Electrochemical reaction device

Patent metadata

Field	Value
Publication number	US-2018080130-A1
Application number	US-201715453654-A
Country	US
Kind code	A1
Filing date	Mar 8, 2017
Priority date	Sep 21, 2016
Publication date	Mar 22, 2018
Grant date	—

Abstract

An electrochemical reaction device of an embodiment includes: an electrolytic solution tank; a first electrode in the first room; a second electrode in the second room; and a generator. The electrolytic solution tank includes a first room and a second room. The first room is capable of storing a first electrolytic solution containing a first substance including carbon dioxide. The second room is capable of storing a second electrolytic solution containing a second substance. The first electrode reduces the first substance. The second electrode oxidizes the second substance. The generator is electrically connected to the first and second electrodes. The first electrode includes a conductor having a flow path penetrating through the conductor.

First claim

What is claimed is:

1 . An electrochemical reaction device comprising:
an electrolytic solution tank including a first room and a second room, the first room being capable of storing a first electrolytic solution containing a first substance including carbon dioxide, the second room being capable of storing a second electrolytic solution containing a second substance; a first electrode in the first room to reduce the first substance; a second electrode in the second room to oxidize the second substance; and a generator electrically connected to the first and second electrodes, wherein the first electrode includes a conductor having a flow path penetrating through the conductor.

2 . The electrochemical reaction device of claim 1 ,
wherein the conductor has a plurality of conductive members and at least one gap between the adjacent conductive members, the at least one gap works as the flow path, and wherein the maximum width of the at least one gap is not less than 0.01 mm nor more than 0.1 mm.

3 . The electrochemical reaction device of claim 2 , wherein the conductive members are conductive fiber.

4 . The electrochemical reaction device of claim 3 , wherein the conductive fiber is carbon fiber.

5 . The electrochemical reaction device of claim 3 , wherein the conductive fiber is metal fiber.

6 . The electrochemical reaction device of claim 5 , wherein the metal fiber comprises at least one element selected from gold, silver, platinum, copper, zinc, palladium, and nickel.

7 . The electrochemical reaction device of claim 2 , wherein the first electrode has a metal layer in contact with one of the conductive members.

8 . The electrochemical reaction device of claim 7 , wherein the metal layer comprises at least one element selected from gold, silver, platinum, copper, zinc, palladium, and nickel.

9 . The electrochemical reaction device of claim 2 , wherein the first electrode has a modifier organic molecule bonded to the surface of the conductive member or a surface of the metal layer, the modifier organic molecule including a quaternary cation.

10 . The electrochemical reaction device of claim 1 ,
wherein the second electrode includes a second conductor having a second flow path penetrates through the second conductor.

11 . The electrochemical reaction device of claim 1 , wherein the generator includes a photoelectric conversion layer having a first surface electrically connected to the first electrode and a second surface electrically connected to the second electrode.

12 . The electrochemical reaction device of claim 1 , wherein the second substance includes water.

13 . The electrochemical reaction device of claim 1 , further comprising:
a plurality of the second electrodes arranged along one direction of the electrolytic solution tank in the second room; and a channel connecting the first room and the outside of the electrolytic solution tank along the one direction, wherein the conductor overlies the plural second electrodes.

14 . The electrochemical reaction device of claim 13 ,
wherein the electrolytic solution tank has a cylindrical shape having a length along the one direction, wherein the plural second electrodes each extend along an inner peripheral surface of the electrolytic solution tank, and wherein the conductor is closer to a center axis of the electrolytic solution tank than the plural second electrodes are.

Assignees

• Toshiba Kk

Inventors

• Mizuguchi Koji
• Uchikoga Shuichi
• Tsuji Hideyuki
• Mikoshiba Satoshi
• Ono Akihiko

Classifications

• C25B1/04 Primary

  by electrolysis of water · CPC title

• H01G9/2013

  the electrolyte comprising ionic liquids, e.g. alkyl imidazolium iodide · CPC title

• C25B11/0405

  Chemistry & Metallurgy · mapped topic

• C25B11/0415

  Chemistry & Metallurgy · mapped topic

• C25B3/04 Primary

  Chemistry & Metallurgy · mapped topic