Electrolyte solution for electrochemical devices, aluminum electrolytic capacitor, and electric double layer capacitor

US9583272B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9583272-B2
Application numberUS-201314385326-A
CountryUS
Kind codeB2
Filing dateFeb 8, 2013
Priority dateMar 29, 2012
Publication dateFeb 28, 2017
Grant dateFeb 28, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present invention aims to provide an electrolyte solution for electrochemical devices, which has excellent thermal stability and high decomposition voltage and produces a small amount of evaporation at high temperatures. The present invention also aims to provide an aluminum electrolytic capacitor and an electric double layer capacitor, both of which include the electrolyte solution for electrochemical devices. The present invention relates to an electrolyte solution for electrochemical devices, the electrolyte solution including a solvent and an electrolyte, the solvent containing a sulfone compound represented by the formula (1): wherein R represents a C 1-6 alkyl group.

First claim

Opening claim text (preview).

The invention claimed is: 1. An electrolyte solution for electrochemical devices, the electrolyte solution comprising: a solvent; and an electrolyte, the solvent being a mixed solvent comprising sulfolane and a sulfone compound represented by the formula (1): wherein R represents a C 1-6 alkyl group. 2. The electrolyte solution for electrochemical devices according to claim 1 , wherein the R in the formula (1) represents a methyl group, ethyl group, n-propyl group, or isopropyl group. 3. The electrolyte solution for electrochemical devices according to claim 1 , wherein the solvent contains 10 to 70% by mass of the sulfone compound represented by the formula (1). 4. An aluminum electrolytic capacitor comprising the electrolyte solution for electrochemical devices according to claim 1 . 5. An electric double layer capacitor comprising the electrolyte solution for electrochemical devices according to claim 1 .

Assignees

Inventors

Classifications

  • Liquid electrolytic capacitors (H01G11/00 takes precedence) · CPC title

  • H01G9/035Primary

    Liquid electrolytes, e.g. impregnating materials (H01G11/54 takes precedence) · CPC title

  • characterised by the solvent · CPC title

  • Energy storage using capacitors · CPC title

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Frequently asked questions

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What does patent US9583272B2 cover?
The present invention aims to provide an electrolyte solution for electrochemical devices, which has excellent thermal stability and high decomposition voltage and produces a small amount of evaporation at high temperatures. The present invention also aims to provide an aluminum electrolytic capacitor and an electric double layer capacitor, both of which include the electrolyte solution for ele…
Who is the assignee on this patent?
Sumitomo Seika Chemicals
What technology area does this patent fall under?
Primary CPC classification H01G9/035. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Feb 28 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).