GTPN Seminar Series with Professor Nitash Balsara

Event Details
  • Date/Time:
    • Friday March 15, 2019
      4:00 pm - 5:00 pm
  • Location: Molecular Science and Engineering Building, Room 3201A
  • Phone:
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  • Fee(s):
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Professor Mohan Srinivasarao

Sharon Lawrence


Summary Sentence: Negative Diffusion Coefficients in Polymer Electrolytes for Lithium Batteries

Full Summary: In this talk, I will discuss some of the fundamental factors that limit ion transport in polymers. 

  • Balsara Balsara


The need for creating safe electrolytes for lithium batteries is significant given the continued safety problems associated with current lithium-ion batteries.  Nonflammable polymer electrolytes offer a possible solution but the rate of lithium ion transport is too low for practical applications.  In this talk, I will discuss some of the fundamental factors that limit ion transport in polymers.  In all electrolytes, the current generated at steady state is proportional to the applied potential.  The proportionality constant depends on Stefan-Maxwell diffusion coefficients that are negative over a substantial salt concentration range.  The implications of this on battery performance will be discussed.


Professor of Nitash P. Balsara is a chemical engineer with a bachelor's degree from the Indian Institute of Technology in Kanpur, India in 1982, a master's degree from Clarkson University in Potsdam, New York in 1984, and a PhD from Rensselaer Polytechnic Institute in Troy, New York in 1988.    From 1989-1991, he was a post-doctoral researcher, first at the Department of Chemical Engineering and Materials Science at the University of Minnesota, and then at Exxon Research and Engineering Company in Annandale, New Jersey.  In 1992 he joined the faculty of Department of Chemical Engineering at Polytechnic University in Brooklyn, New York.  He was promoted to associate professor in 1996 and professor in 1998.  In 2000 he accepted the job that he currently holds: a joint appointment as professor of Chemical Engineering at the University of California, Berkeley, and faculty scientist at Lawrence Berkeley National Laboratory.  Along with his students and collaborators, he cofounded two battery start-ups, Seeo, Inc., and Blue Current.


Additional Information

In Campus Calendar

Center for the Science and Technology of Advanced Materials and Interfaces (STAMI)

Invited Audience
Faculty/Staff, Postdoc, Public
gtpn, STAMI
  • Created By: Tim Parker
  • Workflow Status: Published
  • Created On: Feb 19, 2019 - 11:47am
  • Last Updated: Feb 28, 2019 - 12:51pm