Effect of Electrolyte Filling Technology on the Performance of Porous Carbon Electrode-Based Lithium-Oxygen Batteries

Although the theoretical energy densities of lithium-oxygen batteries (LOBs) far exceed those of lithium-ion batteries, the practical values of the LOBs are usually much lower because of the use of large electrolyte excesses. Thus, to realize LOBs with a high practical energy density, the electrolyt...

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Veröffentlicht in:ACS applied energy materials 2021-03, Vol.4 (3), p.2563-2569
Hauptverfasser: Matsuda, Shoichi, Yamaguchi, Shoji, Yasukawa, Eiki, Asahina, Hitoshi, Kakuta, Hirofumi, Otani, Haruhiko, Kimura, Shin, Kameda, Takashi, Takayanagi, Yoshiki, Tajika, Akihiko, Kubo, Yoshimi, Uosaki, Kohei
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container_end_page 2569
container_issue 3
container_start_page 2563
container_title ACS applied energy materials
container_volume 4
creator Matsuda, Shoichi
Yamaguchi, Shoji
Yasukawa, Eiki
Asahina, Hitoshi
Kakuta, Hirofumi
Otani, Haruhiko
Kimura, Shin
Kameda, Takashi
Takayanagi, Yoshiki
Tajika, Akihiko
Kubo, Yoshimi
Uosaki, Kohei
description Although the theoretical energy densities of lithium-oxygen batteries (LOBs) far exceed those of lithium-ion batteries, the practical values of the LOBs are usually much lower because of the use of large electrolyte excesses. Thus, to realize LOBs with a high practical energy density, the electrolyte amount should be minimized without compromising their performance. To address this challenge, we herein investigate the influence of several electrolyte filling techniques on the performance of LOBs, revealing that the battery discharge/charge profiles are strongly influenced by the uniformity of electrolyte distribution in the porous carbon electrode. The obtained results show the importance of electrolyte filling technology for realization of practical high-energy-density LOBs and facilitate their further development.
doi_str_mv 10.1021/acsaem.0c03128
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title Effect of Electrolyte Filling Technology on the Performance of Porous Carbon Electrode-Based Lithium-Oxygen Batteries
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