Thermal Stability and Outgassing Behaviors of High-nickel Cathodes in Lithium-ion Batteries,Angewandte Chemie International Edition

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Thermal Stability and Outgassing Behaviors of High-nickel Cathodes in Lithium-ion Batteries
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2023-06-09 , DOI: 10.1002/anie.202307243
Zehao Cui ₁ , Arumugam Manthiram ₁

Affiliation

Thermal stability and outgassing as two critical safety metrics of high-nickel layered oxide cathodes are summarized from a chemical perspective. Thermal decomposition of high-Ni cathodes starts with ion migration, phase transition, and oxygen release, and ends up with electrolyte combustion. Gas evolution originates from the chemical decomposition of surface lithium carbonate residues and electrolytes under the attack of oxygen from the cathode.

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