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Lithium Batteries: (Adv. Funct. Mater. 10/2009)
Publication year - 2009
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200990038
Subject(s) - materials science , nanoparticle , lithium (medication) , nanotechnology , cathode , coating , electrochemistry , electronics , particle (ecology) , chemical engineering , electrical engineering , physics , electrode , medicine , engineering , quantum mechanics , endocrinology , oceanography , geology
The cover picture is a scanning electron microscopy image of uncoated and 0.5 wt% TiO 2 nanoparticle‐coated LiCoO 2 cathode particles, which are investigated in the research and development of lithium rechargeable batteries that require high power, high capacity, and high safety. TiO 2 nanoparticles with sizes below 100 nm are mixed with LiCoO 2 particles with an average particle size of 20 µm in a rotating jar at 200 rpm. The mixed particles are then fired at 1000°C for 5 h in air. The uncoated and 0.5 wt% coated particles show similar surface morphologies to each other. Despite the use of dry coating, Ti atoms appear to distribute uniformly throughout the particles. The advantage of this method is a simplified and cost‐effective coating procedure, and these electrochemical enhancements can lead to versatile potential applications of the batteries, and provide breakthroughs in the power supply of mobile electronics.