Hydrolysis of ionic clusters to induce interconnective sieving pores in ion-conductive membranes for vanadium flow batteries† Bo Pang,a Zihao Fan,a Wanting Chen,a Xiaoming Yan, a Ruohan Du,a Xiaozhou Wang,a Xuemei Wu, *a Fujun Cui,b Minggang Guob and Gaohong He *ab Abstract Interconnective sieving pores are fabricated by the hydrolysis of ionic clusters in precursor ion-conductive membranes to provide a versatile strategy for the proton transport-ion selectivity trade-off in vanadium flow...