Title:
CARBONACEOUS MATERIAL FOR ELECTRIC DOUBLE LAYER CAPACITORS AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2018/092721
Kind Code:
A1
Abstract:
The present invention provides: a carbonaceous material for electric double layer capacitors, which is effective for improvement of durability and improvement of withstand voltage; and a method for producing this carbonaceous material for electric double layer capacitors. The present invention relates to a carbonaceous material for electric double layer capacitors, which is based on a plant-derived carbon precursor, and which is configured such that: the BET specific surface area thereof is 1,900-2,500 m2/g; the average pore diameter thereof as calculated by a nitrogen adsorption method is 2.2-2.6 nm; the pore volume of micropores having pore diameters of 2 nm or less as determined by an MP method is 0.84-1.30 cm3/g; the ratio of the pore volume of micropores having pore diameters of 1-2 nm to the pore volume of micropores having pore diameters of 2 nm or less as determined by an MP method is 25-50%; and the pore volume of mesopores having pore diameters of 2-50 nm as determined by a BJH method is 0.16-0.4 cm3/g.
Inventors:
NISHITA YUMIKA (JP)
NISHIMURA SHUSHI (JP)
EGAWA YOSHIFUMI (JP)
OTSUKA KIYOTO (JP)
NISHIMURA SHUSHI (JP)
EGAWA YOSHIFUMI (JP)
OTSUKA KIYOTO (JP)
Application Number:
PCT/JP2017/040771
Publication Date:
May 24, 2018
Filing Date:
November 13, 2017
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
H01G11/24; C01B32/318; C01B32/336; C01B32/354; H01G11/20; H01G11/86
Domestic Patent References:
| WO2014129410A1 | 2014-08-28 |
Foreign References:
| JP2006179558A | 2006-07-06 | |||
| JP2002128514A | 2002-05-09 | |||
| JP2012204496A | 2012-10-22 | |||
| JP2010168238A | 2010-08-05 | |||
| JP2004189587A | 2004-07-08 | |||
| JP2016222502A | 2016-12-28 | |||
| JP4618929B2 | 2011-01-26 | |||
| JPS522460B2 | 1977-01-21 | |||
| JP2011176043A | 2011-09-08 | |||
| JPS5317659B2 | 1978-06-09 | |||
| JP5463144B2 | 2014-04-09 |
Other References:
B.C. LIPPENSJ.H. DE BOER, J. CATALYSIS, vol. 4319, 1965
See also references of EP 3544038A4
See also references of EP 3544038A4
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
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