Rolled 3D alkali metal batteries and production process
US10903527B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2017 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Dec 17, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a rolled alkali metal battery wherein the alkali metal is selected from Li, Na, K, or a combination thereof; the battery comprising an anode having an anode active material, a cathode containing a cathode active material, and a separator-electrolyte layer, comprising a first electrolyte alone or a first electrolyte-porous separator assembly, in ionic contact with the anode and the cathode, wherein the cathode contains a wound cathode roll of at least a discrete layer of the cathode active material and an optional binder, at least a discrete layer of a conductive material, and at least a layer of a second electrolyte, identical or different in composition than the first electrolyte, wherein the wound cathode roll has a cathode roll length, a cathode roll width, and a cathode roll thickness and the cathode roll width is substantially perpendicular to the separator-electrolyte layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.