典型文献
Guanine-assisted N-doped ordered mesoporous carbons as efficient capacity decaying suppression materials for lithium-sulfur batteries
文献摘要：
Lithium-sulfur(Li-S)batteries are considered promising next-generation energy storage devices due to their high weight capacities and theoretical energy densities,which are significantly higher than those of conventional lithium-ion batteries.However,the sulfur cathode presents two major drawbacks,specifi-cally low specific capacity caused by the poor electrical conductivities of the active materials and fast ca-pacity decay caused by polysulfide dissolution/shuttling.Herein,a high-rate and high-stability dendritic material consisting of N-doped ordered mesoporous carbons(NOMCs)was successfully synthesized via a facile and low-cost calcination method.The highly ordered mesoporous carbon skeleton limited the growth of the sulfur nanofiller within its channels and provided the necessary electrical contact with the insulating sulfur.Furthermore,N-doped heteroatoms presented strong binding sites for trapping poly-sulfide intermediates,achieving high electrochemical activity,which promoted polysulfide conversion re-actions.As a result,the prepared NOMC-2/S cathode material with 1.2-1.5 mg cm-2 of sulfur displayed excellent electrochemical performance with a high-rate capability of 460.5 mAh g-1 at 1 C,a high specific capacity of 530.9 mAh g-1 after 200 cycles at 0.1 C,and a decay rate of～0.19％per cycle.
文献关键词：
中图分类号：
作者姓名：
Riguang Cheng;Yanxun Guan;Yumei Luo;Chenchen Zhang;Yongpeng Xia;Sheng Wei;Mengmeng Zhao;Qi Lin;Hao Li;Shiyou Zheng;Federico Rosei;Lixian Sun;Fen Xu;Hongge Pan
作者机构：
School of Material Science&Engineering,Guangxi Key Laboratory of Information Materials and Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials,Guilin University of Electronic Technology,Guilin 541004,China;School of Mechanical&Electrical Engineering,Guilin University of Electronic Technology,Guilin 541004,China;School of Material Science&Engineering,University of Shanghai for Science&Technology,Shanghai 200093,China;Centre énergie,Matériaux et Télécommunications,Institut National de la Recherche Scientifique,1650 Boul.Lionel Boulet,Varennes,J3×1S2,Quebec,Canada;School of New Energy Science and Technology,Xi'an Technological University,China
文献出处：
引用格式：
[1]Riguang Cheng;Yanxun Guan;Yumei Luo;Chenchen Zhang;Yongpeng Xia;Sheng Wei;Mengmeng Zhao;Qi Lin;Hao Li;Shiyou Zheng;Federico Rosei;Lixian Sun;Fen Xu;Hongge Pan-.Guanine-assisted N-doped ordered mesoporous carbons as efficient capacity decaying suppression materials for lithium-sulfur batteries)[J].材料科学技术（英文版）,2022(06):155-164
A类：
NOMCs,NOMC
B类：
Guanine,assisted,doped,ordered,mesoporous,carbons,efficient,capacity,decaying,suppression,materials,lithium,sulfur,batteries,Lithium,considered,promising,next,generation,energy,storage,devices,due,their,weight,capacities,theoretical,densities,which,significantly,higher,than,those,conventional,However,cathode,presents,two,major,drawbacks,cally,low,specific,caused,by,poor,electrical,conductivities,active,fast,polysulfide,dissolution,shuttling,Herein,rate,stability,dendritic,consisting,was,successfully,synthesized,via,facile,cost,calcination,method,highly,skeleton,limited,growth,nanofiller,within,its,channels,provided,necessary,contact,insulating,Furthermore,heteroatoms,presented,strong,binding,sites,trapping,intermediates,achieving,electrochemical,activity,promoted,conversion,actions,result,prepared,displayed,excellent,performance,capability,mAh,after,cycles
AB值：
0.583626
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
