Corrigendum: A Polyionic, Large‐Format Energy Storage Device Using an Aqueous Electrolyte and Thick‐Format Composite NaTi2(PO4)3/Activated Carbon Negative Electrodes. Issue 8 (31st July 2015) - Whitacre, J. F.; Shanbhag, S.; Mohamed, A.; Polonsky, A.; Carlisle, K.; Gulakowski, J.; Wu, W.; Smith, C.; Cooney, L.; Blackwood, D.; Dandrea, J. C.; Truchot, C.