Article
Materials Science, Ceramics
Hsing- Hsiang, Bi -Ru Cai, Sheng-Heng Chung, Li-Wen Chu, Jing -Ru Tseng, Yue-Ming Shen
Summary: The monoclinic lithium vanadium phosphate (LVP) is a promising cathode material for lithium-ion batteries due to its high theoretical specific capacitance, high operating voltage, good ionic conductivity, and thermal stability. Synthesizing the pure LVP phase requires complicated procedures, but can be achieved through heat treatment of glass powder produced using the double crucible method. Carbon coating can improve the electrical conductivity and electrochemical properties of LVP.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Qinyan Yang, Xiang Yao, Hualing Tian, Yanjun Cai, Zhi Su
Summary: The introduction of fast ion conductor LVP into LVOP enhances electronic conductivity and first discharge specific capacity of the composite material, leading to improved cycle performance. The presence of both LVOP and LVP phases with carbon coating in the synthesized material contributes to the increase in Li+ pervasion channels and acceleration of Li+ transmission speed, further boosting electrochemical performance.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Jinshu Tong, Anyu Su, Teng Ma, Junjie Ba, Luyao Wang, Zeyu Zhang, Jingyi Qiu, Xibang Chen, Yizhan Wang, Yingjin Wei
Summary: Severe capacity degradation at low temperatures hampers the wide application of lithium-ion batteries in consumer electronics and electric vehicles. This study proposes a binary coating layer for the cathode material, which significantly improves the high-rate capability and low-temperature performance of batteries without changing the electrolyte formulation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Haiyan Yan, Minhao Li, Yuqiao Fu, Shujuan Chen, Yi Wang, Bo Zhang
Summary: In this study, a facile method was proposed to fabricate conductive polypyrrole-enhanced LVPO composite, and its morphology, microstructure, phase structure, and battery performance were systematically investigated. The results demonstrate that the composite exhibits superior lithium storage performance due to the synergistic effects of nanosized LVPO particles and conductive polypyrrole film.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Applied
Manling Ding, Chen Cheng, Qiulong Wei, Yue Hu, Yingying Yan, Kehua Dai, Jing Mao, Jinghua Guo, Liang Zhang, Liqiang Mai
Summary: This study demonstrates the remarkable high-rate capability and long-term cycling performance of carbon decorated Li3V2(PO4)(3) cathode. Through spectroscopic analysis, the reversible evolution of V-O hybridization strength in LVP/C during the discharge-charge processes is identified as a key factor contributing to its outstanding electrochemical performance. This research not only provides an effective synthesis strategy but also deeper insights into the surface and bulk electrochemical reaction mechanism of LVP, which could benefit the further design of high-performance LVP electrode materials.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Nali Li, Yanwei Tong, Dawei Yi, Xumei Cui, Xuefeng Zhang
Summary: Monoclinic Li3V2-xZrx(PO4)(3)/C composites with different Zr4+ doping amounts were prepared by a sol-gel combustion technique. Zr4+ doping led to an expansion in lattice volume, improved morphological characteristics, reduced resistances, and enhanced electrochemical performance. Optimal doping level of Zr4+ was found to be x = 0.05, resulting in the highest tap density and excellent electrochemical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Analytical
Duyoung Choi, Ji-Yeon Shim, Sungwoong Choi, Sangmin Park, Harok Jeong, Min -Su Kim, Jungpil Kim, Junghoon Yang
