Boosting Lithium Storage Capability of Li+-Conductor LiInGeO4 through Intrinsic and Extrinsic Conductivity Optimization

Abstract

Olivine-structured LiInGeO₄, a Li⁺ conductor isotypic with LiFePO₄ and originally intended as solid electrolyte, is purposed as a highcapacity conversion-alloying anode. Its poor electronic conductivity is regulated by synergistic Ru doping and conformal graphene hybridization. The anode delivers 1058.8 mAh g^-1 after 100 cycles at 0.1 A g^-1 and 412.8 mAh g^-1 at 10 A g^-1 , establishing a new paradigm for fast-charging anodes derived from Li⁺-conducting materials.