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Batteries

Breakthrough in Lithium-Carbon Dioxide Battery Technology Enhances Energy Efficiency and Cycle Life

Strategic Insights

— 1 min read

Researchers from Chongqing University of Posts and Telecommunications have made a groundbreaking discovery in the development of lithium-carbon dioxide batteries. The team has created a dual-active-site AuRu catalyst supported on TiO2 nanorod arrays, which significantly improves the performance of the battery. The new design enables the battery to achieve an ultralong cycle life exceeding 1100 cycles, low charge voltages, high energy efficiency, and excellent stability at elevated temperatures.

Key Takeaways:

  • The dual-active-site AuRu catalyst supported on TiO2 nanorod arrays enhances the reaction kinetics of the CO2 reduction reaction (CO2RR) and CO2 evolution reaction (CO2ER).
  • This design allows for complementary catalytic roles: Au facilitates CO2 activation, whereas Ru promotes Li2CO3 breakdown.
  • The battery employing the AuRu/TiO2 cathode delivers an ultralong cycle life exceeding 1100 cycles, low charge voltages (2.9-3.1 V), high energy efficiency (77.9%), and excellent stability at elevated temperatures.
  • The researchers establish a generalizable catalyst-support strategy for long lifespan metal-CO2 batteries, offering a promising route toward high-performance carbon neutral energy storage devices.
  • Financial supporters for this research include the National Natural Science Foundation of China (NSFC), Key R&D Project of Nantong, China Postdoctoral Science Foundation, and Open Project of the National Laboratory of Solid-State Microstructure.
  • The study has been peer-reviewed and published in the journal Nano Research.

Statistics:

  • 1100 cycles: ultralong cycle life achieved by the Li-CO2 battery employing the AuRu/TiO2 cathode.
  • 2.9-3.1 V: low charge voltages delivered by the battery.
  • 77.9 %: high energy efficiency of the battery.
  • Exceeding 1100 hours: battery stability at elevated temperatures.
  • 18(9): issue number of the journal Nano Research where the study was published.
  • 2025: year the study was published.
  • China: country where the research was conducted.

Sources:

  • A Long Cycle Lifespan and High Energy Efficiency Li-co 2 Battery Enabled By Dual-active Site Auru Catalysts On Tio 2 . Nano Research, 18(9).
  • NewsRx. Findings from Chongqing University of Posts and Telecommunications Provide New Insights into Chemicals and Chemistry (A Long Cycle Lifespan and High Energy Efficiency Li-co 2 Battery Enabled By Dual-active Site Auru Catalysts On ...). News of Science. November 2, 2025; p 534.

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