Article
Chemistry, Physical
Weilun Chen, Kongyao Chen, Rui Zeng, Min Wan, Yixuan Guo, Yaqi Liao, Jiayu Peng, Wuxing Zhang, Yunhui Huang
Summary: This study presents a design of an S-containing artificial solid electrolyte interphase (SEI) layer to alleviate the volume expansion and improve Li+ transport of silicon anodes in high-energy lithium-ion batteries. The results show that the silicon anode coated with the S-ARSEI layer maintains a high reversible capacity and exhibits excellent rate performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Shuwei Wang, Dongqing Liu, Xingke Cai, Lihan Zhang, Yuanming Liu, Xianying Qin, Rui Zhao, Xiaojie Zeng, Cuiping Han, Chun Zhan, Feiyu Kang, Baohua Li
Summary: Recent research has shown that the capacity and cycling performance of graphite-based hybrid anodes can be greatly improved by regulating the structural uniformity of the electrolyte and achieving an ideal solid electrolyte interface (SEI). The graphite anode with the designed SEI exhibited high initial capacity and cycling stability, outperforming previous graphite-based lithium ion or metal anodes. Pre-depositing limited lithium capacity on the graphite anode coupled with a LiFePO4 cathode resulted in stable cycling performance, highlighting the potential for reversible capacity enhancement through appropriate electrolyte design and SEI structural regulation.
Article
Chemistry, Physical
Wenqiang Zhu, Jun Zhou, Fan Zhang, Tingting Li, Yahui Yang, Jiang Yin, Zhongliang Tian, Wenzhang Li, Yanqing Lai, Lishan Yang
Summary: This study presents the design of a moderately cross-linked polymer binder for silicon anodes in lithium-ion batteries. The binder addresses the challenges associated with silicon materials, such as volume expansion and unstable solid electrolyte interphase (SEI) layer. The resulting silicon anodes demonstrate superior cycling performance and good mechanical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Dong-Chen Jia, Yuan-Yong Feng, Chuan-Long Zhang, Jian-Jiang Li, Bin-Wei Zhang, Yu-Hai Dou, Jagadish Chandra Roy, Xiao-Yi Zhu, Lei Zhang
Summary: A flexible carbon fiber-confined yolk-shelled silicon-based composite is reported as an anode material for lithium storage applications. The material exhibits improved structural stability, cycling life, conductivity, and tap density.
Review
Chemistry, Multidisciplinary
Dafang He, Junhong Lu, Guangyu He, Haiqun Chen
Summary: This mini-review summarizes recent developments in the SEI layer for lithium metal batteries (LMBs) and discusses the relationship between SEI layer optimization and electrochemical properties. Furthermore, future directions for the development of a stable SEI layer are proposed.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Franziska Allgayer, Julia Maibach, Fabian Jeschull
Summary: Graphite in potassium-ion batteries shows a faster capacity fade compared to lithium-ion batteries, possibly due to the reactivity of the potassium metal counter electrode or the instability of the solid electrolyte interphase. Previous studies have focused on different electrolyte formulations or charge states of graphite electrodes in potassium half cells. This study compares the surface layers in both charged and discharged states of lithium and potassium half cells, revealing significant differences in SEI composition.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Chi Zhang, Zhengfan Chen, Haiyan Wang, Yanmei Nie, Jun Yan
Summary: Fe2O3 nanoparticles with multicavity structures were successfully synthesized using a microwave-assisted-template method, showing excellent electrochemical performance when used as anode materials for lithium-ion batteries. The unique advantages of nanomaterials, high surface area, and large pore volume contribute to the improved movement of electrolyte and reduced resistance in Fe2O3-MW-4h nanoparticles.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Zijin Yang, Xianying Qin, Kui Lin, Qiuchan Cai, Cuiping Han, Feiyu Kang, Baohua Li
Summary: A template-free heterogeneous carbonization strategy was reported for fabricating SnO2/carbon/void/carbon nanofibers compound membrane, which acts as a buffer layer for volume changes of SnO2. Reduced graphene oxide was introduced to construct a free-standing electrode with a conductive network for improved electrochemical performances in lithium/sodium-ion batteries. The SCVC-rGO anodes showed higher reversible capacity, longer lifespan, and superior rate capability in both battery systems.
