Rechargeable lithium-ion batteries(LIBs)have attracted great attention in various applications.However,high energy density is still a challenge for next-generation lithium ion batteries.Therefore,searching for novel e...Rechargeable lithium-ion batteries(LIBs)have attracted great attention in various applications.However,high energy density is still a challenge for next-generation lithium ion batteries.Therefore,searching for novel electrode materials to address this issue is highly desirable.In this report,we employed a surfactant-thermal method to prepare a novel 1D crystalline thioantimonate[NH(CH_(3))_(2)][Sb_(4)S_(5)(S_(3))].After grinding for 10 min using a mortar,[NH(CH_(3))_(2)][Sb_(4)S_(5)(S_(3))]presented an ultrathin nanosheet morphology(around 20 nm in thickness and several micrometers in lateral dimension).Employed as an anode material for lithium ion batteries,the nano-sized crystalline thioantimonate shows a high reversible specific capacity of 568 mA h g^(−1)over 50 cycles at a current density of 0.1 A g^(−1)and an excellent rate capability of 301 mA h g^(−1)at a current density of 5 A g^(−1).Our research suggests that crystalline thioantimonate could have great potential applications in high performance Li-ion batteries.展开更多
基金financial support from AcRF Tier 1(RG 13/15 and RG133/14)Tier 2(ARC 20/12 and ARC 2/13)from MOE+1 种基金the CREATE program(Nanomaterials for Energy and Water Management)from NRF,Singaporesupport from Open Project of State Key Laboratory of Supramolecular Structure and Materials(Grant number:sklssm2015027),Jilin University,China.
文摘Rechargeable lithium-ion batteries(LIBs)have attracted great attention in various applications.However,high energy density is still a challenge for next-generation lithium ion batteries.Therefore,searching for novel electrode materials to address this issue is highly desirable.In this report,we employed a surfactant-thermal method to prepare a novel 1D crystalline thioantimonate[NH(CH_(3))_(2)][Sb_(4)S_(5)(S_(3))].After grinding for 10 min using a mortar,[NH(CH_(3))_(2)][Sb_(4)S_(5)(S_(3))]presented an ultrathin nanosheet morphology(around 20 nm in thickness and several micrometers in lateral dimension).Employed as an anode material for lithium ion batteries,the nano-sized crystalline thioantimonate shows a high reversible specific capacity of 568 mA h g^(−1)over 50 cycles at a current density of 0.1 A g^(−1)and an excellent rate capability of 301 mA h g^(−1)at a current density of 5 A g^(−1).Our research suggests that crystalline thioantimonate could have great potential applications in high performance Li-ion batteries.
