworks as self-templates. By tuning the pyrolysis temperature, the phase transformation of copper selenides was achieved, leading to improved electrochemical performance with higher cycle stability and rate capability.
ACS APPLIED NANO MATERIALS
(2023)
Review
Nanoscience & Nanotechnology
Wenjuan Li, Miaoran Zhang, Xuan Xie, Aoji Liang, Hui Peng, Guofu Ma, Yuxi Xu
Summary: This paper presents a rational and simple method for preparing FeCo bimetallic alloy nanoparticles on nitrogen-doped dodecahedral porous carbon. The synthesized catalyst exhibits a multilayered porous structure, a high specific surface area, and an abundance of active centers, resulting in excellent catalytic activity for the oxygen reduction reaction. The catalyst also demonstrates notable performance as an air cathode in a zinc-air battery, with high open-circuit voltage, specific capacity, and stability.
ACS APPLIED NANO MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Xuan Xie, Hui Peng, Guofu Ma, Ziqiang Lei, Yuxi Xu
Summary: Studies have shown that the intrinsic activity of M-N-C catalysts can be improved by adjusting the doping of heteroatoms, leading to enhanced catalytic activity for the oxygen reduction reaction (ORR). Furthermore, the applications of heteroatom-doped M-N-C catalysts in fuel cells and Zn-air batteries are briefly reviewed. Finally, the challenges and prospects for the future development of heteroatom-doped M-N-C catalysts for ORR are discussed.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Lihua Li, Haohao Yang, Xin Wang, Yinghu Ma, Weizhi Ou, Hui Peng, Guofu Ma
Summary: Covalent organic frameworks (COFs) are attractive cathode materials for aqueous rechargeable zinc-ion batteries (ZIBs) due to their ability to enhance the capacity and reversibility of ZIBs. The introduction of anthraquinone carbonyl active site has been found to improve the performance and stability of ZIBs.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Xiangbing Wang, Guofu Ma, Shuzhen Cui, Kanjun Sun, Wenbin Li, Hui Peng
Summary: This study developed a solar-driven aerogel for atmospheric water harvesting, which showed low density, high water uptake capability, and rapid water evaporation. The aerogel can be used for water collection in arid areas.
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)
