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In developing electrochemical cells, one must keep in mind that the real goal is to package and control all the materials and components (cathode and anode active materials, electrolytes, separators, current collectors etc.) in a limited volume to enable maximum energy storage without creating any safety problems. In this manner, Li-Ion batteries (LIB) were first introduced to practical use in 1991...
α-Fe2O3 and Fe3O4 hollow nanospheres of size 30 ± 2 nm were synthesized by using polymeric micelles as a soft template for the first time. The hollow nanospheres were thoroughly characterized by transmission electron microscope, superconducting quantum interference device, X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetry and differential thermal analysis, cyclic voltammogram,...
Well-crystallized LiMn2O4 has been synthesized at different calcination temperatures using the melt-impregnation method. The lattice constant of LiMn2O4 increased with increasing calcination temperatures. Li/LiMn2O4cells calcined at lower temperatures (700–800°C) showed excellent cycling performances at room temperature. However, those cells calcined at higher temperature (850–900°C) exhibited abrupt...
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