Lithium ion battery thermal performance testing method
A lithium-ion battery and testing method technology, applied in calorimeters, measuring devices, measuring heat, etc., can solve the problem of inability to obtain the change of the heating power of the lithium-ion battery with time, the inability to accurately judge the cycle life and safety of the power battery pack , affecting the widespread promotion and application of lithium-ion batteries, etc., to achieve the effect of improving market application prospects, low testing costs, and significant production and practical significance
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[0039] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0040] See figure 1 The present invention provides a method for testing the thermal performance of lithium-ion batteries, which allows battery manufacturers to test the heating power of lithium-ion batteries during discharge, the change in heating power with discharge time, and the total heating value. Accurately grasp the thermal performance data of lithium-ion batteries during discharge, and then make accurate judgments on the cycle life and safety of the power battery pack. The method may specifically include the following steps:
[0041] Step S101: Fully charge the battery, put it in a thermostat after cooling (for example, a thermostat that can be adjusted within the temperature range of 5~35℃, when a certain temperature is selected, it can b...
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