Amorphous AlPO₄ Layer Coating Vacuum Thermal Reduced SiO_x with Fine Silicon Grains to Enhance the Anode Stability.

ABSTRACT: Micrometer-sized silicon monoxide (SiO) is regarded as a high-capacity anode material with great potential for lithium ion batteries (LIBs). However, the problems of low initial Coulombic efficiency (ICE), poor electrical conductivity, and large volume change of SiO inevitably impede further application. Herein, the vacuum thermal reduced SiO_x with amorphous AlPO₄ and carbon double-coating layers is used as the ideal anode material in LIBs. The vacuum thermal reduction at low temperature forms fine silicon grains in the internal particles and maintains the external integrity of SiO_x particles, contributing to mitigation of the stress intensification and the subsequent design of multifunctional coating. Meanwhile, the innovative introduction of the multifunc

SUBMITTER: Luan J 

PROVIDER: S-EPMC11423219 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature