LiNi0.5Mn1.5O4-based composite electrodes with improved properties prepared by a slurry spray deposition process

JOURNAL OF POWER SOURCES

卷:340

Article

Yu, Ran^1,2  Sun, Yi³  Zou, Bang-Kun^1,2  Deng, Miao-Miao^1,2  Xie, Jing-Ying³  Chen, Chun-Hua^1,2 

[1] Univ Sci & Technol China, CAS Key Lab Mat Energy Convers, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Hefei 230026, Anhui, Peoples R China

[3] Shanghai Inst Space Power Sources, Shanghai 200050, Peoples R China

关键词: Spray deposition;    Blade coating;    Adhesion;    Lithium nickel manganese oxide;    Lithium battery;   

DOI  :  10.1016/j.jpowsour.2016.11.084

来源: Elsevier

【 摘 要 】

A slurry spray deposition (SSD) process is utilized to prepare a LiNi0.5Mn1.5O4-based composite electrode supported on an aluminum foil. The spray deposition process is performed at room temperature through the atomization and deposition of the composite electrode slurry. A comparative LiNi0.5Mn1.5O4-based composite electrode is also prepared by the traditional blade coating method. The surface morphology and elements mapping of the electrodes are measured by scanning electron microscopy and energy dispersive X-ray spectroscopy, respectively. The adhesion between the composite electrode layers and the aluminum foil is also tested. A parallel evaluation on the mechanical and electrochemical performances of the two kinds of electrodes is conducted. The SSD electrode exhibits improved adhesion, cycling stability and rate capability. Therefore, the SSD process is an effective way to fabricate advanced electrodes for high performance lithium ion cells. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

Free