US 12,412,897 B2
Rechargeable battery and electrolysis method of making same
Donald R. Sadoway, Cambridge, MA (US); and Emilie Bodoin, Boston, MA (US)
Assigned to PURE LITHIUM CORPORATION, Charlestown, MA (US)
Filed by Pure Lithium Corporation, Charlestown, MA (US)
Filed on May 6, 2022, as Appl. No. 17/738,798.
Claims priority of provisional application 63/187,688, filed on May 12, 2021.
Prior Publication US 2022/0367849 A1, Nov. 17, 2022
Int. Cl. H01M 4/62 (2006.01); C25C 1/02 (2006.01); H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/137 (2010.01); H01M 10/0525 (2010.01); H01M 10/0565 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/62 (2013.01) [C25C 1/02 (2013.01); H01M 4/0402 (2013.01); H01M 4/134 (2013.01); H01M 4/137 (2013.01); H01M 10/0525 (2013.01); H01M 10/0565 (2013.01); H01M 2004/027 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A rechargeable battery comprising a lithium metal electrode,
wherein the lithium metal electrode comprises (i) a first layer of lithium metal adjacent to a first surface of a substrate, (ii) a second layer of lithium metal adjacent to a second surface of the substrate, and (iii) a lithium ion conductive polymer adjacent to the first layer of lithium metal and the second layer of lithium metal, wherein the first surface of the substrate is opposite to the second surface of the substrate, and wherein the first layer of lithium metal and the second layer of lithium metal are provided as a continuous layer of lithium metal,
wherein the lithium ion conductive polymer comprises a first domain and a second domain, wherein the first domain and the second domain are immiscible with one another,
wherein the first domain of the lithium ion conductive polymer is configured to solvate lithium ions and to provide one or more continuous conductive pathways for transport of the lithium ions, thereby selectively allowing the lithium ions to pass through the lithium ion conductive polymer, and wherein the second domain of the lithium ion conductive polymer is configured to prevent a solvent from passing through the lithium ion conductive polymer and contacting the layer of lithium metal, and
wherein the rechargeable battery is configured to maintain a charge-discharge capacity over at least 100 cycles when cycled with a potential window of 1.5 V.