biostudies-literatureUnknown64(33)Merk SBayerische Staatsministerium f?r Wirtschaft, Landesentwicklung und EnergieLithium-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 conduInorganic chemistry16902-16911https://www.ebi.ac.uk/biostudies/studies/S-EPMC12381850biostudies-literatureBoosting the Lithium-Ion Conductivity in Li<sub>7</sub>TaP<sub>4</sub> by Aliovalent Li versus Ta Substitution by Three Orders of Magnitude.PMC12381850Fassler TFBaran VKollmannsberger SSenyshyn AMerk SZeitz SfalseBoosting the Lithium-Ion Conductivity in Li<sub>7</sub>TaP<sub>4</sub> by Aliovalent Li versus Ta Substitution by Three Orders of Magnitude.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 condu2025-01-01T00:00:00Z2025 Aug2026-05-10T04:37:25.761Z2026-04-08T01:30:04.501ZS-EPMC123818504078904910.1021/acs.inorgchem.5c02167