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Electrolyte, electrolytic solution, gel electrolyte, electrolyte membrane, manufacturing method of gel electrolyte battery, and lithium ion secondary battery

A gel electrolyte and electrolyte technology, applied in the field of electrolytes, can solve the problems of thermal instability, high cost, easy hydrolysis, etc., and achieve the effects of full charge-discharge characteristics and excellent cycle life characteristics.

Inactive Publication Date: 2017-09-08
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, LiPF used in commercially available batteries 6 There are problems of thermal instability and easy hydrolysis. In addition, LiN(SO 2 CF 3 ) 2 There is a problem of high cost

Method used

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  • Electrolyte, electrolytic solution, gel electrolyte, electrolyte membrane, manufacturing method of gel electrolyte battery, and lithium ion secondary battery
  • Electrolyte, electrolytic solution, gel electrolyte, electrolyte membrane, manufacturing method of gel electrolyte battery, and lithium ion secondary battery
  • Electrolyte, electrolytic solution, gel electrolyte, electrolyte membrane, manufacturing method of gel electrolyte battery, and lithium ion secondary battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0150] Hereinafter, the present invention will be described in further detail through specific examples. However, the present invention is not limited at all by the Examples shown below.

[0151] (1) Chemical substances used

[0152] The chemical substances used in this example are shown below.

[0153] ・(A) Raw material of lithium salt of organic acid

[0154] Formic acid (manufactured by Aldrich)

[0155] Acetic acid (manufactured by Aldrich)

[0156] Propionic acid (manufactured by Aldrich)

[0157] Butyric acid (manufactured by Aldrich)

[0158] Isobutyric acid (manufactured by Aldrich)

[0159] Oxalic acid (manufactured by Wako Pure Chemical Industries, Ltd.)

[0160] Lithium oxalate (manufactured by Aldrich)

[0161] Succinic acid (manufactured by Aldrich)

[0162] Adipic acid (manufactured by Aldrich)

[0163] Lithium hydroxide monohydrate (LiOH·H 2 O) (manufactured by Aldrich Corporation)

[0164] ·(B) Boron compounds

[0165] Boron trifluoride diethyl ether...

Embodiment A1

[0204]

[0205] Measure the lithium acetate (0.182g) that obtains in above-mentioned (2-2) in sample bottle, BF 3 O(C 2 h 5 ) 2 (0.392g), a mixed solvent (EC:DMC=30:70 (volume ratio)) of EC and DMC as an organic solvent, mix and make the concentration of the lithium atom in lithium acetate be 1.0mol / kg, obtain thus electrolyte.

[0206]

[0207] A negative electrode (manufactured by Hosen Co., Ltd.) and a positive electrode (manufactured by Hosen Co., Ltd.) were punched out into a disc shape with a diameter of 16 mm. In addition, glass fibers were punched out into a disc shape with a diameter of 17 mm as a separator.

[0208] The obtained positive electrode, separator, and negative electrode were sequentially stacked in a SUS battery container (CR2032), and the electrolyte solution obtained above was impregnated into the separator, negative electrode, and positive electrode, and a SUS plate (thickness 1.2 mm, 16 mm in diameter) and capped to manufacture a coin-type ba...

Embodiment A2

[0210]

[0211] Measure lithium succinate (0.377g), BF obtained in the above (2-6) in the sample bottle 3 O(C 2 h 5 ) 2 (0.863g), the mixed solvent (EC:DMC=30:70 (volume ratio)) of EC and DMC as organic solvent, mix and make the concentration of the lithium atom in lithium succinate be 1.0mol / kg, by This yields an electrolyte solution.

[0212]

[0213] A coin-type battery was manufactured in the same manner as in Example A1 except that the electrolytic solution obtained in this example was used instead of the electrolytic solution obtained in Example A1.

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Abstract

The present invention relates to an electrolyte, an electrolytic solution, a gel electrolyte, an electrolyte membrane, a method for manufacturing a gel electrolyte battery, and a lithium-ion secondary battery. Electrolyte with excellent properties. In addition, a further object is to provide an electrolyte that has an ion conductivity equivalent to that of conventional electrolytes using lithium salts and that is also excellent in the mobility of lithium ions. The present invention relates to an electrolyte containing (A) a lithium salt of an organic acid and (B) a boron compound.

Description

technical field [0001] The present invention relates to an electrolyte, an electrolytic solution using the electrolyte, a gel electrolyte using the electrolytic solution, an electrolyte membrane, a method for manufacturing a gel electrolyte battery, and a lithium ion secondary battery. [0002] This application is based on Japanese Patent Application No. 2010-213775 filed in Japan on September 24, 2010, Japanese Patent Application No. 2011-47620 filed in Japan on March 4, 2011, and Japanese Patent Application No. 2011-47620 filed in Japan on May 31, 2011 Japanese Patent Application No. 2011-122453, Japanese Patent Application No. 2011-145438 filed in Japan on June 30, 2011, and Japanese Patent Application No. 2011-150146 filed on July 6, 2011 claim priority, and the contents quoted here. Background technique [0003] Lithium-ion secondary batteries have higher energy density and higher electromotive force than lead-acid batteries and nickel-hydrogen batteries, so they are w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0525H01M10/0565H01M10/0567H01M10/0568H01M10/0569H01M10/0585H01G11/26H01G11/46H01G11/52
CPCH01B1/122H01G11/26H01G11/46H01M4/485H01M4/505H01M4/525H01M4/587H01M10/0525H01M10/0567H01M10/0568H01M10/0569H01M10/0585H01M2300/0085H01G11/52H01G11/56H01M10/0565Y02E60/10Y02P70/50H01M10/058H01G9/025H01M2300/0025H01M2300/0028H01M2300/0082Y02E60/13
Inventor 新明健一今野义治加纳正史
Owner SEKISUI CHEM CO LTD
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