Safety monitoring method for internal diaphragm of lithium-ion power battery
A technology of power battery and safety monitoring, applied in the investigation phase/state change and other directions, to achieve good identification effect and break through technical bottlenecks
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.
[0025] Such as figure 1 As shown, it is a flow chart of the online safety detection method for the internal diaphragm of the lithium-ion power battery, and the method includes:
[0026] Step 101 establishes a lithium battery model.
[0027] Step 102 tests the internal apparent resistivity of the lithium battery to obtain the distribution of the internal apparent resistivity of the lithium ion power battery.
[0028] Step 103 obtains the relationship between the internal temperature of the lithium battery and the internal apparent resistivity.
[0029] In the implementation of the above steps 101-103, the ERT sensor is pasted on the surface of the power battery, and by providing excitation to the electrode array on the battery surface, the uneven ...
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