Sol-gel fabricated one-dimensional LiFePO4 microstructures for carbon nanotube-based nanocomposite freestanding sheet as cathode material for Li ion batteries

Author:

Al Shibli Hamda1,Chaturvedi Prerna1ORCID,Kanagaraj Amarsingh Bhabu1ORCID,Zaghari Pouria2ORCID,Choi Daniel S1,Ryu Jong Eun2ORCID

Affiliation:

1. Department of Mechanical and Nuclear Engineering, Khalifa University, Abu Dhabi, UAE

2. Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC, USA

Abstract

Lithium Iron Phosphate (LiFePO4) microstructures have been synthesized using the sol-gel process. One-dimensional (1D) LiFePO4 microstructures were fabricated using tissue paper as a template under different temperatures to form pure phase microstructures. XRD analysis confirmed the single phase nature of orthorhombic olivine-structured LiFePO4 with Pnma space group. SEM analysis authenticated the formation of 1D LiFePO4 microstructures along with some clusters of particles. LiFePO4-multi-walled carbon nanotubes (MWCNT) freestanding sheets were prepared using a tape-casting process. Further, the electrochemical properties of LiFePO4-MWCNT freestanding sheet were analyzed through electrochemical impedance spectroscopy, cyclic voltammetry, and galvanostatic charge-discharge analysis.

Funder

United Arab Emirates Space Agency

North Carolina State University

Publisher

SAGE Publications

Subject

Materials Chemistry,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites

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