Development of a biodegradable polymer electrolyte for rechargeable batteries

The possibility of producing a biodegradable polymer electrolyte based on poly-ɛ-caprolactone (PCL) with different concentrations of LiClO 4 has been investigated. The maximum ionic conductivity obtained at room temperature was 1.2 × 10 −6 S cm −1 for PCL complexed with 10 wt.% LiClO 4. In this mixt...

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Bibliographic Details
Published in:Journal of power sources 2006-04, Vol.155 (2), p.381-384
Main Authors: Fonseca, Carla Polo, Rosa, Derval S., Gaboardi, Flávia, Neves, Silmara
Format: Article
Language:English
Subjects:
Applied sciences
Batteries
Biodegradation
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Electrochemical devices
Exact sciences and technology
Poly-ɛ-caprolactone
Polymer electrolyte
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Summary:The possibility of producing a biodegradable polymer electrolyte based on poly-ɛ-caprolactone (PCL) with different concentrations of LiClO 4 has been investigated. The maximum ionic conductivity obtained at room temperature was 1.2 × 10 −6 S cm −1 for PCL complexed with 10 wt.% LiClO 4. In this mixture, complete biodegradation occurred after 110 days and was attributed to the presence of ester groups in the polymer matrix. The large electrochemical stability window of approximately 5 V showed that the PCL/LiClO 4 electrolyte had important electrochemical properties that would make it useful in the production of rechargeable batteries with a lower environmental impact.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2005.05.004