Battery case, battery, and method for fabricating a battery
US11094982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Jun 14, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery case including a container configured to house an electrode assembly, wherein the container includes a bottom wall and a plurality of side walls, the bottom wall and the side walls integrated to define a space for housing the electrode assembly and an open side opposed to the bottom wall, the container includes a composite including a polymer matrix, an inorganic moisture absorbent dispersed in the base polymer, and a compatibilizer to promote compatibility between the polymer matrix and the inorganic moisture absorbent, the compatibilizer is included in an amount of less than about 3 wt % based on a total weight of the composite, at least one of the bottom wall and the side walls at a thickness of 1 millimeter has a water vapor transmission rate of less than about 0.07 g/m2/day, when measured at 38° C. and a relative humidity of 100%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.