Navigation Links
Dip ordinary paper into ink infused with nanotubes and nanowires to create an instant battery
Date:12/7/2009

Stanford scientists are harnessing nanotechnology to quickly produce ultra-lightweight, bendable batteries and supercapacitors in the form of everyday paper.

Simply coating a sheet of paper with ink made of carbon nanotubes and silver nanowires makes a highly conductive storage device, said Yi Cui, assistant professor of materials science and engineering.

"Society really needs a low-cost, high-performance energy storage device, such as batteries and simple supercapacitors," he said.

Like batteries, capacitors hold an electric charge, but for a shorter period of time. However, capacitors can store and discharge electricity much more rapidly than a battery.

Cui's work is reported in the paper "Highly Conductive Paper for Energy Storage Devices," published online this week in the Proceedings of the National Academy of Sciences.

"These nanomaterials are special," Cui said. "They're a one-dimensional structure with very small diameters." The small diameter helps the nanomaterial ink stick strongly to the fibrous paper, making the battery and supercapacitor very durable. The paper supercapacitor may last through 40,000 charge-discharge cycles at least an order of magnitude more than lithium batteries. The nanomaterials also make ideal conductors because they move electricity along much more efficiently than ordinary conductors, Cui said.

Cui had previously created nanomaterial energy storage devices using plastics. His new research shows that a paper battery is more durable because the ink adheres more strongly to paper (answering the question, "Paper or plastic?"). What's more, you can crumple or fold the paper battery, or even soak it in acidic or basic solutions, and the performance does not degrade. "We just haven't tested what happens when you burn it," he said.

The flexibility of paper allows for many clever applications. "If I want to paint my wall with a conducting energy storage device," Cui said, "I can use a brush." In his lab, he demonstrated the battery to a visitor by connecting it to an LED (light-emitting diode), which glowed brightly.

A paper supercapacitor may be especially useful for applications like electric or hybrid cars, which depend on the quick transfer of electricity. The paper supercapacitor's high surface-to-volume ratio gives it an advantage.

"This technology has potential to be commercialized within a short time," said Peidong Yang, professor of chemistry at the University of California-Berkeley. "I don't think it will be limited to just energy storage devices," he said. "This is potentially a very nice, low-cost, flexible electrode for any electrical device."

Cui predicts the biggest impact may be in large-scale storage of electricity on the distribution grid. Excess electricity generated at night, for example, could be saved for peak-use periods during the day. Wind farms and solar energy systems also may require storage.

"The most important part of this paper is how a simple thing in daily life paper can be used as a substrate to make functional conductive electrodes by a simple process," Yang said. "It's nanotechnology related to daily life, essentially."

Cui's research team includes postdoctoral scholars Liangbing Hu and JangWook Choi, and graduate student Yuan Yang.


'/>"/>

Contact: Dan Stober
dstober@stanford.edu
650-721-6965
Stanford University
Source:Eurekalert  

Related biology technology :

1. Graphene yields secrets to its extraordinary properties
2. Extraordinary General Meetings Statement -- XTL Also Announces Board and Management Changes
3. XTL Biopharmaceuticals Ltd. Extraordinary General Meetings Postponed Until March 18, 2009
4. Corrected: XTL Biopharmaceuticals to Convene Extraordinary Shareholders Meetings after Receipt of Shareholder Letter
5. XTL Biopharmaceuticals to Convene Extraordinary Shareholders Meetings after Receipt of Shareholder Letter
6. Extraordinary General Meetings Statement - XTL Notifies NASDAQ of Compliance with Marketplace Rule 4350(d)(2)
7. Warburg Pincus Acquires 5.4% of WuXi PharmaTechs Outstanding Ordinary Shares from United Overseas Bank
8. Notification of Record Date for the Annual General Meeting and Extraordinary General Meeting
9. Application for Listing of Shire Limited Ordinary Shares
10. CURE Magazine Announces Winner of 2008 Extraordinary Healer Award
11. Results of Court Meeting and Extraordinary General Meeting - Shareholders Approve Scheme of Arrangement and New Share Plans
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Dip ordinary paper into ink infused with nanotubes and nanowires to create an instant battery
(Date:12/8/2016)... ... December 08, 2016 , ... ... their exceptionally efficient human mesenchymal stem/stromal cell (hMSC) expansion medium. This ... products engineered to radically streamline culture processes, minimize processing time, significantly decrease ...
(Date:12/8/2016)...  HedgePath Pharmaceuticals, Inc. (OTCQX: HPPI), a clinical ... to commercialize innovative therapeutics for patients with cancer, ... approved for trading on the OTCQX U.S. market. ... effective today, under the ticker symbol "HPPI." ... must meet high financial standards, follow best practice ...
(Date:12/7/2016)... ... December 07, 2016 , ... ACEA Biosciences, Inc. presented ... expansion clinical trial for its lead drug candidate, AC0010, at the World Conference ... was to determine the safety, antitumor activity, and recommended phase II dosage of ...
(Date:12/7/2016)... 2016 /PRNewswire/ - Zenith Capital Corp. ("Zenith" or the "Company") announces ... at the Company,s Annual and Special Meeting. ... place on Thursday, December 15, 2016 at Mount ... EC1040), 4825 Mount Royal Gate SW, Calgary, Alberta ... meeting and management information circular, containing the matters to be ...
Breaking Biology Technology:
(Date:12/2/2016)... , December 1, 2016 ... type (Fingerprint, Voice), Future Technology (Iris Recognition System), ... Region - Global Forecast to 2021", published by ... 442.7 Million in 2016, and is projected to ... a CAGR of 14.06%.      (Logo: ...
(Date:11/30/2016)... , Nov. 30, 2016  higi SH llc ... partnership initiative targeting national brands, industry thought-leaders and ... their respective audiences for taking steps to live ... inception in 2012, higi has built the largest ... over 38 million people who have conducted over ...
(Date:11/29/2016)... France , November 29, 2016 Nearly one ... Continue Reading ... ... is part of an efficient Identity Management. (PRNewsFoto/DERMALOG Identification Systems) ... DERMALOG is Germany's largest Multi-Biometric supplier: ...
Breaking Biology News(10 mins):