Redox flow secondary battery and electrode thereof
AssigneeShowa Denko K.K.
InventorsMasatoshi ICHIKAWA, Keizo ISEKI, Kenzo HANAWA
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Abstract
The present invention provides a redox flow secondary battery including a positive electrode, a negative electrode facing the positive electrode, and an ion exchange membrane provided between the positive electrode and the negative electrode, at least one electrode of the positive electrode and the negative electrode has a metal protective film having an opening and a carbon electrode including carbon fibers in order from the ion exchange membrane side, and the height of the protruding peak portion of the surface of the metal protective film, which is in contact with the ion exchange membrane, is 0.1 to 2 μm.
Claims17
A redox flow secondary battery comprising:
- a positive electrode;
- a negative electrode facing the positive electrode;
- and
- an ion exchange membrane provided between the positive electrode and the negative electrode,
- wherein one or both of the positive electrode and the negative electrode include a metal protective film and a carbon electrode including carbon fibers in order from the ion exchange membrane side,
- wherein a first main surface of the metal protective film is provided on the ion exchange membrane side, and
- wherein the metal protective film has an opening, and
- a height of a protruding peak portion of a surface which is the first main surface is 0.1 to 2 μm.
Dependencies are inferred from the claim text.