Fabrication and Electrochemical Properties of Hemisphere Structured 3D Li(Li0.2Mn0.54Co0.13Ni0.13)O2 Cathode Thin Film for All-Solid-State Lithium Battery
The Li[Li0.2Mn0.54Co0.13Ni0.13]O2 cathode thin films were deposited on planar, hemisphere, linked hemisphere, and isolated hemisphere structured Pt current collector thin films to investigate the effect of 3-dimensional (3-D) structure
for the electrochemical properties of active cathode thin films. The films of linked hemisphere structure shows the highest initial discharge capacity of 140 μA h/cm2-μm which is better than those of planar (62 μA h/cm2-μm), hemisphere
(94.6 μA h/cm2-μm), and isolated hemisphere (135 μA h/cm2-μm) films due to increase of surface area for cathode thin films. Linked hemisphere shows the biggest capacity and the best retention rate because 6 nanobridges of each hemisphere
bring strong connection.
Document Type: Research Article
Publication date: 01 May 2013
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