Article
Chemistry, Physical
Nanrui Li, Tianqi Jia, Yanru Liu, Yunfei Ouyang, Yao Lv, Geng Zhong, Yufeng Wang, Bo Sun, Sirong Lu, Shifei Huang, Feiyu Kang, Yidan Cao
Summary: Researchers developed a Cu-based current collector with a super-three-dimensional lithiophilic modification layer for anode-free lithium metal batteries. The modification layer, consisting of highly dispersed CuOx sites in the O-containing defective carbon, effectively reduces nucleation overpotential and promotes uniform dendrite-free lithium deposition. The current collector exhibits a reduced nucleation overpotential of 14.2 mV and prolonged cycling life over 400 cycles with average CE >98.5%. The work provides a feasible way to fabricate anode-free lithium metal batteries and enhances the understanding of solid electrolyte interface evolution and Li plating/stripping regulation strategy.
MATERIALS TODAY ENERGY
(2023)
Review
Materials Science, Multidisciplinary
Bingxin Zhou, Arman Bonakdarpour, Ivan Stosevski, Baizeng Fang, David P. Wilkinson
Summary: The energy density of lithium metal batteries could be much higher than that of current graphite anode-based LIBs. However, dendritic lithium growth and unstable solid-electrolyte interface are challenges. Modifications of the commonly used copper current collector have been investigated to improve battery performance.
PROGRESS IN MATERIALS SCIENCE
(2022)
Review
Materials Science, Multidisciplinary
Simeng Zhang, Gaojing Yang, Xiaoyun Li, Yejing Li, Zhaoxiang Wang, Liquan Chen
Summary: This article summarizes recent efforts to inhibit the growth of lithium dendrites, decrease detrimental side reactions, and extend the lifespan of lithium metal anodes (LMAs) by optimizing the electrolyte structure and designing appropriate current collectors. The authors identified the unstable solid electrolyte interface (SEI) film as the cause of potential dropping in carbonate electrolytes, and developed new electrolytes to stabilize the SEI film. Controlled lithium deposition was achieved by designing the structure and material of the current collectors. The limitations of current strategies and prospects for future research are also discussed.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Nanrui Li, Tianqi Jia, Yanru Liu, Shifei Huang, Feiyu Kang, Yidan Cao
Summary: This article summarizes the different methods and applications of current collector engineering for lithium metal anodes, emphasizing the important breakthroughs in solving practical problems and increasing energy density.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Zhe Gong, Pengfei Wang, Ke Ye, Kai Zhu, Jun Yan, Guiling Wang, Guohua Chen, Dianxue Cao
Summary: In this study, MXene-modified conductive framework (MCF) was designed and fabricated as a universal current collector for non-aqueous Li metal batteries and aqueous Zn metal batteries to suppress the dendric growth of Li and Zn. The experimental results show that MCF@Li and MCF@Zn make the plating/stripping process of Li/Zn easier, and improve the cycling performance and rate performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Wenxu Song, Shiqiang Cui, Jiangjiang Zhang, Shangze Fan, Lanli Chen, Han-Ming Zhang, Yatong Zhang, Xiaomin Meng
Summary: To address the obstacles of lithium dendrite growth and volume change, as well as poor mechanical properties of SEI, an ultralight CF-Mg3N2 was fabricated as a collector. The CF-Mg3N2 composite enabled homogeneous lithium deposition/stripping with low nucleation overpotential, high Coulombic efficiency, and long cyclability. The Mg3N2-CF@Li//LiFePO4 full cells also exhibited better rate capability and cycling stability, showing practicality. This work's design concept has a far-reaching influence on developing a stable Li metal anode.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Zibo Zhang, Xufeng Zhou, Zhaoping Liu
Summary: This study presents a method to induce uniform nucleation of lithium on copper substrates using high current density, which improves the density and uniformity of lithium electrodeposition. The as-obtained Li seeds with small and uniform size cover the copper surface effectively, and the LiF-rich solid electrolyte interface inhibits dendritic lithium formation, leading to significant improvement in cycling stability of the battery.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Manman Zhao, Xianli Huang, Dongmei Zhuang, Lei Sheng, Xin Xie, Min Cao, Junjie Pan, Haiyun Fan, Jianping He
Summary: By preparing a composite current collector with a porous nanospheres structure (Cu3N-NS/Cu), this study improves the cyclic reversibility and lithium deposition morphology of lithium metal batteries. The composite collector has a higher specific surface area, which benefits the diffusion of lithium ions and reduces the local current density of the electrode.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Yunbo Zhang, Qiaowei Lin, Junwei Han, Zhiyuan Han, Tong Li, Feiyu Kang, Quan-Hong Yang, Wei Lu
Summary: A lightweight 3D carbon current collector with a lithiophilic surface was developed through the direct carbonization of low-cost bacterial cellulose biomass, providing uniform nucleation sites and enabling uniform and dendrite-free Li deposition. The collector exhibited stable performance for 150 cycles under high current density and capacity, and promising cycling performance when paired with LiNi0.8Co0.15Al0.05 cathodes. The use of low-cost raw materials and a simple preparation method suggests significant potential for future applications.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Nanoscience & Nanotechnology
Mouping Fan, Zexi Huang, Youchen Chen, Yuanmao Chen, Wenli Wu, Xi Ke, Zhicong Shi
Summary: This study introduces a novel lithiophilic nanosheet array collector, which can effectively solve the issue of lithium dendrite growth in lithium metal batteries, and demonstrates excellent cycling lifespan and coulombic efficiency.
