Candle Soot derived Fractal-like Carbon Nanoparticles Network as High-Rate Lithium Ion Battery Anode Material. (20th October 2015)

• Record Type: Journal Article
• Authors: Kakunuri, Manohar; Sharma, Chandra S.
• Is Part Of: Electrochimica acta. Volume 180(2015)
• Page Start: 353
• Page End: 359
• Publication Date: 2015-10-20
• Subjects: Candle soot -- Carbon nanoparticles -- Anode materials -- High rate -- Lithium-ion battery; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.08.124
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: In this article, we report a facile and inexpensive approach to synthesize fractal-like interconnected network of carbon nanoparticles from candle soot and its direct application as anode material for high-rate lithium ion batteries used for electric vehicles. At low charge/discharge rate (0.5C), an initial discharge capacity was found to be 1997 mAh/g with moderate 30% coulombic efficiency that increased to 91% after 10 cycles. More importantly, at very high charge/discharge rate (10C), reversible capacity was stabilized at 170 mAh/g even after 1000 cycles. This remarkable electrochemical performance may be ascribed to unique morphology of these hard carbon nanoparticles that reduces the diffusion length and also allows fast adsorption/desorption of Li ions on their surface.