Rapid microwave-assisted refluxing synthesis of hierarchical mulberry-shaped Na3V2(PO4)(2)O2F@C as high performance cathode for sodium & lithium-ion batteries

Hou, Yan1,2; Chang, Kun3; Wang, Zhenyu2; Gu, Shuai2; Liu, Qiong2; Zhang, Junjun2; Cheng, Hua2; Zhang, Shenglin1; Chang, Zhaorong1; Lu, Zhouguang2

2019-04

10.1007/s40843-018-9342-0

Science China-Materials   影响因子和分区

2095-8226

2199-4501

Unique hierarchical mulberry-shaped Na3V2(PO4)(2)O2F@C nanocomposite was fabricated by a rapid microwave-assisted low-temperature refluxing strategy. The V(acac)(3) reverse micelle systems in the water-in-oil microemulsions played key roles in forming the self-assembly architectures. The prepared Na3V2(PO4)(2)O2F@C nanoparticles with the anisotropic growth along the [002] direction were in-situ encapsulated in carbon shells, which greatly contribute to fast Na+/e(-) transfer in electrodes. And the self-assemblies with high structure stability help to improve the cycle performance and mitigate voltage fading. The initial discharge capacity of Na3V2(PO4)(2)O2F@C as cathode for sodium ion batteries is about 127.9 mA h g(-1) at 0.1 C. Besides, a high rate performance with a capacity of 88.1 mA h g(-1) at 20 C has been achieved, and the capacity retains 82.1% after 2,000 cycles. In addition, the reaction kinetics and Na+ transportation mechanism of Na3V2(PO4)(2)O2F@C were preliminarily investigated by the ex situ X-ray diffraction, X-ray photoelectron spectroscopy and galvanostatic intermittent titration technique. More interestingly, when coupled with Li, the fabricated hybrid Li/Na-ion batteries also exhibit excellent rate and cycling performances. The proposed rapid refluxing strategy to synthesize mulberry-shaped Na3V2(PO4)(2)O2F@C opens up a new opportunity to develop high-performance electrode materials for the energy storage systems.

sodium and lithium ion batteries cathode materials fluorophosphates microwave-assisted refluxing hierarchical self-assembly

SCI ; EI

英语

通讯

Basic Research Project of the Science and Technology Innovation Commission of Shenzhen[JCYJ20170412153139454]

Materials Science

Materials Science, Multidisciplinary

WOS:000462512200003

SCIENCE PRESS

20184305976388

Cathodes ; Data storage equipment ; Electric discharges ; Metal ions ; Micelles ; Microemulsions ; Plants (botany) ; Reaction kinetics ; Self assembly ; Sodium-ion batteries ; Temperature ; X ray photoelectron spectroscopy

Metallurgy:531.1 ; Thermodynamics:641.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Data Storage, Equipment and Techniques:722.1 ; Colloid Chemistry:801.3 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Materials Science:951

Web of Science

1.Henan Normal Univ, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Sch Chem & Chem Engn, Xinxiang 453007, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Natl Inst Mat Sci, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

Hou, Yan,Chang, Kun,Wang, Zhenyu,et al. Rapid microwave-assisted refluxing synthesis of hierarchical mulberry-shaped Na3V2(PO4)(2)O2F@C as high performance cathode for sodium & lithium-ion batteries[J]. Science China-Materials,2019,62(4):474-486.

Hou, Yan.,Chang, Kun.,Wang, Zhenyu.,Gu, Shuai.,Liu, Qiong.,...&Lu, Zhouguang.(2019).Rapid microwave-assisted refluxing synthesis of hierarchical mulberry-shaped Na3V2(PO4)(2)O2F@C as high performance cathode for sodium & lithium-ion batteries.Science China-Materials,62(4),474-486.

Hou, Yan,et al."Rapid microwave-assisted refluxing synthesis of hierarchical mulberry-shaped Na3V2(PO4)(2)O2F@C as high performance cathode for sodium & lithium-ion batteries".Science China-Materials 62.4(2019):474-486.