Weld validation system and method for a battery module
AssigneeLG Chem, Ltd.
InventorsJanina Stancu, Kenneth J. Oswandel
Life of this patent
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Abstract
A weld validation system and method for a battery module are provided. The battery module has first and second battery cells and an interconnect member welded to first and second tabs of the first and second battery cells, respectively. The system includes a gripping device having first and second gripping fingers contacting the interconnect member. The system further includes a temperature sensor that generates a first signal indicative of a temperature of the interconnect member when a battery cycling device is discharging the battery module. The system further includes a computer that determines a first temperature value indicative of the temperature of the interconnect member based on the first signal.
Claims17
A weld validation system for a battery module, the battery module having first and second battery cells and an interconnect member welded to first and second tabs of the first and second battery cells, respectively, comprising:
- a gripping device having first and second gripping fingers configured to contact the interconnect member;
- a battery cycling device being electrically coupled to the battery module, the battery cycling device configured to charge and discharge the battery module;
- a temperature sensor disposed on one of the first and second gripping fingers, the temperature sensor configured to generate a first signal indicative of a temperature of the interconnect member when the battery cycling device is discharging the battery module;
- and
- a computer configured to determine a first temperature value indicative of the temperature of the interconnect member based on the first signal.
A method for validating a weld joint of a battery module, the battery module having first and second battery cells and an interconnect member welded to first and second tabs of the first and second battery cells, respectively, comprising:
- contacting the interconnect member previously welded to the first and second tabs of the first and second battery cells utilizing first and second gripping fingers of a gripping device;
- discharging the battery module utilizing a battery cycling device electrically coupled to the battery module;
- generating a first signal indicative of a temperature of the interconnect member utilizing a temperature sensor when the battery cycling device is discharging the battery module;
- and
- determining a first temperature value indicative of the temperature of the interconnect member based on the first signal utilizing a computer.
Dependencies are inferred from the claim text.