Does anyone want to comment on flow batteries? E.g. http://www.cbc.ca/news/technology/organic-battery-hailed-as-cheap-renewable-energy-solution-1.2489300 http:

Does anyone want to comment on flow batteries? E.g. http://www.cbc.ca/news/technology/organic-battery-hailed-as-cheap-renewable-energy-solution-1.2489300 http://www.cbc.ca/news/technology/organic-battery-hailed-as-... I assume the primary issue now is cost, but if you can decouple the reaction -> electricity engine from the reactants to a greater degree, then it sounds attractive? I imagine increasing storage tankage is a much easier problem to solve than increasing energy density.