Lithiated Graphite Materials for Negative Electrodes of Lithium-Ion Batteries

摘要

For the first time an attempt was made to eliminate problems of irreversible charging in the first cycle when a new lithium-ion battery is set to work. The research work was based on an artificial lithiation of the carbonaceous anode via three lithiation techniques: the direct electrochemical method, lithiation using FeCl_3 as mediator, and via a direct contact with metallic Li. The cycling ability and specific capacity were the criteria of suitability, the contact with metal lithium was found to be the most efficient one. The battery grade carbon and/or expanded graphite were used as anode materials.