Article
Chemistry, Multidisciplinary
Hui Wan, Zhixiao Liu, Guangdong Liu, Shuaiyu Yi, Pengfei Yan, Huiqiu Deng, Wangyu Hu, Fei Gao
Summary: Electrochemical cycling induces transition-metal ion migration and oxygen vacancy formation in layered transition-metal oxides, causing performance decay. This study used ab initio calculations and atomic level imaging to explore the migration mechanisms in LiNi1/3Mn1/3Co1/3O2, revealing favorable pathways for transition-metal migration and the critical role of nickel in stabilizing layered cathodes. Insights from this study may lead to tailored layered cathodes with high structural stability and superior performance.
Article
Chemistry, Physical
Cheng-Hung Lin, Zhengyu Ju, Xiaoyin Zheng, Xiao Zhang, Nicole Zmich, Xiaoyang Liu, Kenneth J. Takeuchi, Amy C. Marschilok, Esther S. Takeuchi, Mingyuan Ge, Guihua Yu, Yu-chen Karen Chen-Wiegart
Summary: Modifying electrode materials and conductive fillers can enhance the performance and stability of electrodes. Three-dimensional quantification analysis of electrodes can provide a better understanding of the dimensionality effects of electrode materials.
Article
Chemistry, Physical
Yunyun Zhang, Jian Li, Weiguo Huang, Zhexi Chi, Jinyu Bo, Lihua Wang, Zhiyong Wang
Summary: In the recycling process of spent lithium-ion batteries, the presence of Al impurities affects the physical and electrochemical properties of the recovered cathode active materials. This study investigates the effects of different forms (Al and Al3 +) and concentrations of Al impurities on the recovery of LiNi1/3Co1/3Mn1/3O2 cathode material. The results show that Al3 + impurities promote particle nucleation and growth, improving electrochemical performance, while existing Al impurities lead to additional side reactions and negatively impact electrochemical performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Yusuke Abe, Kensuke Sawa, Masahiro Tomioka, Ryoei Watanabe, Tatsuya Yodose, Seiji Kumagai
Summary: We present a methodology for extracting cathode active materials from waste lithium-ion batteries (LIBs) in a time-effective, automatic, and safe manner. The recovered materials can be used for the fabrication of new LIBs. The feasibility of the method was tested for the recovery of ternary Li transition metal oxide (LTMO) cathode materials from waste automotive LIBs. The recovered materials showed promising electrochemical performance, with high capacity retention after multiple charge-discharge cycles.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Jing Han, Jun Yang, Zhixin Xu, Hongping Li
Summary: The combination of LiMnPO4 and LiNCMO composite electrodes exhibits improved specific capacity and rate capability, attributed to the high electronic conductivity and Li+ diffusion of the composite materials.
Article
Physics, Multidisciplinary
Yumei Gao, Kaixiang Shen, Ping Liu, Liming Liu, Feng Chi, Xianhua Hou, Wenxin Yang
Summary: The article calculates the conductivity and potential energy of Na-doped LiNi1/3Co1/3Mn1/3O2 using density functional theory, finding that the material exhibits improved conductivity with a sodium doping level of x = 0.05 mol. Sodium doping is shown to reduce potential well and enhance lithium ion removal rate, in agreement with experimental results.
FRONTIERS IN PHYSICS
(2021)
Article
Energy & Fuels
Wei Zhou, Zhien Liu, Wan Chen, Xiong Zhang, Xianzhong Sun, Maji Luo, Xiaohu Zhang, Chen Li, Yabin An, Shuang Song, Kai Wang, Yanwei Ma
Summary: This research systematically investigates the thermal characteristics of LIBC cells during discharge at different rates. The discharge capacity decreases with increasing discharge rate, and the highest temperature occurs at 80C discharge rate, reaching 51.74 degrees C. The proportions of irreversible heat generation, reversible heat generation, and other heat generation in total heat generation are quantified.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Electrochemistry
Pei-yao Li, Ying-de Huang, Lin-bo Tang, Han-xin Wei, Hao Fu, Zhen-jiang He, Jun-chao Zheng
Summary: A nanoscale LiNi1/3Co1/3Mn1/3O2(NCM111) material was successfully prepared via a hydrothermal lithiation process. The dissolution-recrystallization mechanism enabled the formation of nanoparticles, which shortened the diffusion channel of lithium ions and significantly improved the performance of the NCM111 material. Furthermore, W6+ doping improved the conductivity of the material and stabilized the layered structure, effectively inhibiting cation mixing.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Applied
Chen Liang, Lihua Jiang, Shuliang Ye, Zhaoyu Wang, Zesen Wei, Qingsong Wang, Jinhua Sun
Summary: This study investigates the thermal behaviors of lithium ion batteries using multiple mode calorimetry and C80 micro-calorimeter. The impact of cathode and anode on heat generation is discussed, as well as the contributions of irreversible and reversible heat to total heat generation. The breakdown of solid electrolyte interface and the oxidation of electrolyte are identified as crucial factors affecting battery safety and thermal stability.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Jian-Hua Wang, Yu Wang, Yu-Zhong Guo, Chang-Wei Liu, Lu-Lu Dan
Summary: Aluminum phosphate coating affects the surface structure and electrochemical properties of NCM cathode material, blocking Li+ insertion-extraction process and increasing surface film resistance, while aiding in stabilizing the solid electrolyte interface film and cell resistance.
