SnO2 nanosheets grow on sunflower shell carbon sphere used as anode material for high performance lithium-ion and potassium-ion batteries

被引：14

作者：

Hu, Zhiqing ^{[1
,2
]}

Wang, Mingyang ^{[1
,2
]}

Yang, Huimin ^{[1
]}

Liang, Ce ^{[1
]}

Yu, Kaifeng ^{[1
]}

机构：

[1] Jilin Univ, Coll Mat Sci & Engn, Key Lab Automobile Mat, Minist Educ, Changchun 130025, Peoples R China

[2] Jilin Univ, Roll Forging Res Inst, Changchun 130025, Jilin, Peoples R China

来源：

关键词：

Sunflower seed shell; Carbon sphere; lithium-ion batteries; Potassium-ion batteries; POROUS CARBON; NANOSTRUCTURES; COMPOSITES; HUSK;

D O I：

10.1016/j.diamond.2022.109090

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SnO2 nanosheets were uniformly dispersed on sunflower seed shell based carbon microspheres by a simple onestep hydrothermal method, and the obtained composite was applied as a high-performance hard carbon anode material for lithium-ion and potassium-ion batteries. The introduction of sunflower seed shell based carbon spheres not only provides the support frame and growth site for SnO2 nanosheets, but also prevents the aggregation of flower-like structures to a certain extent. Moreover, the sunflower seed shell based carbon spheres have superior electrical properties. The results show that the composite can maintain 901.2 mAh g(-1) after 400 cycles at 782 mA g(-1), demonstrating stable reversible cycling under high current. The potassium ion battery show that the composite can maintain 201.9 mAh g(-1) after 350 cycles at 374 mA g(-1). This study provides a simple and convenient method for preparing prickly ball-like electrode materials, a promising anode material for potassium-ion batteries (PIBs) and lithium-ion batteries (LIBs).

引用

页数：10