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Environmentally‐Friendly Lithium Recycling From a Spent Organic Li‐Ion Battery
Author(s) -
Renault Stéven,
Brandell Daniel,
Edström Kristina
Publication year - 2014
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201402440
Subject(s) - environmentally friendly , electrolyte , lithium (medication) , thermal decomposition , battery (electricity) , lithium battery , imide , dimethyl carbonate , inorganic chemistry , decomposition , lithium ion battery , chemistry , materials science , lithium carbonate , electrode , chemical engineering , organic chemistry , ion , ionic bonding , methanol , medicine , ecology , power (physics) , physics , quantum mechanics , engineering , biology , endocrinology
A simple and straightforward method using non‐polluting solvents and a single thermal treatment step at moderate temperature was investigated as an environmentally‐friendly process to recycle lithium from organic electrode materials for secondary lithium batteries. This method, highly dependent on the choice of electrolyte, gives up to 99 % of sustained capacity for the recycled materials used in a second life‐cycle battery when compared with the original. The best results were obtained using a dimethyl carbonate/lithium bis(trifluoromethane sulfonyl) imide electrolyte that does not decompose in presence of water. The process implies a thermal decomposition step at a moderate temperature of the extracted organic material into lithium carbonate, which is then used as a lithiation agent for the preparation of fresh electrode material without loss of lithium.