Halide Heterogeneous Structure Boosting Ionic Diffusion and High-Voltage Stability of Sodium Superionic Conductors

Fu, Jiamin1,2; Wang, Shuo3; Wu, Duojie4,5; Luo, Jing1; Wang, Changhong4; Liang, Jianwen1; Lin, Xiaoting1; Hu, Yang1; Zhang, Shumin1; Zhao, Feipeng1; Li, Weihan1; Li, Minsi1; Duan, Hui1; Zhao, Yang1; Gu, Meng4,5; Sham, Tsun-Kong2; Mo, Yifei3; Sun, Xueliang1,4

2023-11-01

10.1002/adma.202308012

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

The development of solid-state sodium-ion batteries (SSSBs) heavily hinges on the development of an superionic Na+ conductor (SSC) that features high conductivity, (electro)chemical stability, and deformability. The construction of heterogeneous structures offers a promising approach to comprehensively enhancing these properties in a way that differs from traditional structural optimization. Here, this work exploits the structural variance between high- and low-coordination halide frameworks to develop a new class of halide heterogeneous structure electrolytes (HSEs). The halide HSEs incorporating a UCl3-type high-coordination framework and amorphous low-coordination phase achieves the highest Na+ conductivity (2.7 mS cm(-1) at room temperature, RT) among halide SSCs so far. By discerning the individual contribution of the crystalline bulk, amorphous region, and interface, this work unravels the synergistic ion conduction within halide HSEs and provides a comprehensive explanation of the amorphization effect. More importantly, the excellent deformability, high-voltage stability, and expandability of HSEs enable effective SSSB integration. Using a cold-pressed cathode electrode composite of uncoated Na0.85Mn0.5Ni0.4Fe0.1O2 and HSEs, the SSSBs present stable cycle performance with a capacity retention of 91.0% after 100 cycles at 0.2 C.

composites heterogeneous structure Na+ diffusion solid-state electrolyte UCl3-type framework

SCI ; EI

英语

NI论文

通讯

University of Saskatchewan[2022B1515120013] ; Guangdong Fundamental Research Association[52273225] ; National Natural Science Foundation of China[2019QN01L057] ; Guangdong scientific program[2118838]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001111474200001

WILEY-V C H VERLAG GMBH

20234915151476

Chemical stability ; Copper compounds ; Electrodes ; Iron compounds ; Lanthanum compounds ; Manganese compounds ; Metal ions ; Nickel compounds ; Sodium compounds ; Sodium-ion batteries ; Solid electrolytes ; Solid-State Batteries ; Structural optimization

Metallurgy:531.1 ; Secondary Batteries:702.1.2 ; Chemistry:801 ; Chemical Agents and Basic Industrial Chemicals:803 ; Optimization Techniques:921.5

MATERIALS SCIENCE

2-s2.0-85178199397

Web of Science

1.Univ Western Ontario, Dept Mech & Mat Engn, London, ON N6A 5B9, Canada
2.Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada
3.Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA
4.Eastern Inst Adv Study, Eastern Inst Technol, Ningbo 315200, Zhejiang, Peoples R China
5.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Fu, Jiamin,Wang, Shuo,Wu, Duojie,et al. Halide Heterogeneous Structure Boosting Ionic Diffusion and High-Voltage Stability of Sodium Superionic Conductors[J]. ADVANCED MATERIALS,2023,36(3).

Fu, Jiamin.,Wang, Shuo.,Wu, Duojie.,Luo, Jing.,Wang, Changhong.,...&Sun, Xueliang.(2023).Halide Heterogeneous Structure Boosting Ionic Diffusion and High-Voltage Stability of Sodium Superionic Conductors.ADVANCED MATERIALS,36(3).

Fu, Jiamin,et al."Halide Heterogeneous Structure Boosting Ionic Diffusion and High-Voltage Stability of Sodium Superionic Conductors".ADVANCED MATERIALS 36.3(2023).