Nanoscaled LiMn₂O₄ for Extended Cycling Stability in the 3 V Plateau.

ABSTRACT: Extending the potential window toward the 3 V plateau below the typically used range could boost the effective capacity of LiMn₂O₄ spinel cathodes. This usually leads to an "overdischarge" of the cathode, which can cause severe material damage due to manganese dissolution into the electrolyte and a critical volume expansion (induced by Jahn-Teller distortions). As those factors determine the stability and cycling lifetime for all-solid-state batteries, the operational window of LiMn₂O₄ is usually limited to 3.5-4.5 V versus Li/Li⁺ in common battery cells. However, it has been reported that nano-shaped particles and thin films can potentially mitigate these detrimental effects. We demonstrate here that porous LiMn₂O₄

SUBMITTER: Siller V 

PROVIDER: S-EPMC9335525 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature