SPPEK/WO3 hybrid membrane fabricated via hydrothermal method for vanadium redox flow battery
SPPEK/WO3 hybrid membrane fabricated via hydrothermal method for vanadium redox flow battery
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DOI：
10.1016/j.elecom.2012.01.012
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发表时间：
2012-04
影响因子：
5.4
通讯作者：
Nanfang Wang;Sui Peng;Hongmei Wang;Yanhua Li;Suqin Liu;Younian Liu
中科院分区：
文献类型：
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作者：
Nanfang Wang;Sui Peng;Hongmei Wang;Yanhua Li;Suqin Liu;Younian Liu
采用水热法制备了SPPEK/WO 3杂化膜，以提高其在全钒液流电池中的性能。杂化膜的形貌表明，WO 3相在SPPEK基体中形成良好。在50 mA/cm ~ 2下，SPPEK/WO_3膜的VRB单电池具有较低的自放电速率（0.8V以上218 h），较高的库仑效率和能量效率（98.07%和78.06%），这归因于其较高的离子选择性（5.81× 104 minS/cm ~ 3）。杂化膜在100次循环中表现出稳定的性能。
A SPPEK/WO3hybrid 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 WO3phase was well formed in the SPPEK matrix. At 50mA/cm2, the VRB single cell with SPPEK/WO3membrane presented a lower self-discharge rate (218h above 0.8V) and a higher coulombic and energy efficiency (98.07% and 78.06%), ascribed to its higher ionic selectivity (5.81×104minS/cm3), compared with Nafion system. The hybrid membrane exhibited a stable performance during 100cycles.