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Nonaqueous electrolyte composition and nonaqueous electrolyte secondary battery

A non-aqueous electrolyte, secondary battery technology, applied in non-aqueous electrolyte secondary battery manufacturing, non-aqueous electrolyte secondary battery, non-aqueous electrolyte field, can solve the problems of loss of battery function, battery short circuit, increased deformation, etc. The effect of improving the withstand voltage

Inactive Publication Date: 2011-08-03
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, recent demands for greater capacity have forced the use of simple outer packaging, increasing the chance of greater deformation, and the possibility of short circuits in the battery, with possible loss of battery function as a result

Method used

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  • Nonaqueous electrolyte composition and nonaqueous electrolyte secondary battery
  • Nonaqueous electrolyte composition and nonaqueous electrolyte secondary battery
  • Nonaqueous electrolyte composition and nonaqueous electrolyte secondary battery

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0017] 1. First embodiment (an example of non-aqueous electrolyte)

no. 2 approach

[0018] 2. Second embodiment (an example of a non-aqueous electrolyte secondary battery)

no. 3 approach

[0019] 3. Third embodiment (an example of a method of manufacturing a non-aqueous electrolyte secondary battery)

[0020] 1. The first embodiment

[0021] In the first embodiment, a nonaqueous electrolyte according to the present invention is described in detail.

[0022] [Structure of non-aqueous electrolyte]

[0023] The nonaqueous electrolyte composition of an embodiment of the present invention includes an electrolyte salt, a nonaqueous solvent, a matrix polymer, and predetermined ceramic powder, and is suitable for use as a nonaqueous electrolyte for a lithium ion nonaqueous electrolyte secondary battery. In this embodiment of the present invention, a ceramic material having a thermal conductivity of 50 W / m°C or higher is used as the predetermined ceramic powder.

[0024] The nonaqueous electrolyte composition is formed as a gel electrolyte layer, which is prepared, for example, by applying to the surfaces of positive and negative electrodes, and drying the composition ...

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Abstract

The present invention relates to a nonaqueous electrolyte composition and a nonaqueous electrolyte secondary battery. More especially, the invention relates to a nonaqueous electrolyte composition including: an electrolyte salt; a nonaqueous solvent; a matrix polymer; and a ceramic powder having a thermal conductivity of 50 W / m DEG C. or more.

Description

technical field [0001] The present invention relates to a nonaqueous electrolyte, a nonaqueous electrolyte secondary battery, and a method for manufacturing the nonaqueous electrolyte secondary battery. Specifically, the present invention relates to a non-aqueous electrolyte composition disposed in contact with at least one of a positive electrode and a negative electrode, and comprising a non-aqueous solvent, an electrolyte salt, a matrix polymer, and ceramic powder, and to a Non-aqueous electrolyte secondary battery. Background technique [0002] With the advent of various portable electronic devices, efforts have been made to reduce the size and weight of these devices. This trend can also be seen in batteries used as power sources for portable electronic devices, requiring either the size of the batteries themselves to be reduced, or the storage space in the portable electronic device to be used more efficiently for further reductions in the size and weight of the porta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/056H01M10/05H01M10/42
CPCH01M10/4235Y02E60/122H01M10/0565H01M10/0525H01M4/621Y02E60/10Y02P70/50H01M2220/30H01M2300/0085H01M2300/0094
Inventor 町田昌纪
Owner SONY CORP