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Ni-less cathode with 3D free-standing conductive network for planar Na-NiCl2 batteries
2020-05-01
发表期刊CHEMICAL ENGINEERING JOURNAL (IF:13.3[JCR-2023],13.2[5-Year])
ISSN1385-8947
EISSN1873-3212
卷号387
发表状态已发表
DOI10.1016/j.cej.2020.124059
摘要

The sodium-nickel chloride (Na-NiCl2) batteries technology has been considered as one of the most promising candidates for large-scale electrical energy storage application owing to its abundant electrode material resource, high energy density and safety. However, ultra-excessive Ni in the cathode leads to high material cost and the growth of cathode particles during cycles makes degradation of batteries performances, which hinder the further application of Na-NiCl2 batteries. To address these challenges, we designed a free-standing Ni-less cathode with Ni/NaCl particles uniformly distributed in the three-dimensional (3D) conductive matrix constructed by carbonfiber (CF) and multiwalled carbon nanotubes (MWCNTs). The 3D hierarchical structure synthesized by low-cost vacuum filtration method can offer sufficient void space to accommodate the growth of NaCl particles and effectively enhance the electronic conductivity of the cathode. When the molar ratio of Ni/NaCl in the cathode is reduced to 1.0, a specific capacity of 90 mAh g(-1) for planar Na-NiCl2 batteries can be achieved after 170 cycles at 190 degrees C with a capacity retention of 67%, which is higher than that of traditional tubular Na-NiCl2 batteries.

关键词Sodium-nickel chloride batteries Cathode material Free-standing Vacuum filtration Conductive network
收录类别SCI ; SCIE ; EI
语种英语
资助项目National Natural Science Foundation of China (NSFC)[51672300][51402330][51432010]
WOS研究方向Engineering
WOS类目Engineering, Environmental ; Engineering, Chemical
WOS记录号WOS:000527331600052
出版者ELSEVIER SCIENCE SA
EI入藏号20200408070644
EI主题词Cathodes ; Molar ratio ; Multiwalled carbon nanotubes (MWCN) ; Secondary batteries ; Sodium chloride
EI分类号Secondary Batteries:702.1.2 ; Nanotechnology:761
WOS关键词NICKEL CHLORIDE ; SODIUM ; TEMPERATURE ; PERFORMANCE ; ELECTROLYTES ; DEGRADATION ; CHALLENGES ; PARTICLES ; STORAGE ; SULFUR
原始文献类型Article
引用统计
被引频次:21[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/120834
专题物质科学与技术学院_博士生
通讯作者Wen, Zhaoyin
作者单位
1.Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China
2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
第一作者单位物质科学与技术学院
推荐引用方式
GB/T 7714
Li, Yanpei,Wu, Xiangwei,Wang, Jingyi,et al. Ni-less cathode with 3D free-standing conductive network for planar Na-NiCl2 batteries[J]. CHEMICAL ENGINEERING JOURNAL,2020,387.
APA Li, Yanpei,Wu, Xiangwei,Wang, Jingyi,Gao, Xingpeng,Hu, Yingying,&Wen, Zhaoyin.(2020).Ni-less cathode with 3D free-standing conductive network for planar Na-NiCl2 batteries.CHEMICAL ENGINEERING JOURNAL,387.
MLA Li, Yanpei,et al."Ni-less cathode with 3D free-standing conductive network for planar Na-NiCl2 batteries".CHEMICAL ENGINEERING JOURNAL 387(2020).
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