Lithium-ion capacitor
US11302487B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Jun 12, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium-ion capacitor (LIC) is provided which includes positive electrodes, negative electrodes pre-loaded on surface with lithium sources including lithium strips and ultra-thin lithium films having holes, separators and organic solvent electrolyte with lithium salt for high performance including high energy density, high power density, long cycle life, long DC life and wide temperature ranges. A method for making an LIC is also provided, where cell components important to optimize the electrochemical performance of LIC's are configured, said components include PE active material and binders, NE active material and binders, thickness/mass ratio of positive electrode (PE) to negative electrode (NE) active layers, PE and NE's size designs and layer numbers, types of material for Separators and NE pre-lithiation methods, NE pre-lithiation includes loading various lithium (Li) sources including lithium strips and ultra-thin lithium films having holes onto the surface of NE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.