Influence of metal-organic framework MOF-76(Gd) activation/carbonization on the cycle performance stability in Li-S battery

被引：34

作者：

Capkova, D. ^{[1
]}

Kazda, T. ^{[2
]}

Cech, O. ^{[2
,3
]}

Kiraly, N. ^{[4
]}

Zelenka, T. ^{[5
]}

Cudek, P. ^{[2
]}

Sharma, A. ^{[6
]}

Hornebecq, V. ^{[7
]}

Almasi, M. ^{[4
]}

Fedorkova, A. Strakova ^{[1
]}

机构：

[1] Pavol Jozef Safarik Univ Kosice, Fac Sci, Dept Phys Chem, Moyzesova 11, Kosice 04154, Slovakia

[2] Brno Univ Technol, Fac Elect Engn & Commun, Dept Elect & Elect Technol, Technicka 10, Brno 61600, Czech Republic

[3] CEITEC Brno Univ Technol, Purkynova 123, Brno 61200, Czech Republic

[4] Pavol Jozef Safarik Univ Kosice, Fac Sci, Dept Inorgan Chem, Moyzesova 11, Kosice 04154, Slovakia

[5] Univ Ostrava, Fac Sci, Dept Chem, 30 dubna 22, Ostrava 70200, Czech Republic

[6] Cent Univ Haryana, Sch Engn & Technol, Dept Phys, Mahendergarh 123031, India

[7] Aix Marseille Univ, CNRS, MADIREL, F-13397 Marseille, France

来源：

JOURNAL OF ENERGY STORAGE | 2022年 / 51卷

关键词：

Metal-organic framework; MOF-76(Gd); Lithium-sulphur batteries; Sulphur cathode; Cycling stability; COORDINATION POLYMERS; ELECTRODE MATERIALS; CATHODE MATERIALS; SULFUR; ION; MOF; FABRICATION; COMPOSITES; ADSORPTION; CONVERSION;

D O I：

10.1016/j.est.2022.104419

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Carbon materials are widely used as sulphur support to improve the cycle performance, efficiency, electrode stability and high discharge capacity of lithium-sulphur batteries. Metal-organic frameworks with their unique structure can confine polysulphides and restrain the shuttle effect. Microporous metal-organic framework MOF-76(Gd) was synthesized and applied as a support for sulphur in lithium-sulphur batteries. To achieve better conductivity, MOF-76(Gd) was carbonized and applied as a conductive nest in the sulphur cathode. Activated (AC) and carbonized (C) MOF-76(Gd) in electrode material displayed sulphur encapsulation and polysulphide confinement which was proved by stable capacity during cycling. The carbonized MOF-76(Gd) in cathode ma-terial showed an initial discharge capacity of 658 mAh g(-1), and after 200 cycles at 0.5 ?C, the capacity retention was almost 93%.

引用

页数：15

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