Battery electrodes are the two electrodes that act as positive and negative electrodes in a lithium-ion battery, storing and releasing charge. The fabrication process of electrodes directly determines the formation of its microstructure and further affects the overall performance of battery.
Some of these novel electrode manufacturing techniques prioritize solvent minimization, while others emphasize boosting energy and power density by thickening the electrode and, subsequently, creating an organized pore structure to permit faster ion diffusion.
The electrode manufacturing procedure is as follows: battery constituents, which include (but are not necessarily limited to) the active material, conductive additive, and binder, are homogenized in a solvent. These components contribute to the capacity and energy, electronic conductivity, and mechanical integrity of the electrode.
The influences of different technologies on electrode microstructure of lithium-ion batteries should be established. According to the existing research results, mixing, coating, drying, calendering and other processes will affect the electrode microstructure, and further influence the electrochemical performance of lithium ion batteries.
With operational safety as a strict criterion in battery cell quality, structured electrodes show a high potential for implementation in the industry. This advantageous electrode treatment was already patented in 2012, giving different proposals for creating the structures.
The design of perfect protecting layers on Li metal anode is also a crucial subject for Li metal batteries (Liu et al., 2019a; Liu et al., 2019b; Yan, Zhang, Huang, Liu, & Zhang, 2019). Revealing the particle issues in these processes plays vital roles in improving electrode performance of next-generation batteries.