Enhancment of Cycling Performance and Rate Capability of Li3v2(Po4)3 Cathode Material by Doping Ca2+ and Sr2+ Cations

• DOI: 10.2139/ssrn.5087129
• Publication Date: 2025-01-08T13:13:51Z
• Authors: M. Tahernejadjavazm; M. Hasheminiasari; S.M. Masoudpanah; H. Nasripour; T. Sarkar; B. Aslibeiki
• Keywords: Cycling

Li3V2(PO4)3 (LVP) is a potential cathode material for lithium-ion batteries (LIBs) because of its elevated theoretical capacity and high operational voltage. The low electronic ionic conductivities LVP will lead to sluggish charge discharge kinetics, resulting in diminished rate reduced at rates. Herein, we synthesized (Li3V2-xCax(PO4)3) LVCaP/C (Li3V2-xSrx(PO4)3) LVSrP/C cathodes by incorporating Ca2+ Sr2+ within the crystal lattice attain efficient highly stable storage. introduction significantly contributes structure enhances conductivity. Li3V1.97Ca0.03(PO4)3 exhibited an exceptional specific 124 mAh g−1 3.0-4.3 V vs. Li/Li+, 158 3.0-4.8 substantial retention 96.62% over 5000 cycles 10 C Li/Li+. Furthermore, Li3V1.97Sr0.03(PO4)3 showed remarkable improvements cycling stability. Sr-doped had 116.8 154 with 91.66% after range doping offers strategy developing high-performance characterized improved