Invention Grant
- Patent Title: Redox flow battery
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Application No.: US15286650Application Date: 2016-10-06
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Publication No.: US10707509B2Publication Date: 2020-07-07
- Inventor: Toshikazu Shishikura , Hiroshi Kobayashi
- Applicant: SHOWA DENKO K.K.
- Applicant Address: JP Tokyo
- Assignee: SHOWA DENKO K.K.
- Current Assignee: SHOWA DENKO K.K.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7fee792c
- Main IPC: H01M8/08
- IPC: H01M8/08 ; H01M4/92 ; H01M4/90 ; H01M8/0254 ; H01M8/18 ; H01M8/20

Abstract:
Provided in the present invention is a redox flow battery including a positive electrode, a negative electrode and a separation membrane, wherein a positive electrode electrolyte composed of an aqueous solution containing vanadium ions is supplied into a positive electrode chamber, and a negative electrode electrolyte composed of an aqueous solution containing vanadium ions is supplied into a negative electrode chamber, to carry out charging and discharging of the battery. In the redox flow battery, zirconium or titanium coated with a noble metal or a compound thereof is used as a positive electrode material, and when the positive electrode material is zirconium coated with a noble metal or a compound thereof, the positive electrode electrolyte and the negative electrode electrolyte contain sulfuric acid; and when the positive electrode material is titanium coated with a noble metal or a compound thereof, the positive electrode electrolyte contains nitric acid.
Public/Granted literature
- US20170025698A1 REDOX FLOW BATTERY Public/Granted day:2017-01-26
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