Device and method for detecting internal defect of battery cell by using tdr
US12429525B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2022 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Aug 30, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus is provided for detecting an internal defect of a battery cell. The apparatus may include a time domain reflectometry (TDR) module configured to apply an electrical pulse to the battery cell and compare a reference waveform with a measurement waveform generated by detecting a reflected wave of the electrical pulse to determine whether a defect has occurred, and a signal line configured to electrically connect the TDR module to an electrode lead of the battery cell. The electrical pulse may be applied in a longitudinal direction of the battery cell. A method of detecting an internal defect of a battery cell is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.