- Patent Title: Carbonaceous material, and electrode material for electric double layer capacitor, electrode for electric double layer capacitor and electric double layer capacitor that contain carbonaceous material
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Application No.: US16301589Application Date: 2017-04-21
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Publication No.: US11551877B2Publication Date: 2023-01-10
- Inventor: Shohei Kobayashi , Motomi Matsushima , Seiya Kimachi , Hideharu Iwasaki
- Applicant: KURARAY CO., LTD.
- Applicant Address: JP Kurashiki
- Assignee: KURARAY CO., LTD.
- Current Assignee: KURARAY CO., LTD.
- Current Assignee Address: JP Kurashiki
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2016-099743 20160518
- International Application: PCT/JP2017/016036 WO 20170421
- International Announcement: WO2017/199686 WO 20171123
- Main IPC: C01B31/08
- IPC: C01B31/08 ; H01G11/32 ; H01G11/04 ; H01G11/34 ; H01G11/20 ; C01B32/318 ; H01G11/86 ; H01G11/24 ; C01B32/336 ; H01G11/42 ; C01B32/354 ; C01B32/30 ; H01G11/00

Abstract:
An object of the present invention is to provide a carbonaceous material used for an electric double layer capacitor having a high electrostatic capacity and capable of maintaining the high electrostatic capacity and energy density over a long period and a method for producing the same. The present invention relates to a carbonaceous material having a specific surface area of 1,200 m2/g to 1,800 m2/g according to a BET method, an R-value of 1.2 or more and a G-band half-value width of 70 cm−1 or more according to a Raman spectrum.
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