Synthesis and characterisation of sponge-like carbon anode materials for lithium ion batteries

摘要

Micro-sized carbon material with a unique sponge-like morphology has been fabricated by hydrothermal method coordinating etching process. When evaluate its electrochemical properties in lithium ion batteries, the sponge-like carbon structure exhibits very high specific capacity (around 1175 mAh g~(-1) after 140th cycle tested at the charge/discharge current density of 200 mA g~(-1)) and wonderful cyclability (about 117% retention is available when cycled back from very high current density of 800 mAg~(-1)) during the galvanostatic cycling, indicating it may be a promising candidate as anode material for Li-ion batteries.