In:
Advanced Materials Technologies, Wiley, Vol. 4, No. 11 ( 2019-11)
Abstract:
A simple, low‐cost, and environmentally friendly water‐based colloidal spray‐painting process is developed to obtain mechanically stable microelectrodes of pure LiCoO 2 on stainless steel disks, which display reversible high‐rate discharge capacity and good cyclability. By using a simple nanostructuring process with commercially available LiCoO 2 , the use of dispersant, conductive, and binder additives during the electrode preparation is completely avoided. The nanostructuring approach is based on: i) planetary ball milling and annealing of LiCoO 2 microparticles and ii) LiCoO 2 surface modification through dissociative H 2 O adsorption during contact with air‐ and water‐based colloid preparation. The coating technique involves: i) water‐based colloid preparation, ii) spray‐coating, and iii) post‐treatment (drying and calcination) processes. The effects of particle size distribution, shape, crystallinity, specific surface area, and LiCoO 2 surface modification on the electrode architecture (roughness, thickness, packing density, and porosity) are studied, together with their impact on the final electrochemical performances of batteries assembled with such a LiCoO 2 electrode.
Type of Medium:
Online Resource
ISSN:
2365-709X
,
2365-709X
DOI:
10.1002/admt.201900499
Language:
English
Publisher:
Wiley
Publication Date:
2019
detail.hit.zdb_id:
2850995-X
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