journal article·2017-10-24

Self-Assembled Cu–Sn–S Nanotubes with High (De)Lithiation Performance

Jie Lin, Jin-Myoung Lim, Duck Hyun Youn, Kenta Kawashima, Jun-Hyuk Kim, Yang Liu, Hang Guo, Graeme Henkelman, Adam Heller, Charles Buddie Mullins

ACS Nano· Volume 11· Issue 10
Publisher page

Abstract

Through a gelation–solvothermal method without heteroadditives, Cu–Sn–S composites self-assemble to form nanotubes, sub-nanotubes, and nanoparticles. The nanotubes with a Cu 3–4 SnS 4 core and Cu 2 SnS 3 shell can tolerate long cycles of expansion/contraction upon lithiation/delithiation, retaining a charge capacity of 774 mAh g –1 after 200 cycles with a high initial Coulombic efficiency of 82.5%. The importance of the Cu component for mitigation of the volume expansion and structural evolution upon lithiation is informed by density functional theory calculations. The self-generated template and calculated results can inspire the design of analogous Cu–M–S (M = metal) nanotubes for lithium batteries or other energy storage systems.
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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Semiconductor materials and interfaces

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

Affiliations

Pen-Tung Sah Micro-Nano Science and Technology Institute, Xiamen University, Xiamen, Fujian 361005, China

Department of Chemical Engineering and Department of Chemistry, Center for Electrochemistry, University of Texas at Austin, Austin, Texas 78712-0231, United States

Department of Chemistry and the Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, Texas 78712-0165, United States

Department of Chemical Engineering, Kangwon National University, Chuncheon, Gangwon-do 24341, South Korea

College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China

Texas Materials Institute, University of Texas at Austin, Austin, Texas 78712-1591, United States

Funding

Welch Foundation · China Scholarship Council · Division of Chemical, Bioengineering, Environmental, and Transport Systems

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