Article
Nanoscience & Nanotechnology
Weizhai Bao, Ronghao Wang, Kaiwen Sun, Chengfei Qian, Yuhao Zhang, Jingfa Li
Summary: We have successfully addressed the issues of uneven interface kinetics and dendrite growth in Li metal anode by employing an interface crystallographic optimization strategy. Our design of a customized magnetron sputtering layer of preferred orientation copper coating on the current collector surface has shown promising results in achieving stable interface kinetics and a dendrite-free Li anode.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Woochul Shin, Arumugam Manthiram
Summary: In this study, micro-sized Ag particles were precipitated on the Cu current collector through Ag/Cu ion exchange, enhancing the reversibility of lithium during alloying process. The modification lowered the nucleation potential of lithium and increased the average Coulombic efficiency, thereby reducing the capacity fade of Cu parallel to LiFePO4.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Chaobo Zhang, Zefang Li, Yi Sun, Jie Gao, Yanan Zhou, Zhanbin Qin, Ran Tian, Yun Gao
Summary: With the rapid development of technology, improving the utilization and conversion rate of sustainable energy has become crucial for ecological and sustainable development. However, the limited capacity and poor electrochemical property of current electrode materials hinder this progress. In this study, a lithium metal composite anode was developed through an excessive alloying process, effectively solving the issues of dendrite formation and poor electrochemical stability. The results showed that the lithium metal deposition on silver and silicon electrodes significantly enhanced coulombic efficiency and electrochemical stability, with the silver-lithium composite electrodes exhibiting twice the cycling capability of bare Cu electrodes. This new anode structure and excessive alloying process provide a promising approach for extending the application of commercial anodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Daniele Callegari, Lorenzo Airoldi, Riccardo Brucculeri, Umberto Anselmi Tamburini, Eliana Quartarone
Summary: This study reports a simple and scalable process using additive manufacturing technology to produce copper current collectors with different patterns to address the challenges of lithium metal anodes. The three-dimensional network of the current collectors stabilizes the electrodeposition of lithium and prevents dendrite growth, leading to stable battery performance and high coulombic efficiency.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Physical
Hee Jae Kim, Nurzhan Umirov, Jae-Sang Park, Jae-Hong Lim, Jiefang Zhu, Sung-Soo Kim, Seung-Taek Myung
Summary: In this study, the addition of phosphorous pentoxide (P2O5) to carbonate-based electrolytes was found to effectively suppress the dendritic growth on the surface of a lithium-metal anode, leading to improved lifespan and coulombic efficiency. The reduction mechanism of the P2O5-induced solid-electrolyte interphase (SEI) formation on Li metal was also elucidated, providing insights into the inhibitory effect on dendritic growth.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Xiaoyang Wang, Yu He, Xiaopeng Han, Jun Zhao, Lanlan Li, Jinfeng Zhang, Cheng Zhong, Yida Deng, Wenbin Hu
Summary: The research team developed a novel step-wise approach to construct the Co9S8@Co3O4/NF hybrid on nickel foam, which shows excellent electrocatalytic performance and is a potential material for water electrolysis.
