Battery life assessment and capacity restoration
US11658354B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2018 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Jul 13, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Described herein are embodiments of methods and apparatus for determining the SoC and SoH a lithium ion battery and for restoring capacity to a lithium ion battery. Some embodiments provide a method and apparatus including an ultrasound transducer designed to measure characteristics of a lithium ion battery in order to determine the SoC and SoH of the lithium ion battery, and to disrupt the SSEI layer inside the lithium ion battery. Several other methods for determination of SoC and SoH and disruption of the SSEI layer are also described. Use of such methods and apparatus may be advantageous in assessing a state of the lithium ion battery, as well as rejuvenating a lithium ion battery and increasing its life span.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.