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Battery module

A battery module, battery technology, applied in the direction of batteries, battery pack components, circuits, etc., can solve the problem of low impact strength and achieve excellent productivity

Active Publication Date: 2016-03-02
NEC ENERGY DEVICES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The film-covered battery disclosed in Patent Document 1 is lower in strength against impact than a battery housed in a case such as aluminum, which may have a large thickness

Method used

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Examples

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Embodiment Construction

[0028] figure 1 is a view illustrating an example of a film-covered battery used in the present invention. The film-covered battery 100 is covered with a film covering member in which a film having high weather resistance is stacked on its outer surface side and a heat-weldable film is laminated on its inner surface side. For example, a film with high weather resistance such as a polyamide film or a polyethylene terephthalate film is stacked on the outer surface side of the aluminum foil, and a heat-weldable synthetic resin such as a polyethylene film A film is laminated on its inner surface side.

[0029] The film-covered battery accommodates battery elements, electrolytes, etc. in the battery element case 110 of the film covering member, and the positive electrode lead-out piece 120 and the negative electrode lead-out piece 130 are drawn out of the film cover member.

[0030] As the battery element, a battery element obtained by laminating a positive electrode supporting a...

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Abstract

The invention aims to provide a film-coated battery and a battery module that are resistant to external impact. A battery module having a frame mounted on a peripheral section of a film-coated battery, having a protruding section provided in the frame, and having an edge section mounted as a result of the protruding section.

Description

technical field [0001] The present invention relates to a battery module and a battery pack including a secondary battery and an electric vehicle mounted with the battery pack. Background technique [0002] As a power source for vehicles such as electric cars, electric motorcycles, or power-assisted bicycles or as a power source for use in houses or buildings, battery modules or battery packs containing secondary batteries are available, and can be used in batteries Various types of secondary batteries are used in modules or battery packs. Among various types, lithium ion batteries are preferably used, which are excellent in both mass and volumetric energy density and provide high voltage per cell. [0003] Lithium ion batteries include: a wound type obtained by winding a stack of a strip-shaped positive electrode and negative electrode via a separator in a roll shape; and a stacked type obtained by stacking flat plate positive electrodes and negative electrodes via a separ...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M50/211H01M50/227H01M50/242H01M50/244H01M50/262H01M50/55H01M50/557
CPCY02E60/10H01M50/557H01M50/24H01M50/55H01M50/242H01M50/227H01M50/244H01M50/211H01M50/262H01M2220/20
Inventor 小宫祯广
Owner NEC ENERGY DEVICES LTD
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