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公开(公告)号：US11731880B2
公开(公告)日：2023-08-22
申请号：US17260601
申请日：2019-07-17
申请人： KURARAY CO., LTD.
IPC分类号： C01B32/30 , C01B32/336 , C01B32/318 , C01B32/384 , H01G11/24 , H01G11/34
CPC分类号： C01B32/336 , C01B32/318 , C01B32/384 , H01G11/24 , H01G11/34 , C01P2006/11 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/37 , C01P2006/40
摘要： A carbonaceous material may have a high capacitance per volume as well as a high durability, and/or may have a BET specific surface area is 1,500 to 1,900 m2/g, an average pore size is 1.84 to 2.05 nm at a nitrogen relative pressure P/P0 of 0.93 in a nitrogen adsorption isotherm measured at 77.4 K, a ratio of pore volume having a pore size of 3 nm or smaller, determined by the BJH method, is 65 to 90% relative to total pore volume calculated based on a nitrogen adsorption amount at a relative pressure P/P0 of 0.93 in the nitrogen adsorption isotherm, and a ratio of pore volume having a pore size of 1 to 2 nm, determined by the MP method, is 10 to 20% relative to total pore volume calculated based on the nitrogen adsorption amount at a relative pressure P/P0 of 0.93 in the nitrogen adsorption isotherm.
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公开(公告)号：US11823837B2
公开(公告)日：2023-11-21
申请号：US16948816
申请日：2020-10-01
申请人： KURARAY CO., LTD.
摘要： A carbonaceous material for electric double-layer capacitors that is based on a plant-derived carbon precursor, in which carbonaceous material: a BET specific surface area is 1,900 to 2,500 m2/g; an average pore size is 2.2 to 2.6 nm as determined by a nitrogen adsorption method; a volume of micropores having a pore size of 2 nm or smaller is 0.84 to 1.30 cm3/g as determined by the MP method; a ratio of a volume of micropores having a pore size of 1 to 2 nm with respect to the volume of the micropores having a pore size of 2 nm or smaller is 25 to 50% as determined by the MP method; and a volume of mesopores having a pore size of 2 to 50 nm is 0.16 to 0.4 cm3/g as determined by the BJH method; and a method of producing same.
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公开(公告)号：US10297398B2
公开(公告)日：2019-05-21
申请号：US15306956
申请日：2015-04-21
申请人： Kuraray Co., Ltd.
摘要： A porous carbon material for electrodes of energy storage devices comprising: a porous carbon material; 0.5 to 5 parts by mass of an insulating material having a boiling point of 150° C. or more based on 100 parts by mass of the porous carbon material; and 0.25 to 15 parts by mass of a conductive additive based on 100 parts by mass of the insulating material, wherein the insulating material and the conductive additive are carried on the porous carbon material in combination, and the porous carbon material has a BET specific surface area of 1300 to 2050 m2/g.
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