Poster

FZJ-2014-05403

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Deposition of Corrosion Preventing Coatings for Dual-Ion Batteries

Krott, M. (Corresponding Author)FZJ* ; Uhlenbruck, S.FZJ* ; Buchkremer, H. P.FZJ* ; Meister, P. ; Winter, M.

2014

Please use a persistent id in citations: http://hdl.handle.net/2128/8059

Abstract: Commercial lithium ion batteries (LIB) are built with liquid electrolytes containing organic carbonates and lithium hexafluorophosphate (LiPF6). The flammability of these carbonates implies safety risks which could be avoided by replacing the electrolyte mixtures by ionic liquids (ILs), e.g. based on anions like bis(trifluoromethylsulfonyl)imide (TFSI). Additionally, LiPF6 (which also tends to thermal decomposition) can be substituted by appropriate conducting salts, e.g. LiTFSI. Since these components show negligible vapor pressure and high thermal stability, the danger of thermal runaway is minimized, but some problems are still to be solved. In this context, anodic dissolution of the aluminum current collector is a very important issue. To overcome this drawback, innovative protection coatings are deposited on aluminum foils by magnetron sputtering.

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEK-1)

Research Program(s):

1. 435 - Energy Storage (POF2-435) (POF2-435)

Appears in the scientific report 2014

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Database coverage:

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