Square-shaped sealed secondary battery and method of manufacturing same

A technology for rechargeable batteries and manufacturing methods, applied in the direction of secondary battery manufacturing, non-aqueous electrolyte storage batteries, secondary batteries, etc., to achieve the effects of increased capacity, high output, and easy manufacturing reliability

Active Publication Date: 2014-04-30
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The present invention was developed to solve the problems of the conventional prismatic rechargeable batteries as described above.

Method used

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  • Square-shaped sealed secondary battery and method of manufacturing same
  • Square-shaped sealed secondary battery and method of manufacturing same
  • Square-shaped sealed secondary battery and method of manufacturing same

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Embodiment Construction

[0060] Hereinafter, the form for implementing this invention is demonstrated using drawing. Although, in the embodiment shown below, the prismatic non-aqueous electrolyte rechargeable battery provided with the flat-shaped wound electrode body is illustrated as a prismatic sealed rechargeable battery for realizing the technical idea of ​​the present invention, but the intention is not to limit the present invention. The present invention can also be applied to such a prismatic non-aqueous electrolyte rechargeable battery in a similar manner to a structure in which various modifications are made without departing from the technical idea shown in the claims.

[0061] First, a prismatic non-aqueous electrolyte rechargeable battery according to the present embodiment will be described with reference to the drawings. In this prismatic non-aqueous electrolyte rechargeable battery 10 , a flat wound electrode body 11 formed by winding a positive electrode plate and a negative electrode...

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Abstract

[Problem] To provide a square-shaped sealed secondary battery comprising a metallic battery outer casing whereby insertability of an electrode insertion body into the metallic battery outer casing at time of manufacture is improved and misalignment and damage to an insulation member is alleviated at time of insertion. [Solution] With this square-shaped sealed secondary battery, an insulation member which covers the electrode body is a box shape with a bottom which is a shape in which the upper face is removed from faces of a hexahedron having an approximately cuboid shape. The width of at least a pair of lateral faces which oppose one another in the insulation member is narrower than the width of the electrode body which the pair of lateral faces opposes.

Description

technical field [0001] The present invention relates to a prismatic sealed rechargeable battery, and more particularly to a prismatic sealed rechargeable battery including an electrode body housed in an insulating member and a metal prismatic outer casing, and a method for manufacturing the same. Background technique [0002] Lithium-ion rechargeable batteries, Rechargeable batteries such as Ni-MH rechargeable batteries. [0003] Among the above-mentioned rechargeable batteries, especially when space efficiency is required, demand for a square battery is higher than that for a cylindrical battery. In addition, when physical strength is required, a metal case is generally used as an exterior body of the battery. [0004] A prismatic sealed rechargeable battery, such as a prismatic non-aqueous electrolyte rechargeable battery, is produced in the following manner. That is, a negative electrode plate is produced by applying a negative electrode active material mixture contain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/14H01M2/02H01M10/04H01M50/103H01M50/119H01M50/121H01M50/124H01M50/133
CPCH01M10/0587H01M2/02H01M2/0217H01M2/14H01M10/0431H01M2/024H01M50/119H01M50/103H01M50/121H01M50/133H01M50/124H01M10/052Y10T29/4911Y02E60/10Y02P70/50
Inventor 服部高幸山内康弘能间俊之
Owner SANYO ELECTRIC CO LTD
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