Article
Chemistry, Analytical
Muharrem Kunduraci, Selda Kilic Cetin, Ugur Caglayan, Rasiha Nefise Mutlu, Dogan Kaya, Ahmet Ekicibil
Summary: The electrochemical performance of an aqueous lithium-ion battery with LiV3O8 anode, 'water-in-salt' 20 M LiTFSI electrolyte, and LiNi1/3Co1/3Mn1/3O2 cathode was investigated. The battery exhibited high lithiation capacity, extended cycle life, and stable discharge potential.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Lina Yv, Jing Wang, Xuetan Li, Lijing Dai, Zhongcai Shao
Summary: The research shows that doping Ti can significantly affect the structure, morphology, and electrochemical properties of LiNi1/3Co1/3Mn1/3O2 material. The material with Ti4+ doping has smaller particle size, regular shape, and high crystallinity, and it helps improve the cycle and rate performance of the material.
Article
Chemistry, Physical
Yu -Long Xie, Li -Fang Guo
Summary: In this study, LiNi1/3Co1/3Mn1/3O2/Li2FeSiO4/C composite materials were successfully synthesized using the sol-gel method. The addition of carbon derived from the carbonization of citric acid improved the electronic conduction and enhanced the electrochemical performance. The LFS/C layer played a crucial role in improving electron and ion transfer and protecting against electrolyte attack.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Yijun Song, Meiri Wang, Jing Li, Hongtao Cui, Hongjun Su, Yuanyuan Liu
Summary: This study successfully synthesized LiNi1/3Co1/3Mn1/3O2 material with superior performance using a high shear mixer-assisted coprecipitation method, offering high discharge capacity and excellent cycling stability, with potential for application in large-scale production.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Sisi Zhou, Xianggong Zhang, Zhihao Zhang, Songting Liu, Rui Wang
Summary: LiNi1/3Co1/3Mn1/3O2 is a widely used commercial cathode material, but its energy density needs improvement. Coating a LiF layer on the surface of LiNi1/3Co1/3Mn1/3O2 can protect the material, improve interfacial stability, and enhance cyclic performance. The LiF-coated NCM exhibits higher capacity retention rates than the bare sample after 100 cycles. This study suggests that LiF surface layer is a promising method to enhance the electrochemical performance of NCM cathode materials.
