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A ferroelectric field-engineered carboxylated cellulose/BaTiO3 separator for dendrite-free and stable sodium metal
Genmiao Guo1, Yun Zhang1, Wenjie Zhang1
1Institute for Energy Research, Jiangsu University, Zhenjiang 212013, P. R. China. jblian@ujs.edu.cn.
Abstract:
The built-in electric field induced by BaTiO3 homogenizes the interfacial charge distribution, which can facilitate the Na+ ion diffusion and effectively suppress sodium dendrite formation at the source. Such a ferroelectric carboxylated cellulose/BaTiO3 separator enables long-term cycling stability of sodium metal batteries.

