Self-Limited and Reversible Surface Hydration of Na
3 · Self-Limited and Reversible Surface Hydration of Na 2 Fe(SO 4) 2 Cathodes for Long-Cycle-Life Na-ion Batteries Author links open overlay panel Zhilin Zheng 1, Xiaoqiao Li 1, Yong Wang 1, Yunlong Zhang 1 2, Yufeng Jiang 3, Yu-Shi He 1, Chao Niu 5, Haiying Che 2, Linsen Li 1 6, Zi-Feng Ma 1 2 4