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.
The aging of lithium batteries is a long-term gradual process, and the health of the battery is affected by various factors such as temperature, current rate, and cut-off voltage. At present, some achievements have been made in the research and modeling analysis of battery health status. Related research includes battery degradation mechanism and aging factor analysis, battery health management, battery status monitoring and estimation, battery life prediction, etc.
Many customers buy 18650 lithium ion battery cells and assemble by themselves for ebike,electric device.This article describes the details and instruction to proceed the 18650 lithium ion cells assemble to battery pack.
