Lithium ion secondary battery

Details Lithium ion secondary battery Lithium ion secondary battery

Filed on

1997-12-03

Date issued

2000-09-26

Examiner

Maples, John S.

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

429338, 429326, H01M 1040

Type

Patent

Status

active

Patent number

061240613

Description

ABSTRACT:
To obtain a lithium ion secondary battery having excellent charge and discharge characteristics in which electric connection between electrodes can be maintained without requiring a strong armor metal case, so that it can be made into thin forms having large energy density. A positive electrode 3 prepared by bonding a positive electrode active material layer 7 to a positive electrode collector 6, a negative electrode 5 prepared by bonding a negative electrode active material layer 9 to a negative electrode collector 10 and a separator 4 which is arranged between these two electrodes and keeps a lithium ion-containing electrolytic solution are closely adhered by bonding the positive electrode active material layer 7 and the negative electrode active material layer 9 to the separator 4 by a porous adhesive resin layer 11, and an electrolytic solution is kept in through holes 12 formed in the adhesive resin layer 11, which communicate the positive electrode active material layer 7 and the negative electrode active material layer 9 with the separator 4.

REFERENCES:
patent: 5512389 (1996-04-01), Dasgupta et al.
patent: 5741609 (1998-04-01), Chen et al.

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