A Simple One‐Pot Strategy for Synthesizing Ultrafine SnS2 Nanoparticle/Graphene Composites as Anodes for Lithium/Sodium‐Ion Batteries,ChemSusChem

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A Simple One‐Pot Strategy for Synthesizing Ultrafine SnS2 Nanoparticle/Graphene Composites as Anodes for Lithium/Sodium‐Ion Batteries
ChemSusChem ( IF 7.5 ) Pub Date : 2018-04-17 , DOI: 10.1002/cssc.201800073
Xin Li ₁ , Xiaohong Sun _{1,

2} , Zhiwen Gao ₁ , Xudong Hu _{1,

2} , Rui Ling ₁ , Shu Cai ₁ , Chunming Zheng ₃ , Wenbin Hu ₁

Affiliation

SnS₂/graphene composites have attracted extensive attention in energy storage owing to their excellent electrochemical performance. However, most of the previous methods to synthesize SnS₂/graphene composites require long times, high temperatures, or high pressures, which are obstacles for practical low‐cost production. A simple one‐pot strategy to prepare SnS₂/graphene composites has been developed, which is not time‐consuming (1 h) and requires moderate temperature (75 °C) in atmosphere. Through this method, ultrafine SnS₂ nanoparticles anchored on graphene nanosheets are prepared and exhibit excellent electrochemical performance for both lithium and sodium storage. Specifically, as anodes for lithium‐ion batteries, the SnS₂/graphene electrode delivers a high capacity of 1480 mAh g⁻¹ after 50 cycles at 0.2 A g⁻¹. Even at 10 A g⁻¹, the SnS₂/graphene electrode can achieve a capacity of 666 mAh g⁻¹. A constructed full lithium‐ion cell exhibits a capacity of 957 mAh g⁻¹ after 50 cycles at 1 A g⁻¹. This simple one‐pot strategy may pave the way for large‐scale production and practical application of SnS₂/graphene composites in energy storage.

中文翻译：

一种简单的一锅策略，用于合成超细SnS2纳米颗粒/石墨烯复合材料作为锂/钠离子电池的阳极

SnS ₂ /石墨烯复合材料由于其优异的电化学性能而在储能方面引起了广泛的关注。但是，大多数以前的合成SnS ₂ /石墨烯复合材料的方法都需要长时间，高温或高压，这是实际低成本生产的障碍。已经开发了一种简单的一锅法制备SnS ₂ /石墨烯复合材料的方法，该方法既省时（1 h），又需要大气中温度适中（75°C）。通过这种方法，制备了锚固在石墨烯纳米片上的超细SnS ₂纳米粒子，并显示出优异的电化学性能，可用于锂和钠的存储。特别是，作为锂离子电池的负极，SnS₂ /石墨烯电极在0.2 A g ^-1下经过50次循环后可提供1480 mAh g ^-1的高容量。即使在10 A g ^-1下，SnS ₂ /石墨烯电极也可以达到666 mAh g ^-1的容量。甲构造全锂离子电池单元表现出的957毫安g的容量^-1 1 A G 50次循环后^-1。这种简单的单锅策略可能为SnS ₂ /石墨烯复合材料在能量存储中的大规模生产和实际应用铺平道路。

更新日期：2018-04-17

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