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thin battery

A battery and thin technology, which is applied in the direction of flat batteries, small flat batteries/batteries, battery pack components, etc., can solve the problem of unstable fixed state of secondary batteries, and achieve the effect of stable fixed state

Active Publication Date: 2015-11-25
ENVISION AESC JAPAN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the above-mentioned conventional secondary battery is a structure in which the outer peripheral sealing portion of the packaging member is inserted into the connecting groove of the frame member to couple the packaging member to the frame member (see “elastic connection” in paragraph 0041 of Patent Document 1 ), so there is a problem that the fixed state of the secondary battery is unstable due to vibration of the vehicle, etc.

Method used

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no. 1 Embodiment approach

[0031] figure 1 is a perspective view showing a completed state of a secondary battery according to an embodiment of the present invention, figure 2 It is an exploded perspective view showing a state in which the secondary battery is disassembled into main components. Such as figure 1 with figure 2 As shown, the secondary battery 1 of this example includes a thin and flat battery body 11 , a separator 12 , and an elastic resin portion 13 formed within a range including the battery body and the separator.

[0032] The battery main body 11 is formed by accommodating the power generating element 112 inside a pair of packaging members 111 made of laminated film and sealing the outer peripheral portions 113 of the pair of packaging members 111 . exist Figure 1 to Figure 4 , only one package member 111 is shown, Figure 5 A power generating element 112 is shown. Such as Figure 5 As shown in the cross-sectional view A of , the laminated film constituting the packaging memb...

no. 2 Embodiment approach

[0072] Figure 9 is a secondary battery according to another embodiment of the present invention, and is figure 1 A magnified view of the portion of , surrounded by dashed line IX. Figure 10 is a plan view of a secondary battery according to another embodiment of the present invention, Figure 11 yes Figure 10 Enlarged view of the portion surrounded by dashed line XI. This example differs from the above-described first embodiment in that a fragile portion 200 is provided. Since the configuration other than that is the same as that of the above-mentioned first embodiment, the description of the first embodiment is referred to.

[0073] The fragile portion 200 is provided on the elastic resin portion 13 formed on the outer peripheral portion of the sealing member 111 . The fragile portion 200 is formed by a notch 21 , and the notch 21 is cut into a V shape when viewed from the main surface of the secondary battery 1 . In addition, the notch portion 21 is formed in the el...

no. 3 Embodiment approach

[0087] Figure 17 is a secondary battery 1 according to another embodiment of the present invention, and is equivalent to Figure 10 Diagram of a magnified view of the portion surrounded by the dotted line XI. Figure 18 yes Figure 17 Sectional view of XVIII-XVIII. In this example, the structure of the fragile portion 200 is different from that of the second embodiment described above. Since the configuration other than that is the same as that of the first embodiment and the second embodiment, the descriptions of the first embodiment and the second embodiment are appropriately cited.

[0088] The fragile portion 200 is provided on the elastic resin portion 13 formed on the outer peripheral portion of the sealing member 111 . The weak part 200 is formed by the adhesion strength reduction part 23, and the adhesion strength reduction part 23 is formed in the band shape along this interface at the interface between the sealing member 111 and the elastic resin part 13. In ad...

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PUM

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Abstract

Within an outer cover member 111 of a laminated film including a resin layer 111c, there is installed an electricity generating element 112 thereby to constitute a battery body 11, a peripheral portion 113 of the outer cover member being sealed. There is provided a spacer 12 having a fixing portion 121 by which the battery body is fixed to a predetermined position, the spacer being arranged between an outer peripheral portion of the battery body and an outer peripheral portion of another battery body put on the battery body. In a range H1 that includes an overlapped portion 14 between the outer peripheral portion and the spacer and is provided at least around the fixing portion of the outer peripheral portion, there is provided an elastic resin portion 13 produced through an insert molding of an elastic resin. This thin battery exhibits a satisfied stability in set condition against vibration of a motor vehicle. This thin battery exhibits a satisfied fixing stability against a vehicle vibration or the like.

Description

technical field [0001] The present invention relates to a thin battery. Background technique [0002] There is known a thin secondary battery having a packaging member made of a laminated film, and a frame member made of plastic is installed around the packaging member, thereby improving the mechanical rigidity of the packaging member and the sealing performance around the packaging member (Patent Document 1). [0003] However, since the above-mentioned conventional secondary battery is a structure in which the outer peripheral sealing portion of the packaging member is inserted into the connecting groove of the frame member to couple the packaging member to the frame member (see “elastic connection” in paragraph 0041 of Patent Document 1 ), so there is a problem that the fixed state of the secondary battery is unstable due to vibration of the vehicle or the like. [0004] Prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Ope...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M50/105H01M50/119H01M50/121H01M50/129H01M50/136H01M50/178H01M50/211H01M50/227H01M50/236H01M50/242H01M50/278H01M50/282H01M50/291H01M50/55H01M50/557H01M50/562
CPCH01M2/0212H01M2/0207H01M2/021H01M2/0215H01M2/0277H01M2/0287H01M2/1061H01M2/1077H01M6/46H01M10/0436Y02E60/10H01M50/124Y02P70/50H01M50/178H01M50/278H01M50/236H01M50/562H01M50/129H01M50/105H01M50/119H01M50/211H01M50/557H01M50/282H01M50/291H01M50/55H01M50/242H01M50/227H01M50/121H01M50/136
Inventor 雨谷竜一轰木直人池添通则本桥季之长岛富雄
Owner ENVISION AESC JAPAN LTD