公开(公告)号：US20210020385A1

公开(公告)日：2021-01-21

申请号：US16948816

申请日：2020-10-01

申请人： KURARAY CO., LTD.

发明人： Yumika NISHITA ,  Shushi Nishimura ,  Yoshifumi Egawa ,  Kiyoto Otsuka

IPC分类号： H01G11/34 ,  H01G11/24 ,  H01G11/44 ,  H01G11/86 ,  C01B32/30

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.

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.

发明人： Yumika Nishita ,  Shushi Nishimura ,  Yoshifumi Egawa ,  Kiyoto Otsuka

IPC分类号： C01B32/30 ,  H01G11/34 ,  H01G11/24 ,  H01G11/44 ,  H01G11/86

CPC分类号： H01G11/34 ,  C01B32/30 ,  H01G11/24 ,  H01G11/44 ,  H01G11/86

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.

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.

发明人： Yumika Nishita ,  Shushi Nishimura ,  Yoshifumi Egawa ,  Kiyoto Otsuka

IPC分类号： H01M4/02 ,  H01G11/86 ,  H01G11/42 ,  H01G11/44 ,  H01G11/32 ,  H01M4/587 ,  H01M4/62

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.