AI Article Synopsis
- Cu-Sn-S composites are created using a gelation-solvothermal method, resulting in the formation of nanotubes, sub-nanotubes, and nanoparticles without any additional additives.
- These nanotubes have a unique structure with a CuSnS core and shell, allowing them to endure extensive cycles of expansion and contraction during charging, maintaining a charge capacity of 774 mAh/g after 200 cycles.
- Density functional theory calculations highlight the crucial role of the Cu component in managing volume expansion and structural changes during lithiation, potentially guiding the development of similar nanotubes for improved lithium batteries or energy storage solutions.
Article 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 CuSnS core and CuSnS shell can tolerate long cycles of expansion/contraction upon lithiation/delithiation, retaining a charge capacity of 774 mAh g 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.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsnano.7b05294 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Self-Assembled Cu-Sn-S Nanotubes with High (De)Lithiation Performance.
ACS Nano
October 2017
Department of Chemical Engineering and Department of Chemistry, Center for Electrochemistry, University of Texas at Austin, Austin, Texas 78712-0231, United States.
Article Synopsis
- Cu-Sn-S composites are created using a gelation-solvothermal method, resulting in the formation of nanotubes, sub-nanotubes, and nanoparticles without any additional additives.
- These nanotubes have a unique structure with a CuSnS core and shell, allowing them to endure extensive cycles of expansion and contraction during charging, maintaining a charge capacity of 774 mAh/g after 200 cycles.
- Density functional theory calculations highlight the crucial role of the Cu component in managing volume expansion and structural changes during lithiation, potentially guiding the development of similar nanotubes for improved lithium batteries or energy storage solutions.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!