Article Poor Cycling Performance of Rechargeable Lithium–Oxygen Batteries under Lean‐Electrolyte and High‐Areal‐Capacity Conditions: Role of Carbon Electrode Decomposition

Manai Ono SAMURAI ORCID (National Institute for Materials Science) ; Jittraporn Saengkaew SAMURAI ORCID (National Institute for Materials Science) ; Shoichi Matsuda SAMURAI ORCID (National Institute for Materials Science)

Advanced Science - 2023 - Ono - Poor Cycling Performance of Rechargeable Lithium Oxygen Batteries under Lean‐Electrolyte (3).pdf
Download file (1.48 MB)
Download as zip (1.24 MB)
Collection

Citation
Manai Ono, Jittraporn Saengkaew, Shoichi Matsuda. Poor Cycling Performance of Rechargeable Lithium–Oxygen Batteries under Lean‐Electrolyte and High‐Areal‐Capacity Conditions: Role of Carbon Electrode Decomposition. Advanced Science. 2023, 10 (24), 2300896.
SAMURAI

Description:

(abstract)

There is growing demand for practical implementation of lithium–oxygen batteries (LOBs) due to their superior potential for achieving higher energy density than that of conventional lithium-ion batteries. Although recent studies demonstrate the stable operation of 500 Wh kg−1-class LOBs, their cycle life remains fancy. For further improving the cycle performance of LOBs, the complicated chemical degradation mechanism in LOBs must be elucidated. In particular, the quantitative contribution of each cell component to degradation phenomenon in LOBs under lean-electrolyte and high-areal-capacity conditions should be clarified. In the present study, the mass balance of the positive-electrode reaction in a LOB under lean-electrolyte and high-areal-capacity conditions is quantitatively evaluated. The results reveal carbon electrode decomposition to be the critical factor that prevents the prolonged cycling of the LOB. Notably, the carbon electrode decomposition occur during charging at voltages higher than 3.8 V through the electrochemical decomposition of solid-state side products. The findings of this study highlight the significance of improving the stability of the carbon electrode and/or forming Li2O2, which can decompose at voltages lower than 3.8 V, to realize high-energy-density LOBs with long cycle life.

Rights:

Keyword: lithium oxygen battery

Date published: 2023-06-20

Publisher: Wiley

Journal:

  • Advanced Science (ISSN: 21983844) vol. 10 issue. 24 2300896

Funding:

  • Advanced Low Carbon Technology Research and Development Program
  • Japan Science and Technology Agency JPMJAL1301

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1002/advs.202300896

Related item:

Other identifier(s):

Contact agent:

Updated at: 2024-06-20 08:30:31 +0900

Published on MDR: 2024-06-20 08:30:31 +0900

Filename Size
Filename Advanced Science - 2023 - Ono - Poor Cycling Performance of Rechargeable Lithium Oxygen Batteries under Lean‐Electrolyte (3).pdf (Thumbnail)
application/pdf 		Size 1.48 MB Detail