New coating could have big implications for lithium batteries

TRADELABOR has more than 20 years of experience in the control and treatment of air, working with an experienced and qualified technical staff and with the most advanced technology in this area, which together guarantee the quality of the services provided.

 

 

A new coating developed by the Argonne National Laboratory provides extra layer of protection for battery cathodes.

Building a better lithium-ion battery involves addressing a myriad of factors simultaneously, from keeping the battery’s cathode electrically and ionically conductive to making sure that the battery stays safe after many cycles.

In a new discovery, scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have developed a new cathode coating by using an oxidative chemical vapor deposition technique that can help solve these and several other potential issues with lithium-ion batteries all in one stroke.

The researchers took particles of Argonne’s pioneering nickel-manganese-cobalt (NMC) cathode material and encapsulated them with a sulfur-containing polymer called PEDOT. This polymer provides the cathode a layer of protection from the battery’s electrolyte as the battery charges and discharges.

Additional layer of shielding

Unlike conventional coatings, which only protect the exterior surface of the micron-sized cathode particles and leave the interior vulnerable to cracking, the PEDOT coating had the ability to penetrate to the cathode particle’s interior, adding an additional layer of shielding.

In addition, although PEDOT prevents the chemical interaction between the battery and the electrolyte, it does allow for the necessary transport of lithium ions and electrons that the battery requires in order to function.

Continue at: https://www.european-coatings.com/Raw-materials-technologies/Technologies/New-coating-could-have-big-implications-for-lithium-batteries/(cpg)/LA0093?cpg=LA0093&utm_source=newsletter&utm_medium=email&utm_campaign=EC-NL-2019-06-12&utm_content=New-coating-could-have-big-implications-for-lithium-batteries&uid=678731

Manostaxx
Manostaxx

 

http://www.manostaxx.com

 

 

Leave a Reply

Your email address will not be published. Required fields are marked *