SiCN/C-ceramic composite as anode material for lithium ion batteries

摘要: The choice of electrode and electrolyte materials to design lithium batteries is limited due the chemical reactivity used during intercalation/deintercalation process. Amorphous silicon carbonitride (SiCN) ceramics are known be chemically stable in corrosive environments exhibit disordered carbonaceous regions making it potentially suitable protect graphite from exfoliation. material studied this work was synthesized by mixing commercial powder with crosslinked polysilazane VL20®. Pyrolysis polymer/graphite compound at appropriate temperatures inert argon atmosphere resulted formation an amorphous SiCN/graphite composite material. First electrochemical investigations pure SiCN SiCN/C presented here. A reversible capacity 474 mA hg−1 achieved a sample containing 25 wt% VL20® 75 graphite. measured exceeds that factor 1.3 without any fading over 50 cycles.