Energy storage device and method of manufacturing energy storage device
US11114729B2 · kind B2 · utility
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20Claims
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Assignee
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Key dates
| Filing date | Sep 27, 2016 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Jun 13, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An energy storage device including: an electrode assembly and a positive electrode current collector, wherein the positive electrode current collector includes an electrode connecting portion connected to the electrode assembly, the electrode connecting portion includes a first portion and a second portion which has a smaller wall thickness than the first portion and is joined to the electrode assembly, and either one of the second portion or the electrode assembly includes a first convex portion projecting toward the other in a joined portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.