Patent ID: 11946893
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A non-transitory computer-readable storage medium storing computer instructions which, when executed by a computer processor, cause a device having the processor and a battery measurement unit to execute a method for determining water content in a battery, wherein the method comprises:
obtaining a capacitance detection value of the battery; and
determining a first water content value of the battery according to the capacitance detection value and a capacitance-water content relationship model;
wherein the capacitance-water content relationship model is constructed according to corresponding relationships between sample batteries with different water content values and their respective sample capacitance values; and
wherein obtaining the capacitance detection value of the battery comprises;
after determining that the battery reaches a detection position, connecting a detection probe to positive and negative electrodes of the battery;
applying an alternating current with a constant voltage to the battery through the detection probe, and measuring a capacitive reactance value of the battery; and
obtaining the capacitance detection value of the batten according to the capacitive reactance value of the battery.