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Electrolyte, battery using same and method of use of same, and electrolyte production method

A manufacturing method and electrolyte technology, which is applied in the field of electrolytes, can solve the problems of not obtaining gel products, achieve good ionic conductivity, excellent electrical performance, and suppress the reduction of ionic conductivity

Inactive Publication Date: 2012-04-04
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no gel product was obtained

Method used

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  • Electrolyte, battery using same and method of use of same, and electrolyte production method
  • Electrolyte, battery using same and method of use of same, and electrolyte production method
  • Electrolyte, battery using same and method of use of same, and electrolyte production method

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Experimental program
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Effect test

Embodiment approach

[0078] An electrolyte related to one embodiment of the present invention is a solid electrolyte used in an electrochemical device such as a battery or the like, which contains carbon clusters and an electrolyte salt.

[0079] First, carbon clusters and electrolyte salts used to form the electrolytes described below will be discussed.

[0080] [Carbon cluster]

[0081] A "carbon cluster" refers to a substance having carbon atoms as a main element, and tens to hundreds of atoms bonded together, or a substance formed by the bonds formed by agglomeration or crystallization.

[0082] The reason why the electrolyte contains carbon clusters is that, unlike polymers containing polyethylene oxide or ethylene oxide, which cause cation movement due to the segmental movement of the polymer chain, ionic conductivity can be maintained at low temperatures.

[0083] Examples of such carbon clusters include spherical structures, basket structures, planar structures, cylindrical structures, an...

Embodiment 1-1

[0157] : Preparation of electrolyte by dry mixing method

[0158] As the carbon clusters of Example 1-1, Example 1-2, and Example 1-3 described below, fullerene oxide was used to prepare the above-mentioned electrolyte according to the first structure.

[0159] First, fullerene oxides were synthesized. In this case, the 300cm 3 C as a fullerene 60 (manufactured by Frontier Carbon Corporation, nanon purple, with a purity of 99% or more) in toluene (1 mmol / dm 3 ) is placed in a three-necked bottle equipped with a thermometer, and the three-necked bottle is heated to 80°C by an oil bath. After that, ozone gas (concentration: 30g / m 3 ) at 1.0dm 3 / min flow rate into the three-necked flask. Bubble the toluene solution for 300 seconds and thereby perform the oxidation C 60 Reaction. At this point, the temperature of the reacted toluene solution was lowered to about 71°C to 73°C.

[0160] Next, nitrogen gas was introduced into the three-necked bottle over 300 seconds, and th...

Embodiment 1-2 and 1-3

[0163] : Preparation of electrolyte by dry mixing method

[0164] The process was performed in a similar manner to Example 1-1, except that the molar ratio M1 / M2 was 1 / 2 (Example 1-2) or 1 / 4 (Example 1-3) instead of 1 / 1.

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Abstract

Disclosed are an electrolyte that has good ion conductivity at low temperatures, a battery using the same and a method of use of the same, and an electrolyte production method. A solid electrolyte (16) is disposed between a positive electrode (14) and a negative electrode (15). The electrolyte (16) is formed from an electrolyte salt, such as a lithium salt, carbon clusters, such as fullerenes, an organic solvent, such as acetone, and a liquid that is polar and causes ion dissociation of a polar electrolyte salt, such as EMITFSI (1-ethyl-3-methylimidazolium bis(trifluoromethansulfonyl)imide) or other ionic liquid.

Description

technical field [0001] The present invention relates to electrolytes containing electrolyte salts, batteries using the electrolytes, methods of using them, and methods of producing the electrolytes. Background technique [0002] In recent years, portable electronic devices such as camera-integrated video tape recorders (VTR), mobile phones or notebook personal computers have been widely popularized, and reducing their size and weight and realizing their long lifespan have become urgent demands. Accompanying this demand, batteries, particularly secondary batteries that are lightweight and capable of obtaining high energy density have been developed as power sources for portable electronic devices. Among them, a secondary battery utilizing the occlusion and release of lithium as an electrode reaction substance in the charge-discharge reaction (that is, a lithium-ion secondary battery) has received great attention because such a secondary battery can obtain Higher energy densi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0567H01M6/16H01M6/18H01M6/22H01M10/052H01M10/054H01M10/0565H01M10/0568H01M10/0569H01M10/058
CPCH01M10/0567H01M6/166H01M2/022Y02E60/122H01M10/0565H01M6/22H01M10/0568H01M10/052H01M6/168H01M50/107Y02E60/10Y02P70/50
Inventor 武志一正守冈宏之
Owner SONY CORP
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