期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 89, 期 -, 页码 149-157出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2013.09.026
关键词
Functional composites; Electrical properties; Interphase; Photoelectron spectroscopy (XPS); Scanning electron microscopy (SEM)
资金
- European commission [234236]
- Swedish Foundation for Strategic Research (SSF) [RMA08-0002]
- Swedish Foundation for Strategic Research (SSF) [RMA08-0002] Funding Source: Swedish Foundation for Strategic Research (SSF)
We report a method to deposit a thin solid polymer electrolyte (SPE) coating around individual carbon fibres for the realization of novel battery designs. In this study an electrocoating method is used to coat methacrylate-based solid polymer electrolytes onto carbon fibres. By this approach a dense uniform, apparently pinhole-free, poly(methoxy polyethylene glycol (350) monomethacrylate) coating with an average coating thickness of 470 nm was deposited around carbon fibres. Li-triflate, used as supporting electrolyte remained in the coating after the electrocoating operation. The Li-ion content in the solid polymer coating was found to be sufficiently high for battery applications. A battery device was built employing the SPE coated carbon fibres as negative electrode demonstrating reversible specific capacity of 260 mA h/g at low currents (C/10), suggesting that these coated carbon fibres can be employed in future structural composite batteries. (C) 2013 Elsevier Ltd. All rights reserved.
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