Flow type energy storage device and reaction cell for the device

Patent metadata

Field	Value
Publication number	US-2016308236-A1
Application number	US-201615099742-A
Country	US
Kind code	A1
Filing date	Apr 15, 2016
Priority date	Apr 17, 2015
Publication date	Oct 20, 2016
Grant date	—

Abstract

Disclosed is a flow-type energy storage device having an improved flow of fluid. The flow-type energy storage device stores electricity using a fluidic material, and includes a reaction region in which charge-discharge reaction of electricity is performed by the fluidic material, wherein the reaction region has an octagonal cross-section. The shape of the reaction region is controlled to thus improve the flowability of the fluidic material, thereby providing a flow-type energy storage device that has almost constant electrical properties even when a charging and discharging cycle is repeatedly performed. Further, the structures of an inlet and an outlet are not complicated and a separate part for controlling the flow of fluid is not used in the device, and accordingly, additional costs are not incurred during a process of manufacturing the flow-type energy storage device.

First claim

What is claimed is:

1 . A flow-type energy storage device for storing electricity using a fluidic material, the flow-type energy storage device comprising:
a reaction region in which charge-discharge reaction of electricity is performed by the fluidic material, wherein the reaction region has an octagonal cross-section.

2 . The flow-type energy storage device of claim 1 , wherein an inlet, through which the fluidic material is injected into the reaction region, and an outlet, through which the fluidic material is emitted from the reaction region, are formed, and the inlet and the outlet are disposed so that the fluidic material flows diagonally.

3 . The flow-type energy storage device of claim 2 , wherein the reaction region includes an anode reaction region and a cathode reaction region while a membrane is positioned between the anode reaction region and the cathode reaction region, and the inlet and the outlet are disposed in the anode reaction region and the cathode reaction region, respectively, so that diagonal flow directions of the fluidic material cross each other in the anode reaction region and the cathode reaction region.

4 . The flow-type energy storage device of claim 3 , wherein the inlet and the outlet are disposed so that the fluidic material flows upward in any one reaction region of the anode reaction region and the cathode reaction region and flows downward in the remaining reaction region.

5 . The flow-type energy storage device of claim 1 , wherein the flow-type energy storage device is a redox flow battery.

6 . The flow-type energy storage device of claim 1 , wherein the flow-type energy storage device is an electrochemical flow capacitor.

7 . A reaction cell for use in a flow-type energy storage device for storing electricity using a fluidic material, the reaction cell comprising:
a reaction region in which charge-discharge reaction of electricity is performed by the fluidic material, wherein the reaction region has an octagonal cross-section.

8 . The reaction cell of claim 7 , wherein the reaction region is formed using a gasket, and a through hole, which is formed through the gasket, has an octagonal cross-section.

9 . The reaction cell of claim 7 , wherein an inlet, through which the fluidic material is injected into the reaction region, and an outlet, through which the fluidic material is emitted from the reaction region, are formed, and the inlet and the outlet are disposed so that the fluidic material flows diagonally.

10 . The reaction cell of claim 9 , wherein the reaction region includes an anode reaction region and a cathode reaction region, while a membrane is positioned between the anode reaction region and the cathode reaction region, and the inlet and the outlet are disposed in the anode reaction region and the cathode reaction region, respectively, that diagonal flow directions of the fluidic material cross each other in the anode reaction region and the cathode reaction region.

11 . The reaction cell of claim 10 , wherein the inlet and the outlet are disposed so that the fluidic material flows upward in any one reaction region of the anode reaction region and the cathode reaction region and flows downward in the remaining reaction region.

12 . The reaction cell of claim 7 , wherein the flow-type energy storage device is a redox flow battery.

13 . The reaction cell of claim 7 , wherein the flow-type energy storage device is an electrochemical flow capacitor.

Assignees

• Korea Energy Research Inst

Inventors

• Yeon Sun-Hwa
• Shin Kyoung-Hee
• Jeon Jae-Deok
• Yoo Jung Joon
• Yoon Hana
• Jin Chang-Soo
• Shim Joon-Mok
• Yang Jung-Hoon
• Jung Kyu-Nam
• Kim Dong-Ha
• Park Se-Kook

Classifications

• H01G11/02

  using combined reduction-oxidation reactions, e.g. redox arrangement or solion · CPC title

• H01G11/74

  Terminals, e.g. extensions of current collectors · CPC title

• H01M8/04201

  Reactant storage and supply, e.g. means for feeding, pipes · CPC title

• H01G11/08

  Structural combinations, e.g. assembly or connection, of hybrid or EDL capacitors with other electric components, at least one hybrid or EDL capacitor being the main component · CPC title

• H01M8/04082

  Arrangements for control of reactant parameters, e.g. pressure or concentration · CPC title