Summary: Alkali vanadium phosphates are promising electrode materials for next-generation ion batteries, but suffer from low electronic conductivity due to phosphate group. In this study, a method of building an effective carbon backbone in alkali vanadium phosphate and carbon composite is proposed to overcome this issue. The carbon backbone not only provides electron pathways but also suppresses particle agglomeration, resulting in efficient ion diffusion and electron transfer. The importance of efficient carbon composite materials for phosphate-based electrode materials is demonstrated by investigating the rhombohedral Li3V2(PO4)3 material as a cathode and anode for lithium-ion batteries, which is a different phase from the well-known monoclinic Li3V2(PO4)3.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Electrochemistry
Hwang Sheng Lee, Vishwanathan Ramar, Saravanan Kuppan, Mangayarkarasi Nagarathinam, Markas Law, Chen Wang, Abhinav Tripathi, Palani Balaya
Summary: The one-pot soft template synthesis of alpha-Li3V2(PO4)(3)/C shows excellent storage and rate performances, with unique morphology and long cycle life. This cathode material demonstrates high discharge capacities and better rate performance compared to known cathode materials for lithium-ion batteries.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Limin Zhu, Lulu Mo, Lingling Xie, Xiaoyu Cao
Summary: In this study, a simple and efficient synthetic route was developed to prepare LZO-LVPC composites by mechanically ball-milling. The composites showed improved electrochemical performance, with enhanced charge transfer and diffusion of Li+ compared to pristine LVPC. This synthetic method is convenient for large-scale production.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Qiang Fu, Bingrui Guo, Weibo Hua, Angelina Sarapulova, Lihua Zhu, Peter G. G. Weidler, Alexander Missyul, Michael Knapp, Helmut Ehrenberg, Sonia Dsoke
Summary: In this study, the electrochemical properties and reaction mechanism of Li3-2xCaxV2(PO4)(3)/C as negative electrode materials for sodium-ion/potassium-ion batteries were investigated. It was found that the Ca content influenced the diffusion-controlled and pseudocapacitive-type processes in the batteries. Li3V2(PO4)(3)/C showed the highest reversible capacity, while Ca1.5V2(PO4)(3)/C exhibited the best rate performance. It was also discovered that the specific capacity of the material did not increase with Ca-content, but the stability and performance at high C-rate improved by replacing Li+ with Ca2+.
Article
Electrochemistry
Jieqiong Li, Chengjin Liu, Manyi He, Shuqing Nie, Chang Miao, Shengwei Sun, Guanli Xu, Wei Xiao
Summary: Spherical Li1.3Al0.3Ti1.7(PO4)3 (LATP) solid electrolyte powders were successfully synthesized by spray-drying and O2 pressure-controlled calcination processes. The targeted ZnO@LATP composite solid electrolytes were obtained by coating a 2 μm thickness of ZnO layer on the surface of LATP powders, effectively isolating direct contact between LATP electrolyte sheet and lithium metal electrode, and regulating lithium deposition reaction on the electrolyte surface to restrain lithium dendrite over-growth.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Hanyong Wang, Jiao Lin, Xiaodong Zhang, Lecai Wang, Jingbo Yang, Ersha Fan, Feng Wu, Renjie Chen, Li Li
Summary: The study demonstrates that coating NCM cathode with polysiloxane can significantly improve cycling performance, with a capacity retention of 91.5% after 120 cycles, which is 1.3 times higher than pristine NCM.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Electrochemistry
Debabrata Mohanty, Zhen-Lun Lu, I-Ming Hung
Summary: Lithium-ion batteries have become the main power source for hybrid electric vehicles and electric vehicles, and monoclinic-phase Li3V2(PO4)(3) (LVP) is a potential cathode material for the next generation of lithium-ion batteries due to its high operating voltage and low cost. In this study, carbon-coated LVP nano-crystallites were synthesized using the citric-acid gel process, and the effects of carbon coating amount on material characteristics and electrochemical performance were investigated. The results showed that the 11.9% carbon-coated LVP sample exhibited good electrochemical performance during charge-discharge process.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Materials Science, Ceramics
