Lithium salts for advanced lithium batteries: Li-metal, Li-O2, and Li-S
2015 (English)In: Energy & Environmental Science, ISSN 1754-5692, E-ISSN 1754-5706, Vol. 8, no 7, 1905-1922 p.Article, review/survey (Refereed) Published
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.
Place, publisher, year, edition, pages
2015. Vol. 8, no 7, 1905-1922 p.
IdentifiersURN: urn:nbn:se:uu:diva-255709DOI: 10.1039/C5EE01215EISI: 000357541300004OAI: oai:DiVA.org:uu-255709DiVA: diva2:823276
FunderSwedish Energy AgencySwedish Foundation for Strategic Research