In-situ coupling SnS with nitrogen-doped porous carbon for boosting Li-storage in lithium-ion battery and capacitor

文献类型： 外文期刊

第一作者： Huang, Jiaxi

作者： Huang, Jiaxi;Chen, Jing;Ma, Lin;Liu, Qianlan;Wang, Meijuan;Liao, Lusheng;Xu, Limei;Ma, Lin;Ma, Lin;Liao, Lusheng;Rujiralai, Thitima;Rujiralai, Thitima

作者机构：

关键词： SnS; Li-ion battery; Li-ion capacitor; Carbon nanosheet; Anode

期刊名称：ELECTROCHIMICA ACTA （ 影响因子：6.901； 五年影响因子：6.016 ）

ISSN： 0013-4686

年卷期： 2021 年 365 卷

页码：

收录情况： SCI

摘要： Tin sulfide (SnS) becomes a competitive alternative anode material for lithium ion batteries (LIBs) due to its cost-effects and high theoretical capacity. Herein, a simple freeze-drying and annealing synthetic strategy was exploited to in-situ couple SnS with nitrogen-doped porous carbon nanosheets to fabricate SnS@NPC nanocomposites. In this nanostructure, SnS nanoparticles were well embedded into citric acid-derived nitrogen-doped carbon hierarchical frameworks with enlarged surface areas and abundant porosity. Besides, the reversible Li-ion storage property of this novel nanostructured anode in LIBs was also investigated and compared with the bare SnS counterpart. It was indicated that the SnS@NPC hybrid electrode exhibited a tremendously boosted electrochemical performance. After cycling 200 times at 100 mA g(-1) and 300 times at 10 0 0 mA g(-1), a high specific capacity of 851.5 mA h g(-1) and 607.6 mA h g(-1) was remained respectively. Furthermore, with SnS@NPC as anode and the activated carbon (AC) as cathode, a new-type of lithium ion capacitor (LIC) was also fabricated, which exhibited a specific capacitance of 70.1 F g(-1) at 0.1 A g(-1) and a maximum energy density of 155.5 Wh kg(-1) at 213.6 W kg(-1). The well-engineered nanostructures as well as the aroused synergistic effect between SnS and nitrogen-doped carbon materials are considered to be responsible for the enhanced electrochemical property. (c) 2020 Elsevier Ltd. All rights reserved.

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