Zan Huang, Peifang Luo, Honghong Zheng, Zhaochun Lyu
Summary: A series of three-dimensional Al3+-doped Li3V2(PO4)(3)@C/CNTs microspheres were fabricated for the first time using a simple spray drying and solid-state reaction process. The Li+ diffusion coefficient and electrical conductivity of Li3V2(PO4)(3) were significantly enhanced due to the Al3+ doping and the formation of a three-dimensional network by the carbon film and CNTs. The Al3+-doped composites showed excellent lithium storage properties, including high capacity and good cyclic-life, making Al3+ doping a promising strategy for improving the rate properties of Li3V2(PO4)(3) for lithium energy storage.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Shuangying Wei, Marco Serra, Stefanos Mourdikoudis, Huaijuan Zhou, Bing Wu, Lukas Dekanovsky, Jiri Sturala, Jan Luxa, Reshef Tenne, Alla Zak, Zdenek Sofer
Summary: The researchers prepared carbon-coated WS2 nanocomposites by precipitating a carbon precursor on WS2 nanotubes, which showed improved electrochemical performance in lithium-ion batteries and sodium-ion batteries with high capacity and stable cycling performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Xin Chen, Lixia Yuan, Zhangxiang Hao, Xiaoxiao Liu, Jingwei Xiang, Zhuoran Zhang, Yunhui Huang, Jia Xie
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Nanoscience & Nanotechnology
Yuyu Li, Zhi Deng, Jian Peng, Jintao Gu, Enyi Chen, Yao Yu, Jianfang Wu, Xiang Li, Jiahuan Luo, Yangyang Huang, Yue Xu, Zhonghui Gao, Chun Fang, Jinlong Zhu, Qing Li, Jiantao Han, Yunhui Huang
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Inorganic & Nuclear
Shubiao Xia, Fushao Li, Xue Li, Feixiang Cheng, Chengke Sun, Jian-Jun Liu, Hong Guo
DALTON TRANSACTIONS
(2018)
Article
Chemistry, Multidisciplinary
Chao Wang, Tanyuan Wang, Jiajie Liu, Yue Zhou, Daiwei Yu, Jeng-Kuei Cheng, Fei Han, Qing Li, Jitao Chen, Yunhui Huang
ENERGY & ENVIRONMENTAL SCIENCE
(2018)
Article
Chemistry, Physical
Fushao Li, Shubiao Xia, Yingxian Xu, Yuxing Yan, Chengke Sun, Long Jiang, Yunhui Huang
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Chemistry, Physical
Shubiao Xia, Fushao Li, Feixiang Chen, Hong Guo
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Chemistry, Physical
Xiaona Song, Xunfu Zhou, Yaoming Deng, Junmin Nan, Dong Shu, Zhuodi Cai, Yunhui Huang, Xinhe Zhang
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Electrochemistry
Kai Yuan, Lixia Yuan, Jingwei Xiang, Jing Liu, Junfang Gu, Xin Chen, Zhangxiang Hao, Ming Li, Yunhui Huang
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2018)
Article
Chemistry, Physical
Xiang Li, Yangyang Huang, Jingsong Wang, Lin Miao, Yuyu Li, Yi Liu, Yuegang Qiu, Chun Fang, Jiantao Han, Yunhui Huang
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
Article
Chemistry, Physical
Pei Hu, Chaoji Chen, Rui Zeng, Jingwei Xiang, Ying Huang, Dongfang Hou, Qing Li, Yunhui Huang
Article
Chemistry, Physical
Ke Bi, Meihua Bi, Yanan Hao, Wei Luo, Ziming Cai, Xiaohui Wang, Yunhui Huang
Article
Chemistry, Physical
Wanqi Chen, Wei Yin, Yue Shen, Zhaoming Huang, Xianglin Li, Fangzhou Wang, Wang Zhang, Zhe Deng, Zhuoran Zhang, Yunhui Huang
Article
Chemistry, Multidisciplinary
Sumair Imtiaz, Zahid Ali Zafar, Rameez Razaq, Dan Sun, Ying Xin, Qian Li, Zhaoliang Zhang, Lei Zheng, Yunhui Huang, James A. Anderson
ADVANCED MATERIALS INTERFACES
(2018)
Article
Chemistry, Multidisciplinary
Haiyan Lu, Fangxing Ai, Yanlong Jia, Chunyan Tang, Xinhe Zhang, Yunhui Huang, Hanxi Yang, Yuliang Cao
Article
Chemistry, Physical
Chung-Fu Cheng, Xiang Li, Kewei Liu, Feng Zou, Wei-Yao Tung, Yi-Fan Huang, Xuhui Xia, Chien-Lung Wang, Bryan D. Vogt, Yu Zhu
ENERGY STORAGE MATERIALS
(2019)
