[25p-E102-1~19] 17.2 Graphene

[25p-E102-19] In-plane micro-supercapacitor using exfoliated graphite by 3D ball mill

〇Akira Watanabe¹, Shinjiro Umeya², Akira Hirakawa², Yasunori Watanabe² (1.IMRAM, Tohoku Univ., 2.KAMEYAMA Iron Works Co., Ltd.)

Keywords:exfoliated graphite, graphene, in-plane micro-supercapacitor

We studied an in-plane micro-supercapacitor (MSC) which was fabricated by laser-annealing of an exfoliated graphite-dispersed polyamide composite film and the patterning of an electrode by laser ablation. The exfoliated graphite was prepared by 3D-ball milling of a vein graphite powder. Because the exfoliated graphite by 3D-ball mill with a high efficiency of has the larger 2D-plane of carbon atoms than commercial graphene powder from natural graphite, a low resistivity of the film and a high performance of the MSC were observed.