Packaging material for electrochemical cells
US10854396B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 21, 2017 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Jul 1, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A packaging material for electrochemical cells, which has insulating properties sufficient for preventing a short circuit, while exhibiting excellent electrolyte solution resistance and water vapor barrier properties. A packaging material for electrochemical cells is obtained by sequentially laminating a metal layer, an adhesive resin layer and a thermally adhesive resin layer in this order, wherein: a base coating layer is provided between the metal layer and the adhesive resin layer; and the base coating layer contains at least a zirconium oxide (A) having an average particle diameter within the range of from 1 nm to 500 nm (inclusive), one or more phosphorus-containing compounds (B) selected from the group of phosphorus compounds having 4 or more phosphonic groups in each molecule, and an acid-modified polyolefin resin (C).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.