Article
Chemistry, Multidisciplinary
Zhipeng Jiang, Yu Deng, Jisheng Mo, Qingan Zhang, Ziqi Zeng, Yongtao Li, Jia Xie
Summary: This study proposes a strategy to enhance the high-voltage stability of medium-concentration ether electrolytes by altering the reaction pathway of ether solvents. By employing a 1 M lithium difluoro(oxalato)borate in dimethoxyethane (LiDFOB/DME) electrolyte, a stable organic-inorganic hybrid interface is formed, leading to improved cycling performance in lithium metal batteries. The optimized ether electrolyte demonstrates outstanding cycling performance in practical conditions.
Article
Nanoscience & Nanotechnology
Antonia Kotronia, Habtom D. Asfaw, Cheuk-Wai Tai, Maria Hahlin, Daniel Brandell, Kristina Edstrom
Summary: Dual-ion batteries (DIBs) operating at voltages beyond 4.7 V exhibit different performances based on the electrolyte used, with higher Coulombic efficiency and specific capacity achieved in HCEs with LiFSI and LiTFSI salts compared to those with LiPF6. XPS analysis reveals that LiFSI and LiTFSI electrolytes result in thinner surface layers on intercalated graphite electrodes compared to LiPF6, indicating a difference in interface formation and decomposition product buildup.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Shumin Zhang, Feipeng Zhao, Shuo Wang, Jianwen Liang, Jian Wang, Changhong Wang, Hao Zhang, Keegan Adair, Weihan Li, Minsi Li, Hui Duan, Yang Zhao, Ruizhi Yu, Ruying Li, Huan Huang, Li Zhang, Shangqian Zhao, Shigang Lu, Tsun-Kong Sham, Yifei Mo, Xueliang Sun
Summary: This study addresses the stability issue of solid-state electrolytes in high-voltage operations by designing a dual-halogen Li-ion conductor, improving both ionic conductivity and stability. The dual-halogen solid electrolyte shows great potential for high-voltage all-solid-state Li-ion batteries and provides a new design strategy for fast Li-ion conductors with high oxidation stability.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Xin Li, Lina Cong, Shunchao Ma, Sainan Shi, Yanan Li, Sijia Li, Silin Chen, Changhui Zheng, Liqun Sun, Yulong Liu, Haiming Xie
Summary: The study introduced a boron, fluorine-donating liquid electrolyte to enhance the performance of solid-state batteries, providing a new interfacial engineering strategy to improve the stability and resistance of solid-liquid electrolyte interfaces.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Erlei Zhang, Huijie Tian, Meng Li, Shiru Le, Bingjiang Li, Lijun Wu, Qixian Zhang, Lishuang Fan
Summary: In this study, 2-fluoro-5-iodopyridine (2-F-5-IPy) was used as an electrolyte additive to protect the negative electrode and convert dead lithium into active lithium. The addition of 2-F-5-IPy resulted in a capacity retention improvement from 36.5% to 89.4% after 300 cycles for Li||LiFePO4 cell, and stable operation for over 800 hours for the symmetrical cell. Therefore, 2-F-5-IPy effectively enhances the performance of lithium metal batteries by acting as an anode protection additive and reactivating dead lithium.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Erlei Zhang, Huijie Tian, Meng Li, Shiru Le, Bingjiang Li, Lijun Wu, Qixian Zhang, Lishuang Fan
Summary: In this study, 2-F-5-IPy was used as an electrolyte additive to improve the performance of lithium metal batteries, resulting in increased capacity retention and extended operating time.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Jiajun Huang, Tong Yan, Mengli Tao, Weifeng Zhang, Wei Li, Guangli Zheng, Li Du, Zhiming Cui, Xiujun Wang, Shijun Liao, Huiyu Song
Summary: A localized high-concentration electrolyte (LHCE) was designed in this study, which used carbonate as the base solvent, hexafluoroisopropyl methyl ether (HFME) as the diluent, and vinylene carbonate (VC) as the filmogen to achieve a stable solid-solid cyclic process in lithium-sulfur batteries. The use of LHCE significantly improved the cyclic performance and stability of the batteries. Overall, this work provides a universal strategy to enhance the performance of Li-S batteries. Evaluation: 9 points.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Qing Wang, Wuxin Liu, Shasha Wang, Mingxiu Tan, Shaohua Luo, Yahui Zhang, Shengxue Yan, Xin Liu
Summary: A surface modification strategy is developed to improve the cycling stability of graphite cathodes in dual-ion batteries by forming an artificial cathode electrolyte interface (CEI) layer. The modified graphite cathode with the artificial CEI layer exhibits significantly better cycling stability and maintains a thin and uniform morphology after 100 cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Simin Chai, Yue Zhong, Yijiang Wang, Qiong He, Alireza Azizi, Leyuan Chen, Xueting Ren, Weifeng Wei, Shuquan Liang, Zhi Chang, Anqiang Pan
