12 Feb '18, 11am

Tin-based nanoplates as promising anode materials for high-capacity Li-ion batteries

Tin-based nanoplates as promising anode materials for high-capacity Li-ion batteries

Graphite, a widely used anode material for LIBs, is not suitable for the requirement of high capacity due to a low theoretical capacity of 372 mA h g−1 . Thus, it is extremely important to develop new anode materials for batteries with high energy density. Silicon is one of the numerous alternative anode materials but, despite a high theoretical capacity, shows serious volume expansion (> 300%) and low electric conductivity which impedes its success in extensive application. Tin, as a result of an alloying reaction with Li, delivers a high theoretical gravimetric capacity of 994 mA h g−1 with the additional merits of low cost and toxicologically and consequently is considered one of the most promising anode materials for lithium ion batteries. However, the principal remaining challenge is to reduce the volume change (260%) during cycle process, as this is believed to cause...

Full article: http://www.greencarcongress.com/2018/02/20180212-tang.html

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