In-situ electrochemical research on ion batteries (target in battery failure mechanism), development of in-situ XRD, Raman and XAFS, SEM, TEM, AFM for battery materials; the observation of battery materials will enclose the intrinsic fading mechanism of the battery. Construction of new high-performance electrode materials and new energy storage devices, majorly in V/Mo based material. The development of new material requires the reconstruction of the whole battery system, which may rebuild the battery.