A Stable Core-Shell Si@SiO_x/C Anode Produced via the Spray and Pyrolysis Method for Lithium-Ion Batteries.

ABSTRACT: In the critical situation of energy shortage and environmental problems, Si has been regarded as one of the most potential anode materials for next-generation lithium-ion batteries as a result of the relatively low delithiation potential and the eminent specific capacity. However, a Si anode is subjected to the huge volume expansion-contraction in the charging-discharging process, which can touch off pulverization of the bulk particles and worsens the cycle life. Herein, to reduce the volume change and improve the electrochemical performance, a novel Si@SiO_x/C anode with a core-shell structure is designed by spray and pyrolysis methods. The SiO_x/C shell not only ensures the structure stability and proves the high electrical conductivity but also prevents the penetrati

SUBMITTER: Li X 

PROVIDER: S-EPMC8959764 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature