US 11,715,849 B2
Methods for cathode recycling of end-of-life lithium batteries
Kyusung Park, Greenwood Village, CO (US); and Anthony Keiran Burrell, Golden, CO (US)
Assigned to Alliance for Sustainable Energy, LLC, Golden, CO (US)
Filed by Alliance for Sustainable Energy, LLC, Golden, CO (US)
Filed on Nov. 2, 2020, as Appl. No. 17/87,468.
Claims priority of provisional application 62/929,546, filed on Nov. 1, 2019.
Prior Publication US 2021/0226273 A1, Jul. 22, 2021
Int. Cl. H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/54 (2006.01); H01M 10/0525 (2010.01); H01M 4/62 (2006.01); H01M 10/42 (2006.01); H01M 4/38 (2006.01); B01D 11/02 (2006.01)
CPC H01M 10/54 (2013.01) [B01D 11/0203 (2013.01); H01M 4/382 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/622 (2013.01); H01M 10/0525 (2013.01); H01M 10/4242 (2013.01); H01M 10/4285 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for recycling lithium cathode from a battery comprising contacting a lithium cathode comprising a binder with a quinone-based redox mediator wherein the method further comprises the step of a Soxhlet extraction process to remove the binder from the lithium cathode and wherein the Soxhlet extraction process comprises a condenser that is cooled to a temperature of less than negative 100° C.