Erratum: In Situ Studies of Fe4+ Stability in Li3Fe2(PO4)3 Cathodes for Li Ion Batteries [J. Electrochem. Soc., 162, A531 (2015)]. Issue 6 (1st January 2015) - Christiansen, Ane S.; Johnsen, Rune E.; Norby, Poul; Frandsen, Cathrine; Mørup, Steen; Jensen, Søren H.; Hansen, Kent K.; Holtappels, Peter