CNT Paper as Anode for Flexible Lithium-Ion Battery
traditional paper-making technology. The thick- ness, density and size can also be tailored arbi- trarily. In the study, MWCNT paper was applied directly as negative electrode without any substrate or binder. Since the carbonization process turned the ¯ber paper to amorphous carbon, the degree of purity and the conductivity of the MWCNT paper improved signi¯cantly. The reversible speci¯c ca- pacity of the CMP battery increased to 500 mAh/g from 220 mAh/g. And it maintained stable cycle performance at di®erent current densities. The MWCNT paper electrodes exhibited a strong ab- sorption of electrolyte, good conductivity and spe- cial micro-pores structure which greatly enhanced electrons and lithium ions migration. The primary studies revealed that the CMP can be used directly as negative electrode for lithium ion battery and have great potential as a °exible cell for wearable and portable electronic devices. Acknowledgments The ¯nancial support from Jiangxi Scienti¯c and Technical Bureau (20142BBE50071) and Jiangxi Educational Bureau (KJLD13006) are gratefully acknowledged. References 1. Z. Wang and S. Mitra, J. Power Sources 266 , 296 (2014). 2. W. Ren et al. , Electrochim. Acta 105 , 75 (2013). 3. S.W. Lee et al. , Energy Environ. Sci. 5 , 5437 (2012). 4. D. Zheng et al. , Physica E 53 , 155 (2013).
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