Article
Chemistry, Multidisciplinary
Binbin Fan, Haozhi Wang, Hong Zhang, Yue Song, Xuerong Zheng, Changjiu Li, Yeqiang Tan, Xiaopeng Han, Yida Deng, Wenbin Hu
Summary: This study reports a boron-doping strategy to induce phase transfer from hexagonal Mo2C to cubic Mo2C, which improves the catalytic efficiency of nitrogen reduction reaction (NRR) and inhibits the competition hydrogen evolution reaction. The boron-doped cubic Mo2C increases the exposure of active sites, regulates the electronic structure, and reduces the energy barrier, leading to a high ammonia yield and faradic efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xiaorui Liu, Bin Liu, Jia Ding, Yida Deng, Xiaopeng Han, Cheng Zhong, Wenbin Hu
Summary: The development of new catalysts is crucial for modern industrial chemistry, with high-throughput (HT) technologies playing a key role in accelerating the discovery and optimization process. Building a catalysts library involves the integration of virtual lab construction and experimental data lab, with a focus on experimental design, reactant preparation, reactor construction, and catalyst characterization. The correlation between virtual lab and experimental data is highlighted to inspire further explorations in this field.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Yue Song, Haozhi Wang, Zhenxin Song, Xuerong Zheng, Binbin Fan, Xiaopeng Han, Yida Deng, Wenbin Hu
Summary: This study presents a Ni-doped Mo2C catalyst anchored on carbon matrix for efficient nitrogen reduction reaction (NRR). The catalyst was designed to regulate electronic structure and catalytic properties, leading to high catalytic activity and selectivity. The heteroatom doping and porous structure design optimize the electronic configuration and N-2 adsorption, resulting in lowered energy barrier and improved catalytic performance. As a result, a high NH3 yield rate and faradic efficiency were achieved, demonstrating the importance of heteroatom doping in NRR.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Jun Zhao, Yu He, Jiajun Wang, Jinfeng Zhang, Liuzhe Qiu, Yanan Chen, Cheng Zhong, Xiaopeng Han, Yida Deng, Wenbin Hu
Summary: The study demonstrates the high performance of atomically-thin nickel-doped spinel cobalt oxide as bifunctional catalyst for oxygen evolution and oxygen reduction reactions. Nickel doping plays a crucial role in creating active sites and promoting electron transfer, enhancing the activity of both OER and ORR. The findings expand the strategies for preparing bifunctional oxygen catalysts.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xinyi Wei, Jinfeng Zhang, Chang Liu, Xiaopeng Han, Yida Deng, Wenbin Hu
Summary: The construction of binary metal catalysts, such as Ir-SAs/Pd, is an effective strategy to enhance the activity and CO tolerance for methanol oxidation. The enhanced performance is attributed to the electron redistribution between Pd and Ir atoms, resulting in improved electron dominance and negative shift of the d-band center for Pd. This study provides new insights for the design of high-performance binary metal catalysts for methanol oxidation in alkaline media.
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
(2022)
Article
Chemistry, Physical
Xuerong Zheng, Yanhui Cao, Zhong Wu, Wenlong Ding, Tao Xue, Jiajun Wang, Zelin Chen, Xiaopeng Han, Yida Deng, Wenbin Hu
Summary: This study reveals the importance of chalcogens in transition metal chalcogenides for the oxygen evolution reaction (OER) and proposes a sulfurizing method to synthesize sulfur-doped NiCo-(oxy)hydroxysulfides (NCOSH) nanosheets as efficient electrocatalysts. The sulfur dopants enhance the oxidation activity and stability of high-valent transition metals, resulting in superior bifunctional activities and durability for oxygen electrocatalytic reactions. The NCOSH nanosheets also exhibit excellent performance as air cathodes in rechargeable solid state Zn-air batteries.
ADVANCED ENERGY MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Xinyu Li, Zhenbo Qin, Yida Deng, Zhong Wu, Wenbin Hu
Summary: Ion exchange membranes play important roles in energy generation and storage field, but high cost is a major barrier to their large-scale application. Membrane-less technology is a promising approach to overcome this problem. This review introduces a type of membrane-less battery, discusses its performance, problems, and proposes solutions. The challenges and prospects of this technology are also highlighted.
Article
Chemistry, Physical
Fei Liu, Xixi Ren, Jun Zhao, Han Wu, Jiajun Wang, Xiaopeng Han, Yida Deng, Wenbin Hu
Summary: Heteroatom doping is a strategy to optimize the activity and stability of electrocatalysts for the CO2RR. In this study, In doping was proposed to reinforce the S atoms in SnS, inhibiting sulfur dissolution and optimizing the reaction pathway.
