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Battery pack and manufacturing method therefor

A technology of battery components and batteries, which is applied to battery components, batteries, electrical components, etc., and can solve problems such as difficulty in improving the efficiency of assembly operations

Inactive Publication Date: 2012-05-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that it is difficult to improve the efficiency of assembly work

Method used

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  • Battery pack and manufacturing method therefor
  • Battery pack and manufacturing method therefor
  • Battery pack and manufacturing method therefor

Examples

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Embodiment Construction

[0018] Embodiments of the present invention will be described below with reference to the drawings. In addition, the following embodiment is an example which actualized this invention, and does not limit the technical scope of this invention.

[0019] figure 1 It is a perspective view showing the overall structure of the battery pack according to the embodiment of the present invention. figure 2 yes figure 1 The II-II line sectional view.

[0020] refer to figure 1 with figure 2 A battery pack 1 includes a thin plate-shaped battery 2 and an end surface (hereinafter referred to as an up-down direction) fixed to the battery 2 in a direction perpendicular to a thickness direction (hereinafter referred to as a left-right direction) (hereinafter referred to as a vertical direction). figure 1 Safety component 3 in above).

[0021] The battery 2 is a lithium ion battery. The battery 2 has a negative electrode 4 and a positive electrode 5 formed on the upward facing end face....

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PUM

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Abstract

Disclosed is a battery pack that has a safety member comprising a protection-circuit substrate (a printed circuit board) or the like. Said substrate is connected to a terminal of a battery via a connecting member. Conventional battery pack manufacturing has faced the issue that it is difficult to improve assembly efficiency when connecting a connecting member, disposed between a protection-circuit substrate and a battery, to both said substrate and said battery via welds. The disclosed battery pack solves that issue by providing the safety member in the battery pack with: a printed circuit board (6) that has wiring; plate leads (7 and 10), affixed to the printed circuit board (6), for electrically connecting the wiring on the printed circuit board (6) to both terminals (4 and 5) on the battery (2); and a screw (12) that screws onto the battery (2) and puts pressure on the plate leads (7 and 10), thereby holding the plate leads (7 and 10) in electrical contact with the terminals (4 and 5) on the battery (2).

Description

technical field [0001] The present invention relates to a battery pack equipped with a safety component that controls a circuit to suppress thermal runaway or internal short circuit when a cause such as overcharging or overdischarging is detected. Background technique [0002] In general, a battery pack including a battery and a safety component for suppressing thermal runaway or internal short circuit of the battery is known. The safety component includes a base plate and a connection component arranged between the base plate and the battery for electrically connecting the base plate with the poles of the battery. [0003] For example, Patent Document 1 discloses a battery pack comprising a bare cell (battery); a first electrode lead ( electrode lead), a second electrode lead (connecting member); and a protective circuit substrate (substrate) electrically connected to the bare cell via the first electrode lead and the second electrode lead. The first electrode lead and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/26H01M50/574
CPCY02E60/12H01M2/10H01M2/26H01M10/4257H01M2200/00Y10T29/49108Y10T29/4911Y02E60/10Y02P70/50H01M50/574H01M50/20H01M50/531
Inventor 大田晋志
Owner PANASONIC CORP
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