Nano-Micro Letters (Sep 2024)

Photo-Energized MoS2/CNT Cathode for High-Performance Li–CO2 Batteries in a Wide-Temperature Range

  • Tingsong Hu,
  • Wenyi Lian,
  • Kang Hu,
  • Qiuju Li,
  • Xueliang Cui,
  • Tengyu Yao,
  • Laifa Shen

DOI
https://doi.org/10.1007/s40820-024-01506-1
Journal volume & issue
Vol. 17, no. 1
pp. 1 – 16

Abstract

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Highlights The unique layered structure and excellent photoelectric properties of MoS2 facilitate the abundant generation and rapid transfer of photo-excited carriers, which accelerate the CO2 reduction and Li2CO3 decomposition upon illumination. MoS2-based photo-energized Li–CO2 battery displays ultra-low charge voltage of 3.27 V, high energy efficiency of 90.2%, superior cycling stability after 120 cycles and high rate capability. The low-temperature Li–CO2 battery achieves an ultra-low charge voltage of 3.4 V at –30 °C with a round-trip efficiency of 86.6%.

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