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Media type:
E-Book
Title:
Stabilized Anode-Electrolyte Interfaces Via Cs4pb(Cl/Br/I)6 Perovskite Crystal Based Glass-Ceramics for Fast and Long Cycle-Life Li-Ion Batteries
Description:
Alternative choices of anode materials in Li-ion batteries (LiBs) have drawn great attention for the urgent demands of rapid charging, however, the severe interface problems remain a bottleneck for anode development. Based on the high reducibility of halogen elements, herein a smart anode/liquid electrolyte interface is designed for the high energy density batteries that present large specific capacity retentions of about 510.5 mAh∙g -1 (Cl-matrix) and 429.6 mAh∙g -1 (Br-matrix) at the current density of 5 A∙g -1 after cycling 1000 times. As a novel anode material, the low-dimension halide perovskite microcrystals Cs 4 Pb(Cl/Br/I) 6 embedded in the glass matrix present high ionic conductivity (10 -5 ~ 10 -4 S∙cm -1 ) that enables fast charge transfer, and the smoother interfacial resistance has rendered more reversible Li-ions transport. In addition, the simple heat-treatment based synthesis method has significant economic benefits that might drive the crystal-in-glass composite material as a promising new generation anode for rechargeable LiBs