Title:
【発明の名称】積層型電池
Document Type and Number:
Japanese Patent JP3114719
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a battery that can seal an opening at a position near an electrode layered body while having a plurality of positive electrodes or negative electrodes, has high volume efficiency, and hardly has sealing failure, by providing a seal member with thermally fusing ability between the same polar current taking out leads that are adjacent to each other at a sealing part of thermally fusing exterior material. SOLUTION: At least either one of positive electrode or negative electrode is plural, current taking out leads are individually led out from each collector of the positive electrodes or the negative electrodes to the outside of a battery through a sealing part of thermally melting armor material. Two negative electrode collectors 5 are used, and negative electrode active material 4 is coated onto one surface. One positive electrode collector 1 is used, and positive electrode active material 2 is applied on both surfaces. A porous film separator 3 is placed between the negative electrode active material 4 and the positive electrode active material 2, and electrolyte is impregnated. Negative electrode leads 5a, 5b and positive electrode lead 1a are led out from an electrode layered body through the sealing part 8a of the thermally fusing exterior material 8. Even when the number of layers is large, crinkling or curtaining does not occur.
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Inventors:
Hiroshi Yageta
Yutaka Sakauchi
Yutaka Sakauchi
Application Number:
JP2497499A
Publication Date:
December 04, 2000
Filing Date:
February 02, 1999
Export Citation:
Assignee:
NEC
International Classes:
H01M10/05; H01M10/0585; H01M50/528; (IPC1-7): H01M2/30; H01M2/02; H01M2/06; H01M2/22; H01M10/40
Domestic Patent References:
| JP3225765A | ||||
| JP117921A | ||||
| JP10302738A | ||||
| JP9199175A | ||||
| JP1196991A | ||||
| JP1167167A | ||||
| JP10106531A | ||||
| JP5646174U | ||||
| JP55158169U |
Attorney, Agent or Firm:
Akira Yonezawa