NASICON-type air-stable and all-climate cathode for sodium-ion batteries with low cost and high-power density

被引：440

作者：

Chen, Mingzhe ^{[1
]}

Hua, Weibo ^{[2
]}

Xiao, Jin ^{[3
,4
]}

Cortiel, David ^{[1
]}

Chen, Weihua ^{[5
]}

Wang, Enhui ^{[1
,6
]}

Hu, Zhe ^{[1
]}

Gu, Qinfen ^{[7
]}

Wang, Xiaolin ^{[1
]}

Indris, Sylvio ^{[2
]}

Chou, Shu-Lei ^{[1
]}

Dou, Shi-Xue ^{[1
]}

机构：

[1] Univ Wollongong, Inst Superconducting & Elect Mat, Australian Inst Innovat Mat, Innovat Campus,Squires Way, North Wollongong, NSW 2522, Australia

[2] Karlsruhe Inst Technol, IAM ESS, D-76344 Eggenstein Leopoldshafen, Germany

[3] Hunan Univ Technol, Sch Sci, Zhuzhou 412007, Peoples R China

[4] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China

[5] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Henan, Peoples R China

[6] Sichuan Univ, Coll Chem Engn, Chengdu 610065, Sichuan, Peoples R China

[7] Australian Synchrotron, 800 Blackburn Rd, Clayton, Vic 3168, Australia

来源：

NATURE COMMUNICATIONS | 2019年 / 10卷 / 1期

基金：

澳大利亚研究理事会; 中国博士后科学基金; 中国国家自然科学基金;

关键词：

PERFORMANCE; NA4FE3(PO4)(2)(P2O7); STATE; NA3V2(PO4)(3); ELECTRODE; GRAPHENE; CRYSTAL; LITHIUM; STORAGE; MN;

D O I：

10.1038/s41467-019-09170-5

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The development of low-cost and long-lasting all-climate cathode materials for the sodium ion battery has been one of the key issues for the success of large-scale energy storage. One option is the utilization of earth-abundant elements such as iron. Here, we synthesize a NASICON-type tuneable Na4Fe3(PO4)(2)(P2O7)/C nanocomposite which shows both excellent rate performance and outstanding cycling stability over more than 4400 cycles. Its air stability and all-climate properties are investigated, and its potential as the sodium host in full cells has been studied. A remarkably low volume change of 4.0% is observed. Its high sodium diffusion coefficient has been measured and analysed via first-principles calculations, and its three-dimensional sodium ion diffusion pathways are identified. Our results indicate that this low-cost and environmentally friendly Na4Fe3(PO4)(2)(P2O7)/C nanocomposite could be a competitive candidate material for sodium ion batteries.

引用

页数：11

共 59 条

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