The electrolyte is another crucial component that significantly affects the performance of batteries, in addition to the electrode. In particular, it plays a vital role in facilitating ion transport in rechargeable batteries. However, the design of electrolytes for fast-charging batteries poses a significant challenge. Unlike solid electrodes, electrolytes are highly disordered, making it difficult to identify the governing physical factors and optimize their properties. Additionally, the vast number of possible combinations of salts and solvents makes it challenging to achieve desirable performance, because even slight variations in composition can lead to noticeable performance degradation. For fast-charging batteries, the need for rapid ionic transport throughout electrolyte to compensate for high current density exacerbates this challenge. This complex transportation problem is strongly correlated with various physical properties of electrolytes, including ionic conductivity, viscosity, diffusivity, and transfer number. Investigating such a high-dimensional parameter space is impractical using traditional trial-and-error experimentation. Furthermore, since optimal battery design is heavily dependent on application scenarios, identifying optimal electrolytes faces more obstacles.