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Engineer Making Rechargeable Batteries With Layered Nanomaterials

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January 16, 2013 – Comments (6)

And without much surprise, the magic ingredient is graphene. However, besides this being a cool article about battery technology, is the description of how they are growing these graphene sheets in *ambient pressure* (instead of in a vacuum which most processes today use). Advancements like these are paving the way for graphene to be produced, utilized and commercialized much more efficiently.

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Engineer Making Rechargeable Batteries With Layered Nanomaterials
Jan. 16, 2013
http://www.sciencedaily.com/releases/2013/01/130116102018.htm


A Kansas State University researcher is developing more efficient ways to save costs, time and energy when creating nanomaterials and lithium-ion batteries.

Gurpreet Singh, assistant professor of mechanical and nuclear engineering, and his research team have published two recent articles on newer, cheaper and faster methods for creating nanomaterials that can be used for lithium-ion batteries. In the past year, Singh has published eight articles -- five of which involve lithium-ion battery research.

"We are exploring new methods for quick and cost-effective synthesis of two-dimensional materials for rechargeable battery applications," Singh said. "We are interested in this research because understanding lithium interaction with single-, double- and multiple-layer-thick materials will eventually allow us to design battery electrodes for practical applications. This includes batteries that show improved capacity, efficiency and longer life."

For the latest research, Singh's team created graphene films that are between two and 10 layers thick. Graphene is an atom-thick sheet of carbon. The researchers grew the graphene films on copper and nickel foils by quickly heating them in a furnace in the presence of controlled amounts of argon, hydrogen and methane gases. The team has been able to create these films in less than 30 minutes. Their work appears in the January issue of ACS-Applied Materials and Interfaces in an article titled "Synthesis of graphene films by rapid heating and quenching at ambient pressures and their electrochemical characterization."

The research is significant because the researchers created these graphene sheets by quickly heating and cooling the copper and nickel substrates at atmospheric pressures, meaning that scientists no longer need a vacuum to create few-layer-thick graphene films and can save energy, time and cost, Singh said.

The researchers used these graphene films to create the negative electrode of a lithium-ion cell and then studied the charge and discharge characteristics of this rechargeable battery. They found the graphene films grown on copper did not cycle the lithium ions and the battery capacity was negligible. But graphene grown on nickel showed improved performance because it was able to store and release lithium ions more efficiently.

Read more at: http://www.sciencedaily.com/releases/2013/01/130116102018.htm

6 Comments – Post Your Own

#1) On January 18, 2013 at 3:40 PM, ChrisGraley (29.81) wrote:

I recced you, but that technology is so "5 seconds ago" 

I would prefer a quantum spin liquid battery. ;D

 

http://www.abovetopsecret.com/forum/thread910426/pg1 

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#2) On January 19, 2013 at 4:16 PM, binve (< 20) wrote:

Thanks Chris, and LOL! :) Yep, I am stuck 10 sec in the past :)

But thanks for the link, that is supercool!

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#3) On January 21, 2013 at 2:05 AM, portefeuille (99.66) wrote:

http://4.bp.blogspot.com/-K97fuj4gHF0/UPq7V7j84JI/AAAAAAAAElE/ULZZ5Ppd748/s1600/001-binve_04.png looks good, see https://pbs.twimg.com/media/BAEEwhiCAAAn8fO.png:large ;)

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#4) On January 21, 2013 at 2:32 AM, portefeuille (99.66) wrote:

#3 wrong link, sorry.



enlarge

(from here)

 

I guess we are decent index forecasters :) 

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#5) On January 21, 2013 at 3:28 AM, portefeuille (99.66) wrote:



enlarge

(from here)

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#6) On January 21, 2013 at 11:24 AM, binve (< 20) wrote:

Hey porte, thanks man :) Your chart there has been an amazing forecasting tool for years. I am with checklist when he said that it would prove to be one of the greatest things that ever showed up on the Caps blogs.

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