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

Claim 8:
9. An apparatus for determining water content battery, comprising:
a battery measurement unit; and
a computing device in communication with the battery measurement unit;
wherein the computing device comprises a processor and a memory storing program instructions executable by the processor;
wherein the program instructions, when executed by the processor, cause apparatus to:
obtain a capacitance detection value of the battery; and
determine 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 in obtaining the capacitance detection value of the battery, the battery measurement unit is configured to:
after determining that the battery reaches a detection position, connect a detection probe to positive and negative electrodes of the battery;
apply an alternating current with a constant voltage to the battery through the detection probe. and measuring a capacitive reactance value of the battery; and
obtain the capacitance detection value of the battery according to the capacitive reactance value of the battery.