Measurement method for battery welding quality
A technology of welding quality and measurement method, applied in the direction of material resistance, etc., can solve the problem of battery secondary damage accuracy, etc., and achieve the effect of rapid measurement
Inactive Publication Date: 2018-06-19
HARBIN UNIV OF SCI & TECH
6 Cites 15 Cited by
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Relating to the battery measurement field, the invention provides a measurement method for battery welding quality, and aims to solve the problem that the existing battery welding quality test methodcan cause secondary damage or poor accuracy to batteries. The measurement method for battery welding quality provided by the invention includes: inputting current Ibc between a battery electrode and an electrode slice welded on the electrode, detecting the voltage Uad between the battery electrode and the electrode slice to acquire the resistance value Rx of a solder joint between the battery electrode and the electrode slice, judging whether the resistance value of the solder joint is smaller than a standard threshold, if the Rx is smaller than the standard threshold, indicating excellent welding quality, otherwise indicating poor welding quality. The measurement method provided by the invention is suitable for detection of battery welding quality.
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Property | Measurement | Unit |
Resistance | 9.0 | mΩ |
Resistance | 3.5 | mΩ |
Resistance | 5.6 | mΩ |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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