Gree Associates publishes patents related to "Lithium Battery"

Recently, Zhuhai Gree Electric Appliance Co., Ltd. announced the patent for "lithium battery SOC estimation method, lithium battery module and electrical equipment", according to Tianyan App. The application date is November 25, 2020, and the public number is CN112462267A.

The patent summary shows that the invention discloses a lithium battery SOC estimation method, a lithium battery module and an electrical equipment. The lithium battery SOC estimation method comprises the following steps: preset the unsolved function relation of the corresponding relationship between the lithium battery SOC and at least one lithium battery working parameter, and count the quantity N of the unknown quantity in the unsolved function relation. Collect M group sampling data of lithium battery in working state, M ≥ N, and each group of sampling data contains lithium battery SOC and all the working parameters of lithium battery in the function relationship to be solved; according to the M group sampling data, calculate all the unknown quantities of the function relation to be solved; replace the unknown quantity into the function relation to be solved to get the SOC estimation model. The invention calculates the unknown quantity in the function relation to be solved by using multiple groups of sampling data, and forms a final SOC estimation model to realize efficient dynamic estimation of the SOC value of lithium battery.