New tris- and pentakis-fused donors containing extended tetrathiafulvalenes: New positive electrode materials for rechargeable batteries oleh Shintaro Iwamoto, Yuu Inatomi, Daisuke Ogi, Satoshi Shibayama, Yukiko Murakami, Minami Kato, Kazuyuki Takahashi, Kazuyoshi Tanaka, Nobuhiko Hojo, Yohji Misaki