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Synthesis and characterisation of solid low-Tg polymer electrolytes for lithium-ion batteries
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström.
2014 (English)Independent thesis Advanced level (professional degree), 300 HE creditsStudent thesis
Abstract [en]

Electrolytes of poly(trimethylene carbonate-co-ε-caprolactone), poly(TMC-co-CL), and LiTFSI have been prepared and characterised. The copolymers were analysed with GPC and NMR, which showed that random high molecular weight copolymers of desired compositions had been obtained. The electrolytes with varied salt concentration were examined with TGA, DSC, FTIR and impedance spectroscopy. The highest ionic conductivities were measured for the copolymer of 60:40 ratio of TMC:CL and for the homopolymer poly(ε-caprolactone), PCL, both electrolytes with 28 wt% LiTFSI. The ionic conductivity was measured to of the order of 10−3 S cm−1 for the PCL electrolyte and 10−4 S cm−1 for the 60:40 copolymer at 50 °C. 

Place, publisher, year, edition, pages
2014. , 28 p.
Series
UPTEC K, ISSN 1650-8297 ; 14013
Keyword [en]
Electrolyte
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:uu:diva-226754OAI: oai:DiVA.org:uu-226754DiVA: diva2:727186
Educational program
Master Programme in Chemical Engineering
Supervisors
Examiners
Available from: 2014-08-06 Created: 2014-06-19 Last updated: 2014-08-06Bibliographically approved

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Department of Chemistry - Ångström
Chemical Engineering

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CiteExportLink to record
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Citation style
  • apa
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Output format
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