Electrochemical and structural performances of Li[Ni_(0.133)Li_(0.2)Co_(0.133)Mn_(0.533)]O_(2)material during different cycle potential windows

作     者：Jun-Qiang Li Yun-Jie Yang Jing Pang Jun-Qiang Li;Yun-Jie Yang;Jing Pang

作者机构：Research and Development Center for Vehicle Battery and Energy StorageGeneral Research Institute for Nonferrous MetalsBeijing100088China Beijing Institute of Chemical ReagentsBeijing102607China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2022年第41卷第8期

页      面：2664-2679页

核心收录：

学科分类：0808[工学-电气工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：financially supported by the HiTech Research and Development Program of China (No. 2011AA11A254) 

主　　题：Lithium-ion battery Li-rich solid solution material Charge cutoff potential Cycle potential window Cycle performance 

摘      要：The effects of cycle potential window on electrochemical behaviors,structural characteristics,and surface changes in Li[Ni_(0.133)Li_(0.2)Co_(0.133)Mn_(0.533)]O_(2)(or 0.5 Li_(2)MnO_(3)·0.5 Li(Co_(0.333)Ni_(0.333)Mn_(0.333))O2)in lithium-ion battery were *** flat charge potential plateaus,~3.9 and~4.5 V,are observed in the initial charge curves of the *** changes in specific capacity and columbic efficiency are presented at~4.5 V during the first *** specific peaks show an obvious shift with the increase in charge cutoff *** the charge cutoff potential is above4.4 V,the cycle performance decreases with the increase in charge cutoff potentials.A film with the composition of C and O elements is observed on the cycled composite particle.