Article
Chemistry, Physical
Yao Zhang, Chaoye Zhu, Zhihong Ma
Summary: Silicon has been widely accepted as a promising anode material for new-generation lithium-ion batteries due to its high lithium storage density and abundant mineral resources. This study proposed a simple and environmentally friendly method to prepare a Si-Cu3Si composite with coherent phase boundaries, which significantly improves the cyclic stability of silicon anodes. The effects of morphology, composition, and structure on the electrochemical performance of the nano-sized Si@Cu3Si anode were clarified through various analyses.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Yue Sun, Yuhang Wang, Liwei Jiang, Dejian Dong, Wanwan Wang, Jun Fan, Yi-Chun Lu
Summary: A hybrid-solvent electrolyte was designed by dispersing non-nucleophilic and non-fluorinated compounds in a weakly coordinating solvent, which significantly improved the cycle life of a magnesium anode and realized a stable cycle life of Mg-Mo6S8 full cells.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Fei Wang, Han Gao, Zhao-Yu Niu, Yao-Peng Zheng, Ming-Yan Chuai, Jia-Nan Xu
Summary: In this study, silicon oxide (SiOx) anode materials with high Coulombic efficiency and stable cycling performance were successfully prepared using hydrolysis and in situ polymerization methods. The size and microstructure of the SiOx materials were regulated by different silane coupling agents, leading to improved electrochemical performance. This study demonstrates that modulating the hydrolysis of siloxane using silane coupling agents is a potential method for preparing high-performance SiOx materials.
Article
Chemistry, Physical
Jianwei Zhang, Yunyun Zhong, Shuanjin Wang, Dongmei Han, Min Xiao, Luyi Sun, Yuezhong Meng
Summary: By designing a single ion conducting artificial polymer SEI layer on the surface of the Li anode, this study effectively improves lithium batteries' performance, facilitates uniform Li deposition, suppresses dendrite growth, reduces side reactions, and extends battery lifespan.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Ming-Ming Liu, Hai-Tao Yu, Lang Yuan, Ting-Feng Yi, Fei He, Ying Xie
Summary: Hierarchical Zn3V2O8 microspheres assembled by two-dimensional nanosheets were successfully synthesized, and carbon nanotubes were introduced to improve the stability and conductivity of the composite. The as-prepared composite exhibited a reversible capacity of 1049.5 mAh center dot g(-1) with a capacity retention of about 81% after 100 cycles, indicating its promising application as an anode material for lithium-ion batteries.
Article
Electrochemistry
Junchao Zhu, Tao Yang, Yunhan Fu, Bibo Sheng, Rongying Lin
Summary: A Si@SnS anode material was developed using a simple hydrothermal method, showing excellent performance in lithium-ion batteries by improving solid electrolyte interphase stability and conductivity.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Hongyang Li, Ling Li, Jingang Zheng, Hao Huang, Han Zhang, Baigang An, Xin Geng, Chengguo Sun
Summary: A convenient and efficient strategy is proposed to construct a Li3N-based interlayer between solid poly(ethylene oxide) (PEO) electrolyte and Li anode by in situ thermal decomposition of 2,2 '-azobisisobutyronitrile (AIBN) additive. The Li3N nanoparticles evolved from the decomposition can combine with LiF, cyano derivatives, and PEO electrolyte to form a buffer layer during the cell cycle, which improves the stability and homogeneity of Li deposition. The Li||Li symmetric cells with Li3N-based interlayer exhibit excellent cycle stability, with a cycle life at least 4 times longer than that of PEO electrolytes without Li3N layer. This work provides a convenient strategy for interface engineering in solid-state polymer electrolyte and Li anode.
Article
Chemistry, Multidisciplinary
Xiyang Cai, Fan Yang, Lu An, Cehuang Fu, Liuxuan Luo, Shuiyun Shen, Junliang Zhang
Summary: Researchers have intensively investigated the electrochemical nitrogen reduction reaction (NRR) as a potential next-generation technology for ammonia production. They found that no discernible amount of ammonia was detected in either acidic or alkaline solutions when evaluating the performance of commercial noble metal nanocatalysts. An effective method was proposed to remove pre-existing pollutants by consecutive cyclic voltammetry scans, ensuring reliable and reproducible results.
