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US 11,043,680 B2Granted
Electrode material including small diameter, carbon nanotubes bridging large diameter carbon nanotubes, redox flow battery electrode, redox flow battery, and method for producing electrode material
AssigneeShowa Denko K.K.
InventorsKenzo Hanawa, Ryuji Monden, Takenori Nishikata
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Abstract
A redox flow battery includes: first carbon nanotubes having an average diameter of 100 nm or r core, and second carbon nanotubes having an average diameter of 30 nm or less, in which the second carbon nanotubes are adhered to surfaces of the first carbon nanotubes such that the second carbon nanotubes bridge between the plural first carbon nanotubes. Since the redox flow battery includes an electrode material and an electrode including the electrode material, the electromotive force and the charging capacity are high.
Claims14
An electrode material comprising:
- first carbon nanotubes having an average diameter of 100 nm or more;
- and
- second carbon nanotubes having an average diameter of 30 nm or less,
- wherein the second carbon nanotubes are adhered to surfaces of the first carbon nanotubes such that the individual second carbon nanotubes bridge between the plural first carbon nanotubes, and
- when 100 arbitrary second carbon nanotubes are observed with a transmission electron microscope, 10 or more second carbon nanotubes bridge between the plural first carbon nanotubes.
2 more elements
Dependencies are inferred from the claim text.