Type of non-aqueous electrolyte

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method

Reexamination Certificate

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C429S300000, C429S303000

Reexamination Certificate

active

07732093

ABSTRACT:
This invention relates to non-aqueous electrolytes, in particular, a non-aqueous electrolyte for lithium-ion secondary batteries. The electrolyte comprises regular organic solvents and electrolyte saline. The special characteristics are: the electrolyte also comprises mixed additives, said mixed additives comprising at least one of those of compound group A, at least one of those of compound group B, and one of those of compound group C wherein: compound group A are selected from inorganic saline including Li2CO3, Li2SO4, Li2SO3, LiNO3; compound group B are selected from vinylene carbonate, propylene carbonate; and compound group C are selected from ES, PS, DMS, DES, DMSO. The weight ratio can be A:B:C=0.1%-3.0%:0.5%-4.0%:1.0%-5.0%.

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patent: 2004/0062995 (2004-04-01), Yanagida et al.
patent: 2004/0091786 (2004-05-01), Unoki et al.
patent: 2005/0106470 (2005-05-01), Yoon et al.

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