公开(公告)号：US20190058197A1

公开(公告)日：2019-02-21

申请号：US16168173

申请日：2018-10-23

申请人： TOHOKU TECHNO ARCH CO., LTD. ,  TPR INDUSTRY CO., LTD

发明人： Hidemi KATO ,  Seung-Geun YU ,  Takeshi WADA

IPC分类号： H01M4/66 ,  C01B32/30 ,  C01B32/348 ,  C01B32/20 ,  H01M4/88 ,  H01M4/587 ,  C01B32/336

摘要： A method for producing porous graphite capable of realizing higher durability, output and capacity, and porous graphite. A carbon member having microvoids is obtained by a dealloying step for selectively eluting other non-carbon main components into a metal bath by immersing a carbon-containing material, composed of a compound including carbon or an alloy or non-equilibrium alloy, in the metal bath, wherein the metal bath has a solidifying point lower than the melting point of the carbon-containing material, and is controlled to a temperature lower than the minimum value of a liquidus temperature within a composition fluctuation range extending from the carbon-containing material to carbon by reducing the other non-carbon main components. The carbon member obtained in the dealloying step is graphitized by heating in a graphitization step. The carbon member graphitized in the graphitization step is subjected to activation treatment by an activation step.

公开(公告)号：US20170225955A1

公开(公告)日：2017-08-10

申请号：US15501553

申请日：2015-09-04

申请人： TOHOKU TECHNO ARCH CO., LTD. ,  TPR INDUSTRY CO., LTD.

发明人： Hidemi KATO ,  Seung-Geun YU ,  Takeshi WADA

IPC分类号： H01M4/64 ,  H01M4/587 ,  H01M4/88 ,  H01M4/66

CPC分类号： H01M4/663 ,  C01B32/20 ,  C01B32/30 ,  C01B32/336 ,  C01B32/348 ,  C01P2002/74 ,  C01P2004/02 ,  C01P2004/04 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/40 ,  H01M4/587 ,  H01M4/8807

摘要： A method for producing porous graphite capable of realizing higher durability, output and capacity, and porous graphite. A carbon member having microvoids is obtained by a dealloying step for selectively eluting other non-carbon main components into a metal bath by immersing a carbon-containing material, composed of a compound including carbon or an alloy or non-equilibrium alloy, in the metal bath, wherein the metal bath has a solidifying point lower than the melting point of the carbon-containing material, and is controlled to a temperature lower than the minimum value of a liquidus temperature within a composition fluctuation range extending from the carbon-containing material to carbon by reducing the other non-carbon main components. The carbon member obtained in the dealloying step is graphitized by heating in a graphitization step. The carbon member graphitized in the graphitization step is subjected to activation treatment by an activation step.