Activated carbon for use in electrode of power-storage device, and method for producing same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01G-011/24
H01G-011/34
H01G-011/42
H01G-011/26
H01G-011/50
H01G-011/86
C01B-032/354
C01B-032/336
출원번호
US-0022091
(2014-09-03)
등록번호
US-10083800
(2018-09-25)
우선권정보
JP-2013-195919 (2013-09-20)
국제출원번호
PCT/JP2014/073146
(2014-09-03)
국제공개번호
WO2015/041051
(2015-03-26)
발명자
/ 주소
Tsukada, Hidehiko
Onda, Kimiyasu
Miyaji, Hiroshi
Shiraishi, Soshi
Endo, Yukiko
출원인 / 주소
AION CO., LTD.
대리인 / 주소
Greenblum & Bernstein, P.L.C.
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
First, the present invention involves adding a curing catalyst to a phenolic resin, polyvinyl alcohol, a pore-forming agent, and a cross-linking agent, and mixing, casting, heating, and drying the same. Next, the plate-shaped porous phenolic resin obtained thereby which has uniform consecutive macro
First, the present invention involves adding a curing catalyst to a phenolic resin, polyvinyl alcohol, a pore-forming agent, and a cross-linking agent, and mixing, casting, heating, and drying the same. Next, the plate-shaped porous phenolic resin obtained thereby which has uniform consecutive macropores having an average pore diameter in the range of 3 to 35 μm and formed in a three-dimensional network pattern is immersed with an organic solvent. Thereafter, this block is extracted and pressure is applied thereto. It is possible to obtain plate-shaped activated carbon for use in an electrode of a power-storage device by carbonizing and activating a block which has undergone this procedure by keeping the same at an increased temperature.
대표청구항▼
1. An activated carbon for use in an electrode of a power-storage device, wherein the activated carbon comprises uniform consecutive macropores, the size of the macropores distributed is centered in the range of 0.01 to 5 μm, the specific surface area is in the range of 1500 to 2700 m2/g, the microp
1. An activated carbon for use in an electrode of a power-storage device, wherein the activated carbon comprises uniform consecutive macropores, the size of the macropores distributed is centered in the range of 0.01 to 5 μm, the specific surface area is in the range of 1500 to 2700 m2/g, the micropore volume is in the range of 0.55 to 1.0 ml/g, the average micropore width is in the range of 0.79 to 0.95 nm, and the bulk density is in the range of 0.49 to 1.0 gcm−3. 2. An electric double layer capacitor, wherein the activated carbon according to claim 1 is used for an electrode. 3. A lithium ion capacitor, wherein the activated carbon according to claim 1 is used for an electrode. 4. A method for producing an activated carbon for use in an electrode of a power-storage device, comprising the steps of: adding a pore-forming agent and a cross-linking agent to an aqueous solution prepared by mixing a phenolic resin and polyvinyl alcohol and mixing the same to obtain a mixture, adding and mixing a catalyst for curing the mixture to obtain a reaction liquid, casting the reaction liquid into a predetermined plate-shaped mold, heating and reacting the same for predetermined hours to obtain a reaction product, taking out from the mold and cleaning with water the reaction product, removing the pore-forming agent and an unreacted product therefrom, and drying the same to obtain a plate-shaped porous phenolic resin including uniform consecutive macropores having an average pore diameter in the range of 3 to 35 μm and formed in a three-dimensional network pattern;immersing the plate-shaped porous phenolic resin with an organic solvent;pressurizing the plate-shaped porous phenolic resin after taking out the immersed plate-shaped porous phenolic resin from the organic solvent;heating the plate-shaped porous phenolic resin pressurized to a temperature in the range of room temperature to 700 to 1000° C. in inert gas atmosphere, keeping the temperature in inert gas atmosphere, and carbonizing the plate-shaped porous phenolic resin to obtain a plate-shaped carbonized product; andactivating the plate-shaped carbonized product so that the activation yield is in the range of 40 to 70% to obtain a plate-shaped activated carbon. 5. The method for producing an activated carbon for use in an electrode of a power-storage device according to claim 4, wherein the organic solvent is ketone or alcohol. 6. The method for producing an activated carbon for use in an electrode of a power-storage device according to claim 5, wherein the ketone is acetone. 7. The method for producing an activated carbon for use in an electrode of a power-storage device according to claim 4, wherein the plate-shaped carbonized product is activated by heating the same from room temperature to a temperature in the range of 800 to 900° C. in inert gas atmosphere, and keeping the same under carbon dioxide circulation at the increased temperature. 8. The method for producing an activated carbon for use in an electrode of a power-storage device according to claim 5, wherein the plate-shaped carbonized product is activated by heating the same from room temperature to a temperature in the range of 800 to 900° C. in inert gas atmosphere, and keeping the same under carbon dioxide circulation at the increased temperature. 9. The method for producing an activated carbon for use in an electrode of a power-storage device according to claim 6, wherein the plate-shaped carbonized product is activated by heating the same from room temperature to a temperature in the range of 800 to 900° C. in inert gas atmosphere, and keeping the same under carbon dioxide circulation at the increased temperature. 10. The method for producing an activated carbon for use in an electrode of a power-storage device according to claim 4, wherein the predetermined shape of the mold is a block or plate, and when the predetermined shape of the mold is a block, a step of cutting out the dried reaction product in the form of a plate is included. 11. An electric double layer capacitor, wherein an activated carbon produced by the method according to claim 4 is used for an electrode. 12. An electric double layer capacitor, wherein an activated carbon produced by the method according to claim 5 is used for an electrode. 13. An electric double layer capacitor, wherein an activated carbon produced by the method according to claim 6 is used for an electrode. 14. An electric double layer capacitor, wherein an activated carbon produced by the method according to claim 7 is used for an electrode. 15. A lithium ion capacitor, wherein an activated carbon produced by the method according to claim 4 is used for an electrode. 16. A lithium ion capacitor, wherein an activated carbon produced by the method according to claim 5 is used for an electrode. 17. A lithium ion capacitor, wherein an activated carbon produced by the method according to claim 6 is used for an electrode. 18. A lithium ion capacitor, wherein an activated carbon produced by the method according to claim 7 is used for an electrode.
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