摘要
A SPPEK/WO3 hybrid membrane was fabricated by a hydrothermal method to improve its performance in vanadium redox flow battery (VRB). The morphology of the hybrid membrane revealed that WO3 phase was well formed in the SPPEK matrix. At 50 mA/cm2, the VRB single cell with SPPEK/WO3 membrane presented a lower self-discharge rate (218 h above 0.8 V) and a higher coulombic and energy efficiency (98.07%and 78.06%), ascribed to its higher ionic selectivity (5.81 脳 104 min S/cm3), compared with Nafion system. The hybrid membrane exhibited a stable performance during 100 cycles.