Systems and Methods for Producing Carbon Solids
US-2024417566-A1 · Dec 19, 2024 · US
Carbon nanofiber actuator
US10199561B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10199561-B2 |
| Application number | US-201615076730-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 22, 2016 |
| Priority date | Jul 7, 2011 |
| Publication date | Feb 5, 2019 |
| Grant date | Feb 5, 2019 |
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- Title
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- Abstract
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Abstract
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An electroconductive film for an actuator is formed from a gel composition including carbon nanofibers, an ionic liquid, and a polymer. The carbon nanofibers are produced with an aromatic mesophase pitch by melt spinning.
First claim
Opening claim text (preview).
What is claimed is: 1. An actuator element comprising: an electrolyte membrane including a polymer and an ionic liquid; and at least two electroconductive films provided in a mutually insulative state on the opposing surfaces of the electrolyte membrane, wherein each electroconductive film is formed from a gel composition including carbon nanofibers, an ionic liquid, and a polymer, wherein the carbon nanofibers comprise a melt spun aromatic mesophase pitch, wherein the carbon nanofibers comprise activated carbon nanofibers, wherein the actuator deforms when a potential difference is applied across the electroconductive films. 2. The actuator element according to claim 1 , wherein the actuator can operate repeatedly with no substantial decay of displacement for 8,000 seconds or longer at a certain voltage. 3. The actuator element according to claim 1 , further comprising an ion-conductive layer, wherein the at least two electroconductive films provided in a mutually insulative state on the opposing surfaces of the ion-conductive layer. 4. An actuator element comprising: an electrolyte membrane including a polymer and an ionic liquid; and at least two electroconductive films provided in a mutually insulative state on the opposing surfaces of the electrolyte membrane, wherein each electroconductive film is formed from a gel composition including carbon nanofibers, an ionic liquid, and a polymer, wherein the carbon nanofibers comprise a melt spun aromatic mesophase pitch, wherein the actuator deforms when a potential difference is applied across the electroconductive films, and the actuator can operate repeatedly with no substantial decay of displacement for 8,000 seconds or longer at a certain voltage. 5. The electroconductive film for an actuator according to claim 4 , wherein the carbon nanofibers are selected from the group consisting of carbon nanofibers, activated carbon nanofibers, and a combination thereof. 6. The electroconductive film for an actuator according to claim 4 , wherein the carbon nanofibers comprise activated carbon nanofibers. 7. The actuator element according to claim 4 , further comprising an ion-conductive layer, wherein the at least two electroconductive films provided in a mutually insulative state on the opposing surfaces of the ion-conductive layer.
Assignees
Inventors
Classifications
of synthetic resin · CPC title
using fillers, pigments, thixotroping agents · CPC title
Fiber embedded in or on the surface of a polymeric matrix · CPC title
Insulators · CPC title
Carbon fibres, e.g. graphite fibres · CPC title
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Frequently asked questions
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- What does patent US10199561B2 cover?
- An electroconductive film for an actuator is formed from a gel composition including carbon nanofibers, an ionic liquid, and a polymer. The carbon nanofibers are produced with an aromatic mesophase pitch by melt spinning.
- Who is the assignee on this patent?
- Aist, Univ Gunma Nat Univ Corp, Alps Electric Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B82Y30/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 05 2019 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).