Superior Li storage anode based on novel Fe-Sn-P alloy prepared by electroplating

Abstract

Novel ternary Fe-Sn-P alloys prepared by simple single-step electrodeposition are investigated as promising anodes for Li-ion batteries. The Fe 51 Sn 38 P 11 electrode, in particular, shows outstanding Li-storage properties, with initial specific discharge/charge capacities of 857.8 and 655 mA h g ¿1 , respectively. The reversible capacity remains stable at 427 mA h g ¿1 , even after 90 cycles, corresponding to a coulombic efficiency of 96% and a capacity retention of 65%. The cauliflower-like morphology of the above anode is well preserved after 90 cycles, suggesting that this alloy could significantly mitigate the electrode volume expansion by exerting a positive multiphase synergistic effect. The superior electrochemical performance of the ternary Fe-Sn-P alloys confirmed its potential as an alternative Li-ion storage anode; the large-scale suitability of the developed electroplating method provides an additional advantage.

Ni12P5 Nanoparticles Hinged by Carbon Nanotubes as 3D Mesoporous Anodes for Lithium‐Ion Batteries

“…Electrode material is one of the key factors affecting comprehensive performance for LIBs. Because of the lower theoretical specific capacity (372 mAh g −1 ) and safety problem, the current commercial graphite anodes could not meet the requirements of the world‘s future energy needs . Therefore, looking for a new alternative anode material is imminent.…”

Electrodeposition of Nanocrystalline Fe-P Coatings: Influence of Bath Temperature and Glycine Concentration on Structure, Mechanical and Corrosion Behavior

“…Alloying transition metals with metalloids such as P, B, C, and Si can render amorphous phases. Fe-P coatings have recently raised scientific interest in respect to various advanced applications as temporary biodegradable bone replacement material [7] and alternative Li-ion storage anode [8,9]. Fe-P alloys may also serve as a substitute for widely banned hard chromium.…”

The role of glycine in the iron-phosphorous alloy electrodeposition

“…The Fe-P coatings become interesting in metallic foam and battery anode deposition [8e10], in magnetic [11e14] and corrosion inhibition applications [15e17]. Moreover, high strength, hardness, relatively high electrical resistivity, and advantageous mechanical properties may be achieved [10].…”