Our lives have been changed by lithium-ion (Li-ion) batteries which are everywhere: in our cell phones, cars, toys, power tools and grid energy storage. Indeed, the 2019 Nobel Prize in Chemistry was awarded to the three scientists who invented and developed them. As the world manufactures more and more Li-ion batteries, what are the challenges and opportunities for recycling them? How can we prevent the batteries from ending up in landfills where the toxic metals inside can leak out? In this episode, we talk with Dr. Zheng Chen, a professor of nanoengineering at the University of California, San Diego, and co-author on the paper “Efficient Direct Recycling of Lithium-Ion Battery Cathodes by Targeted Healing” published a few weeks ago in the journal Joule.
Hosts: Jill Sjong, Joel Parker
Feature: Shelley Schlender
Executive Producer: Beth Bennett
Show Producer: Joel Parker
Engineer: Sam Fuqua
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How clean is “clean”? How do you get clean, and how important is it…could it actually be advantageous to your skin and general health to not try to get too clean? We talk with medical doctor and author 
Five years ago today on July 14, 2015, the 
With graduation season is upon us, today’s edition of How on Earth is our annual “Graduation Special”. Our guests in the studio today are scientists who have or will soon receive their Ph.D. in a STEM-related field. They talk about their thesis research, their grad school experiences, and what they have planned next.
Hayley Sohn – CU Boulder, 
Clement Zheng – CU Boulder, 
Jennifer Berry – CU Boulder, 
This episode talks about research about COVID-19, angiotensin converting enzyme (ACE), and targeted therapies, and our feature is an interview with 
How To [starts at 4:30] 
We talk with 
Creative (Climate) Communications [starts at 7:40] As a climate scientist Professor