US 12,148,935 B2
Electrochemical device
Shigenori Onuma, Kyoto (JP); and Takashi Kakuwa, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on May 18, 2021, as Appl. No. 17/323,905.
Application 17/323,905 is a continuation of application No. PCT/JP2020/040477, filed on Oct. 28, 2020.
Claims priority of application No. 2019-218810 (JP), filed on Dec. 3, 2019; and application No. 2020-162801 (JP), filed on Sep. 29, 2020.
Prior Publication US 2021/0273237 A1, Sep. 2, 2021
Int. Cl. H01M 4/90 (2006.01); H01M 8/0206 (2016.01); H01M 8/021 (2016.01); H01M 8/0228 (2016.01)
CPC H01M 4/9041 (2013.01) [H01M 4/9016 (2013.01); H01M 8/0206 (2013.01); H01M 8/021 (2013.01); H01M 8/0228 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An electrochemical device, comprising:
an electrolyte membrane;
an anode disposed on a first main surface of the electrolyte membrane;
a cathode disposed on a second main surface of the electrolyte membrane;
an anode separator disposed on the anode; and
a cathode separator disposed on the cathode,
wherein at least one of the anode separator or the cathode separator includes a metal substrate sheet, a sheet made of stainless steel, and a conductive layer disposed on the sheet made of stainless steel and containing a metal oxide and a metal hydroxide,
wherein the sheet made of stainless steel is integrated with the metal substrate sheet by diffusion bonding, and
wherein the sheet made of stainless steel has a thickness of 0.1 to 0.5 mm and the metal substrate sheet has a thickness of 1.5 to 2 mm.