Lithium salts for advanced lithium batteries: Li-metal, Li-O2, and Li-S
Journal article, 2015

Presently lithium hexafluorophosphate (LiPF6) 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 LiPF6 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-O2), and lithium-sulfur (Li-S), require a re-evaluation of Li-salts due to the different electrochemical and chemical reactions and conditions within such cells. This review explores the critical role Li-salts play in ensuring in these batteries viability.

Author

S. R. Younesi

Uppsala University

Technical University of Denmark (DTU)

G.M. Veith

Oak Ridge National Laboratory

Patrik Johansson

Chalmers, Applied Physics, Condensed Matter Physics

K. Edström

Uppsala University

Alistore - European Research Institute

T. Vegge

Technical University of Denmark (DTU)

Energy and Environmental Sciences

1754-5692 (ISSN)

Vol. 8 7 1905-1922

Areas of Advance

Transport

Energy

Materials Science

Subject Categories

Physical Sciences

Chemical Sciences

DOI

10.1039/c5ee01215e

More information

Latest update

9/6/2018 2