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标题：Investigation of Ph on Electrochemical Performances of Ni-Rich NCM Cathode Material Precursor
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作者：Yaochun Yao ; Wenzhe Shen ; Yi Mac 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：2
页码：1-6
DOI：10.1088/1755-1315/252/2/022053
出版社：IOP Publishing
摘要：Ni-rich NCM cathode material is widely recognized as one of the most cathode materials for lithium ion power batteries due to its high specific capacity, high energy density and low cost. In this paper, the NCM cathode material precursor Ni_0.8Co_0.1Mn_0.1 (OH)₂ was prepared by coprecipitation method and the optimum conditions were explored. Also, the effects of different pH values on the morphology and electrochemical performance of the prepared materials were investigated. The results showed that the best synthesis conditions of the precursor are pH=10. The precursor has a regular morphology and uniform particles. The samples calcined under oxygen atmosphere displays the best electrochemical properties. The initial coulombic efficiency is 85.48% at 0.2 C, the discharge specific capacity is up to 192 mAh g⁻¹ at 0.2 C.