电池2013，Vol.43Issue(4)：186-188,3.
Li[Li0.2Mn0.54Ni0.13Co0.13]O2的界面电化学行为
Interfacial electrochemical behaviour of Li[Li0.2Mn0.54Ni0.13 Co0.13]O2
摘要
Abstract
The initial charge-discharge curves exhibited that the structural changes of Li [Li0.2 Mn0.54 Ni0.13 Co0.13] O2 occurred at the plateau of 4.5 V,the active component Li2MnO3 was associated with Li + removal from the structure accompanying the irreversible oxygen loss and a high irreversible capacity in the subsequent discharge process were obtained.The cyclic voltammogram(CV) and electrochemical impedance spectroscopy indicated that a new compound was found with the charge voltage above 4.4 V by structural rearrangement.The SEM microscopy displayed that a thick solid state film was found on the surface of dectrode material.The dQ/dU curves demonstrated that the oxygen loss mechanism occurred at Li-rich materials in the initial cycle,which was sinilar to the CV curve.关键词
富锂材料/Li[Li0.2Mn0.54Ni0.13Co0.13]O2/界面反应/氧脱出Key words
Li-rich material/ Li[Li0.2Mn0.54Ni0.13Co0.13]O2/ interfacial reaction/ oxygen loss分类
信息技术与安全科学引用本文复制引用
李会峰,庞静,杨允杰,卢世刚..Li[Li0.2Mn0.54Ni0.13Co0.13]O2的界面电化学行为[J].电池,2013,43(4):186-188,3.基金项目
中国博士后面上基金项目(2012M510368),国家高新技术研究(863)发展计划重大项目(2012AA110102,2011AA11A269),北京市科技计划课题(Z121100006712002) （2012M510368）
