US 11,670,753 B2
Cathode for metal-air battery including spaces for accommodating metal oxides formed during discharge of metal-air battery and metal-air battery including the same
Heungchan Lee, Seongnam-si (KR); Dongmin Im, Seoul (KR); and Hyunpyo Lee, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Dec. 14, 2020, as Appl. No. 17/120,684.
Application 17/120,684 is a division of application No. 15/795,841, filed on Oct. 27, 2017, granted, now 10,916,762.
Claims priority of application No. 10-2016-0144480 (KR), filed on Nov. 1, 2016; and application No. 10-2017-0121876 (KR), filed on Sep. 21, 2017.
Prior Publication US 2021/0135186 A1, May 6, 2021
Int. Cl. H01M 4/13 (2010.01); H01M 4/96 (2006.01); H01M 4/86 (2006.01); H01M 12/08 (2006.01); H01M 4/02 (2006.01)
CPC H01M 4/13 (2013.01) [H01M 4/8626 (2013.01); H01M 4/96 (2013.01); H01M 12/08 (2013.01); H01M 2004/028 (2013.01); Y02E 60/10 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A cathode for a metal-air battery, the cathode comprising:
a cathode layer comprising a cathode material including at least one selected from carbon black, graphite, graphene, activated carbon, carbon fiber and carbon nanotubes;
a plurality of holes vertically defined through the cathode layer; and
a plurality of electrolyte films disposed on inner walls of the cathode layer, which define the plurality of holes,
wherein a plurality of spaces, which are not occupied by the plurality of electrolyte films and surrounded by the plurality of electrolyte films, are defined in the plurality of holes, and
wherein the plurality of holes is spaced apart from each other by a predetermined distance.