Leaf spring connector for lithium-ion battery cells
US12347889B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2023 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Feb 21, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure describes a non-welded leaf spring battery cell connector which allows for unrestricted outgassing during Lithium-Ion thermal runaway. The connector also has a low-resistance electrical connection surface for applications with rough, uneven contact surfaces such as those on refurbished Lithium-Ion battery cells. The connector is compatible with both protected and unprotected Lithium-Ion cells, as it allows for up to about 5 mm of vertical travel to support varying battery cell lengths caused by battery protection circuits. The leaf spring connector for Lithium-Ion battery cells is made of a conductive sheet of metal, cut and folded into a leaf-spring connector for a removable, non-welded battery cell. The leaf spring connector has one or more areas of material removed, as to not block the flow of caustic gasses during emergency outgassing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.