Buffer interlayers in membraneless high voltage batteries
US12002951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2021 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Jul 1, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A membraneless battery comprising a cathode comprising a cathode electroactive material; an anode comprising an anode electroactive material; a catholyte in contact with the cathode, wherein the catholyte is not in contact with the anode; an anolyte in contact with the anode, wherein the anolyte is not in contact with the cathode; and one or more buffer interlayers disposed between the anolyte and the catholyte. The catholyte has a pH of less than 4, and the anolyte has a pH of greater than 10. The one or more buffer interlayers regulate a pH in the battery. The anode electroactive material comprises a Zn electroactive material. At least one of the one or more buffer interlayers comprises a weak acid and its conjugate base; and/or at least one of the one or more buffer interlayers comprises a weak base and its conjugate acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.