Title:
フロー電池の電極構造、フロー電池電堆及びフロー電池電堆の密封構造
Document Type and Number:
Japanese Patent JP7128812
Kind Code:
B2
Abstract:
An electrode structure of a flow battery, a flow battery stack, and a sealing structure of the flow battery stack, wherein the density of the vertical tow in the electrode fiber is larger than the density of the parallel tow. In the electrode fiber per unit volume, the quantity ratio of the vertical tow to the parallel tow is at least 6:4. The electrode structure is composed of an odd number of layers of the electrode fibers, and the porosity of other layers is larger than the porosity of the center layer. The electrode structure is mainly composed of the vertical tows perpendicular to the surface of the electrode, so that, firstly, the contact area between the outer surface of the electrode and the adjacent component can be increased and the contact resistance can be reduced, secondly, the electrode is endowed with good mechanical properties, compared with the original structure, the contact resistance of such structure is reduced by 30%-50%; and the layers of the electrode have different thickness depending on the porosity, after compression, the layers with optimized thickness have a consistent porosity, this compressed uniform structure avoids uneven mass transfer phenomena when the electrolyte flows through the electrode, and reduces the concentration polarization of the battery and thereby improving the battery energy output under the given power.
Inventors:
Liu Shenglin
Kang Hongdong
Zhang Huamin
Ma Sokun
Zhang
Esugi
Yang Zhenkun
Sun Dan
Kanei Koromo
Kang Hongdong
Zhang Huamin
Ma Sokun
Zhang
Esugi
Yang Zhenkun
Sun Dan
Kanei Koromo
Application Number:
JP2019524279A
Publication Date:
August 31, 2022
Filing Date:
November 03, 2017
Export Citation:
Assignee:
Dalian Fushinan Technology Development Co., Ltd.
International Classes:
H01M4/86; F16J15/10; H01M8/0276; H01M8/0284; H01M8/0286; H01M8/18
Domestic Patent References:
| JP2015122229A | ||||
| JP2003504806A | ||||
| JP2013065530A | ||||
| JP2001167785A | ||||
| JP2002367659A | ||||
| JP1239767A | ||||
| JP4632043B2 |
Foreign References:
| KR1020140136656A |
Attorney, Agent or Firm:
Osamu Niguchi
Hideyuki Haratani
Hideyuki Haratani