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Ionic liquid and hy...
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Plylahan, Nareerat,1984Chalmers tekniska högskola,Chalmers University of Technology
(author)
Ionic liquid and hybrid ionic liquid/organic electrolytes for high temperature lithium-ion battery application
- Article/chapterEnglish2016
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LIBRIS-ID:oai:research.chalmers.se:c0dbc7c5-d579-471c-b60b-edccd2202373
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https://research.chalmers.se/publication/245261URI
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https://doi.org/10.1016/j.electacta.2016.08.025DOI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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Ionic liquid (IL) and hybrid IL/organic electrolytes with pyrrolidinium cation based ILs have been investigated for application in high temperature lithium-ion batteries (HT-LIBs). The IL based electrolytes show high thermal stabilities, up to 340 degrees C, ionic conductivities of > 5 x 10(-3) S cm(-1) at 80 degrees C, and broad electrochemical stability windows: 0-5 V vs. Li+/Li degrees. The performance of LiFePO4 based half-cells at 80 degrees C is promising, delivering ca. 160 mAh g(-1) at 1C, with a rate capability up to 4C and ca. 98% coulombic efficiency. The creation of hybrid IL/organic electrolytes by adding different organic cyclic carbonate solvents reduces viscosity of the electrolytes by 28% at 80 degrees C, thereby improving the ion transport, and further improves the electrochemical performance; higher stability, better rate capability, and >= 99% coulombic efficiency. Overall, the electrolytes proposed have a potential to be applied in HT-LIBs, a concept with large advantages at the vehicle system level. (C) 2016 Elsevier Ltd. All rights reserved.
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Kerner, Manfred,1984Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)kerner
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Lim, Du Hyun,1983Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)duhyun
(author)
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Matic, Aleksandar,1968Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)matic
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Johansson, Patrik,1969Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jpatrik
(author)
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Chalmers tekniska högskola
(creator_code:org_t)
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In:Electrochimica Acta: Elsevier BV216, s. 24-340013-4686
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