Synthesis of 3D-hierarchical NiO-G composites with enhanced electrochemical performances as anode for lithium secondary batteries

Modeling Nickel Oxide Particle Stress Behavior Induced by Lithiation Using a FEM Linear Elastic Approach

“…[3][4][5][6][7][8] However, most of the raw NiO materials reported so far suffer from poor capacity retention performance and low stability. [9][10][11][12][13][14][15][16] It is commonly believed that this behavior can be ascribed not only to the nanostructural particle features (size, shape, morphology) and to the material electronic conductivity, but also to the volumetric expansion and subsequent particle pulverization during the charge/discharge process, principally due to internal stresses induced by the lithation/delithiated process. 10 Consequently, many attempts have been made to improve NiO material nano-structure and conductivity in order to limit the volume expansion and enhance its electrochemical properties and capacity retention.…”