Electrolytic solution and electrochemical device

Patent metadata

Field	Value
Publication number	US-2017162908-A1
Application number	US-201515320350-A
Country	US
Kind code	A1
Filing date	Apr 20, 2015
Priority date	Jul 8, 2014
Publication date	Jun 8, 2017
Grant date	—

Abstract

An electrolytic solution includes a sulfone and a magnesium salt dissolved in the sulfone, in which the magnesium salt includes magnesium borohydride (Mg(BH 4 ) 2 ).

First claim

What is claimed is:

1 . An electrolytic solution comprising: a sulfone; and a magnesium salt dissolved in the sulfone,
the magnesium salt comprising magnesium borohydride.

2 . The electrolytic solution according to claim 1 , wherein the sulfone is an alkyl sulfone represented by R 1 R 2 SO 2 , wherein R 1 and R 2 each represent an alkyl group, or an alkyl sulfone derivative.

3 . The electrolytic solution that is for use in an electrochemical device according to claim 2 , wherein
the alkyl sulfone is at least one alkyl sulfone selected from the group consisting of dimethyl sulfone, methyl ethyl sulfone, methyl n-propyl sulfone, methyl isopropyl sulfone, methyl n-butyl sulfone, methyl isobutyl sulfone, methyl sec-butyl sulfone, methyl tert-butyl sulfone, ethyl methyl sulfone, diethyl sulfone, ethyl n-propyl sulfone, ethyl isopropyl sulfone, ethyl n-butyl sulfone, ethyl isobutyl sulfone, ethyl sec-butyl sulfone, ethyl tert-butyl sulfone, di-n-propyl sulfone, diisopropyl sulfone, n-propyl n-butyl sulfone, n-butyl ethyl sulfone, isobutyl ethyl sulfone, sec-butyl ethyl sulfone, and di-n-butyl sulfone, and the alkyl sulfone derivative is ethyl phenyl sulfone.

4 . An electrochemical device comprising an electrolytic solution,
the electrolytic solution comprising a sulfone and a magnesium salt dissolved in the sulfone, the magnesium salt comprising magnesium borohydride.

5 . The electrochemical device according to claim 4 , wherein the sulfone is an alkyl sulfone represented by R 1 R 2 SO 2 , wherein R 1 and R 2 each represent an alkyl group, or an alkyl sulfone derivative.

6 . The electrochemical device according to claim 5 , wherein
the alkyl sulfone is at least one alkyl sulfone selected from the group consisting of dimethyl sulfone, methyl ethyl sulfone, methyl n-propyl sulfone, methyl isopropyl sulfone, methyl n-butyl sulfone, methyl isobutyl sulfone, methyl sec-butyl sulfone, methyl tert-butyl sulfone, ethyl methyl sulfone, diethyl sulfone, ethyl n-propyl sulfone, ethyl isopropyl sulfone, ethyl n-butyl sulfone, ethyl isobutyl sulfone, ethyl sec-butyl sulfone, ethyl tert-butyl sulfone, di-n-propyl sulfone, diisopropyl sulfone, n-propyl n-butyl sulfone, n-butyl ethyl sulfone, isobutyl ethyl sulfone, sec-butyl ethyl sulfone, and di-n-butyl sulfone, and the alkyl sulfone derivative is ethyl phenyl sulfone.

7 . The electrochemical device according to claim 4 , which is a battery having an electrolyte layer comprising the electrolytic solution.

Assignees

• Sony Corp

Inventors

• Nakayama Yuri
• Matsumoto Ryuhei
• Kawasaki Hideki

Classifications

• H01G11/62

  characterised by the solute, e.g. salts, anions or cations therein · CPC title

• H01G9/15

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

• H01M10/0569 Primary

  characterised by the solvents · CPC title

• H01M6/166

  by the solute · CPC title

• H01M12/08

  composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type · CPC title