Enhanced Electrochemical Properties of γ-MnS@rGO Composite as Anodes for Lithium-Ion Batteries

被引：7

作者：

Nam, Wonbin ^{[1
,2
]}

Seong, Honggyu ^{[1
,2
]}

Moon, Joon Ha ^{[1
,2
]}

Jin, Youngho ^{[1
,2
]}

Kim, Geongil ^{[1
,2
]}

Yoo, Hyerin ^{[1
,2
]}

Jung, Taejung ^{[1
,2
]}

Yang, MinHo ^{[3
]}

Cho, Se Youn ^{[4
]}

Choi, Jaewon ^{[1
,2
]}

机构：

[1] Gyeongsang Natl Univ, Dept Chem, Jinju 52828, South Korea

[2] Gyeongsang Natl Univ, Res Inst Nat Sci, Jinju 52828, South Korea

[3] Dankook Univ, Dept Energy Engn, Cheonan 31116, South Korea

[4] Korea Inst Sci & Technol, Inst Adv Composite Mat, Wanju Gun 55324, South Korea

来源：

BATTERIES & SUPERCAPS | 2023年 / 6卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

anode materials; lithium-ion batteries; gamma-MnS; reduced graphene oxide; GRAPHENE OXIDE; ENERGY-STORAGE; NANOCOMPOSITES; CHALLENGES; LIFE;

D O I：

10.1002/batt.202300274

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Manganese sulfide (MnS) is a metal chalcogenide with a high theoretical capacity (616 mAhg(-1)) and can be used as an alternative anode material for lithium-ion batteries. Generally, metal chalcogenides have intrinsic limitations, such as low stability resulting from volume expansion and poor electronic conductivity. Herein, the authors propose a synthesis strategy of nano-sized gamma-MnS, and one-step composite process by the growth of nanoparticles on the surface of reduced graphene oxide (rGO). These strategies can effectively prevent particle aggregation and enhance an electrochemical stability. The electrochemical performance of the gamma-MnS@rGO composite was evaluated using cyclic voltammetry (CV) and galvanostatic charge and discharge measurements. The results showed that the gamma-MnS@rGO composite delivered a high specific capacity (624 mAhg(-1) at 0.5 Ag-1 after 100 cycles), good cycling stability, and excellent rate capability compared to bare gamma-MnS.

引用

页数：7

共 42 条

[1] Facile green synthesis of ZnO-RGO nanocomposites with enhanced anticancer efficacy [J].