Experimental considerations to study Li-excess disordered rock salt cathode materials

A disordered rock-salt Li-excess cathode material with high capacity and substantial oxygen redox activity: Li1.25Nb0.25Mn0.5O2

a Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA b John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA c Department of Materials Science and Engineering, UC Berkeley, Berkeley, CA 94720, USA d Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720...

Comparative Issues of Cathode Materials for Li-Ion Batteries

After an introduction to lithium insertion compounds and the principles of Li-ion cells, we present a comparative study of the physical and electrochemical properties of positive electrodes used in lithium-ion batteries (LIBs). Electrode materials include three different classes of lattices according to the dimensionality of the Li ion motion in them: olivine, layered transition-metal oxides an...

Electrochemical Characteristics of LiMn2O4 (Li/Ni) Cathode Materials

The present study used the Pechini process with a continuous furnace to synthesize LiMn2O4 powders. After heat treatment, the particle size and lattice constant of the LiMn2O4 powder increased. For heat treatment cathode powders (LMO800), due to both the average valence of Mn cations approaching the theoretical value and the higher crystalinity, the discharge capacities are raised significantly...

Manganese-based cathode materials for Li-ion batteries

Presenting an experimental creep model for rock salt

During the recent decades, the design and construction of underground spaces into rock salt have been particularly regarded for storing petroleum fluids, natural gas, and compressed air energy, and also for disposing nuclear and chemical wastes. The rock salt hosting such spaces will be subjected to various types of monotonic/cyclic, short-term/long-term stresses during the construction and/or ...