Towards Li-Ion Batteries Operating at 80° C: Ionic Liquid versus Conventional Liquid Electrolytes
Artikel i vetenskaplig tidskrift, 2018

Li-ion battery (LIB) full cells comprised of TiO 2 -nanotube (TiO 2 -nt) and LiFePO 4 (LFP) electrodes and either a conventional organic solvent based liquid electrolyte or an ionic liquid based electrolyte have been cycled at 80°C. While the cell containing the ionic liquid based electrolyte exhibited good capacity retention and rate capability during 100 cycles, rapid capacity fading was found for the corresponding cell with the organic electrolyte. Results obtained for TiO 2 -nt and LFP half-cells indicate an oxidative degradation of the organic electrolyte at 80°C. In all, ionic liquid based electrolytes can be used to significantly improve the performance of LIBs operating at 80°C.

Författare

G Oltean

Uppsala universitet

Nareerat Plylahan

Chalmers, Fysik, Kondenserade materiens fysik

Charlotte Ihrfors

Uppsala universitet

Wei Wei

Uppsala universitet

Chao Xu

Uppsala universitet

Kristina Edström

Uppsala universitet

Leif Nyholm

Uppsala universitet

Patrik Johansson

Chalmers, Fysik, Kondenserade materiens fysik

Torbjörn Gustafsson

Uppsala universitet

Batteries

Vol. 4 1 2

Högtemperaturlitiumbatterier för fordonstillämpningar

Energimyndigheten, 2013-12-01 -- 2016-06-30.

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Styrkeområden

Transport

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Fysik

Kemi

DOI

10.3390/batteries4010002

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Senast uppdaterat

2019-06-25