US 12,113,211 B2
High energy density molten lithium-selenium batteries with solid electrolyte
Yang Jin, Zhengzhou (CN); Kai Liu, Beijing (CN); and Jialiang Lang, Fushun (CN)
Assigned to MetaGenesis, Ltd., Sunnyvale, CA (US)
Appl. No. 17/418,424
Filed by MetaGenesis, Ltd., Sunnyvale, CA (US)
PCT Filed Dec. 13, 2019, PCT No. PCT/CN2019/125336
§ 371(c)(1), (2) Date Jun. 25, 2021,
PCT Pub. No. WO2020/135111, PCT Pub. Date Jul. 2, 2020.
Prior Publication US 2022/0077459 A1, Mar. 10, 2022
Int. Cl. H01M 4/36 (2006.01); C01G 35/00 (2006.01); H01M 4/38 (2006.01); H01M 4/40 (2006.01); H01M 4/62 (2006.01); H01M 4/70 (2006.01); H01M 10/04 (2006.01); H01M 10/052 (2010.01); H01M 10/0562 (2010.01); H01M 10/39 (2006.01)
CPC H01M 4/368 (2013.01) [C01G 35/006 (2013.01); H01M 4/382 (2013.01); H01M 4/405 (2013.01); H01M 4/625 (2013.01); H01M 4/70 (2013.01); H01M 10/0422 (2013.01); H01M 10/052 (2013.01); H01M 10/0562 (2013.01); H01M 10/39 (2013.01); C01P 2004/03 (2013.01); C01P 2006/40 (2013.01); H01M 2300/0077 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electrochemical cell, comprising:
an anode comprising lithium metal or a lithium alloy;
a cathode comprising selenium; and
a solid electrolyte positioned between the anode and the cathode, wherein the solid electrolyte is capable of conducting lithium ions, and
a cathode current collector electrically connected with the cathode,
wherein at operating temperatures, the lithium metal or the lithium alloy is molten, the selenium is molten, and the solid electrolyte remains solid,
wherein the solid electrolyte comprises a garnet-type oxide, and the garnet-type oxide comprises Li7−xLa3Zr2−xTaxO12 wherein x is from 0.1 to 1.0, and
wherein the solid electrolyte is in a form of a tube and the anode is disposed within the tube, and the cathode current collector is in the form of a cylinder outside the tube, and the cathode is disposed between the tube and the cylinder.