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battery module

A battery module and battery unit technology, applied to secondary batteries, battery pack components, battery boxes/coats, etc., can solve problems such as wiring disconnection, and achieve the effect of suppressing load

Active Publication Date: 2019-06-28
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, if the length of the wiring branched at the front end side of the binding member is insufficient, the wiring may be subjected to a load and cause problems such as disconnection.

Method used

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Embodiment Construction

[0026] Hereinafter, preferred embodiments of the battery module according to one aspect of the present invention will be described in detail with reference to the drawings.

[0027] figure 1 It is a perspective view showing a battery module according to an embodiment of the present invention. in addition, figure 2 Yes figure 1 Top view of the battery module shown. like figure 1 as well as figure 2 As shown, the battery module 1 includes: an arrangement body 2, which is formed by arranging a plurality of battery cells 11; a constraining member 3, which applies a constraining load to the arrangement body 2 along the direction in which the battery cells 11 are arranged; and an elastic body 4, which Interposed between the arrangement body 2 and the constraining member 3 .

[0028] The array body 2 is constituted by, for example, a plurality (here, seven) of battery cells 11 (referred to as 11A to 11G toward the elastic body 4 side). A heat conduction plate (not shown) is ...

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PUM

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Abstract

A battery module 1 is provided with: an array body 2 formed by arranging a plurality of battery cells 11; a plurality of wirings 41 extending along the array direction of the battery cells 11 in the array body 2, and the front ends are connected The terminal 45 is connected to the electrode terminal 17 of the predetermined battery cell 11; The wiring 41 branched from the binding member 42 has a bend between the connection positions 48 of the connection terminal 45 .

Description

technical field [0001] The present invention relates to battery modules. Background technique [0002] Conventionally, for example, a battery module in which a plurality of battery cells such as lithium ion secondary batteries are arranged is known. In the battery module described above, the array of battery cells is sandwiched by restraining members such as metal plates and restrained with a constant load, thereby suppressing characteristic fluctuations in the battery cells such as internal resistance. In the assembled battery described in Patent Document 1, for example, metal strips having bent portions at both ends are fixed to end plates, and the end plates constrain the battery blocks in the stacking direction. In such a battery module, an elastic body such as rubber may be interposed between the array body and the end plates of the restraining member for the purpose of preventing damage to the restraint member due to expansion of the battery cells. [0003] In additi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/20H01M2/10H01M10/48H01M50/176H01M50/209H01M50/507H01M50/531H01M50/55H01M50/553
CPCY02E60/10H01M50/502H01M50/553H01M50/55H01M50/176H01M50/507H01M50/209H01M50/531H01M50/256H01M10/0525
Inventor 山田正博植田浩生加藤崇行守作直人
Owner TOYOTA IND CORP