Safety boundary of power battery based on quantitative lithium deposition

There are not perfect ways to solve the lithium metal deposition of the lithium-ion battery during the fast-charging process currently. Moreover, the safety problems caused by lithium deposition are also unfixed. The safety boundary will be a practical guide for battery usage. In this research, batteries designed with different capacities are charged to achieve different lithium deposition and establish prediction data for battery safety boundaries based on the safety performance of the batteries. The quantitative method of lithium deposition combined with the safe behavior of the battery provides an important reference method for the design of fast charging of the battery. What's more excited is that our approach is expanded to provide experience for the manufacturers in battery safety design that can meet the different fast charging rate requirements. The safety boundaries can achieve the best battery safety performance while saving the materials consumed in manufacture from the root.