US 11,990,612 B2
Protected zinc metal electrodes and methods for rechargeable zinc cells and batteries
Brian D. Adams, Dartmouth (CA); and Marine B. Cuisinier, Dartmouth (CA)
Assigned to Salient Energy Inc., Dartmouth (CA)
Appl. No. 17/268,312
Filed by Salient Energy Inc., Dartmouth (CA)
PCT Filed Aug. 14, 2019, PCT No. PCT/CA2019/051110
§ 371(c)(1), (2) Date Feb. 12, 2021,
PCT Pub. No. WO2020/034035, PCT Pub. Date Feb. 20, 2020.
Claims priority of provisional application 62/718,712, filed on Aug. 14, 2018.
Prior Publication US 2021/0320295 A1, Oct. 14, 2021
Int. Cl. H01M 4/00 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/42 (2006.01); H01M 4/62 (2006.01); H01M 10/36 (2010.01); H01M 10/44 (2006.01); H01M 4/02 (2006.01)
CPC H01M 4/42 (2013.01) [H01M 4/0409 (2013.01); H01M 4/0419 (2013.01); H01M 4/366 (2013.01); H01M 4/623 (2013.01); H01M 10/36 (2013.01); H01M 10/44 (2013.01); H01M 2004/027 (2013.01); H01M 2300/0002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrochemical cell for use in a rechargeable battery, the electrochemical cell comprising:
a protected negative electrode;
a positive electrode;
an aqueous electrolyte with a pH of less than or equal to 7;
wherein the protected negative electrode comprises:
active material comprising zinc metal; and
a protective structure in physical continuity with the active material, wherein the protective structure comprises one or more layers, and wherein each layer comprises:
a solid electrolyte component forming a continuous Zn2+ ion-conducting network throughout the layer;
wherein the protective structure forms an impervious barrier to the aqueous electrolyte when arranged in the electrochemical cell and conducts Zn2+ ions from the aqueous electrolyte.