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Title: Correlating Catalyst Design and Discharged Product to Reduce Overpotential in Li-CO2 Batteries

Journal Article · · Small
 [1];  [1];  [2]; ORCiD logo [1]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States); Imam Abdulrahman Bin Faisal University (IAU) Dammam (Saudi Arabia). Institute for Research and Medical Consultations (IRMC); Stanford Univ., CA (United States)

Abstract Li‐CO 2 batteries with dual efficacy for greenhouse gas CO 2 sequestration and high energy output have been regarded as a promising electrochemical energy storage technology. However, battery feasibility has been hampered by inferior electrochemical performance due to large overpotentials and low cyclability primarily caused by the difficult decomposition of ultra‐stable Li 2 CO 3 during charge. The use of cathode catalysts has been highlighted as a promising solution and catalyst properties, as well as the nature of discharge products, are closely correlated with electrochemical performance. Here, the catalyst design strategies that include active site enrichment, electrical transport enhancement, and mass transfer improvement are summarized. Catalyst effects on product decomposition are then subsequently introduced, while product geometry and chemical composition will be explored, with an emphasis on the formation/decomposition of Li 2 C 2 O 4 instead of Li 2 CO 3 . Building on previous research, future directions that facilitate improvements in catalyst design are put forward to reinforce the fundamental development of Li‐CO 2 batteries.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office; USDOE
Grant/Contract Number:
AC02-06CH11357; DE‐AC02‐06CH11357
OSTI ID:
1837182
Alternate ID(s):
OSTI ID: 1786605
Journal Information:
Small, Vol. 17, Issue 48; ISSN 1613-6810
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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