Boosting the Lithium-Ion Conductivity in Li₇TaP₄ by Aliovalent Li versus Ta Substitution by Three Orders of Magnitude.

ABSTRACT: Lithium-ion conductors are one of the key features of all-solid-state lithium-ion batteries. To modify their properties and enable their implementation in high-performance devices, an understanding of the relationship between the crystal structure and the transport properties of the mobile species is important. Lithium phosphidotetrelates and -trielates are classes of lithium-ion conductors reaching ionic conductivities of up to 4.5 × 10^-3 cm^-1 at room temperature for ω-Li₉GaP₄. Here, we present the new lithium phosphidotantalate Li₇TaP₄, and the aliovalent substitution of Ta by Li atoms, which leads to a partial filling of octahedral voids in the structure of Li₇TaP₄. As a result, the lithium-ion condu

SUBMITTER: Merk S 

PROVIDER: S-EPMC12381850 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature