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Packed cell

A battery and electrode technology, applied in the field of battery packs, can solve the problems of safety valve damage and deformation of insulating material 95

Inactive Publication Date: 2004-05-26
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This situation is as figure 2 As shown, the synthetic resin in the molten state injected into the molding chamber of the mold forming the resin molding part deforms the insulating material 95 as well, thereby causing damage to the safety valve 96.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0099] image 3 The resin molded part 1 is bonded to the safety valve opening surface 20 of the opening part 9 of the safety valve 8. In the battery pack shown in the figure, the protective element 4 is inserted into the resin molded part 1 and molded. Although not shown in the figure, a circuit board on which a protection circuit is mounted or a circuit board on which an output terminal is fixed may be inserted into the resin molded part. In the assembled battery in the figure, since the opening 9 of the safety valve 8 is provided on the battery end surface having the protruding electrode 2B, the resin molded part is fixed on this surface. However, the opening of the safety valve may be provided on the battery end surface facing the battery end surface having the protruding electrode, and the resin molded part may be fixed there. Although not shown in the figure, the thin battery can also be provided with an opening of a safety valve on both sides of the narrow width, and t...

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PUM

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Abstract

The battery 2 of the battery pack is temporarily held in a mold 30 to form a molded resin region 1 , synthetic resin injected into the mold cavity 31 to form the molded resin region 1 attaches to the battery 2 , and the molded resin region 1 attaches to a safety valve opening surface 20 established at the battery safety valve opening region 9 . Further, insulating material 15 is attached at the interface between the battery safety valve opening surface 20 and the molded resin region 1 in a position which closes off the safety valve opening region 9.

Description

technical field [0001] The present invention relates to a battery pack in which a core assembly is inserted into a resin molded part, that is, the battery is temporarily fixed in a mold for molding the resin molded part, and then the resin molded part is bonded to the resin molded part through the molding process of the resin molded part. Made on the battery. Background technique [0002] The existing pack battery is assembled after packing into a core assembly formed by connecting the necessary parts of the battery in an outer packaging box formed of plastic. The assembled battery with such a structure needs to be assembled while the core assembly is put into the outer packaging box and fixed in a fixed position, so the manufacturing process is very labor-intensive. In response to this problem, a pack battery that does not use an outer box is currently being developed. This pack type battery is manufactured by inserting the core assembly of the battery when forming a resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/14H01M6/50H01M50/574H01M50/583
CPCY02E60/12H01M2/12H01M2/348H01M2/34H01M2/08H01M2200/106H01M2/1066Y02E60/10H01M50/30H01M50/581H01M50/574H01M50/583H01M50/20
Inventor 河端胜彦渡部厚司中正嗣久保田启
Owner SANYO ELECTRIC CO LTD