Article
Chemistry, Multidisciplinary
Zefang Yang, Qi Zhang, Wenbin Li, Chunlin Xie, Tingqing Wu, Chao Hu, Yougen Tang, Haiyan Wang
Summary: This study presents the design of a semi-solid zinc slurry anode consisting of zinc powder and zincophilic tin additive, which addresses some issues of zinc metal anodes and has the potential to extend the lifespan of the battery in practical applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Chunlin Xie, Shengfang Liu, Zefang Yang, Huimin Ji, Shuhan Zhou, Hao Wu, Chao Hu, Yougen Tang, Xiaobo Ji, Qi Zhang, Haiyan Wang
Summary: Developing a stable and dendrite-free zinc anode is crucial for the commercialization of zinc metal batteries. However, the understanding of zinc dendrite formation mechanism is still insufficient. This study reveals that interfacial heterogeneous deposition induced by lattice defects and epitaxial growth limited by residual stress are intrinsic causes for zinc dendrite formation. An annealing reconstruction strategy is proposed to eliminate lattice defects and stresses, achieving dense epitaxial electrodeposition of zinc anode. The resulting annealed zinc anodes exhibit dendrite-free morphology and improved electrochemical cycling stability. This work provides a new mechanism for future research on zinc anode modification by highlighting the importance of lattice defects and residual stresses.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Chunlin Xie, Huimin Ji, Qi Zhang, Zefang Yang, Chao Hu, Xiaobo Ji, Yougen Tang, Haiyan Wang
Summary: To address the issues of poor cycle stability and low zinc utilization in aqueous zinc-ion batteries, attention has turned to zinc-plated anodes on host materials with high zincophilicity and stability. Through experimental observation and theoretical calculation, it is confirmed that Cu (2 2 0) has high zinc deposition activity. Cu (2 2 0) substrates with highly preferred orientation are prepared using an industrial electrolysis strategy. These substrates consistently modulate dense zinc growth, resulting in high zinc plating/stripping reversibility and improved capacity retention in Zn//MnO2 batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jiaming Zhang, Yaping Zeng, Qiuping Li, Zheng Tang, Dan Sun, Dan Huang, Le Zhao, Yougen Tang, Haiyan Wang
Summary: A polymer-in-salt composite electrolyte with ultrahigh ionic conductivity and excellent electrochemical stability has been designed and studied for solid-state batteries. The electrolyte system combines a polymer matrix with high mechanical property, a lithium salt with low dissociation energy, and a filler for enhanced stability. The resulting composite electrolyte exhibits high ionic conductivity and good performance in battery tests.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chunlin Xie, Shengfang Liu, Wenxu Zhang, Huimin Ji, Shengqi Chu, Qi Zhang, Yougen Tang, Haiyan Wang
Summary: This article reports a unique design strategy for rechargeable zinc metal batteries using a gamma-valerolactone-based electrolyte and a nanocarbon-coated aluminum substrate, which solves the issues of uncontrollable dendrite growth, low Coulombic efficiency, and poor temperature tolerance. The optimized zinc metal capacitors can operate stably under various temperature conditions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Chaonan Lv, Yixin Li, Yuanxin Zhu, Yuxin Zhang, Jialin Kuang, Dan Huang, Yougen Tang, Haiyan Wang
Summary: HER-suppressing and precipitation-free molecular crowding electrolytes were developed using sodium polyacrylate (PANa) as the crowding agent. The fabricated aluminum-air battery with this electrolyte exhibited outstanding specific capacity, providing new insights for the design of high capacity and precipitation-free aluminum-air batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yihu Li, Hao Wang, Tingqing Wu, Chunlin Xie, Zefang Yang, Qi Zhang, Dan Sun, Yougen Tang, Liang Fu, Haiyan Wang
Summary: This study proposes a strategy to tune the Zn stripping/plating behavior by engineering the interfacial double layer using an extremely low concentration of sulfolane. It is found that sulfolane can mainly occupy the inner Helmholtz layer, regulate the deposition of Zn2+, and promote uniform zinc deposition by weakening the electric field intensity. Additionally, the corrosion byproducts can be inhibited, leading to optimized battery performance.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Chunlin Xie, Shengfang Liu, Hao Wu, Qi Zhang, Chao Hu, Zefang Yang, Huanhuan Li, Yougen Tang, Haiyan Wang
Summary: Aqueous zinc metal batteries require electrolytes with wide temperature range, no dendrite growth, and corrosion resistance. This research introduces c-valerolactone as a co-solvent to improve the temperature tolerance and stability of the electrolyte, as well as achieve dendrite-free zinc deposition. The optimized electrolyte shows excellent performance in terms of cycle life and temperature range, making it a promising candidate for practical applications.
Article
Chemistry, Physical
Jiaming Zhang, Qiuping Li, Yaping Zeng, Zheng Tang, Dan Sun, Dan Huang, Yougen Tang, Haiyan Wang
Summary: The commercialization of high-voltage lithium metal batteries has been hindered by the lack of advanced electrolytes. This study proposes a tetrahydropyran-based weakly solvating electrolyte that promotes the formation of stable solid electrolyte interphase layers and inhibits metal ion dissolution and corrosion. The optimized interfacial behaviors enable high-voltage stability and stable cycling performance at high cutoff voltages.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Chaonan Lv, Yuanxin Zhu, Yixin Li, Yuxin Zhang, Jialin Kuang, Yougen Tang, Huanhuan Li, Haiyan Wang
Summary: This study presents a strategy of using a hydrogen-bonds reconstructing electrolyte with glycerol molecule to enhance the performance of aluminum-air batteries. The glycerol-based electrolyte suppresses the self-corrosion of aluminum anode and reduces the freezing point of electrolyte, resulting in a flow aluminum-air full battery with high specific capacity and low operating temperature. This finding provides a synthetic design strategy to mitigate metal corrosion and expand the temperature adaptation range of aqueous batteries.
