%0 Journal Article
%T Microstructure and Electrochemical Properties of LiNi1/3Co1/3Mn1/3O2 Coated with Al2O3 Film<br>Al2O3膜表面包覆LiNi1/3Co1/3Mn1/3O2的微观结构和电化学特性
%A LI Xin-Lu
%A KANG Fei-Yu
%A BAI Xin-De
%A SHEN Wan-Ci
%A <br>李新禄
%A 康飞宇
%A 白新德
%A 沈万慈
%J 无机材料学报
%D 2007
%I Science Press
%X LiNi1/3Co1/3Mn1/3O2 is considered as a new-generation cathode material for lithium ion batteries. Al2O3 film was coated on the surface of LiNi1/3Co1/3Mn1/3O2 in order to prevent irreversible reactions between cathode and electrolytes. The structure analysis indicates that the Al2O3 film is amorphous with thickness of about 100nm, the core material has a hexagonal structure. The experiment results show that Al2O3 coating is effective to improve overcharge capability and cycle stability. The capacity retention of the coated LiNi1/3Co1/3Mn1/3O2 is increased by 11.5% compared with that of a blank sample after 50 charge-discharge cycles at the cutoff voltage of 3.0-4.5V and 1C rate.
%K cathode materials
%K surface coating
%K lithium ion batteries
%K Al2O3 film<br>正极材料
%K 表面包覆
%K 锂离子电池
%K Al2O3膜
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=2E98CB3C1A75BCF2EDA75FA546AB8147&yid=A732AF04DDA03BB3&vid=BC12EA701C895178&iid=B31275AF3241DB2D&sid=1F51A4E3D1D75885&eid=FC27EB98080C89E6&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=0&reference_num=13