A biomass-derived polyhydroxyalkanoate biopolymer as safe and environmental-friendly skeleton in highly efficient gel electrolytes for lithium batteries

•We report on biomass derived PHA biopolymer as eco-friendly skeleton in GPE for LiB.•The gel was biodegradable, stable and showed excellent functional performances.•Biopolymer: Successful approach for green and safe electrolyte for sustainable LiBs. The massive use of lithium batteries in industrie...

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Bibliographic Details
Published inElectrochimica acta Vol. 247; pp. 63 - 70
Main Authors Dall’Asta, V., Berbenni, V., Mustarelli, P., Ravelli, D., Samorì, C., Quartarone, E.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.09.2017
Elsevier BV
Subjects
Automobile industry
Automotive engineering
Batteries
biodegradability
Biomass
Biopolymers
Chemical synthesis
Electrical resistivity
Electrolytes
Flammability
gel polymer electrolytes
Ion currents
Lithium batteries
polyhydroxyalkanoate
Renewable resources
sustainability
Thermal stability
gel polymer electrolytes
biodegradability
polyhydroxyalkanoate
lithium batteries
sustainability
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Summary:•We report on biomass derived PHA biopolymer as eco-friendly skeleton in GPE for LiB.•The gel was biodegradable, stable and showed excellent functional performances.•Biopolymer: Successful approach for green and safe electrolyte for sustainable LiBs. The massive use of lithium batteries in industries, such as automotive and electrical network accumulation, requires the development of safer electrolytes, economic and possibly made from renewable resources using eco-friendly processes. In this work, we reported the synthesis and the physico-chemical and functional characterization of a polymer gel electrolyte (GPE) based on a skeleton of polyhydroxyalkanoate obtained from biomass by means of an easy and environmentally friendly chemical process. The GPE has an ionic conductivity of 0.8mScm−1 at room temperature, is thermally stable up to over 100°C and is not flammable. The electrochemical stability window is higher than 5V. The cell Li/GPE/LiFePO4 shows specific capacity of 100 mAhg−1 at 3C with 100% coulombic efficiency. These results demonstrate that the GPE based on polyhydroxyalkanoate is very promising for use in lithium batteries of high power density.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2017.07.005