1Advanced Carbon Products, CSIR-National Physical Laboratory, New Delhi 110012, India
2CSIR-Central Electro Chemical Research Institute, Karaikudi, Chennai 630006, India
3Department of Physics, Banaras Hindu University, Varanasi 221005, UP, India
Adv. Mater. Lett., 2017, 8 (11), pp 1038-1045
Publication Date (Web): Aug 05, 2017
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The quick advancement of flexible energy storage gadgets has persuaded individuals to look for reliable electrodes with high mechanical flexibility and remarkable electrochemical performance. In the present study, we demonstrate a simple and scalable process to fabricate a flexible, light-weight, free-standing polyvinylidene fluoride-multiwalled carbon nanotubes (PVDF-MWCNT) composite paper, which can be specifically utilized as a flexible anode for lithium ion batteries (LIBs). The excellent binding of MWCNT with PVDF matrix, developed by a straightforward vacuum filtration process, provides sufficient structural integrity to the composite paper. The breaking strength of the PVDF-MWCNT composite paper so formed is found to be 3.5 MPa with strain to failure of 11.25%. The composite paper so developed shows a good cycle reversible charge capacity when used as anode in a standard Li-ion battery. The PVDF-MWCNT composite paper provides a novel pathway to large scale fabrication of flexible electrodes which can be used without conducting support of copper sheet.
MWCNT, flexible, free-standing, composite, anode, Li-ion battery.