Venkat Viswanathan

Department of Mechanical Engineering, Carnegie Mellon University
Ph.D., Mechanical Engineering, Stanford University, 2013
Summary:

Venkat Viswanathan's research focus is on identifying the scientific principles governing material design, inorganic, organic and biomaterials, for novel energy conversion and storage routes. The material design is carried out through a suite of computational methods being developed in the group validated by experiments.  Some key research thrusts include identifying principles of electrolytes design (organic material) that can tune electrode catalysis, identification of new anode, cathode (inorganic materials) and electrolyte materials for next generation batteries, new electrocatalysts (inorganic) and biomaterials for energy storage and separation applications. In addition to material design, our group is involved in several cross-cutting areas such as battery controls, electric vehicle security and GPU accelerated computing.

Research interests:

  • Computational material design
  • Density functional theory simulations
  • Phase-field modeling
  • Next generation batteries, fuel cells
  • Electrocatalysis for energy conversion and storage
  • Data-driven material discovery
  • Bio-inspired and bio-mimetic materials
  • Controls for energy systems
  • GPU accelerated computing
Most Cited Publications: 
  1. "Twin Problems of Interfacial Carbonate Formation in Nonaqueous Li–O2 Batteries," B. D. McCloskey, A. Speidel, R. Scheffler, D. C. Miller, V. Viswanathan, J. S. Hummelshøj, J. K. Nørskov, and A. C. Luntz, J. Phys. Chem. Lett. 3, 997 (2012)
  2. "Electrical conductivity in Li2O2 and its role in determining capacity limitations in non-aqueous Li-O2 batteries," V. Viswanathan, K. S. Thygesen, J. S. Hummelshøj, J. K. Nørskov, G. Girishkumar, B. D. McCloskey and A. C. Luntz, J. Chem. Phys. 135, 214704 (2011)
  3. "Solvating additives drive solution-mediated electrochemistry and enhance toroid growth in non-aqueous Li–O2 batteries" Nagaphani B. Aetukuri, Bryan D. McCloskey, Jeannette M. García, Leslie E. Krupp, Venkatasubramanian Viswanathan & Alan C. Luntz, Nature Chemistry 7, 50 (2015)
  4. "Universality in Oxygen Reduction Electrocatalysis on Metal Surfaces," Venkatasubramanian Viswanathan, Heine Anton Hansen, Jan Rossmeisl, and Jens K. Nørskov, ACS Catal. 2, 1654 (2012)
  5. "Direct observation of the oxygenated species during oxygen reduction on a platinum fuel cell cathode," Hernan Sanchez Casalongue, Sarp Kaya, Venkatasubramanian Viswanathan, Daniel J. Miller, Daniel Friebel, Heine A. Hansen, Jens K. Nørskov, Anders Nilsson & Hirohito Ogasawara, Nature Communications 4, 2817 (2013)
Recent Publications: 
  1. "Plug-in hybrid electric vehicle LiFePO4 battery life implications of thermal management, driving conditions, and regional climate," Tugce Yuksel, Shawn Litster, Venkatasubramanian Viswanathan, Jeremy J. Michalek, Journal of Power Sources 338, 49e64 (2017)
  2. "Criteria and Considerations for the Selection of Redox Mediatiors in Nonaqueous Li–O2 Batteries," Vikram Pande and Venkatasubramanian ViswanathanACS Energy Lett. 2, 60 (2017)
  3. "Rational design of new electrolyte materials for electrochemical double layer capacitors," Christoph Schütter, Tamara Husch, Venkatasubramanian Viswanathan, Stefano Passerinia, Andrea Balduccia, Martin Korth, Journal of Power Sources 326, 541e548 (2016)
  4. "Quantifying Uncertainty in Activity Volcano Relationships for Oxygen Reduction Reaction," Siddharth Deshpande, John R. Kitchin, and Venkatasubramanian Viswanathan, ACS Catal. 6, 5251 (2016)
  5. "Universality in Nonaqueous Alkali Oxygen Reduction on Metal Surfaces: Implications for Li–O2 and Na–O2 Batteries," Dilip Krishnamurthy, Heine Anton Hansen, and Venkatasubramanian Viswanathan, ACS Energy Lett. 1, 162 (2016)

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