ENERGY STORAGE MATERIALS
(2023)
Review
Electrochemistry
Zheng Tang, Siyu Zhou, Yuancheng Huang, Hong Wang, Rui Zhang, Qi Wang, Dan Sun, Yougen Tang, Haiyan Wang
Summary: Carbonaceous materials are promising candidates for lithium (sodium)-ion batteries due to their wide availability, renewable nature, and low cost. However, the low initial Coulombic efficiency (ICE) of high-capacity carbonaceous materials has hindered their practical applications. This review provides a comprehensive analysis of the structural differences and ion storage mechanisms of various carbonaceous materials, identifies the factors contributing to low ICE, and summarizes the strategies to overcome these challenges. The insights and perspectives discussed in this review will greatly contribute to the commercialization of carbonaceous anodes for high-energy Li/Na-ion batteries.
ELECTROCHEMICAL ENERGY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Zefang Yang, Chao Hu, Qi Zhang, Tingqing Wu, Chunlin Xie, Hao Wang, Yougen Tang, Xiaobo Ji, Haiyan Wang
Summary: Aqueous zinc-ion batteries are safe but hindered by dendrite growth and corrosion on zinc anodes. Strategies for zinc anode modification have focused on lithium metal anodes without considering zinc anode mechanisms. Our proposed bulk-phase reconstruction strategy introduces zincophilic sites both on the surface and inside commercial zinc foils to improve resistance to dendrite growth and side reactions. This strategy offers a promising direction for developing dendrite-free metal anodes for sustainable rechargeable batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Chaonan Lv, Yixin Li, Yuanxin Zhu, Yuxin Zhang, Jialin Kuang, Qing Zhao, Yougen Tang, Haiyan Wang
Summary: A clay-based quasi-solid-state electrolyte is proposed for the first time to enhance the lifespan and safety of aqueous aluminum-air batteries. The clay with uniform pore channels facilitates aluminum ions uniform stripping and reduces the activity of free H2O molecules, thus suppressing the self-corrosion of aluminum anode. The fabricated aluminum-air battery achieves high energy density, liquid-like operating voltage, and outstanding specific capacity, surpassing previous aluminum-air batteries.
Article
Chemistry, Multidisciplinary
Huimin Ji, Chunlin Xie, Tingqing Wu, Hao Wang, Zhiwen Cai, Qi Zhang, Wenbin Li, Liang Fu, Huanhuan Li, Haiyan Wang
Summary: Amide additives act as hydrogen-bonding ligands, breaking the cross-linking structures between water molecules and increasing the entropy of mixed solvents, resulting in a mixed solvent with an ultralow freezing point of -98°C. Zinc-ion batteries using this hybrid solvent exhibit good cycling stability over a wide temperature range from -60°C to 50°C.
CHEMICAL COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Yaping Zeng, Le Zhao, Jiaming Zhang, Qiuping Li, Dan Sun, Yu Ren, Yougen Tang, Guanhua Jin, Haiyan Wang
Summary: Polymer solid electrolytes (SEs) are ideal for advanced lithium-metal solid-state batteries (SSBs) due to their high safety and flexibility. Polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) polymer SEs have gained attention for their high dielectric constants, high ionic conductivity, and excellent flexibility. However, the cycle life of PVDF-HFP-based SSBs is reduced by severe side reactions at the interface caused by residual DMF solvent decomposition. In this study, La2O3 nanoparticles are used as inorganic fillers to improve the cycling stability of PVDF-HFP/LiFSI/La2O3-40% composite polymer electrolyte (PVDF-HFP/La2O3 CPE). PVDF-HFP/LiFSI solid electrolyte (PVDF-HFP SE) containing 40 wt% La2O3 exhibits the highest ionic conductivity and stable interface chemistry, showing potential for application in SSBs.
