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

R. Younesi ; G.M. Veith ; Patrik Johansson (Institutionen för teknisk fysik, Kondenserade materiens fysik) ; K. Edström ; T. Vegge
Energy and Environmental Science (1754-5692). Vol. 8 (2015), 7, p. 1905-1922.
[Artikel, refereegranskad vetenskaplig]

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.



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Denna post skapades 2015-07-28. Senast ändrad 2016-09-09.
CPL Pubid: 220019

 

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Institutionen för teknisk fysik, Kondenserade materiens fysik (1900-2015)

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