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Electrochemical study comparing liquid and gel electrolytes for lithium-ion batteries based on LiTDI or LiPF6.
- Source :
- Chemical Monthly / Monatshefte für Chemie; Apr2024, Vol. 155 Issue 3/4, p267-273, 7p
- Publication Year :
- 2024
-
Abstract
- Liquid and gel electrolytes based on common commercial and recently commercialized salts for application in lithium-ion (Li-ion) batteries are presented herein. Various solvent mixtures and electrolytes based on them are presented. Selected organic carbonates' mixtures are chosen as the base for these electrolytes. LiTDI (lithium 4,5-dicyano-2-(trifluoromethyl)-imidazolide) and LiPF<subscript>6</subscript> (lithium hexafluorophosphate) are chosen to compare the behavior and the electrochemical properties of the investigated systems. The limited optimizations of electrolytes are presented for LiTDI salt. Results for LiPF<subscript>6</subscript> electrolytes are presented as a benchmark. The detailed comparison of lithium transference numbers is presented. All liquid electrolytes present quite high values of conductivity at room temperature and in some cases reach above 6 mS cm<superscript>−1</superscript> for LiTDI solutions. The base for gel electrolytes is PVdF-HFP co-polymer (poly(vinylidene difluoride-co-hexafluoropropylene)). The conductivity of gel electrolytes exceeds 1 mS cm<superscript>−1</superscript> in case of the LiTDI system. All presented electrolytes show relatively high stability vs. Li/Li<superscript>+</superscript>, up to 4.7 V in both liquid and gel systems. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00269247
- Volume :
- 155
- Issue :
- 3/4
- Database :
- Complementary Index
- Journal :
- Chemical Monthly / Monatshefte für Chemie
- Publication Type :
- Academic Journal
- Accession number :
- 176499107
- Full Text :
- https://doi.org/10.1007/s00706-023-03166-0