Effect of Crystallinity of Synthetic Graphite on Electrochemical Potassium Intercalation into Graphite oleh Daisuke IGARASHI, Kei KUBOTA, Tomooki HOSAKA, Ryoichi TATARA, Tsuyoshi INOSE, Yuji ITO, Hirofumi INOUE, Masataka TAKEUCHI, Shinichi KOMABA