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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 609 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 607 | - |
dc.citation.title | ELECTROCHEMICAL AND SOLID STATE LETTERS | - |
dc.citation.volume | 2 | - |
dc.contributor.author | Cho, Jaephil | - |
dc.contributor.author | Kim, GB | - |
dc.contributor.author | Lim, HS | - |
dc.contributor.author | Kim, CS | - |
dc.contributor.author | Yoo, SI | - |
dc.date.accessioned | 2023-12-22T12:09:26Z | - |
dc.date.available | 2023-12-22T12:09:26Z | - |
dc.date.created | 2014-07-28 | - |
dc.date.issued | 1999-12 | - |
dc.description.abstract | A significant improvement in high temperature performance of LiMn2O4 cathode material has been achieved by sol-gel coating its particle surface with LiCoO2. Although the LiCoO2 coating completely disappeared by reacting with LiMn2O4 at 800 degrees C, a newly formed spinel phase, Li1+xMn2-xCoxO4, having a higher Co concentration at the particle surface, provided excellent structural stability on cycling at 55 degrees C. Although the initial capacity at 55 degrees C was reduced to 109 from 113 mAh/g by the coating, the stability on cycling was noticeably improved. The coated LiMn2O4 retains approximately 91% of its initial capacity after 100 cycles at 0.2 C rate at 55 degrees C while the uncoated LiMn2O4 suffered nearly 50% loss of the initial capacity in the same condition. These results indicate that higher concentration of Co ions at the surface is effective in protecting the active material from Mn3+ dissolution into electrolytes, resulting in the performance improvement. | - |
dc.identifier.bibliographicCitation | ELECTROCHEMICAL AND SOLID STATE LETTERS, v.2, no.12, pp.607 - 609 | - |
dc.identifier.doi | 10.1149/1.1390922 | - |
dc.identifier.issn | 1099-0062 | - |
dc.identifier.scopusid | 2-s2.0-0033285338 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/5250 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0033285338 | - |
dc.identifier.wosid | 000083343900001 | - |
dc.language | 영어 | - |
dc.publisher | ELECTROCHEMICAL SOC INC | - |
dc.title | Improvement of structural stability of LiMn2O4 cathode material on 55 degrees C cycling by sol-gel coating of LiCoO2 | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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