Mechanical properties of Li-Sn alloys for Li-ion battery anodes: A first-principles perspective
MetadataShow full item record
© 2016 Author(s). Fracture and pulverization induced by large stress during charging and discharging may lead to the loss of electrical contact and capacity fading in Sn anode materials. A good understanding of mechanical properties is necessary for their optimal design under different lithiation states. On the basis of first-principles calculations, we investigate the stress-strain relationships of Li-Sn alloys under tension. The results show that the ideal tensile strengths of Li-Sn alloys vary as a function of Li concentration, and with the increase of Li+ concentration, the lowest tensile strength decreases from 4.51 GPa (Sn) to 1.27 GPa (Li7Sn2). This implies that lithiation weakens the fracture resistance of Li-Sn alloys.
This open access article is distributed under the Creative Commons license http://creativecommons.org/licenses/by/3.0/
Showing items related by title, author, creator and subject.
Investigation of the production and mechanical properties of porous Beta Titanium alloy compacts prepared by powder metallurgy processes for biomedical applicationsNugroho, Aris Widyo (2013)Titanium and its alloys are known to be widely used for biomedical applications due to their biocompatibility, and excellent corrosion resistance. The introduction of porosity into the metals may reduce the stiffness to ...
Oraby, Elsayed A. (2009)Nowadays, keeping mining and the environment sustainable is a major concern all over the world. Using toxic chemicals such as cyanide and mercury in the gold leaching process is one of the main factors that need to be ...
Pramanik, Alokesh; Littlefair, G. (2015)This paper correlates laboratory based understanding in machining of titanium alloys with theindustry based outputs and find possible solutions to improve machining efficiency oftitanium alloy Ti-6Al-4V. The machining ...