Synergy of cations in high entropy oxide lithium ion battery anode.

ABSTRACT: High entropy oxides (HEOs) with chemically disordered multi-cation structure attract intensive interest as negative electrode materials for battery applications. The outstanding electrochemical performance has been attributed to the high-entropy stabilization and the so-called 'cocktail effect'. However, the configurational entropy of the HEO, which is thermodynamically only metastable at room-temperature, is insufficient to drive the structural reversibility during conversion-type battery reaction, and the 'cocktail effect' has not been explained thus far. This work unveils the multi-cations synergy of the HEO Mg_0.2Co_0.2Ni_0.2Cu_0.2Zn_0.2O at atomic and nanoscale during electrochemical reaction and explains the 'cocktail effect'. The mor

SUBMITTER: Wang K 

PROVIDER: S-EPMC10023782 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature