Systems and methods of detecting Li dendrites
US12368190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Oct 11, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods that utilize a separator coated by particles for Li dendrite detection in an ordinary two-electrode battery system. The particles can be red phosphorus (RP) particles and/or other particles that are poor electronic conductors, are able to react with Li, and will form an insoluble product with Li, such as silicon, germanium, arsenic, metal oxides, metal halides, metal chalcogenides, chalcogenides, and LiMxEyOz (M=metal, E=nonmetal, O=oxygen, x≥0, y≥0, z≥0). These other particles can be used by themselves or in combination with one another. No additional electrode is needed, and the presence of Li dendrites can be detected simply based on the voltage profile during the charging step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.