Anion Intercalation into Graphene-like Graphite and Its Application to Dual-Ion Battery Cathodes

Key Points

• This research aims to enhance the energy density of dual-ion batteries by utilizing graphene-like graphite as the cathode material through anion intercalation analysis.
• Synthesis of graphene-like graphite (GLG) via thermal treatment of expanded graphite.
• Analysis of anion insertion and extraction behaviors from thermodynamic and kinetic perspectives.
• Performance evaluation of dual-ion battery full cells using GLG as both positive and negative electrodes.
• Exploration of GLG as a potential cathode material in other secondary batteries.
• Significant improvement in energy density was observed using GLG as the cathode material.
• Thermodynamic and kinetic analyses provided insights into the anion intercalation process.
• GLG demonstrated potential application for next-generation secondary batteries.