Methods and Devices for Electrochemical Relithiation of Lithium-Ion Batteries

Kandler Smith (Inventor), Shriram Santhanagopalan (Inventor), Nathaniel Sunderlin (Inventor), Andrew Colclasure (Inventor), Chunmei Ban (Inventor), Xuemin Li (Inventor), Judy Netter (Inventor), Donal Finegan (Inventor), Kaitlin Fink (Inventor), Jaclyn Coyle (Inventor)

Research output: Patent


Among other things, the present disclosure relates to re-purposing used lithium-ion batteries. The present disclosure includes treating an electrode using a solvent prior to electrochemically relithiating the electrode. In some embodiments, the relithiation may be done using a roll-to-roll device, wherein the electrode may be secured on a first pin and a second pin, then it may be unwound and submerged in an electrolyte solution. Lithium ions may be inserted into the electrode using a voltage. The layer of lithium may provide lithium ions to the electrode.
Original languageAmerican English
Patent number11,870,044 B2
Filing date9/01/24
StatePublished - 2024

NREL Publication Number

  • NREL/PT-5700-88535


  • electrode relithiation
  • electrolyte solution
  • ketone
  • solvent


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