Article
Chemistry, Multidisciplinary
Qingqing Cheng, Shuai Yang, Cehuang Fu, Liangliang Zou, Zhiqing Zou, Zheng Jiang, Junliang Zhang, Hui Yang
Summary: A cobalt oxide aided structural evolution strategy was presented to controllably synthesize high-loaded Pt1Co1 intermetallic compounds with enhanced ORR activity and durability. The ordered arrangement of Pt-Co atoms endowed surface Pt with a lowered d band centre and enhanced oxidation resistance of Pt/Co sites, boosting both ORR activity and durability simultaneously. The optimized catalyst exhibited record-high power density and exceeded the DOE target, confirming the superiority of high-loaded Pt1Co1 intermetallic compounds in activity expression under fuel cell conditions.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Zhifeng Zheng, Liuxuan Luo, Shuiyun Shen, Guanghua Wei, Junliang Zhang
Summary: This study explores various strategies to mitigate Pt degradation in proton exchange membrane by considering Pt ion transport. The results show that promoting the Pt band away from the cathode and lowering the Pt ion diffusivity effectively reduce the loss of electrochemical surface area (ECSA) and improve fuel cell durability. Additionally, an inversive transport of Pt ions from membrane to the cathode was observed during the cathodic sweep. The study also evaluates the limit values of mitigated ECSA loss.
JOURNAL OF POWER SOURCES
(2022)
Review
Chemistry, Physical
Xiaohui Yan, Zhiling Xu, Shu Yuan, Aidi Han, Yuanting Shen, Xiaojing Cheng, Yuwei Liang, Shuiyun Shen, Junliang Zhang
Summary: This review summarizes the importance of PFSA ionomer in proton exchange membrane fuel cells (PEMFCs) and its influence on fuel cell performance. By comparing the properties of PFSA bulk membrane and ultrathin ionomer film, as well as the microstructure and proton conduction behavior of the ionomer in the catalyst layer, the impact mechanism of the ionomer on fuel cell performance is revealed. Modifying the chemical structure of the ionomer and engineering the interaction between the ionomer and catalyst hold promise for greatly improving the performance of ultra-low platinum loading PEMFCs.
JOURNAL OF POWER SOURCES
(2022)
Review
Chemistry, Physical
Huiyuan Li, Xiaojing Cheng, Xiaohui Yan, Shuiyun Shen, Junliang Zhang
Summary: This review comprehensively explores the influences of key materials degradation in membrane electrode assemblies (MEAs) on oxygen transport resistance in proton exchange membrane fuel cells (PEMFCs). The study finds that carbon corrosion in cathode catalyst layers (CCLs) leads to pore structure destruction and impact on ionomer distribution, catalyst degradation increases the local oxygen transport resistance, degradation of ionomer changes its structure and worsens the local oxygen transport, and loss of carbon and PTFE in gas diffusion layers (GDLs) results in higher hydrophilicity and increased oxygen transport resistance.
Article
Chemistry, Physical
Zijie Mao, Chen Ding, Xuan Liu, Qing Zhang, Xianxian Qin, Hong Li, Fan Yang, Qing Li, Xia-Guang Zhang, Junliang Zhang, Wen-Bin Cai
Summary: This study investigates the use of interstitial B-doping in the Pt lattice to design a durable and active Pt-B/C catalyst, which enhances the catalyst's activity and durability by regulating the electronic structure of surface Pt sites. Experimental results demonstrate that the synthesized Pt-B/C catalyst outperforms commercial Pt/C(com) in terms of activity and durability, showing better performance in PEMFCs.
Article
Chemistry, Multidisciplinary
Liuxuan Luo, Cehuang Fu, Yangge Guo, Xiyang Cai, Xiashuang Luo, Zehao Tan, Rui Xue, Xiaojing Cheng, Shuiyun Shen, Junliang Zhang
Summary: Rationally combining designed supports and metal-based nanomaterials is effective to synergize their respective physicochemical and electrochemical properties for developing highly active and stable/durable electrocatalysts. In this work, sub-5 nm monodispersed nanodots with a special nanostructure are synthesized and anchored onto 3D porous N-doped graphene nanosheets. The resulting electrocatalysts exhibit exceptional activity and stability, outperforming commercial Pd/C and Pt/C. Advanced experimental and theoretical analyses reveal the synthetic mechanism and origins of the enhanced performance, providing a design paradigm for high-performance electrocatalysts.
