Activated-phosphorus as new electrode material for Li-ion batteries

By C. Marino, A. Debenedetti, B. Fraisse, F. Favier, L. Monconduit. 2011

162 citations recorded by the source corpus.

Abstract An innovative concept of activation of electrode materials for Li-ion batteries is proposed through the preparation of carbon-phosphorus (P/C) composites. Carbon-encapsulated phosphorus composites can be successfully prepared via a simple route by the vaporization–condensation of red phosphorus onto mesoporous carbon. Surface area measurements and Raman spectroscopy were used for the characterization of the P/C composites, which were then tested as anode materials in Li-ion batteries showing enhanced electrochemical properties. In contrast to what is observed for pure unsupported phosphorus, Li storage in P/C composite occurs through the reversible formation of Li 3 P during the discharge process, as clearly evidenced by in situ XRD, leading to capacities greater than 900 mAh g −1 after 20 cycles.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/cac78d5da7670652465a2b3a3fcd0f1e6e3dd12c