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Understanding the Role of Lithium Iodide in Lithium–Oxygen Batteries

Journal Article · · Advanced Materials
 [1];  [1];  [2];  [3];  [4];  [1]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Mohammed VI Polytechnic University, Ben Guerir, (Morocco)
  3. Mohammed VI Polytechnic University, Ben Guerir, (Morocco)
  4. Argonne National Lab. (ANL), Lemont, IL (United States); Stanford Univ., CA (United States)
Lithium–oxygen (Li–O2) batteries possess a high theoretical energy density, which means they could become a potential alternative to lithium-ion batteries. Nevertheless, the charging process of Li–O2 batteries requires much higher energy, due to the insulating nature of the discharge product. It has been revealed that the anion additive, lithium iodide (LiI), can tune the cell chemistry to form lithium hydroxide (LiOH) as the product and facilitate the kinetics during the charging process. Although numerous studies have been reported, the role of this additive is still under investigation. Herein, the recent advances focusing on the use of LiI in Li–O2 batteries are reviewed, its catalytic behavior on discharge and charge is discussed, and its synergistic effect with water is understood. Here, the ambiguity existing among the studies are also revealed, and solutions to the current issues are introduced.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1840895
Alternate ID(s):
OSTI ID: 1833770
Journal Information:
Advanced Materials, Journal Name: Advanced Materials Journal Issue: 1 Vol. 34; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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