METHOD, APPARATUS, STORAGE MEDIUM AND TERMINAL EQUIPMENT FOR ESTIMATING THE IMPEDANCE OF BATTERY

The disclosure embodiments herein provide a method, an apparatus, a storage medium, and a terminal device for estimating the impedance of a battery. The method includes obtaining an impedance matrix of the battery to be detected, wherein the value of an element of the impedance matrix represents the impedance of the battery and its coordinate in the impedance represents its temperature and quantity of electric charge; detecting the impedance of the battery to obtain a first impedance when its temperature is a first temperature and its quantity of electric charge is a first quantity of electric charge; and updating the impedance matrix of the battery according to the distances between the coordinate forming by the first temperature and the first quantity of electric charge and the coordinates of each element in the impedance matrix, and the first impedance. they can reduce the influence of uncertain factors in the measurement process.