Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 9, Issue 3, Pages 475-479Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2006.10.022
Keywords
lithium difluoro(oxalato)borate; electrolyte additive; solid electrolyte interphase
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Lithium difluoro(oxalato) borate was investigated as a functional additive for non-aqueous electrolytes for lithium-ion batteries. It was found that the addition of small amount of lithium difluoro(oxalato) borate to the LiFP6-based electrolyte can significantly improve both the capacity retention and the power retention of lithium-ion cells. Unlike other additives, lithium difluoro(oxalato)borate only slightly increased the interfacial impedance of the cells, resulting in good initial power capability. Therefore, lithium difluoro(oxalato) borate is a promising additive for high-performance lithium-ion batteries for power applications, such as hybrid electrical vehicles. (c) 2006 Elsevier B.V. All rights reserved.
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