Battery container, film-packed battery, and methods for their manufacture
A technology of battery container and manufacturing method, which is applied in the direction of secondary battery, final product manufacturing, battery pack parts, etc., can solve the problems of electrolyte leakage, electrode component deterioration, etc., and achieve volume reduction, compact battery, and light weight Effect
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no. 1 Embodiment ＞
[0072] figure 1 The battery container 10 of the present embodiment shown accommodates the battery element 5 and becomes figure 2 The film-packed battery 20 of the present embodiment is shown. The film-packed battery 20 of this embodiment is a secondary battery, an electric double layer capacitor, or the like.
[0073] The film-packed battery 20 of this embodiment accommodates a battery element 5 including a positive electrode plate, a negative electrode plate, a separator, and an electrolytic solution inside the battery container 10 . In addition, the battery element 5 is a battery element including all elements necessary for charging / discharging including an electrolyte.
[0074] In the film-packaged battery 20 of the present embodiment, the positive electrode lead and the negative electrode lead electrically connected to the positive and negative electrode plates protrude from the battery container 10 in directions opposite to each other. Lead wires are installed on the ...
no. 2 Embodiment ＞
[0155] Such as Figure 13 As shown, the battery container 10 of this embodiment differs from the battery container 10 of the first embodiment only in the following point: the length of the lower end surface of the plate body 2 is formed shorter than the length of the upper end surface. In this embodiment, the side end surface of the plate body 2 is inclined at an acute angle relative to the upper end surface. Therefore, compared with the first embodiment, the bending angle of the end wall 42 relative to the bottom surface 41 or the lead clamping portion 44 is smaller. Therefore, the battery container 10 of this embodiment is suitable for the case where a highly rigid stainless steel foil is used as a barrier layer in the laminated film 1 or the cover material 3 . In addition, since the opening of the container main body 4 is wider than the bottom portion 41 , the operability is good when housing the battery element 5 .
[0156] Hereinafter, only the differences between the ba...
no. 3 Embodiment ＞
[0170] Such as Figure 20 As shown, the difference between this embodiment and the first embodiment is that when forming the battery container 10 , the plate body 2 has end wall reinforcing plates 2h, 2h extending inwardly on both side end surfaces, respectively. In this embodiment, the side end surfaces of the plate body 2 are reinforced with the end wall 42 by the end wall reinforcing plates 2h, 2h, so the shape retention of the battery container 10 is high.
[0171] Hereinafter, only the differences between the battery container 10 of the present embodiment and the battery container 10 of the first embodiment will be described.
[0172] Such as Figure 20 As shown in (a), the battery container 10 of this embodiment is equipped with end wall reinforcing plates 2h, 2h on both side end surfaces of the plate body 2, and the main surface of the plate body 2 is welded to the welded layer of the side wall 43 of the container main body 4. . The side end surface of the plate body...
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Abstract
Description
Claims
Application Information
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