Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1637357 | Transactions of Nonferrous Metals Society of China | 2014 | 6 Pages |
Abstract
Aluminum foils having thicknesses of 10-20 μm are commonly employed as current collectors for cathode electrodes in Li-ion batteries. The effects of the surface morphology of the foil on battery performance were investigated by using a foil with roughened surface by chemical etching and a plain foil with smooth surface on both sides. For high-conductivity LiCoO2 active materials with large particle size, there are no significant differences in battery performance between the two types of foils. But for low-conductivity LiFePO4 active materials with small particle size, high-rate discharge properties are significantly different. The possibility shows that optimizing both the surface morphology of the aluminum foil and particle size of active material leads to improvement of the battery performance.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Shigeki NAKANISHI, Takashi SUZUKI, Qi CUI, Jun AKIKUSA, Kenzo NAKAMURA,