Article
Engineering, Environmental
Liuxuan Luo, Zehao Tan, Cehuang Fu, Rui Xue, Xiaojing Cheng, Tianzi Bi, Lutian Zhao, Yangge Guo, Xiyang Cai, Jiewei Yin, Shuiyun Shen, Junliang Zhang
Summary: Increasing the accessible active sites and improving the intrinsic activity are effective strategies for enhancing the electrocatalytic activity of nanomaterials. In this study, highly uniform Pd nanotetrahedrons with Pt-doped surfaces are synthesized and supported onto carbon black, showing improved electrocatalytic performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Huiyuan Li, Jiabin You, Xiaojing Cheng, Xiaohui Yan, Shuiyun Shen, Junliang Zhang
Summary: This paper investigates the effects of Co2+ contamination on the structure of ionomer films and the corresponding local oxygen transport behavior in cathode catalyst layers (CCLs). The study finds that Co2+ contamination reduces water content and increases the modulus of the ultrathin ionomer film, while also affecting the aggregation size of the ionomer. Additionally, the contamination increases the local oxygen transport resistance and decreases the peak power density of the fuel cell.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jing Li, Fan Yang, Min Jiang, Xiyang Cai, Qiaodan Hu, Junliang Zhang
Summary: The development of perovskite-type electrocatalysts with high activity, excellent durability, and affordable cost is important for promoting clean energy technologies. In this study, Bi(0.15)Sr(0.85)Co(1-x)FexO(3-delta) (x=0.2, 0.4, 0.6, 0.8, 1) perovskite materials were prepared and their OER electrocatalytic activity and durability were investigated. The results showed that the composition BiSC0.8F0.2 exhibited impressive electrocatalytic performances with low overpotential and excellent long-time durability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Physical
Shiqing Liu, Shu Yuan, Yuwei Liang, Huiyuan Li, Zhiling Xu, Qian Xu, Jiewei Yin, Shuiyun Shen, Xiaohui Yan, Junliang Zhang
Summary: Proton exchange membrane fuel cells (PEMFCs) are important for achieving decarbonized energy demand. However, their commercialization has been hindered by high costs. This paper focuses on reducing the amount of platinum (Pt) in PEMFCs to address the cost issue. Specifically, it summarizes various electrode design methods to optimize the local transport resistance of oxygen in the cathode catalyst layer (CCL). The insights provided in this paper offer recommendations for high-efficiency low-platinum fuel cell fabrication and design.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Electrical & Electronic
Longhai Zhang, Lina Ning, Xueqing Yang, Sheng Zeng, Tian Yuan, Gaopeng Li, Changchun Ke, Junliang Zhang
Summary: The fuel cell hybrid powertrain is a potential power supply system for fuel cell vehicles but faces the issue of excessive fuel consumption. In order to effectively manage fuel consumption, a power and control system for fuel cell city buses is proposed through simulation study and road test verifications. The research results show that the half-power prediction energy management strategy effectively reduces fuel consumption by 7.1% and battery cycle by 6.0% compared to the stepped management strategy of battery SOC.
AUTOMOTIVE INNOVATION
(2023)
Article
Nanoscience & Nanotechnology
Zhiling Xu, Shu Yuan, Lu An, Shuiyun Shen, Qian Xu, Xiaohui Yan, Junliang Zhang
Summary: One approach to improving the proton conductivity of nanoscale ultrathin Nafion films is by adjusting the catalyst-ionomer interaction. In this study, ultrathin films were prepared on SiO2 substrates with negative or positive surface charges. The results showed that the negatively charged substrate resulted in faster film formation and increased proton conductivity, while the positively charged substrate led to slower film formation and decreased proton conductivity. The interaction between surface charges and Nafion molecules affected molecular orientation, surface energy, and phase separation, influencing proton conductivity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Thermodynamics
Shu Yuan, Congfan Zhao, Xiyang Cai, Lu An, Shuiyun Shen, Xiaohui Yan, Junliang Zhang
Summary: This review discusses the evolution and transport processes of gas bubbles, as well as the mechanisms by which bubbles impact PEMWE cell performance. It also summarizes the latest methods to mitigate bubble-induced performance losses. Similarities between PEMWE and AEMWE are explored, and principles of bubble management are presented, along with future research priorities and suggestions.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2023)
Article
Chemistry, Physical
Yang Zhang, Yuanting Peng, Qiqi Wan, Donghao Ye, Ao Wang, Longhai Zhang, Wenxing Jiang, Yingying Liu, Jin Li, Xiaodong Zhuang, Junliang Zhang, Changchun Ke
Summary: A fuel cell based on B10H14 was studied, which achieved a peak power density of 110.82 mW/cm2, comparable to common DMFCs. The new fuel cell exhibited a higher open circuit voltage than DMFCs and other DLFCs, indicating that the Nafion membrane is effective in suppressing fuel crossover. This opens up a new way to utilize the chemical energy of B10H14 and develops a promising fuel cell for high specific energy applications.
MATERIALS TODAY ENERGY
(2023)
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)