Amorphous 0.035Li₂O-BPO₄ coating for enhanced electrochemical performance of Li[Ni_0.5Co_0.2Mn_0.3]O₂ cathode material

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• 作者：Wujie Ge^a ; ^b ; ^{gegwj0359@163.com} ; Hao Wang^a ; ^b ; Zhengwei Xie^b ; Xiang Li^a ; ^b ; Meizhen Qu^b ; ^{mzhqu@cioc.ac.cn} ; Gongchang Peng^b
• 关键词：Lithium-ion battery ; Li[Ni0.5Co0.2Mn0.3]O2 cathode material ; 0.035Li2O-BPO4 coating layer ; Cycling stability
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：693
• 期：Complete
• 页码：606-614
• 全文大小：2759 K
• 卷排序：693

文摘

Li[Ni0.5Co0.2Mn0.3]O2 cathode material is coated by amorphous 0.035Li2O-BPO4. The lattice parameters of Li[Ni0.5Co0.2Mn0.3]O2 material are not changed after coating. 0.035Li2O-BPO4 coating is positive in improving lithium diffusion ability. The optimum coating content is found to be 2 wt%. 0.035Li2O-BPO4 coating effectively improves cycling performance and rate capability.