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Method and device for manufacturing layered cell and layered cell

A manufacturing method and battery technology, which are applied in the manufacture of secondary batteries, small-sized batteries/batteries, and electrode manufacturing, can solve problems such as difficult continuous production methods, and achieve the effects of excellent productivity and excellent manufacturing characteristics

Active Publication Date: 2016-01-27
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when manufacturing a secondary battery using a gel electrolyte, there is a problem that it is difficult to manufacture by a continuous production method as described above.

Method used

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  • Method and device for manufacturing layered cell and layered cell
  • Method and device for manufacturing layered cell and layered cell
  • Method and device for manufacturing layered cell and layered cell

Examples

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Embodiment Construction

[0081] Hereinafter, embodiments of the method and apparatus for manufacturing a laminated battery according to the present invention, and the laminated battery obtained therefrom will be described with reference to the drawings. In addition, in this embodiment, a lithium ion secondary battery is mentioned as a laminated battery, and it demonstrates below.

[0082]

[0083] figure 1 is a cross-sectional view showing a lithium-ion secondary battery (laminated battery) manufactured by a manufacturing method according to an embodiment of the present invention, figure 2 yes figure 1 A plan view of the lithium-ion secondary battery shown.

[0084] Such as figure 1 As shown, the multilayer membrane electrode assembly 10 included in the lithium ion secondary battery (laminated battery) produced by the production method of this embodiment has positive electrode plates (electrode plates) 2a and negative electrode plates (electrode plates) 3a alternately layered. The terminal tab ...

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PUM

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Abstract

Provided is a method for manufacturing a layered cell including: a step for forming a membrane electrode assembly having a porous layer structure, said assembly being obtained by having an electrolyte layer disposed between a positive electrode plate and a negative electrode plate; a tab-mounting step for joining, on an outer packaging, terminal tabs on end parts of the positive electrode plate and the negative electrode plate in the membrane electrode assembly; and a step for covering the membrane electrode assembly with the outer packaging; wherein the method for manufacturing a layered cell is characterized in that, in the tab-mounting step, after at least a portion of an end part of the outer packaging has bent toward a side opposite the side facing the membrane electrode assembly, the terminal tabs are joined to the end parts of the positive electrode plate and the negative electrode plate disposed correspondingly with respect to the bent portion of the end part of the outer packaging.

Description

technical field [0001] The present invention relates to a method and apparatus for producing a laminated battery used for lithium ion secondary batteries and the like, and a laminated battery obtained therefrom. [0002] this application claims priority based on Japanese Patent Application No. 2013-243191 for which it applied in Japan on November 25, 2013, and uses the content here. Background technique [0003] Lithium-ion secondary batteries have higher energy density and electromotive force than lead storage batteries or nickel-metal hydride batteries, so they are widely used as power sources for various portable devices and notebook computers that require miniaturization and weight reduction. Such a lithium ion secondary battery is usually laminated with a separator coated on a positive electrode current collector with a positive electrode active material and a negative electrode plate with a negative electrode active material coated on a negative electrode current colle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M2/02H01M2/26H01M2/30H01M10/0565H01M10/0585H01M50/119H01M50/176H01M50/55H01M50/557H01M50/562H01M50/566
CPCH01M10/0565H01M4/0407H01M4/0409H01M10/0404H01M10/052H01M10/0585Y02E60/10H01M50/557Y02P70/50H01M50/562H01M50/55H01M50/176H01M50/566H01M50/119
Inventor 瓶子克加纳正史野上光秀小川浩
Owner SEKISUI CHEM CO LTD
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