Atomic-layer-deposited Ru-RuOx mixed protective layer for improving ionic-electronic conductivity of sintered LiCoO2 cathode in Li-ion batteries

Key Points

• To investigate the effects of an atomic-layer-deposited Ru-RuOx mixed protective layer on the conductivity of LiCoO2 cathodes in Li-ion batteries.
• Utilized atomic layer deposition for applying Ru-RuOx protective layer.
• Evaluated the ionic and electronic conductivity of sintered LiCoO2 cathodes before and after layering.
• Conducted performance tests to assess energy density improvements.
• Significant increase in ionic conductivity observed in modified LiCoO2 cathodes.
• Electronic conductivity also improved, enhancing overall battery efficiency.
• High-density sintered structures showed promising energy density compared to traditional designs.