锂离子电池高镍三元材料的包覆改性研究进展
收稿日期: 2020-09-07
网络出版日期: 2021-08-11
基金资助
青海省自然青年基金资助项目(2019-ZJ-957Q);青海师范大学中青年科研基金项目(2019zr015)
Research progress of coating modification of high nickel ternary materials for lithium-ion batteries
Received date: 2020-09-07
Online published: 2021-08-11
赵段 , 周庚 , 侯顺丽 , 蓝兹炜 , 张建茹 , 李健 , 王甲泰 . 锂离子电池高镍三元材料的包覆改性研究进展[J]. 无机盐工业, 2021 , 53(8) : 1 -7 . DOI: 10.19964/j.issn.1006-4990.2020-0503
High nickel ternary materials for lithium-ion batteries have become the preferred cathode materials for electric ve-hicles and portable electronic devices due to the advantages of long cycle life,environmental protection and low cost.However,increase of nickel content tends to make surface structure of materials unstable and increase side reaction of the interface,which leads to decrease of the cycle performance of materials.In this paper,the modification research of high nickel ternary materials from two aspects of single-layer and double-layer coating was reviewed and the influence of different coating materials on electrochemical performance was introduced.Double-layer coating could better improve the electrochemical performance of high nickel ternary materials,but the removal of HF still needs to be studied.
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