Jonathon Harding
Jonathon Harding, Ph.D.
Senior Associate
Materials & Corrosion Engineering
Natick

Dr. Harding is trained as a chemical engineer and has experience investigating advanced electrochemical storage systems, identifying polymer degradation mechanisms, and designing quantitative laboratory equipment. Dr. Harding uses his technical training and expertise to characterize the performance, materials, and construction of batteries and other electrochemical systems and identify the root cause of their failure. To complete his analysis of such systems, Dr. Harding uses techniques including electrochemical impedance spectroscopy (EIS), reference electrode testing, analysis of cycling performance, X-ray analysis [X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and computed tomography (CT)], cross-sectioning, and device teardowns. Dr. Harding is experienced with MATLAB and Python to perform programmatic analysis and presentation of large data sets, and uses CAD software for rapid prototyping of test equipment.

Prior to joining Exponent, Dr. Harding was a graduate research assistant in the Department of Chemical Engineering at the Massachusetts Institute of Technology. He worked in the Electrochemical Energy Lab and the Hammond Lab to develop a polymer electrolyte-based lithium–oxygen battery, and additionally investigated the efficacy of catalysts for the oxygen-evolution reaction in nonaqueous lithium–oxygen batteries. Over the course of this work, Dr. Harding designed and constructed a differential electrochemical mass spectrometer to characterize the consumption and production of gases in these devices. Dr. Harding obtained his Masters in Chemical Engineering Practice in 2012 based on engineering consulting work performed at Novartis in Basel, Switzerland and at SGC Energia in Güssing, Austria.

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Chemical Engineering, Massachusetts Institute of Technology (MIT), 2015
  • M.S., Chemical Engineering, Massachusetts Institute of Technology (MIT), 2012
  • B.S., Chemical Engineering, North Carolina State University, 2008
  • MIT Energy Initiative Fellow

    Valedictorian, NC State, class of 2008

    Eagle Scout

LANGUAGES

  • German

Publications

Harding JR, Amanchukwu CV, Hammond PT, Shao-Horn Y. Instability of Poly(ethylene oxide) upon oxidation in lithium-air batteries. Journal of Physical Chemistry C 2015; 119:6947–6955. DOI: 10.1021/jp511794g.

Harding JR, Lu Y-C, Tsukada Y, Shao-Horn Y. Evidence of catalyzed oxidation of Li2O2 for rechargeable Li-air battery applications. Physical Chemistry Chemical Physics : PCCP 2012; 14:10540–10546. DOI: 10.1039/c2cp41761h.

Amanchukwu CV, Harding JR, Shao-Horn Y, Hammond PT. Understanding the Chemical stability of polymers for lithium-air batteries. Chemistry of Materials 2014; 27:550–561. DOI: 10.1021/cm5040003.

Lee SH, Harding JR, Liu DS, D’Arcy JM, Shao-Horn Y, Hammond PT. Li-anode protective layers for Li rechargeable batteries via layer-by-layer approaches. Chemistry of Materials 2014; 26:2579–2585. DOI: 10.1021/cm404154u.

Lu Y-C, Gallant BM, Kwabi DG, Harding JR, Mitchell RR, Whittingham MS, Shao-Horn Y. Lithium-oxygen batteries: Bridging mechanistic understanding and battery performance. Energy & Environmental Science 2013; 6:750–768. DOI: 10.1039/C3EE23966G.

Lu Y-C, Crumlin EJ, Veith GM, Harding JR, Mutoro E, Baggetto L, Dudney NJ, Liu Z, Shao-Horn Y. In situ ambient pressure x-ray photoelectron spectroscopy studies of lithium-oxygen redox reactions. Scientific Reports 2012; 2. DOI: 10.1038/srep00715.

Lu Y-C, Kwabi DG, Yao KPC, Harding JR, Zhou J, Zuin L, Shao-Horn Y. The discharge rate capability of rechargeable Li-O2 batteries. Energy & Environmental Science 2011; 4:2999–3007. DOI: 10.1039/C1EE01500A.

Tang C, Saquing CD, Harding JR, Khan SA. In situ cross-linking of electrospun poly(vinyl alcohol) nanofibers. Macromolecules 2009; 43:630–637. DOI: 10.1021/ma902269p.

Talwar S, Harding J, Oleson KR, Khan SA. Surfactant-mediated modulation of hydrophobic interactions in associative polymer solutions containing cyclodextrin. Langmuir 2008; 25:794–802. DOI: 10.1021/la803056e.

Presentations

Harding JR, Lu Y-C Hammond PT, Shao-Horn Y. Investigations of Li-O2 batteries using polyethylene oxide in three-phase electrodes metal-air batteries. 2012 PRiME Pacific Rim Meeting on Electrochemical and Solid-State Science, Honolulu, HI, October 9, 2012.

Harding JR, Lu Y-C, Tsukada Y, Shao-Horn Y. The influence of catalysts on electro-oxidation activity of lithium peroxide/oxide for lithium-air batteries. Mobile Energy, 2011 MRS Fall Meeting & Exhibit, Boston, MA, November 30, 2011.

Harding JR, Talwar S, Khan SA. Manipulating hydrophobic interactions in associative polymer solutions via surfactant-cyclodextrin complexation. ACS Colloid & Surface Science Symposium, Raleigh, NC, June 15–18, 2008.

Prior Experience

Graduate Research Assistant, Massachusetts Institute of Technology, 2009-2015

Graduate Teaching Assistant, Massachusetts Institute of Technology, 2012

Undergraduate Research Assistant, NC State University, 2007-2009

Professional Affiliations

The Electrochemical Society—ECS

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Chemical Engineering, Massachusetts Institute of Technology (MIT), 2015
  • M.S., Chemical Engineering, Massachusetts Institute of Technology (MIT), 2012
  • B.S., Chemical Engineering, North Carolina State University, 2008
  • MIT Energy Initiative Fellow

    Valedictorian, NC State, class of 2008

    Eagle Scout

LANGUAGES

  • German