Organic electrolytic solution and lithium-sulfur battery...

Details Organic electrolytic solution and lithium-sulfur battery... Organic electrolytic solution and lithium-sulfur battery...

2008-03-04

2008-03-04

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S326000, C252S062200, C568S013000, C568S014000

Reexamination Certificate

active

10927188

ABSTRACT:
An organic electrolytic solution for a lithium-sulfur battery that can improve discharge capacity and cycle life of the battery, and a lithium-sulfur battery using the organic electrolytic solution are provided. The electrolytic solution includes a lithium salt, an organic solvent, and further a phosphine sulfide-based compound represented by formula (I) below:wherein R1, R2and R3are the same or different from each other, and each represents one selected from the group consisting of a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C1-C30 alkoxy group and a substituted or unsubstituted C8-C30 aralkenyl group. The electrolytic solution including the phosphine sulfide-based compound represented by Formula (I) can suppress production of lithium sulfides so that a reduction in battery capacity can be prevented.

REFERENCES:
patent: 5523179 (1996-06-01), Chu
patent: 5532077 (1996-07-01), Chu
patent: 5814420 (1998-09-01), Chu
patent: 5961672 (1999-10-01), Skotheim et al.
patent: 6030720 (2000-02-01), Chu et al.
patent: 2004119260 (2004-08-01), None

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