Co3O4 nanosheets coated Li[Ni0.8Co0.15Al0.05]O2 as highly reversible cathode materials for lithium i

• 作 者: Nan Su Yakun Lu Jun Liu
• 机 构: SchoolofmaterialsScienceandEngineering,CentralSouthUniversity,Changsha,Hunan,410083,PRChina
• 出 处: 第十二届全国X射线衍射学术大会暨国际衍射数据中心(ICDD)研讨会
• 发表日期: 2015年10期

The surface of the Li[Ni0.8Co0.15Al0.05]O2 cathode material was coated by Co3O4 nanosheets with thickness of 100nm via a ultrasonic and stirring method.The electrochemical performances of Li[Ni0.8Co0.15Al0.05]O2 were improved by the Co3O4-coating,especially the cycling performance.Although the initial discharge capacity of pristine and Co3O4-coated Li[Ni0.8Co0.15Al0.05]O2 was almost the same,the capacity of the material at 0.2C between 3.0 and 4.2 V in room temperature can retain about 94 ％after 100 cycles.