Internal resistance is an important parameter to measure lithium-ion energy storage battery performance and evaluate battery life.
Safety becomes more and more important in energy storage.People are very curious about the internal design of the lithium battery cells
Energy storage technology is a key technology to solve the problems of large-scale access of renewable energy and abandonment of wind and light.
In recent years, the requirements for high-rate charge-discharge performance of power batteries have become higher and higher, and internal resistance is an important factor affecting battery power performance and discharge efficiency. Its initial size is mainly determined by the structural design of the battery, the performance of raw materials and the process technology. .
SOH is commonly used in lithium battery application.it's very important for battery SOH.The state of health of lithium batteries cannot be obtained by direct measurement, but can be obtained through model evaluation. The aging and health of batteries are affected by many factors. At present, the state of health evaluation models of lithium batteries mainly include electrochemical models and equivalent circuit models. and empirical models.