Organic electrolytic solution and lithium battery using the...

Details Organic electrolytic solution and lithium battery using the... Organic electrolytic solution and lithium battery using the...

2007-05-15

2007-05-15

Kalafut, Stephen J. (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S329000, C429S330000, C429S331000, C429S332000

Reexamination Certificate

active

10754731

ABSTRACT:
An organic electrolytic solution includes a lithium salt and an organic solvent containing a phosphonate compound, and a lithium battery utilizes the organic electrolytic solution. When using the organic electrolyte containing the phosphonate compound to manufacture a lithium secondary battery, the lithium secondary battery has improved stability to reduction-induced decomposition, reduced first cycle irreversible capacity, and improved charging/discharging efficiency and lifespan. In addition, the lithium secondary battery does not swell beyond a predetermined thickness range after formation and standard charging at room temperature and has improved reliability. Even when the lithium secondary battery swells seriously at a high temperature, its capacity is high enough for practical applications. The capacity of the lithium secondary battery may substantially be recovered after being left at a high temperature.

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