US 12,215,431 B2
Processing and recycling method and product of ultrathin lithium foil
Huiqiao Li, Hubei (CN); Mingtao Hu, Hubei (CN); and Tianyou Zhai, Hubei (CN)
Assigned to HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Hubei (CN)
Filed by HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Hubei (CN)
Filed on Sep. 6, 2024, as Appl. No. 18/826,224.
Application 18/826,224 is a continuation of application No. PCT/CN2022/137856, filed on Dec. 9, 2022.
Claims priority of application No. 202210224380.1 (CN), filed on Mar. 7, 2022.
Prior Publication US 2024/0425989 A1, Dec. 26, 2024
Int. Cl. C23F 1/14 (2006.01); C01D 7/06 (2006.01); C01D 15/08 (2006.01); C22B 3/20 (2006.01); C22B 26/12 (2006.01); H01M 4/1395 (2010.01); H01M 4/02 (2006.01); H01M 4/134 (2010.01)
CPC C23F 1/14 (2013.01) [C01D 7/06 (2013.01); C01D 15/08 (2013.01); C22B 3/205 (2013.01); C22B 26/12 (2013.01); H01M 4/1395 (2013.01); H01M 2004/027 (2013.01); H01M 4/134 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for processing and recycling an ultrathin lithium foil, comprising thinning a thick lithium foil, specifically, using a liquid-phase thinning agent to perform a contact reaction with a lithium metal, and further thinning the lithium foil through corrosion of metal lithium by the liquid-phase thinning agent to fabricate ultrathin lithium with a thickness of less than 20 μm, wherein
the liquid-phase thinning agent comprises a complexing agent and an organic solvent, the complexing agent is dissolved in the organic solvent, and the complexing agent is selected from one or more of naphthalene and derivatives thereof, biphenyl and derivatives thereof, anthracene and derivatives thereof, phenanthrene and derivatives thereof, pyrene and derivatives thereof, and tetracene and derivatives thereof.