Electrode for non-aqueous electrolyte solution secondary battery, method of producing electrode and non-aqueous electrolyte solution secondary battery including electrode
US12034143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2022 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | May 5, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode disclosed here includes a surface part of an electrode active material layer has a plurality of first grooves extending in a width direction of the electrode current collector and at least one second groove extending in a longitudinal direction of an electrode current collector. The first groove is formed to be continuous from one end to another end. Here, a region in which the first groove and the second groove are formed is uniformly divided into three layers, which are an upper layer, an intermediate layer and a lower layer, in a thickness direction from the surface of the electrode active material layer to the electrode current collector, and when electrode densities (g/cm3) of the upper layer, the intermediate layer and the lower layer of the groove are d1, d2, and d3, respectively, a relationship of 0.8<(d1/d3)<1.1 is satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.