Enhanced cycling stability and rate capability of a graphene-supported commercialized Vat Blue 4 anode for advanced Li-ion batteries.

ABSTRACT: Commercialized Vat Blue 4 (VB4) has attracted more attention as a promising anode for large-scale applications in Li-ion batteries (LIBs) due to its high electrochemical activity, low price, and large-scale production. However, its moderate solubility results in severe capacity decay and low utilization of active components. Herein, we present a graphene-supported VB4 composite (VB4/rGO) prepared by a facile sonication and hydrothermal process for long cycling stability and high-rate capability. This design can significantly enhance the Li-storage properties, including high capacity (1045 mA h g^-1 at 0.1 A g^-1), long cycling stability (537 mA h g^-1 even over 1000 cycles at 1 A g^-1), and rate capability (315 mA h g^-1 at 5 A g^-1

SUBMITTER: Kang H 

PROVIDER: S-EPMC9580473 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature