Battery anomaly detection method and device and nonvolatile storage medium

The invention discloses a battery anomaly detection method and device and a nonvolatile storage medium. The method comprises the steps that target battery data of a target battery at the current sampling moment are acquired, and the target battery data at least comprise a target voltage value, a target resistance value, a target temperature value and a target charge state value; determining a first scalar at the current sampling moment based on the target voltage value and the target temperature value; determining a second scalar at the current sampling moment based on the target charge state value and the target resistance value; determining a target scalar at the current sampling moment based on the first scalar at the current sampling moment and the second scalar at the current sampling moment; and determining an abnormal detection result of the target battery based on the target scalar at the current sampling moment. According to the invention, the technical problem of low battery anomaly detection accura