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non-aqueous electrolyte battery

A non-aqueous electrolyte and battery technology, applied in the direction of non-aqueous electrolyte batteries, electrolytes, battery electrodes, etc., can solve the problem of low temperature cycle characteristics and achieve the effect of suppressing the generation of gas

Active Publication Date: 2016-06-15
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, JP-A-2008-186792 discloses that a cycloalkylbenzene compound and / or a compound having a quaternary carbon adjacent to the benzene ring acts so that the reduction in high-temperature cycle characteristics is suppressed by adding lithium carbonate, whereby the high-temperature cycle Features are dramatically improved

Method used

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no. 1 approach

[0027] 1. First embodiment (first embodiment of non-aqueous electrolyte battery)

no. 2 approach

[0028] 2. Second embodiment (second embodiment of non-aqueous electrolyte battery)

no. 3 approach

[0029] 3. Third embodiment (third embodiment of non-aqueous electrolyte battery)

[0030] 4. Other embodiments (modified examples)

[0031] 1. The first embodiment:

[0032] (The structure of the battery)

[0033] By reference figure 1 with figure 2 The non-aqueous electrolyte battery according to the first embodiment of the present invention will be described. figure 1 The cross-sectional configuration of the non-aqueous electrolyte battery according to the first embodiment of the present invention is shown. figure 2 Zoomed in figure 1 A part of the wound electrode body 20 shown. The non-aqueous electrolyte battery is, for example, a non-aqueous electrolyte secondary battery capable of withstanding charge and discharge, and is a lithium ion secondary battery in which the capacity of the negative electrode 22 is expressed based on insertion and extraction of lithium as an electrode reactant.

[0034] This non-aqueous electrolyte battery is mainly in which a wound electrode body 20 in...

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Abstract

A nonaqueous electrolyte battery includes: a positive electrode, a negative electrode, and a nonaqueous electrolyte, wherein the positive electrode contains, as a positive electrode active material, a positive electrode material having a surface composition represented by the following formula (I); the nonaqueous electrolyte contains a halogenated carbonate represented by any of the following formulae (1) to (2) and an alkylbenzene represented by the following formula (3); a content of the halogenated carbonate is 0.1% by mass or more and not more than 50% by mass relative to the nonaqueous electrolyte; and a content of the alkylbenzene is 0.1% by mass or more and not more than 5% by mass relative to the nonaqueous electrolyte

Description

Technical field [0001] The invention relates to a non-aqueous electrolyte battery. In more detail, the present invention relates to a non-aqueous electrolyte battery using a non-aqueous electrolyte containing an organic solvent and an electrolyte salt. Background technique [0002] In recent years, portable electronic devices such as camera-integrated VTRs (Video Tape Recorders), mobile phones, and laptop PCs (Personal Computers) have been widely popularized, and there is a strong need to achieve their miniaturization, weight reduction, and long life. Along with this, the development of batteries as power sources of portable electronic devices, particularly secondary batteries that are lightweight and capable of obtaining high energy density, such as lithium ion secondary batteries, is being promoted. [0003] In the field of such lithium ion secondary batteries, research for improving battery characteristics such as cycle characteristics and battery capacity has been actively con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/05H01M10/0568
CPCH01M4/131H01M4/366H01M4/525H01M10/0525H01M10/0567H01M10/0569H01M2300/004Y02E60/10
Inventor 小谷徹山口晃宫本昌泰洼田忠彦
Owner MURATA MFG CO LTD
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