Abstract:

This bimonthly review paper highlights 100 recent published papers on lithium batteries. We searched the Web of Science and found 4634 papers online from Jun. 1, 2022 to Jul. 31, 2022. 100 of them were selected to be highlighted. High-nickel ternary layered oxides and Li-rich cathode materials are still under extensive investigations of the influences of doping and interface modifications on their electrochemical performances and surface and bulk evolution of structures under prolong cycling. For alloying mechanism anode materials, such as silicon-based composite materials, many researchers pay attention to the binders. Large efforts were devoted to design the three-dimensional structure electrode, interface modification, and inhomogeneity plating of lithium metal anode. The researches of solid-state electrolytes are mainly focused on synthesis, doping, structure design and stability of pre-existing materials and developing new materials, whereas liquid electrolytes are improved by the optimal design of solvents and lithium salts for different battery systems and adding different additives. For solid-state batteries, the studies are mainly focused on the improvement of ionic and electronic conductivity in cathodes. To suppress the "shuttle effect" of Li-S battery, composite sulfur cathode with high ion/electron conductive matrix and functional binders are studied. Other relevant works are also presented to the design of electrode structure and manufactural SEI. There are a few papers for the characterization techniques are on lithium deposition, volume change of silicon-based anode materials and oxygen release of ternary layered materials. Furthermore, theoretical calculations are done to understand the stability of solid electrolytes and the interface of solid state electrolyte/Li.

Key words: lithium batteries, cathode material, anode material, electrolyte, battery technology