Tetrakis(perfluororganyl)gallate for LIBs, ILs and photocatalysis
Abstract
Tetrakis(perfluororganyl)gallate for LIBs, ILs and photocatalysis
Background
Scientists at the University of Bielefeld successfully synthesized tetrakis(perfluoralkyl)gallate, tetrakis(perfluoralkenyl)gallate, and tetrakis(perfluoralkinyl)gallate, e.g. as the conducting salt for lithium-ion batteries, as a photoacid generator or as a weakly coordinating anion in ionic liquids.
Images & Videos
![Figure 2: Voltage (red) and current profile (blue) of a prototype battery with Li[Ga(C2F5)4] as the conducting salt.](/uploads/tx_news/5517_TA_TetGal_3_01.png "Figure 2: Voltage (red) and current profile (blue) of a prototype battery with Li[Ga(C2F5)4] as the conducting salt.")
![Figure 1: Molecular structure of the anion [Ga(C2F5)4]— in the solid state.](/uploads/tx_news/5517_TA_TetGal_1_01.png "Figure 1: Molecular structure of the anion [Ga(C2F5)4]— in the solid state.")
Solution
A coulombic efficiency only slightly below the reference cell with Li[PF6] could already be determined on the as yet unoptimized system. The conductivity of Li[Ga(C2F5)4] in a 1 M diethyl carbonate solution, which is twice as high compared to Li[PF6], and its thermal stability (greater than 150°C) were demonstrated in the laboratory.
Advantages
- Non-toxic
- Hydrolytically stable
- High conductivity
- Coulombic efficiency comparable to Li[PF6]
Service
A patent has been filed for the invention in Germany. International patent registrations are possible.
Member
PROvendis GmbH
Dr. Thorsten Schaefer
+49.208 94105-27
ts@provendis.info
www.provendis.info
Address
Schloßstr. 11-15
45468 Mülheim an der Ruhr
Development status
Laboratory model
Patent situation
- DE pending
