Method for identifying foil position in power storage device and method for calculating inter-foil distance in power storage device
US12276621B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2022 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Dec 5, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for identifying a foil position in a power storage device includes: analyzing the power storage device by X-ray CT analysis to obtain an X-ray absorbed amount at each position; acquiring an on-path X-ray absorbed amount at each on-path position on a specific imaginary line passing through an electrode sheet; and identifying a foil position of an electrode foil through which the specific imaginary line passes, based on the on-path X-ray absorbed amount. The foil position identifying includes fitting to determine an approximate curve that changes to fit a change in the on-path X-ray absorbed amount in a fitting region and generates a single peak in the fitting region, and estimating a foil position of a single electrode foil from the on-path position corresponding to the single peak of the determined approximate curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.