Method for testing one or a plurality of microbattery devices, and system implementing the testing method
US11474155B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2021 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Jun 27, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for testing at least one energy micro-storage device includes an anode made of metallic lithium formed by electrodeposition of ions on a metal inert to lithium ions, the method comprising a succession of steps during the manufacture of said anode: a step of measuring the initial voltage OCV of the energy micro-storage device; a first charging step, comprising applying a current, measuring the voltage and the internal resistance of the device in order to verify the compliance of the measurements on a very low lithium layer thickness formed at the anode; a second charging stabilization step, comprising applying a current and measuring the voltage of the device in order to verify the compliance of the measurements on a low lithium layer thickness formed at the anode; a retention step with a zero current applied and measuring the voltage in order to confirm the compliance of the energy micro-storage device. A system for implementing the method is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.