Solid electrolytic capacitor with enhanced mechanical stability under extreme conditions
US-9214285-B2 · Dec 15, 2015 · US
Charge storage device and method of manufacturing it
US9105404B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9105404-B2 |
| Application number | US-201113816336-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 11, 2011 |
| Priority date | Aug 11, 2010 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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The present invention provides a charge storage device, comprising a pair of electrodes, each electrode being operable to store electric charge and having a respective capacitance C P , C N that is different to the other, with the ratio of the capacitances C P /C N being greater than 1. In exemplary embodiments, the charge storage device may be an asymmetrical supercapacitor, which is operable to provide an enhanced energy capacity by increasing the cell voltage through unequalising the electrode capacitance. Hence, by increasing the C P /C N ratio an improved power capability can be achieved over conventional devices, while offering a simple and low cost manufacturing strategy. The present invention has particular application with cameras, electric vehicles, elevators, renewable energy stores, fuel cells, batteries and many forms of electronic devices.
First claim
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The invention claimed is: 1. An asymmetrical supercapacitor, comprising: a pair of electrodes, one being a positive electrode in the form of a nanocomposite of a conductive polymer and the other a negative electrode in the form of a carbon electrode, each electrode being operable to store electric charge and having a respective capacitance C p , C N that is different to the other, with the ratio of the capacitances C p /C N being greater than 1; wherein the supercapacitor has…
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- What does patent US9105404B2 cover?
- The present invention provides a charge storage device, comprising a pair of electrodes, each electrode being operable to store electric charge and having a respective capacitance C P , C N that is different to the other, with the ratio of the capacitances C P /C N being greater than 1. In exemplary embodiments, the charge storage device may be an asymmetrical supercapacitor, which is operabl…
- Who is the assignee on this patent?
- Peng Chuang, Chen George C, Univ Nottingham
- What technology area does this patent fall under?
- Primary CPC classification H01G11/22. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 11 2015 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).