Ultrafine Sn and SnSb0.14 Powders for Lithium Storage Matrices in Lithium‐Ion Batteries

Abstract

Insertion of lithium into, or extraction from, metallic host materials can produce volume changes, which lead to rapid mechanical disintegration and deterioration of Li-alloy electrode performance. The cycling properties of Sn-based composite electrodes can be significantly improved by optimizing the morphology and microstructure of lithium storage matrices. Decreasing the particle size of the metallic host powders to a submicron scale and using an intermetallic multiphase structure are effective ways for maintaining electrode mechanical and cycle stability. The fine host powders also enhance the kinetics of the electrochemical Li-alloying process. Besides the granular structure of host matrices, the cycling potential range and the identity of the organic electrolytes also have major influences on the electrode performance.

Preparation and electrochemical performances of nanoscale FeSn2 as anode material for lithium ion batteries

“…In recent years, researchers also use nanoscale materials to improve the electrochemical properties of the electrodes. As reported by Yang et al [18], the cycling stability of intermetallic anodes can be significantly improved by decreasing the particle size due to the reduction of volume changes and enhancement of Li-alloying kinetics. Previous researches have found that good cycling stability could be achieved in some nanoscale Sn-based intermetallic compounds [9,19].…”

Low temperature solvothermal synthesis of nanosized NiSb as a Li-ion battery anode material

“…Yang et al [13] reported that some Sb-based materials with reduced particle size showed good cycling stability. They attributed the improvement of cycling * Corresponding author.…”

Electrospun SnSb Crystalline Nanoparticles inside Porous Carbon Fibers as a High Stability and Rate Capability Anode for Rechargeable Batteries

“…The restoration of SnSb is beneficial in retarding the rate of agglomeration of SnSb particles into larger grains, which has been identified as one of the key reasons for poor cycle stability of Sn-based materials. [33,34] The reproducibility of the peaks in subsequent cycles strongly indicates excellent electrochemical reversibility of the SnSb-C composite.…”