| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5369664 | Applied Surface Science | 2007 | 6 Pages |
Abstract
The present study used the Pechini process with a heat treatment to synthesize LiMn2O4 powder (LMO). After surface coating, a nano-sized oxidative film of Li-Ni-Mn formed on the surface of the LMO-Ni powders. The concentration of Mn3+ for the LMO-Ni powder was lower and the average electrovalence of Mn exceeded the theoretical value, resulting in the initial capacity of the LMO-Ni powder being lower than the LMO powder. However, the LMO-Ni powder with the Li/Ni film not only restrained Mn ions from dissolving into the electrolyte, but also improved the charge-discharge cycling capacity.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Fei-Yi Hung, Truan-Sheng Lui, Hung-Chi Liao,