High-capacity and ultrastable lithium storage in SnSe<sub>2</sub>–SnO<sub>2</sub>@NC microbelts enabled by heterostructures
Haibin Sun, Wenjie Wang, Lianduan Zeng, Congcong Liu, Shuangshuang Liang, Wenhe Xie, Shasha Gao, Shenghong Liu, Xiao Wang
Abstract
SnSe 2 –SnO 2 @NC were investigated for lithium-ion batteries with a capacity of 1023.5 mA h g −1 at 0.2 A g −1 and a capacity of 632.7 mA h g −1 after 2800 cycles at 5 A g −1 . DFT calculations revealed the high adsorption energy of SnSe 2 –SnO 2 .
Topics & Concepts
AnodeMaterials scienceLithium (medication)HeterojunctionTinNanoparticleElectrical resistivity and conductivityAdsorptionNanotechnologyEnergy storageChemical engineeringConductivityOptoelectronicsElectrodeChemistryPhysical chemistryMetallurgyPhysicsMedicineQuantum mechanicsEndocrinologyElectrical engineeringEngineeringPower (physics)Advancements in Battery MaterialsAdvanced Battery Materials and TechnologiesSupercapacitor Materials and Fabrication