Rechargeable lithium battery and manufacturing method thereof
US12394830B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2025 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Mar 7, 2045 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M50/293
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application relates to a rechargeable lithium battery and a manufacturing method thereof, the lithium battery includes a voltage regulation circuit assembly, a plastic frame, a first metal housing, a lithium cell and an insulation sheath, wherein the lithium cell includes a winding cell assembly, a high-voltage positive electrode cap assembly and a second metal housing, an annular rolling groove is formed on an upper portion of the second metal housing, the second metal housing is divided by the annular rolling groove into a lower body portion and an upper contraction portion, the contraction portion of the second metal housing is embedded in the first metal housing, an outer surface of the first metal housing is aligned with an outer surface of the second metal housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.