Lithium ion secondary battery

Details Lithium ion secondary battery Lithium ion secondary battery

2006-10-03

2006-10-03

Barr, Michael (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S142000, C429S129000

Reexamination Certificate

active

07115339

ABSTRACT:
A lithium ion secondary battery comprising: a positive electrode, a negative electrode, a separator interposed between the positive and negative electrodes, and an electrolyte prepared by dissolving a lithium salt in a non-aqueous solvent, wherein the separator comprises a porous film layer containing basic solid particles and a composite binder, the porous film layer is adhered to at least one surface of at least one of the positive and negative electrodes, the composite binder comprises a primary binder and a secondary binder, the primary binder comprises polyether sulfone and the secondary binder comprises polyvinylpyrrolidone.

REFERENCES:
patent: 5882721 (1999-03-01), Delnick
patent: 5948464 (1999-09-01), Delnick
patent: 6846594 (2005-01-01), Kim et al.
patent: 2002/0076619 (2002-06-01), Yamada et al.
patent: 2005/0014063 (2005-01-01), Shi et al.
patent: 07-220759 (1995-08-01), None
patent: 10-106530 (1998-04-01), None

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