| abstract |
The invention discloses a kind of lithium battery diaphragm test device and method, including：The image collection module that first area source, the first photodetector, the second area source, the second photodetector, the 3rd photodetector and the 4th photodetector form, ventilative test cell, upper heating unit, lower heating unit, Top electrode, the multifunctional testing module of bottom electrode composition, extension test unit.Multifunctional testing module in the present invention can simulate performance of the lithium battery diaphragm under the comprehensive function that high temperature, pressure, voltage puncture；Image collection module obtains the surface image of lithium battery diaphragm using area source with photoelectric detection module；Extension test unit is placed in image collection module, conveniently detect the thickness change of lithium battery diaphragm and be likely to occur holes the defects of.The present invention can realize the all-round property testing of lithium battery diaphragm, reflect performance of the lithium battery diaphragm under various test conditions comprehensively. |