Surface coating of a LiNixCoyAl1-x-yO2 (x > 0.85) cathode with Li3PO4 for applying a water-based hybrid polymer binder during Li-ion battery preparation

被引：10

作者：

Watanabe, Tatsuya ^{[1
]}

Yokokawa, Tamae ^{[1
]}

Yamada, Mitsuru ^{[1
]}

Kurosumi, Shoudai ^{[2
]}

Ugawa, Shinsaku ^{[2
]}

Lee, Hojin ^{[2
]}

Irii, Yuta ^{[3
]}

Maki, Fumihiko ^{[3
]}

Gunji, Takao ^{[1
]}

Wu, Jianfei ^{[4
]}

Matsumoto, Futoshi ^{[1
]}

机构：

[1] Kanagawa Univ, Dept Mat & Life Chem, Kanagawa Ku, 3-27-1 Rokkakubashi, Yokohama, Kanagawa 2218686, Japan

[2] JSR Corp, 100 Kawajiri Cho, Yokaichi, Mie 5108552, Japan

[3] Nihon Kagaku Sangyo Co Ltd, 1-28-13 Nakane, Soka, Saitama 3400005, Japan

[4] Chinese Acad Sci, Qingdao Ind Energy Storage Res Inst, Qingdao Inst Bioenergy & Bioproc Technol, 189 Songling Rd, Qingdao 266101, Peoples R China

来源：

RSC ADVANCES | 2021年 / 11卷 / 59期

关键词：

TRANSITION-METAL OXIDE; COATED HIGH-VOLTAGE; ELECTROCHEMICAL PERFORMANCE; ENERGY-STORAGE; ELECTRODE; LINIACOBAL1-A-BO2; DEGRADATION; CHALLENGES; STABILITY; PROSPECTS;

D O I：

10.1039/d1ra06409f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

To produce water-stable Ni-rich lithium nickel cobalt aluminum oxides (LiNixCoyAl1-x-yO2, x > 0.85, NCAs), the formation of trilithium phosphate (Li3PO4)-coated layers on the NCA surfaces was attempted through the use of a surface reaction in a mixture of ethanol and water and a post-heat treatment at 350 and 400 degrees C. Based on the results of X-ray photoelectron spectroscopy (XPS), the coated layers consisted of nickel phosphate (Ni-3(PO4)(2)) and Li3PO4. The coated NCA surface could have sufficient water stability to maintain the cathode performance in a water slurry for 1 day. In addition, the coated layers formed on the NCA surfaces did not block Li+-ion transfer through the Ni-3(PO4)(2)/Li3PO4-coating layers and enhanced the high-rate discharge performance.

引用

页码：37150 / 37161

页数：12

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Surface coating of a LiNixCoyAl1-x-yO2 (x &gt; 0.85) cathode with Li3PO4 for applying a water-based hybrid polymer binder during Li-ion battery preparation

Surface coating of a LiNixCoyAl1-x-yO2 (x > 0.85) cathode with Li3PO4 for applying a water-based hybrid polymer binder during Li-ion battery preparation