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Title: Lithium salts for advanced lithium batteries: Li-metal, Li-O 2, and Li-S

Presently lithium hexafluorophosphate (LiPF 6) is the dominant Li-salt used in commercial rechargeable lithium-ion batteries (LIBs) based on a graphite anode and a 3-4 V cathode material. While LiPF 6 is not the ideal Li-salt for every important electrolyte property, it has a uniquely suitable combination of properties (temperature range, passivation, conductivity, etc.) rendering it the overall best Li-salt for LIBs. However, this may not necessarily be true for other types of Li-based batteries. Indeed, next generation batteries, for example lithium-metal (Li-metal), lithium-oxygen (Li-O 2), and lithium sulphur (Li-S), require a re-evaluation of Li-salts due to the different electrochemical and chemical reactions and conditions within such cells. Furthermore, this review explores the critical role Li-salts play in ensuring in these batteries viability.
 [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Univ. of Denmark, Roskilde (Denmark); Uppsala Univ., Uppsala (Sweden)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Chalmers Univ. of Technology, Goteborg (Sweden); ALISTORE-ERI European Research Institute, Amiens (France)
  4. Uppsala Univ., Uppsala (Sweden); ALISTORE-ERI European Research Institute, Amiens (France)
  5. Technical University of Denmark
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Energy & Environmental Science
Additional Journal Information:
Journal Volume: 8; Journal Issue: 7; Journal ID: ISSN 1754-5692
Royal Society of Chemistry
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
OSTI Identifier: