@misc{Muenzel2014_Conversation,
  title = "Affordable batteries for green energy are closer than we think",
  author = "Valentin Muenzel and Iven Mareels and Julian de Hoog and Arun Vishwanath and  Shivkumar Kalyanaraman",
  year = "2014",
  url = "http://theconversation.com/affordable-batteries-for-green-energy-are-closer-than-we-think-28772",
  month = "July",
  note = "Online.  Accessed 24 July 2014."
}