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Battery component and battery component assembly using the battery component

A technology for battery components and single cells, applied in the direction of primary cells to battery groups, battery pack components, electrical components, etc., can solve problems such as unusability and unfavorable miniaturization of battery components.

Inactive Publication Date: 2011-12-28
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a configuration is also detrimental to the miniaturization of the battery pack.
In addition, the evaporation temperature of the fluorine-based inert liquid is 400°C, so it cannot be used in, for example, lithium-ion batteries.

Method used

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  • Battery component and battery component assembly using the battery component
  • Battery component and battery component assembly using the battery component
  • Battery component and battery component assembly using the battery component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0046] figure 1 It is a longitudinal cross-sectional view of a cylindrical single cell constituting a battery cell of the battery module according to Embodiment 1 of the present invention. The single cell 45 has the electrode group 4 . The electrode group 4 is formed by winding a positive electrode 1 and a negative electrode 2 facing the positive electrode 1 through a separator 3 . A lead 8 made of, for example, aluminum (Al) is connected to the positive electrode 1 . The negative electrode 2 is connected to, for example, a lead 9 made of copper.

[0047] The electrode group 4 is inserted into the case 5 with the insulating plates 10 a and 10 b mounted on the upper and lower sides of the electrode group 4 . The ends of the lead wires 8 are welded to the sealing plate 6 , and the ends of the lead wires 9 are welded to the bottom of the case 5 . Furthermore, a non-aqueous electrolyte (not shown) that conducts lithium ions is injected into the case 5 . That is, the non-aqueo...

Embodiment approach 2

[0076] For the battery pack according to Embodiment 2 of the present invention, using 7A to 10B Explain in detail. Figure 7A is a perspective view of the battery pack of the present embodiment, Figure 7B Yes Figure 7A The 6B-6B line cross-sectional view. Figure 8 It is an exploded perspective view of the battery pack. Figure 9A , Figure 9B A perspective view and a top view of the battery cells used in the battery pack. Figure 10A It is a cross-sectional view illustrating a state in which abnormal heat generation occurs in one of the battery cells in the battery pack, Figure 10B Yes Figure 10A An enlarged cross-sectional view of section 9B.

[0077] like Figure 7B , Figure 8 As shown, a plurality of storage portions 234 are provided on the casing 230 of the battery pack 200 through the partition wall 232 , and the battery cells 240 are housed in each storage portion 234 . In this point, the battery pack 200 is different from the battery pack 100 of the fir...

Embodiment approach 3

[0103] Hereinafter, the battery module assembly in Embodiment 3 of the present invention is used Figure 14A , Figure 14B Explain in detail. Figure 14A , Figure 14B It is a perspective view of the battery module assembly in this embodiment.

[0104] Figure 14A The battery pack assembly 300 shown in the figure is constructed by arranging four battery packs 200 of the second embodiment in parallel and connecting them by a connecting member 350 . also, Figure 14B The battery module assembly 400 shown in the figure is constructed by arranging two battery modules 200 in parallel, and vertically overlapping the parallel body in two stages and connecting them with a connecting member 450 . That is, the battery pack assemblies 300 and 400 are configured by connecting the plurality of battery packs 200 in parallel, in series, or in a combination of the series and in parallel via the connection members 350 and 450 .

[0105] In this way, by arbitrarily combining the battery m...

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PUM

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Abstract

A battery module includes a battery unit, a housing, a lid, and a heat-absorbing member. The battery unit includes two or more battery cells. The housing includes a storage part having an open end on at least one surface, and the storage part stores the battery unit. The lid has an opened part, and covers the open end of the housing. The heat-absorbing member is provided in contact with each side surface of each battery unit, and encloses heat-absorbing agent made of liquid or gel fluid.

Description

technical field [0001] The present invention relates to a battery pack and a battery pack assembly using the battery pack. In the battery pack, even if one of a plurality of single cells constituting a battery unit generates heat or the like, the surrounding batteries are not affected. single battery. Background technique [0002] In recent years, there has been an increasing demand for reusable secondary batteries such as nickel-metal hydride storage batteries, nickel-cadmium storage batteries, and lithium-ion batteries from the viewpoint of resource saving and energy saving. Among them, lithium-ion batteries are characterized by light weight, high electromotive force, and high energy density. Therefore, there is an increasing demand as a power source for driving various portable electronic devices such as cellular phones, digital cameras, video cameras, and notebook computers, and mobile communication devices. [0003] On the other hand, in order to reduce the use of fos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/20H01M2/26H01M10/50H01M10/60H01M10/613H01M10/6235H01M10/625H01M10/6555H01M10/659H01M50/213H01M50/227H01M50/271H01M50/289H01M50/291H01M50/293H01M50/51H01M50/512H01M50/522H01M50/524
CPCH01M10/5016H01M10/5079H01M10/052H01M2/1016H01M6/42H01M10/5034Y02T10/7011H01M10/503H01M10/5004H01M2/202H01M10/625H01M10/6569H01M10/65H01M10/643H01M10/613Y02E60/10H01M50/293H01M50/522H01M50/213H01M50/512H01M50/51H01M50/291H01M50/227H01M50/524H01M50/271H01M50/289
Inventor 安井俊介中岛琢也
Owner PANASONIC CORP
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