Nanotin alloys supported by multiwall carbon nanotubes as high-capacity and safer anode materials for EV lithium batteries

S. Menkin, Z. Barkay, D. Golodnitsky*, E. Peled

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Much effort has been expended in the search for new lithium-containing anode materials. Alloy anodes based on tin are known for their high specific capacity and safety characteristics. The theoretical specific capacities of alloy anodes are 2-10 times that of graphite. The second merit of alloy anodes is their moderate operation potential versus lithium. For example, Sn anodes have an onset-voltage potential of 0.6 V above that of Li/Li+. This moderate potential averts the danger of lithium deposition which is present in the case of graphite anodes (∼0.05 V vs. Li). This study is directed to the synthesis and characterization of nanotin powders supported by multiwall carbon nanotubes (MWCNT). Modified electroless deposition (ELD) was used for the preparation of high-surface area tin-alloy nanosized anodes. In this work, it was found that the use of nanoparticles of tin deposited on multiwall carbon nanotubes, enables prolonged cycling of a tin-composite anode in a lithium-ion battery.

Original languageEnglish
Pages (from-to)345-351
Number of pages7
JournalJournal of Power Sources
Volume245
DOIs
StatePublished - 2014

Funding

FundersFunder number
Ministry of Energy and Water Resources , Israel29-11-006/2009-7-6

    Keywords

    • Carbon nanotubes
    • Electroless
    • Li-ion battery
    • Tin alloy

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