Summary: This study investigates the modulation effects of supramolecular LiPAAOB salt and 3D PALC polymer host on enhancing intermolecular interactions and promoting the ordered transport of Li+ ions in quasi-solid-state polymer electrolyte. The synthesized LiPAAOB-assisted GPEs show improved electrochemical stable window and ionic conductivity, effectively inhibiting dendrite growth and electrode corrosion, and demonstrating potential application in constructing flexible high-energy-density batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Yifei Wang, Wending Pan, Shijing Luo, Xiaolong Zhao, Holly Y. H. Kwok, Xinhai Xu, Dennis Y. C. Leung
Summary: An innovative dual-gel electrolyte design is proposed for solid-state metal-air batteries, which achieves higher voltage output and longer discharge lifetime. The higher ionic diffusion resistance of gel electrolytes reduces the mixing of different electrolytes, ensuring a pseudo-stable battery system. The effective ion diffusivity in gel plays a vital role in the battery stability. A flexible version of the dual-gel metal-air battery is demonstrated using paper-based gel electrolytes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Xue Ye, Jianneng Liang, Jiangtao Hu, Dazhuan Wu, Yongliang Li, Xiaoping Ouyang, Qianling Zhang, Xiangzhong Ren, Jianhong Liu
Summary: To achieve safe and high energy density solid-state batteries (SSBs), minimizing the weight of solid-state electrolyte (SSE) and using a high voltage and high specific capacity cathode are crucial. An ultra-thin blending polymer electrolyte (BPE) is designed by blending PEO, PMMA, and PVDF-HFP, and complexing with SN, FEC, and LiTFSI plasticizers. The BPE shows superior performance in terms of capacity retention, stability, and Coulombic efficiency, indicating its promising application in high energy density quasi-solid-state batteries (QSSBs).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Multidisciplinary Sciences
Junru Wu, Xianshu Wang, Qi Liu, Shuwei Wang, Dong Zhou, Feiyu Kang, Devaraj Shanmukaraj, Michel Armand, Teofilo Rojo, Baohua Li, Guoxiu Wang
Summary: This study reports a new type of gel polymer electrolyte combined with a hybrid cathode of Li-rich oxide active material and graphite to produce a high-energy Li metal battery, where additional capacity is generated through the anion shuttling mechanism of the electrolyte. The gel polymer electrolyte exhibits adequate ionic conductivity and oxidation stability, and is compatible and safe with Li metal.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Arefeh Kazzazi, Dominic Bresser, Matthias Kuenzel, Maral Hekmatfar, Johannes Schnaidt, Zenonas Jusys, Thomas Diemant, R. Juergen Behm, Mark Copley, Krzystof Maranski, James Cookson, Iratxe de Meatza, Peter Axmann, Margret Wohlfahrt-Mehrens, Stefano Passerini
Summary: The research addresses the insufficient stability of the electrolyte towards oxidation in high-voltage lithium-ion cathode materials, and introduces a new combination of electrolyte additives to improve battery performance. The synergistic effect of TTSPi and TFEC additives significantly enhances cycling stability, capacity, and coulombic efficiency in lithium-ion cells with a voltage higher than 4.5 V, which can be further improved with the addition of lithium bis(oxalato)borate.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Yifeng Cheng, Menghao Li, Xuming Yang, Xinzhen Lu, Duojie Wu, Qing Zhang, Yuanmin Zhu, Meng Gu
Summary: Researchers developed a carbon-fiber-supported liquid Na-K alloy anode to enhance the contact between the anode and electrolyte in rechargeable solid-state Na metal batteries (SSNMB). By using cryogenic transmission electron microscopy (cryo-TEM), they characterized the evolution of the solid-electrolyte interphase (SEI) and identified both crystalline and amorphous phases that facilitate ion transport and prevent side reactions. The enhanced contact between Na-K alloy and solid-state electrolyte enables long cycle stability and high critical current density.
Article
Chemistry, Multidisciplinary
Yao Wang, Yanjun Zhang, Shuo Wang, Shuyu Dong, Chaoqun Dang, Weichen Hu, Denis Y. W. Yu
Summary: The addition of lithium difluoro(oxalate) borate salt into the electrolyte forms a robust cathode-electrolyte interface, enhancing the performance of graphite||Li batteries. The full graphite battery demonstrates high reversible capacities and long cycling life, showing high power and energy density.
ADVANCED FUNCTIONAL MATERIALS
(2021)
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)