Abstract
Fine-sized Li-Co-Mn-O cathode particles with various ratios of cobalt and manganese components were prepared by conventional solid-state reaction method using the nano-sized precursor particles. The nano-sized precursor particles of cobalt and manganese components were prepared by spray pyrolysis. The LiCo1-xMnxO2 (0.1 ≤ x ≤ 0.3) particles had finer size than that of the pure LiCoO2 particles. Manganese component disturbed the growth of the LiCo1-xMnxO2 cathode particles prepared by solid-state reaction method. The initial discharge capacities of the layered LiCo1-xMnxO2 (0 ≤ x ≤ 0.3) cathode particles decreased from 144 to 136 mAh g-1 when the ratios of Co/Mn components were changed from 1/0 to 0.7/0.3. The mean sizes of the spinel LiMn2-yCoyO4 (0 ≤ y ≤ 0.2) cathode particles decreased from 650 to 460 nm when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2. The initial discharge capacities of the LiMn2-yCoyO4 (0 ≤ y ≤ 0.2) cathode particles decreased from 119 to 86 mAh g-1 when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2.
Original language | English |
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Pages (from-to) | 598-602 |
Number of pages | 5 |
Journal | Journal of Power Sources |
Volume | 174 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2007 Dec 6 |
Externally published | Yes |
Keywords
- Cathode particle
- Lithium cobaltate
- Lithium manganate
- Spray pyrolysis
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering