Defective porous sheet detection system and detection method
US12379298B2 · kind B2 · utility
0Cited by
0References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2021 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Feb 10, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for detecting a defective porous sheet includes a jig having a through-hole, a heating unit, a temperature sensor, a controlling unit, an air permeability-determining unit and a judging unit. In this manner, it is possible to provide a novel system for detecting a porous sheet, which may be a defective separator after being coated with a porous coating layer, beforehand by using the air permeability and shut-down temperature of the porous sheet itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.