Rejuvenating a pouch type lithium ion battery involves introducing solvent into manifold and pouch to treat respective electrode assembly, removing solvent, introducing electrolyte into manifold and pouch, and sealing the pouch

摘要

Rejuvenating a pouch type lithium ion battery comprises providing pouch(es) (14A-C) sealably connected via first tubing to a first manifold (30A), where the pouch contains a first electrolyte and an electrode assembly, and is sealably connected against an external atmosphere; introducing a solvent into the first manifold and into the pouch to treat a respective electrode assembly contained within the pouch; removing a portion of the solvent from the pouch; introducing a second electrolyte into the first manifold and into the pouch; and sealing the pouch against the external atmosphere. An independent claim is included for a system for rejuvenating a pouch type lithium ion battery comprising pouches, and a solvent source and an electrolyte source.