Abstract

LiNi0.8Co0.1Mn0.1O2 (NCM811) is considered as a promising cathode material for lithium-ion batteries (LIBs) due to its advantages of high lithium storage capacity, low cost and excellent safety. However, lithium element of NCM series is easily lost in the preparation process, which leads to the rapid decline of cathode material capacity. Previous researches show that coating is an effective way to reduce the loss of elements, improve the electrochemical properties and thermal stability of the material. In this paper, the author focuses on different synthesis methods and different molar (or weight) ratios of Li2ZrO3, finding out that different synthesis methods can affect the electrochemical performances of target materials and right now research result is that 1wt.% NCM811@ Li2ZrO3 has the best property among other molar (or weight) ratios of NCM811@ Li2ZrO3.

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