Title:
METHOD FOR PRODUCING CARBON FIBERS, CARBON FIBERS, AND ELECTRODE FOR ELECTRIC DOUBLE LAYER CAPACITORS
Document Type and Number:
WIPO Patent Application WO/2017/199966
Kind Code:
A1
Abstract:
This method for producing carbon fibers comprises: a step for obtaining an ash-free coal by means of solvent extraction of a coal; a step for electrospinning the ash-free coal obtained in the ash-free coal acquisition step together with a solvent; and a step for carbonizing fibers obtained in the electrospinning step, preferably a step for heating the fibers at a temperature from 700°C to 1,200°C (inclusive). The thus-obtained carbon fibers have a specific surface area of from 300 m2/g to 3,000 m2/g (inclusive), an average diameter of from 0.5 μm to 5 μm (inclusive) and an oxygen content of 0.4% by mass or more, and are suitable as an electrode for electric double layer capacitors.
Inventors:
HAMAGUCHI MAKI
WADA SHOHEI
INOUE TOSHINORI
TOYODA MASAHIRO
WADA SHOHEI
INOUE TOSHINORI
TOYODA MASAHIRO
Application Number:
PCT/JP2017/018391
Publication Date:
November 23, 2017
Filing Date:
May 16, 2017
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
NATIONAL UNIV CORPORATION OITA UNIV (JP)
NATIONAL UNIV CORPORATION OITA UNIV (JP)
International Classes:
D01F9/14; D01D5/04; H01G11/40
Domestic Patent References:
| WO2016147743A1 | 2016-09-22 |
Foreign References:
| JP2007142204A | 2007-06-07 | |||
| JP2004067498A | 2004-03-04 | |||
| JP2009203565A | 2009-09-10 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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