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Assembled battery formed by stacking a plurality of flat cells

A battery pack, flat shape technology, applied in the direction of battery pack parts, circuits, electrical components, etc., can solve the problem of not being able to accommodate the battery pack, and achieve the effects of improving the buffering effect, preventing dislocation, and promoting heat dissipation

Active Publication Date: 2009-07-22
GS YUASA INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since such a battery pack is too wide in the left and right directions, there is a problem that the battery pack cannot be accommodated in a limited small space.

Method used

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  • Assembled battery formed by stacking a plurality of flat cells
  • Assembled battery formed by stacking a plurality of flat cells
  • Assembled battery formed by stacking a plurality of flat cells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Example 1, such as figure 1 with figure 2 As shown, two rod-shaped spacers 2 are arranged between opposing flat surfaces 1 c of adjacent non-aqueous electrolyte secondary batteries 1 stacked up and down (an embodiment of the second aspect of the present invention). These spacers 2 are square pillars with approximately the same length as the front and rear distances of the flat surfaces 1c of the non-aqueous electrolyte secondary battery 1, and are arranged at the left and right ends between the opposing flat surfaces 1c. Each spacer 2 may be formed of a hard resin molded product or the like, but is preferably formed of an elastic body such as rubber. In addition, each spacer 2 is preferably adhered to the flat surface 1c using a double-sided adhesive tape, an adhesive, or the like, so that the positions are not easily shifted.

[0082] In addition, in the non-aqueous electrolyte secondary battery 1 shown in Example 1, the left and right widths of the battery pack ar...

Embodiment 2

[0089] Example 2, such as Figure 4 with Figure 5 As shown in FIG. 1 , a case is shown in which a frame-shaped spacer 4 is disposed between opposing side end portions 1 b of adjacent non-aqueous electrolyte secondary batteries 1 stacked up and down (an embodiment of the third aspect of the present invention). One frame-shaped spacer 4 is used for each of the right side end portion 1b and the left side end portion 1b. These spacers 4 are frame bodies made of resin thin plates manufactured by resin molding, and are composed of an upper support portion 4a and a lower support portion 4b. The upper support portion 4a is a portion where a resin sheet is bent into a concave shape to support the downward one side end portion 1b and the front and rear end portions 1b of the nonaqueous electrolyte secondary battery 1 adjacent above. The lower support portion 4b is a portion where a resin sheet is bent into a concave shape to support the upward one side end portion 1b and the front an...

Embodiment 3

[0094] Example 3, such as Image 6 with Figure 7 As shown, the spacer 5 is arranged between the opposing flat surfaces 1c and the side ends 1b (both left and right) of adjacent non-aqueous electrolyte secondary batteries 1 stacked up and down (fourth aspect of the present invention). aspect example). The spacer 5 has a plate shape manufactured by resin molding, and has battery support portions 5a formed at both left and right end portions. The battery support portion 5a is a portion where both end portions of the spacer 5 protrude in the vertical direction.

[0095] The battery support portion 5 a is a portion bent and formed in a concave shape to support the side end portions 1 b of the non-aqueous electrolyte secondary batteries 1 adjacent up and down. In addition, these battery support portions 5a are provided with substantially triangular triangular holes 5b penetrating in the front-rear direction. In addition, in the non-aqueous electrolyte secondary battery 1 shown ...

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PUM

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Abstract

There is provided an assembled battery in which a plurality of flat cells having battery containers using a flexible film are vertically stacked by opposing the flat surfaces to each other. The assembled battery has a spacer disposed between the adjacent cells.

Description

technical field [0001] The present invention relates to a battery pack in which a plurality of flat batteries having battery containers using flexible films are laminated. Background technique [0002] Figure 11 A structural example of a conventional flat non-aqueous electrolyte secondary battery 1 having a battery container using an aluminum laminate film is shown. [0003] The aluminum laminated film refers to a film structure in which a resin layer is provided on at least one side of an aluminum foil. This aluminum laminated film is a so-called flexible film that bends easily with a little force, unlike hard materials such as aluminum plates, iron plates, and nickel plates used in cylindrical or square battery case metal cans. [0004] This non-aqueous electrolyte secondary battery 1 has a structure in which a flat power generating element (electricity storage element) 12 is accommodated in a battery container composed of two square aluminum laminated films 11 . These ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M50/211H01M50/227H01M50/242H01M50/293
CPCY02E60/12H01M2/1061H01M2/1077Y02E60/10H01M50/293H01M50/242H01M50/227H01M50/211
Inventor 根本圣治望月智匡下园武司铃木勋胸永训良平田稔中本武志伊藤瞬
Owner GS YUASA INT LTD
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