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Highly porous piezoelectric PVDF membrane as effective lithium ion transfer channels for enhanced self-charging power cell.
- Source :
- Nano Energy; May2015, Vol. 14, p77-86, 10p
- Publication Year :
- 2015
-
Abstract
- A self-charging power cell (SCPC) is a structure that hybridizes the mechanisms for energy conversion and storage into one process through which mechanical energy can be directly converted into electrochemical energy. A key structure of an SCPC is the use of a polyvinylidene fluoride (PVDF) piezo-separator. Herein, we have fabricated a piezoelectric β-form PVDF separator with a highly porous architecture by introducing ZnO particles. The electrochemical charge/discharge performance of this SCPC was greatly enhanced at lower discharge rates compared to highly stretched (high-β-content) or less porous PVDF membranes. The lower charge-transfer resistance of this well-developed porous piezo-separator is the main factor that facilitated the transport of Li + ions without sacrificing piezoelectric performance. This study reveals a novel approach for improving the performance of SCPCs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 22112855
- Volume :
- 14
- Database :
- Supplemental Index
- Journal :
- Nano Energy
- Publication Type :
- Academic Journal
- Accession number :
- 103408004
- Full Text :
- https://doi.org/10.1016/j.nanoen.2015.01.006