Article
Chemistry, Physical
Qi Lu, Han Wu, Xuerong Zheng, Yanhui Cao, Jihong Li, Yang Wang, Haozhi Wang, Chunyi Zhi, Yida Deng, Xiaopeng Han, Wenbin Hu
Summary: Constructing novel heterostructures is an effective approach to enhance the oxygen electrocatalytic properties of catalysts. In this work, a new class of Janus homologous heterostructures composed of transition metal alloys and their corresponding sulfides (TM/TMS) were synthesized through an ultrafast high-temperature shock strategy. The controlled composition and stable structure of TM/TMS heterostructures lead to improved oxygen catalytic performance. The zinc-air battery (ZAB) using FeCo/(FeCo)S nanocomposites as air cathodes demonstrates impressive durability and power density.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yang Wang, Xiaopeng Li, Zhong Huang, Haozhi Wang, Zelin Chen, Jinfeng Zhang, Xuerong Zheng, Yida Deng, Wenbin Hu
Summary: It is essential to develop inexpensive and efficient transition metal based electrocatalysts for neutral water splitting. This work successfully synthesized amorphous Mo-doped NiS0.5Se0.5 nanosheets@crystalline NiS0.5Se0.5 nanorods through a simple one-step strategy. The Am-Mo-NiS0.5Se0.5 catalyst showed low overpotentials for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), and exhibited excellent stability for at least 300 hours. Theoretical calculations revealed that the defect-rich amorphous structure of Am-Mo-NiS0.5Se0.5 enhanced H2O binding energy and optimized the energy barriers for H adsorption/desorption and OER determining step.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Han Wu, Qi Lu, Yajing Li, Menghan Zhao, Jiajun Wang, Yingbo Li, Jinfeng Zhang, Xuerong Zheng, Xiaopeng Han, Naiqin Zhao, Jiajun Li, Yanhui Liu, Yida Deng, Wenbin Hu
Summary: High-entropy compounds with multiple components have great potential and have attracted attention in various fields. However, it is difficult to achieve stability and synthesis of high-entropy compounds due to their high complexity. In this study, a design strategy was proposed to stabilize the compound structures by using one metal site to accommodate different elements. Several typical metal compounds with bimetallic sites have been synthesized into high-entropy compounds, including perovskite hydroxides, layered double hydroxide, spinel sulfide, perovskite fluoride, and spinel oxides. High-entropy perovskite hydroxides (HEPHs) have been successfully synthesized with a wide range of components, even a septenary component, and exhibit great oxygen evolution activity. This work provides a design platform for the development of high-entropy compound systems with potential for electrocatalysts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Jun Zhao, Jiajun Wang, Xuerong Zheng, Haozhi Wang, Jinfeng Zhang, Jia Ding, Xiaopeng Han, Yida Deng, Wenbin Hu
Summary: The state-of-the-art active HER catalysts in acid electrolytes lose catalytic performance in alkaline electrolytes due to the water dissociation step. Designing composite materials is an effective strategy to accelerate alkaline water electrolysis. In this study, alpha/beta-Co(OH)(2)@Ru was prepared to enable efficient HER performance in alkaline solution, offering low overpotential and stable operation. Density functional theory calculations demonstrated that active Ru-O-Co bonds in alpha-Co(OH)(2)@Ru optimize the energy barriers, facilitating the Volmer reaction step.
Article
Chemistry, Multidisciplinary
Binbin Fan, Haozhi Wang, Xiaopeng Han, Yida Deng, Wenbin Hu
Summary: In this study, activated NiCo LDH was synthesized to immobilize Pt, Ir, and Rh single atoms for hydrogen evolution reaction. The Pt/A-NiCo LDH electrocatalyst exhibited the highest catalytic ability, achieving a low overpotential and significantly improving the catalytic activity of the hydrogen evolution reaction.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Shengxiang Qu, Jie Liu, Xiaopeng Han, Yida Deng, Cheng Zhong, Wenbin Hu
Summary: In this study, a flexible and stretchable metal-coated textile was developed using a dynamic stretching-electroplating method. The textile exhibited high stretchability and stable conductivity, thanks to its unique woven and wavy structure. The stretching of the metal-coated textile was mainly attributed to the deformation of the microfiber network at the bottom position of the wave structure. A composite hydrogel with excellent ionic conductivity, mechanical properties, and water retention properties was used as the electrolyte. A flexible and stretchable sandwich-structure zinc-air battery assembled with the above electrodes and electrolyte demonstrated stable operation even under rapid stretching/releasing cycle deformation.
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)
