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non-aqueous electrolyte battery

A non-aqueous electrolyte and battery technology, applied in the direction of non-aqueous electrolyte batteries, batteries, secondary batteries, etc., can solve the problems of increased battery size, failure to improve energy density, difficulty in controlling resin shape and thickness, and achieve the effect of inhibiting cracking

Active Publication Date: 2015-09-16
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the method described in Japanese Unexamined Patent Application Publication No. 2003-109667, it is difficult to control the shape and thickness of the resin, so there is a problem that the battery size will increase, and thus the energy density cannot be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 2 approach

[0032] 2. Second Embodiment (Example of Battery Device Having Another Configuration)

no. 3 approach

[0033] 3. Third embodiment (example in which a porous polymer layer is integrated into a gel electrolyte)

no. 4 approach

[0034] 4. Fourth Embodiment (Example of a battery pack and a battery module using a nonaqueous electrolyte battery according to an embodiment of the present invention)

[0035] 5. Other implementation modes (modified examples)

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Abstract

A non-aqueous electrolyte battery includes a battery device in which a positive electrode is faced to negative electrode through a separator; a non-aqueous electrolyte; a laminate film which is formed by laminating a metal layer, an outside resin layer formed in outer face of the metal layer, and an inside resin layer formed in the metal layer, and in which the battery device and the non-aqueous electrolyte is packaged by heat welding and housed; a positive electrode lead which is electrically connected to the positive electrode, and drawn from portion heat-welded of the laminate film to an exterior thereof; a negative electrode lead which is electrically connected to the negative electrode, and drawn from portion heat-welded of the laminate film to an exterior thereof; and a porous polymer layer containing, as a component, vinylidene fluoride formed between the laminate film and the battery device.

Description

technical field [0001] The present invention relates to a non-aqueous electrolyte battery, especially a large-capacity non-aqueous electrolyte battery manufactured by using a laminated film (laminated film, laminate film) as a packaging material. Background technique [0002] In recent years, many portable electronic devices such as camera-integrated video recorders (VTRs), mobile phones, and portable computers have appeared, and efforts have been made to achieve miniaturization and light weight thereof. Accordingly, regarding batteries, especially secondary batteries as portable power sources for such electronic appliances, development has been actively carried out. In particular, lithium ion secondary batteries capable of achieving high energy density have attracted attention. [0003] In recent years, smaller and lighter, and thinner batteries have been developed by using laminated films or the like instead of battery cases made of metals such as aluminum or iron, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/08H01M10/0525H01M50/119H01M50/121H01M50/129H01M50/133
CPCH01M2220/30H01M2/0287H01M2/026H01M10/05Y02E60/10H01M50/124Y02P70/50H01M50/133H01M50/121H01M50/129H01M50/119
Inventor 中村智之高林洋志林邦彦小西阳介牧野哲也
Owner MURATA MFG CO LTD