Elastic bladder and battery cell assemblies including same
US10276846B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Oct 2, 2015 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Jan 5, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery pack includes a battery housing and electrochemical cells disposed in the battery housing in a stacked configuration. Elastic bladders are disposed between adjacent cells of a cell stack. The elastic bladders are configured to serve as a compression spring that provide a predetermined compression force to each cell while accommodating cell growth during use. The elastic bladders may include surface features such as strategically shaped and/or located protrusions or restrained regions that are configured to permit compliance and can be tuned to address the requirements of a specific application and permit application of varying stiffness characteristics across a surface of a cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.