Solid-State Lithium Conductors for Lithium Metal Batteries Based on Electrospun Nanofiber/ Plastic Crystal Composites
2019/11/27 21:19:24
Zhou, Y. D., X. E. Wang, H. J. Zhu, M. Yoshizawa-Fujita, Y. Miyachi, M. Armand, M. Forsyth, G. W. Greene, J. M. Pringle and P. C. Howlett
Organic ionic plastic crystals (OIPCs) are a class of solid-state electrolytes with good thermal stability, non-flammability, non-volatility, and good electrochemical stability. When prepared in a composite with electrospun polyvinylidene fluoride (PVdF) nanofibers, a 1:1 mixture of the OIPC N-ethyl-N-methylpyrrolidinium bis(fluorosulfonyl) imide ([C(2)mpyr][FSI]) and lithium bis( fluorosulfonyl) imide (LiFSI) produced a free-standing, robust solid-state electrolyte. These high-concentration Li-containing electrolyte membranes had a transference number of 0.37(+/- 0.02) and supported stable lithium symmetric-cell cycling at a current density of 0.13 m Acm(-2). The effect of incorporating PVdF in the Li-containing plastic crystal was investigated for different ratios of PVdF and [Li][FSI]/[C(2)mpyr][FSI]. In addition, Li jLiNi(1/3)Co(1/3)Mn(1/3)O(2) cells were prepared and cycled at ambient temperature and displayed a good rate performance and stability.
- Journal: Chemsuschem
- Volume: 10
- Issue: 15
- Pages: 3135-3145
- ISSN: 1864-5631
- DOI: 10.1002/cssc.201700691
- Year: 2017
- Number:
- Type:
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