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A data-driven diagnostic approach is developed and proved successful to identify the weld breakage of the connector in battery pack according to the data-upload by the remote monitoring platform. Firstly, two modes of the weld breakage: complete breakage and loose contact, as well as their statistical patterns are illustrated. To further assure the weld breakage fault, the capacity of battery pack...
A new method, probability density function (PDF), is proposed for evaluating the state of health (SOH) of electric storage batteries by analyzing the charge/discharge (C/D) data. First, a comparison of the PDF method, the cyclic voltammogram (CV), incremental capacity analysis (ICA) and differential voltage analysis (DVA) is provided. The mathematical basis of the four methods are in agreement. Moreover,...
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