DataVXAdvanced Functional MaterialsPaper
journal article·2016-06

Elastic Carbon Nanotube Aerogel Meets Tellurium Nanowires: A Binder‐ and Collector‐Free Electrode for Li‐Te Batteries

Jie Xu, Sen Xin, Jian‐Wei Liu, Jin‐Long Wang, Yong Lei, Shu‐Hong Yu

Advanced Functional Materials· Volume 26· Issue 21
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Source abstract

Abstract

Rechargeable Li batteries based on group VIA element cathodes, such as tellurium, are emerging due to their capability to provide equivalent theoretical volumetric capacity density to O and S, as well as an improved activity to react with Li. Herein, bifunctional and elastic carbon nanotube (CNT) aerogel is fabricated to combine with Te nanowires, yielding two types of binder/collector‐free Te cathodes to assemble Li‐Te batteries. The CNTs with high electronic conductivity and hollow porous structure enable stable electric contact and fast transportation of Li+, while trapping Te and Li2Te in its network, triggering fast and stable Li‐Te electrochemistry. Both cathodes are also provided with fine compressibility, helping to buffer their volume changes during lithiation/delithiation and improving electrode integrity. Both cathodes deliver high specific capacity, fine cycling stability, and favorable high‐rate capability, proving their competence in building high‐energy rechargeable Li‐ion batteries.
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Research context

Energy storageNanomaterials

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Division of Nanomaterials & Chemistry Hefei National Laboratory for Physical Sciencesat the Microscale Collaborative Innovation Center of Suzhou NanoScience and Technology Department of Chemistry CAS Center for Excellence in Nanoscience Hefei Science Center of CAS University of Science and Technology of China Hefei 230026 China

School of Chemistry and Chemical Engineering Hefei University of Technology Hefei Anhui 230009 P. R. China

Institute of Physics & IMNMacro Nanos (ZIK) Ilmenau University of Technology Prof.Schmidt‐Str.26 98693 Ilmenau Germany

Funding

National Natural Science Foundation of China · Foundation for Innovative Research Groups of the National Natural Science Foundation of China · National Basic Research Program of China · Users with Excellence and Scientific Research Grant of Hefei Science Center of CAS · Chinese Academy of Sciences

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