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标题：Optimized electrochemical performance of Ni rich LiNi0.91Co0.06Mn0.03O2 cathodes for high-energy lithium ion batteries
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作者：Seung-Hwan Lee ; Seul Lee ; Bong-Soo Jin 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2019
卷号：9
期号：1
页码：1-7
DOI：10.1038/s41598-019-45531-2
出版社：Springer Nature
摘要：We report high electrochemical performances of LiNi 0.91 Co 0.06 Mn 0.03 O 2 cathode material for high-energy lithium ion batteries. LiNi 0.91 Co 0.06 Mn 0.03 O 2 is synthesized at various sintering temperatures (640~740 °C). The sintering temperatures affect crystallinity and structural stability, which play an important role in electrochemical performances of LiNi 0.91 Co 0.06 Mn 0.03 O 2 . The electrochemical performances are improved with increasing sintering temperature up to an optimal sintering temperature. The LiNi 0.91 Co 0.06 Mn 0.03 O 2 sintered at 660 °C shows remarkably excellent performances such as initial discharge capacity of 211.5 mAh/g at 0.1 C, cyclability of 85.3% after 70 cycles at 0.5 C and rate capability of 90.6% at 2 C as compared to 0.5 C. These results validate that LiNi 0.91 Co 0.06 Mn 0.03 O 2 sintered at 660 °C can be regarded as a next generation cathode.