Schweiger, H. -G. and Multerer, M. and Schweizer-Berberich, M. and Gores, H. J. (2008) Optimization of cycling behavior of lithium ion cells at 60 degrees C by additives for electrolytes based on lithium bis[1,2-oxalato(2-)-O,O '] borate. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 3 (4). pp. 427-443. ISSN 1452-3981,
Full text not available from this repository. (Request a copy)Abstract
We investigated 13 additives well known from literature and studied their effect on the performance of lithium ion cells comprised of electrolytes based on lithium bis[1,2-oxalato(2-)-O,O'] borate. The additives can be attributed to three classes including chemically modified solvents, metal salts, and oligoethers. In contrast to similar studies in literature, where often only a single additive was investigated, the effect of 13 additives was studied under the same conditions at cells cycled up to 500 times at 60 degrees C in a thermostat. The internal resistance of the cells and the charge capacity of cells are reported. Whereas tetra ethylene glycol dimethyl ether showed the best performance, increasing the lifetime of cells by a factor of five and doubling the cell capacity after 500 cycles other additives did show no effect or even deteriorated the cell performance.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CARBONATE-BASED ELECTROLYTES; LI-ION; PROPYLENE CARBONATE; VINYLENE CARBONATE; BATTERY ELECTROLYTES; GRAPHITE-ELECTRODES; ANODES; EXFOLIATION; OXIDATION; SOLVENTS; lithium-ion battery; cycling; additive; lithium bis[1,2-oxalato(2-)-O,O '] borate |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > PD Dr. Heiner Jakob Gores |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 04 Nov 2020 16:36 |
| Last Modified: | 04 Nov 2020 16:36 |
| URI: | https://pred.uni-regensburg.de/id/eprint/31105 |
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