Electrode substrate made of carbon fibers and method of producing the electrode substrate
US-2016190547-A1 · Jun 30, 2016 · US
Electrode for redox flow battery, and redox flow battery
US10622638B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10622638-B2 |
| Application number | US-201615769271-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 3, 2016 |
| Priority date | Oct 22, 2015 |
| Publication date | Apr 14, 2020 |
| Grant date | Apr 14, 2020 |
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Abstract
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An electrode for redox flow battery is disposed opposite a membrane of a redox flow battery. The electrode includes a fiber assembly including a plurality of carbon fibers. The fiber assembly includes soft carbon fibers with a Young's modulus of 200 GPa or less. An average carbon fiber diameter of the soft carbon fibers is preferably 20 μm or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electrode for redox flow battery, the electrode being disposed opposite a membrane of a redox flow battery, comprising a fiber assembly including a plurality of carbon fibers, wherein the fiber assembly includes soft carbon fibers with a Young's modulus of 200 GPa or less, wherein the fiber assembly further includes hard carbon fibers with a Young's modulus of over 200 GPa, wherein the fiber assembly has a multilayer structure including a soft fiber layer mainly composed of the soft carbon fibers and a hard fiber layer mainly composed of the hard carbon fibers, and wherein the soft fiber layer forms a first side of the fiber assembly facing the membrane. 2. The electrode for redox flow battery according to claim 1 , wherein an average carbon fiber diameter of the soft carbon fibers is 20 μm or less. 3. The electrode for redox flow battery according to claim 1 , wherein a basis weight of the soft fiber layer ranges from 20 g/m 2 to 300 g/m 2 . 4. The electrode for redox flow battery according to claim 1 , wherein a basis weight of the hard fiber layer ranges from 20 g/m 2 to 300 g/m 2 . 5. A redox flow battery comprising a positive electrode, a negative electrode, and a membrane interposed between the positive electrode and the negative electrode, wherein at least one of the positive electrode and the negative electrode includes the electrode for redox flow battery according to claim 1 . 6. The redox flow battery according to claim 5 , wherein a thickness of the membrane ranges from 5 μm to 60 μm. 7. The redox flow battery according to claim 6 , wherein the thickness of the membrane is 5 μm or more and 40 μm or less.
Assignees
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Classifications
by recharging of redox couples containing fluids; Redox flow type batteries · CPC title
Liquid depolarisers · CPC title
characterised by shape or form · CPC title
- H01M4/96Primary
Carbon-based electrodes · CPC title
- H01M4/663Primary
containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres · CPC title
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- What does patent US10622638B2 cover?
- An electrode for redox flow battery is disposed opposite a membrane of a redox flow battery. The electrode includes a fiber assembly including a plurality of carbon fibers. The fiber assembly includes soft carbon fibers with a Young's modulus of 200 GPa or less. An average carbon fiber diameter of the soft carbon fibers is preferably 20 μm or less.
- Who is the assignee on this patent?
- Sumitomo Electric Industries
- What technology area does this patent fall under?
- Primary CPC classification H01M4/96. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 14 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).