Battery state estimating apparatus and method

Abstract

A battery state estimating apparatus according to an embodiment of the present disclosure includes a measuring unit configured to measure a charging current, and voltage and temperature of a battery in a constant current charging process and a constant voltage charging process of the battery; and a control unit configured to judge whether an abnormal behavior occurs in the battery according to a behavior of at least one of the charging current, the voltage of the battery and the temperature of the battery in at least one of the constant current charging process and the constant voltage charging process, and determine whether lithium precipitation occurs in the battery based on the judged abnormal behavior of the battery.

Dependencies are inferred from the claim text.