Study of life evaluation methods for Li-ion batteries for backup applications
The backup characteristics of lithium-ion batteries were investigated using commercial prismatic lithium-ion cells with a LiCoO 2/graphite cell system. An accelerated method of estimating the lifetime of lithium-ion batteries was developed. It was found that higher temperatures and voltages accelera...
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Veröffentlicht in: | Journal of power sources 2003-06, Vol.119, p.902-905 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | The backup characteristics of lithium-ion batteries were investigated using commercial prismatic lithium-ion cells with a LiCoO
2/graphite cell system. An accelerated method of estimating the lifetime of lithium-ion batteries was developed. It was found that higher temperatures and voltages accelerate the degradation of the cells: a 15
°C increase in temperature cuts the cell life in half, and about 0.1
V increase in charging voltage also cut the cell life in half. |
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ISSN: | 0378-7753 1873-2755 |
DOI: | 10.1016/S0378-7753(03)00208-8 |