New Path Forward for Next-Generation Li-ion Batteries

News Release Julie Chao (510) 486-6491 • MAY 30, 2016 


Gerd Ceder and his postdocs - Battery Research - Materials Sciences Division, Berkeley Lab.

A new study by Berkeley Lab researchers Dong-Hwa Seo, Alex Urban, Jinhyuk Lee, and Gerd Ceder (from left) sheds light on how lithium-rich cathodes work, opening the door to higher capacity batteries. (Credit: Roy Kaltschmidt/Berkeley Lab)

In the quest for a radically better lithium-ion battery, a promising direction is the so-called “lithium-rich” cathode, in which the cathode contains a higher proportion of lithium than normal. While it has the potential to have far higher energy density, scientists have lacked a clear picture of the chemical processes, especially the role of oxygen.

Now researchers at the Department of Energy’s (DOE) Lawrence Berkeley National Laboratory (Berkeley Lab) report a major advance in understanding how oxygen oxidation creates extra capacity in such cathodes, opening the door to batteries with far higher energy density.

Read more online here:

And find the paper, published online in Nature Chemistry, here: