Fluorinated Pyrocarbon Prepared from Ketjenblack for Primary Lithium Battery

Zhi Chao Liu; Jia Chun Lu; Ping Huang

doi:10.4028/www.scientific.net/AMR.968.16

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 968Fluorinated Pyrocarbon Prepared from Ketjenblack...

Fluorinated Pyrocarbon Prepared from Ketjenblack for Primary Lithium Battery

Abstract:

Pyrocarbons were obtained by heat-treatment of Ketjenblack at different temperature from 1000°C to 2400°C, and fluorinated in NF₃ atmosphere at 520°C to give CF_x samples with high fluorine content. The results indicate that the structure of both pyrocarbons and their derivative fluorides mainly depend on the heat-treatment temperature of raw carbon. The correlation between the electrochemical performance and the structure of pyrocarbon fluoride was discussed in detail. At an optimum condition, the yield of fluorination can come up to 90%, and the pyrocarbon fluoride, as cathode active material of lithium primary cell, gives an energy density up to 2200 Wh kg^-1.

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Periodical:

Advanced Materials Research (Volume 968)

Pages:

16-20

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.968.16

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Online since:

June 2014

Authors:

Zhi Chao Liu*, Jia Chun Lu, Ping Huang

Keywords:

Fluorinated Carbon, Ketjenblack, Lithium Batteries, Pyrocarbon

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