New insight into minimal architecture based carbon nanotubes anode with improved mechanical properties for Li-ion battery

Satish Teotia1,3, B.P. Singh1*, Anisha Chaudhary1, Indu Elizabeth2, Anchal Srivastava3, Saroj Kumari1, S. R. Dhakate1, S. Gopukumar2, R. B. Mathur1

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

DOI: 10.5185/amlett.2017.1692

Publication Date (Web): Aug 05, 2017

E-mail: bps@nplindia.org, bpsingh2k4@yahoo.com

Abstract


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. 

Keywords

MWCNT, flexible, free-standing, composite, anode, Li-ion battery.

Upcoming Congress

Knowledge Experience at Sea TM