Secondary battery

Details Secondary battery Secondary battery

Filed on

1988-11-21

Date issued

1991-09-24

Examiner

Skapars, Anthony

Patent Class

Chemistry: electrical current producing apparatus, product, and

SubClass

Current producing cell, elements, subcombinations and...

SubSubClass

Include electrolyte chemically specified and method

Other Related Categories

429218, 429232, 2521821, H01M 1040

Type

Patent

Status

active

Patent number

050513257

Description

ABSTRACT:
A secondary battery comprised of a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the positive electrode comprises a sodium-cobalt oxide as the main component, the negative electrode is composed of a composite body comprising a sodium alloy such as a sodium/lead or sodium/tin alloy, a carbon material and a binder, and the non-aqueous electrolyte is composed of a sodium salt and an ether compound. The positive electrode and negative electrode is prepared by a process wherein a binder is swollen with or dissolved in an organic solvent, the swollen or dissolved binder is mixed with a carbon material, and the mixture is then mixed with a sodium alloy or a sodium-cobalt oxide directly or after removal of the organic solvent.

REFERENCES:
patent: 4301220 (1981-11-01), Evans
patent: 4668596 (1987-05-01), Shacklette et al.
patent: 4695521 (1987-09-01), Shacklette et al.
patent: 4737424 (1988-04-01), Tobishima et al.
patent: 4753858 (1988-06-01), Jow
patent: 4770959 (1988-09-01), Koyama et al.
patent: 4780381 (1988-10-01), Shacklette et al.
patent: 4804596 (1989-02-01), Ebner et al.
patent: 4818647 (1989-04-01), Plichta

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