Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Materials scientists make additive-free battery electrodes with nanoparticles

Provided/Richard Robinson
Nanoparticle battery electrodes deposited through electrophoretic deposition could lead to lighter and more efficient batteries. At top is a schematic of the EPD process. The middle is an electron microscope image of the nanoparticle electrode.
Provided/Richard Robinson

Nanoparticle battery electrodes deposited through electrophoretic deposition could lead to lighter and more efficient batteries. At top is a schematic of the EPD process. The middle is an electron microscope image of the nanoparticle electrode.

Abstract:
Materials scientists have developed a simple, robust way to fabricate carbon-free and polymer-free, lightweight colloidal films for lithium-ion battery electrodes, which could greatly improve battery performance.

Materials scientists make additive-free battery electrodes with nanoparticles

Ithaca, NY | Posted on November 1st, 2012

By Anne Ju

By developing a method for additive-free electrodes that maintain high conductivity, the researchers have opened new possibilities for reducing the weight and volume of batteries, while also creating a template system for studying the physics of nanoparticle electrodes.

The work, led by Richard Robinson, assistant professor of materials science and engineering, and graduate student Don-Hyung Ha, is featured in the Oct. 10 issue of Nano Letters (Vol. 12, No. 10).

Nanoparticles have been extensively investigated as an active cathode and anode in lithium-ion batteries -- common components of electronic devices -- because they can enhance the batteries' electrochemical properties.

To use colloidal nanoparticles for the electrodes, it had been necessary to combine them with carbon-based conductive materials for enhancing charge transport, as well as polymeric binders to stick the particles together and to the electrode substrate, Robinson said. This process added extra weight to the battery and made it difficult to model the movement of Li-ions and electrons through the mixture.

The critical processing technique Robinson and colleagues used was electrophoretic deposition, which binds the metal nanoparticles to the surface of the electrode substrate to each other in an assembly, creating strong electrical contacts between the particles and current collector.

The process results in a significant improvement in battery electrode assembly that cannot be replicated by conventional methods. Once attached, the particles are no longer soluble and are mechanically robust. In fact, this processing creates a film that has superior mechanical stability when compared to films fabricated by conventional battery-making methods with binders, Robinson said.

This research has led to the first cobalt-oxide nanoparticle-film battery electrode made without using binders and carbon black additives, and they show high gravimetric and volumetric capacities, even after 50 cycles.

The work was supported by the Energy Materials Center at Cornell funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Science; the Cornell Center for Materials Research with funding from the National Science Foundation; and by the King Abdullah University of Science and Technology center at Cornell.

####

For more information, please click here

Contacts:
Media Contact:
John Carberry
(607) 255-5553


Cornell Chronicle:
Anne Ju
(607) 255-9735

Copyright © Cornell University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Sandia use confined nanoparticles to improve hydrogen storage materials performance: Big changes from a small package for hydrogen storage February 25th, 2017

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 2017

Atomic force imaging used to study nematodes: KFU bionanotechnology lab (head - Dr. Rawil Fakhrullin) has obtained 3-D images of nematodes' cuticles February 23rd, 2017

Govt.-Legislation/Regulation/Funding/Policy

Sandia use confined nanoparticles to improve hydrogen storage materials performance: Big changes from a small package for hydrogen storage February 25th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 2017

Atomic force imaging used to study nematodes: KFU bionanotechnology lab (head - Dr. Rawil Fakhrullin) has obtained 3-D images of nematodes' cuticles February 23rd, 2017

Molecular phenomenon discovered by advanced NMR facility: Cutting edge technology has shown a molecule self-assembling into different forms when passing between solution state to solid state, and back again - a curious phenomenon in science - says research by the University of Wa February 22nd, 2017

Discoveries

Sandia use confined nanoparticles to improve hydrogen storage materials performance: Big changes from a small package for hydrogen storage February 25th, 2017

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 2017

Atomic force imaging used to study nematodes: KFU bionanotechnology lab (head - Dr. Rawil Fakhrullin) has obtained 3-D images of nematodes' cuticles February 23rd, 2017

Announcements

Sandia use confined nanoparticles to improve hydrogen storage materials performance: Big changes from a small package for hydrogen storage February 25th, 2017

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 2017

Atomic force imaging used to study nematodes: KFU bionanotechnology lab (head - Dr. Rawil Fakhrullin) has obtained 3-D images of nematodes' cuticles February 23rd, 2017

Energy

Sandia use confined nanoparticles to improve hydrogen storage materials performance: Big changes from a small package for hydrogen storage February 25th, 2017

Strem Chemicals and Dotz Nano Ltd. Sign Distribution Agreement for Graphene Quantum Dots Collaboration February 21st, 2017

'Lossless' metamaterial could boost efficiency of lasers and other light-based devices February 20th, 2017

In-cell molecular sieve from protein crystal February 14th, 2017

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage

Sandia use confined nanoparticles to improve hydrogen storage materials performance: Big changes from a small package for hydrogen storage February 25th, 2017

Tiny nanoclusters could solve big problems for lithium-ion batteries February 21st, 2017

Strem Chemicals and Dotz Nano Ltd. Sign Distribution Agreement for Graphene Quantum Dots Collaboration February 21st, 2017

Breakthrough with a chain of gold atoms: In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport February 20th, 2017

Research partnerships

Sandia use confined nanoparticles to improve hydrogen storage materials performance: Big changes from a small package for hydrogen storage February 25th, 2017

Molecular phenomenon discovered by advanced NMR facility: Cutting edge technology has shown a molecule self-assembling into different forms when passing between solution state to solid state, and back again - a curious phenomenon in science - says research by the University of Wa February 22nd, 2017

Graphene foam gets big and tough: Rice University's nanotube-reinforced material can be shaped, is highly conductive February 13th, 2017

Cedars-Sinai, UCLA Scientists Use New ‘Blood Biopsies’ With Experimental Device to Speed Cancer Diagnosis and Predict Disease Spread: Leading-Edge Research Is Part of National Cancer Moonshot Initiative February 13th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project