Aqueous dual-ion secondary battery

Patent metadata

Field	Value
Publication number	US-2019036173-A1
Application number	US-201816023149-A
Country	US
Kind code	A1
Filing date	Jun 29, 2018
Priority date	Jul 26, 2017
Publication date	Jan 31, 2019
Grant date	—

Abstract

Disclosed is a dual-ion secondary battery of high power and a high level of safety. The dual-ion secondary battery is an aqueous dual-ion secondary battery including: a cathode; an anode; and an aqueous electrolyte solution, wherein the cathode includes graphite as a cathode active material, the anode includes titanium oxide as an anode active material, and the aqueous electrolyte solution contains no less than 10 mol of lithium bis(trifluoromethanesulfonyl)imide per kilogram of water.

First claim

What is claimed is:

1 . An aqueous dual-ion secondary battery comprising:
a cathode; an anode; and an aqueous electrolyte solution, wherein the cathode includes graphite as a cathode active material, the anode includes titanium oxide as an anode active material, and the aqueous electrolyte solution contains no less than 10 mol of lithium bis(trifluoromethanesulfonyl)imide per kilogram of water.

Assignees

• Toyota Motor Co Ltd

Inventors

• Tojigamori Takeshi
• Nakayama Hideki

Classifications

• H01M4/587

  for inserting or intercalating light metals · CPC title

• H01M2300/0002

  Aqueous electrolytes · CPC title

• H01M10/36 Primary

  Accumulators not provided for in groups H01M10/05-H01M10/34 · CPC title

• H01M4/48

  of inorganic oxides or hydroxides · CPC title

• H01M10/38 Primary

  Construction or manufacture · CPC title