Abstract:

This bimonthly review paper highlights 100 recent published papers on lithium batteries. We searched the Web of Science and found 3795 papers online from Dec. 1, 2021 to Jan. 31, 2022. 100 of them were selected to be highlighted. Layered oxide cathode including Ni-rich oxides and lithium-rich materials, are still under extensive investigations for the modification of doping and coating. Large efforts were devoted to design the three-dimensional structure electrode, interface modification, and inhomogeneity plating of lithium metal anode. For alloying mechanism anode materials, beside 3D structure design, many researchers pay attention to the binders. The researches of solid-state electrolytes mainly focused on synthesis, doping, structure design and stability of pre-existing materials and developing new materials, whereas liquid electrolytes mainly focused on the optimal design of solvents and lithium salts for different battery systems and testing different additives. For solid-state batteries, more papers are related to the design of composite cathode and the modification of interfaces. The works for lithium-sulfur batteries are mainly focused on improving the activity of sulfur and suppressing the "shuttle effect". The characterizations include the investigations on Li deposition, interfacial reaction, and structure of cathode materials under high current density. Furthermore, there are theoretical works for the conductivity solid electrolyte with doping, the analyses of interfacial stress, and the interfacial stability of solid state batteries. Prelithiation of electrodes are also studied in few papers.

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