Li-storage of Li2ZnTi3O8@C-N anodes with high-performance in a wide temperature range

Abstract

Spinel Li 2 ZnTi 3 O 8 (LZTO) with a zero volumetric change, exhibits high safety as an anode of lithium-ion batteries. Nevertheless, the low electrical conductivity restricts its wide application. A facile one-step solidstate route has been used to synthesize LZTO@C-N composites with different N content. The existence of N-doped carbon improves the diffusion coe cients of Li + ions and the electronic conductivity, and reduces the charge-transfer resistance and the side reactions between electrolyte and LZTO.