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Hierarchical three-dimensional micro/nano-architecture of polyaniline nanowires wrapped-on polyimide nanofibers for high performance lithium-ion battery separators.
- Source :
-
Journal of Power Sources . Dec2015, Vol. 299, p417-424. 8p. - Publication Year :
- 2015
-
Abstract
- Polyaniline/polyimide (PANI/PI) composites with hierarchical 3D micro/nano-architecture have been prepared via electrospinning and in-situ polymerization. The PANI/PI composite prepared from 0.2 M aniline (PANI/PI-2) exhibited a small average pore size (1.730 μm) and a narrow pore size distribution (1.552–1.882 μm). Compared to the commercial polyolefin separators, the PANI/PI composite separator possesses a much better thermal stability up to 180 °C, a higher porosity (84%), a larger liquid electrolyte uptake (619%) and a higher ionic conductivity (2.33 mS cm −1 ). The cell with PANI/PI-2 composite separator showed a low interfacial resistance, an enhanced capacity (133 mAh g −1 at 0.2C), a better rate capability (41.4% at 10C) and cyclability (89.3% retention after 500 charge/discharge cycles at 0.2C). The PANI/PI composite with a superior thermal stability and high electrochemical performances is a promising candidate for uses in high perform LIBs. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LITHIUM-ion batteries
*POLYANILINES
*POLYIMIDES
*NANOFIBERS
*ELECTROSPINNING
Subjects
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 299
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 110303766
- Full Text :
- https://doi.org/10.1016/j.jpowsour.2015.09.037