期刊
ENERGY
卷 95, 期 -, 页码 483-493出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2015.11.069
关键词
Kish graphite; Catalytic graphitization; Anode material; Lithium insertion; Lithium-ion battery; Plastic waste
资金
- Council of Scientific and Industrial Research (CSIR), Government of India [IAP-04]
- Inter Agency Project under the XI Five Year Plan
- CSIR
Graphitic carbon continues to dominate as the choice anode material in lithium-ion batteries despite its theoretical specific capacity of 372 mAhg(-1). Tailored forms of graphite with higher practical capacities should, therefore, be of interest to the industry. This paper reports the production of a kish graphitic anode material from polyvinyl chloride by simultaneous carbonization of the polymer and dissolution of the resulting carbon in an iron melt to produce a supersaturated solution of carbon in iron, and subsequent precipitation of the carbon as graphite upon cooling. Our study presents a process for converting non-biodegradable plastic wastes that litter our surroundings into a technologically useful product. The new material exhibits a first-cycle reversible capacity of 444 mAhg(-1) and sustains at least 200 cycles at C/10 rate before its capacity drops below 372 mAhg(-1). (C) 2015 Elsevier Ltd. All rights reserved.
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