A germanium and zinc chalcogenide as an anode for a high-capacity and long cycle life lithium battery.

ABSTRACT: High-performance lithium ion batteries are ideal energy storage devices for both grid-scale and large-scale applications. Germanium, possessing a high theoretical capacity, is a promising anode material for lithium ion batteries, but still faces poor cyclability due to huge volume changes during the lithium alloying/dealloying process. Herein, we synthesized an amorphous germanium and zinc chalcogenide (GZC) with a hierarchically porous structure via a solvothermal reaction. As an anode material in a lithium ion battery, the GZC electrode exhibits a high reversible capacity of 747 mA h g^-1 after 350 cycles at a current density of 100 mA g^-1 and a stable capacity of 370 mA h g^-1 after 500 cycles at a current density of 1000 mA g^-1 along wit

SUBMITTER: Chen X 

PROVIDER: S-EPMC9074167 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature