リチウムイオン電池リサイクル方法

Japanese Patent JP7253538

B2

It is provided a process for recycling lithium ion batteries comprising shredding the lithium-ion batteries and immersing residues in an organic solvent; feeding the shredded batteries residues in a dryer producing a gaseous organic phase and dried batteries residues; feeding the dried batteries residues to a magnetic separator removing magnetic particles; grinding the non-magnetic batteries residues; mixing the fine particles and an acid producing a metal oxides slurry and leaching said metal oxides slurry; filtering the leachate removing the non-leachable metals; feeding the leachate into a sulfide precipitation tank; neutralizing the leachate; mixing the leachate with an organic extraction solvent; separating cobalt and manganese from the leachate using solvent extraction and electrolysis; crystallizing sodium sulfate from the aqueous phase; adding sodium carbonate to the liquor and heating up the sodium carbonate and the liquor producing a precipitate of lithium carbonate; and drying and recuperating the lithium carbonate.

Moran, Dominique
Gagne-Burg, Charles
Nado, Emily
Couture, Benoit

JP2020518637A

April 06, 2023

September 27, 2018

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Recycle Rage Retion Incorporated

C22B7/00; C22B3/08; C22B3/22; C22B3/26; C22B3/44; C22B26/12; C30B29/22; H01M10/54

JP2017115179A
JP2014162982A
JP11242967A

EP2450991A1
US7192564
CN1965438A
WO2017159743A1

TONG Dongge et al.,Recycling of LiCoO2 cathode materials from spent lithium ion batteries,Journal of Chemical Industry and Engineering (China),中国,2005年10月,vol. 56, no. 10,1967-1970
Christian Ekberg et al.,Lithium Batteries Recycling,Lithium Process Chemistry,NL,Elsevier,2015年,233-267

Osamu Yamamoto
Toru Miyamae
Motoharu Nakanishi
Hiroaki Noya

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