公开(公告)号：US20240283033A1

公开(公告)日：2024-08-22

申请号：US18112552

申请日：2023-02-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ryan Curtis SEKOL ,  James R. SALVADOR ,  Michelle H. WIEBENGA ,  William Reginald COLLIN ,  Christopher BRADY ,  Robert H. DIETZE, JR. ,  Jennifer Therese BRACEY ,  Houssen YANG

IPC: H01M10/42 ,  G01M3/04 ,  G01N21/25 ,  G01N21/71 ,  H01M10/44 ,  H01M10/48

CPC classification number: H01M10/4228 ,  G01M3/04 ,  G01N21/25 ,  G01N21/71 ,  H01M10/44 ,  H01M10/48

Abstract: A method for testing a battery component for leakage includes generating a sample from a battery component storing electrolyte using a Fourier Transform infrared (FT-IR) spectrometer, comparing absorbance levels of the sample at N predetermined frequencies to N predetermined thresholds, respectively, where N is an integer greater than one; and selectively detecting at least one of an electrolyte leak and generating an electrolyte concentration estimate in response to the comparison. The battery component is selected from a group consisting of a battery cell, a battery module, and a battery pack.