Out recent achievements in the development of three-dimensional (3D) thin film microbatteries on silicon and on microchannel plates (MCP) are presented. In such 3D microbatteries, the battery sandwich-like structure, including electrodes, electrolyte and current collectors, is deposited conformally on all available surfaces, thereby utilizing the dead volume of the substrate. Thin-film molybden...

Nitrogen-doped flexible carbon foam was used to fabricate a lithium sulfur battery. The stability and rate performance of the battery were evaluated. The battery with carbon foam calcined at 800 °C displayed superior stability compared with other tested batteries. Battery performance was closely related to the foam structure and component. However, good rate performance was achieved with the fo...

Using a novel electrochemical phase-field model, we question the common belief that LixFePO4 nanoparticles separate into Li-rich and Li-poor phases during battery discharge. For small currents, spinodal decomposition or nucleation leads to moving phase boundaries. Above a critical current density (in the Tafel regime), the spinodal disappears, and particles fill homogeneously, which may explain...

Characterization and Performance of LiFePO4 Thin-Film Cathodes Prepared with Radio-Frequency Magnetron-Sputter Deposition Jian Hong,* Chunsheng Wang,** Nancy J. Dudney,** and Michael J. Lance Department of Chemical Engineering, Tennessee Technological University, Cookeville, Tennessee 38505, USA Department of Chemical and Biochemical Engineering, University of Maryland, College Park, Maryland 2...

High-Ni layered oxide cathodes hold a great promise for fabricating high-energy lithium-ion batteries. However, the oxygen evolution during cycling is crucial factor in structure deterioration, potential change, and capacity decay of cathodes, limiting commercial application high-Ni (Ni > 0.9) oxides Herein, we demonstrate feasible approach to enhance stability framework, through surface immobi...

Nowadays, rechargeable batteries utilizing an S cathode together with Mg anode are under substantial interest and development. The review is made from the point of view materials engaged during development Mg–S batteries, their sulfur cathodes, magnesium anodes, electrolyte systems, current collectors, separators. Simultaneously, various hazards related to use such discussed. It was found that ...