Zn2GeO4@C Core–Shell Nanorods as Highly Reversible Anode Materials for Lithium‐Ion Batteries

We report the synthesis of Zn2GeO4 nanorods using a simple hydrothermal process. After the coating of a carbon layer by the thermal decomposition of acetylene gas, the Zn2GeO4@C core–shell nanorods were obtained. The as‐synthesized Zn2GeO4@C core–shell nanorods were used as anode materials of lithium‐ion batteries, which showed good cycling and rate performance. A highly reversible specific capacity of 718 mAh g−1 after 400 cycles was achieved at a current density of 400 mA g−1. The core–shell nanostructures and partially amorphous and porous nanostructures helped to alleviate the volume change and enhance the conductivity during the charge/discharge process, which may be responsible for the good performance. Reverse Ability! This article reports the synthesis of Zn2GeO4@core–shell nanorods using simple hydrothermal processes and the thermal decomposition of acetylene gas. The as‐synthesized Zn2GeO4@C core–shell nanorods are used as anode materials of lithium‐ion batteries, which show good cycling and rate performance.