dc.citation.endPage |
189 |
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dc.citation.number |
1-2 |
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dc.citation.startPage |
186 |
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dc.citation.title |
JOURNAL OF POWER SOURCES |
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dc.citation.volume |
126 |
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dc.contributor.author |
Cho, Jaephil |
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dc.date.accessioned |
2023-12-22T11:07:05Z |
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dc.date.available |
2023-12-22T11:07:05Z |
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dc.date.created |
2014-06-26 |
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dc.date.issued |
2004-02 |
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dc.description.abstract |
The overcharge behaviour of AIPO(4)-coated LiCoO2 cathodes as a function of coating thickness is investigated in Li-ion cells at 1 and 2 C overcharging rates. The AIPO(4) coating thickness is controlled by the concentration of the coating solution. During 1 C-overcharging to 12 V, the 5 V plateau region, which is indicative of both electrolyte oxidation and an exothermic reaction between the electrolyte and the cathode, decreases with increasing AIPO(4) coating thickness (AIPO(4) concentration). Therefore, a Li-ion cell containing a P100-coated LiCoO2 cathode (AIPO(4) coating thickness estimated as 1000 Angstrom) does not show the 5 V plateau, and displays the lowest cell external temperature of 60degreesC, even at 12 V. This suggests that the reaction at the 5 V plateau strongly influences the final external temperature of the cell. When a higher current is applied (2 C), cells with bare or P10-coated LiCoO2 cathodes either burst or explode, and reach external temperatures of over 275degreesC. By contrast, cells with P30 and P100-coated cathodes show only a swollen external appearance with temperature profiles similar to those at the 1 C-overcharging rate. |
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dc.identifier.bibliographicCitation |
JOURNAL OF POWER SOURCES, v.126, no.1-2, pp.186 - 189 |
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dc.identifier.doi |
10.1015/j.jpowsour.2003.08.033 |
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dc.identifier.issn |
0378-7753 |
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dc.identifier.scopusid |
2-s2.0-0742285683 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/5065 |
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dc.identifier.url |
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0742285683 |
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dc.identifier.wosid |
000188947000027 |
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dc.language |
영어 |
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dc.publisher |
ELSEVIER SCIENCE BV |
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dc.title |
Dependence of AlPO4 coating thickness on overcharge behaviour of LiCoO2 cathode material at 1 and 2 C rates |
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dc.type |
Article |
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dc.description.journalRegisteredClass |
scopus |
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