Surface modification of Li_(3)InCl_(6)provides superior electrochemical performance for LiMn_(2)O_(4)cathode materials  

作　　者：Yixun Gu Kuan Yang Hongbin Yao Weijian Li Haiqing Zhan Xianquan Ming Guanhan Huang Guiliang Li Feng Zhan 

机构地区：[1]School of Resources Environment and Materials,Guangxi University,Nanning 530004,China [2]South Manganese Group Limited,Nanning 530000,China

出　　处：《Chinese Chemical Letters》2023年第5期505-508,共4页中国化学快报（英文版）

基　　金：supported by Guangxi Higher Education Key Laboratory of Advanced Materials;Center of Ecological Collaborative Innovation for Aluminum Industry in Guangxi;CITIC Dameng Mining Industries Limited-Guangxi University Joint Research Institute of Manganese Resources Utilization and Advanced Materials Technology;Guangxi University-CITIC Dameng Mining Industries Limited Joint Base of Postgraduate Cultivation;National Natural Science Foundation of China(No.11364003);Guangxi Innovation Driven Development Project(Nos.AA17204100,AA18118052);the Natural Science Foundation of Guangxi Province(No.2018GXNSFAA138186)。

摘　　要：Li Mn_(2)O_(4)(LMO)is the substance of choice for small and medium-sized energy storage materials in daily life.In this work,Li3InCl6(LIC)is prepared on the surface of LiMn_(2)O_(4)by hydrothermal method using InCl_(3)and LiCl as raw materials.This method stabilizes the LMO crystal structure by uniformly coating the LIC on the LMO surface and effectively maintains the morphology of LMO crystals during the cycling process.SEM and EDS analysis confirm the morphology and homogeneity of the synthesized material LIC on the LMO surface.The prepared material is put into a battery,and the charge-discharge test is carried out at 0.5 C and 1 C.The results show that the LIC surface-modified samples exhibit more than 6%higher cycling performance than the unmodified samples after long cycling.

关 键 词：Li-ion batteries Cathode material LiMn_(2)O_(4) Li_(3)InCl_(6) Surface modification 

分 类 号：TQ131.11[化学工程—无机化工] TM912[电气工程—电力电子与电力传动]