US10014512B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10014512-B2 |
| Application number | US-201514980157-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 28, 2015 |
| Priority date | Mar 3, 2015 |
| Publication date | Jul 3, 2018 |
| Grant date | Jul 3, 2018 |
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
What the patent document calls the invention.
A short plain-language summary of the technical disclosure.
Who owns or filed the patent and who is credited as inventor.
Filing, priority, publication, and grant dates set the timeline.
The legal scope of protection — read this for what is actually claimed.
Technology tags used to group this patent with similar filings.
Prior art links and similar publications in this corpus.
Official abstract text for this publication.
A method of manufacturing an electric power storage device includes a connection step of connecting an exposed portion, which is provided at one end in a direction of width of an electrode and constructed without a composite material layer being provided in a current collector, and a collector terminal provided on an outer side relative to the exposed portion in the direction of width of the electrode to each other. In the connection step, while a metal layer composed of a second metal higher in melting point than a first metal which forms the collector terminal lies between the exposed portion and the collector terminal, at least a portion of contact of the collector terminal with the metal layer is irradiated with energy.
Opening claim text (preview).
What is claimed is: 1. A method of manufacturing an electric power storage device, comprising: a connection step of connecting an exposed portion, which is provided at one end in a direction of width of an electrode and constructed without a composite material layer being provided in a current collector, and a collector terminal provided on an outer side relative to said exposed portion in the direction of width of said electrode to each other, wherein, in said connection step, while a metal layer composed of a second metal higher in melting point than a first metal which forms said collector terminal lies between said exposed portion and said collector terminal, at least a portion of contact of said collector terminal with said metal layer being irradiated with energy, said metal layer has a thickness not smaller than 0.5 μm and not greater 10 μm, and said metal layer has a thickness not greater than a thickness of said current collector. 2. The method of manufacturing an electric power storage device according to claim 1 , further comprising the steps of: preparing an electrode having said exposed portion and said metal layer provided on a surface of said exposed portion extending in the direction of width of said electrode; and bending said exposed portion provided with said metal layer such that at least a part of said metal layer is located on the outer side relative to said exposed portion in the direction of width of said electrode, before said connection step. 3. The method of manufacturing an electric power storage device according to claim 2 , wherein in prepared said electrode, an end surface of the metal layer located on a side of said composite material layer is distant from an end surface of a composite material layer located on a side of said metal layer. 4. The method of manufacturing an electric power storage device according to claim 1 , wherein said second metal is higher in melting point by at least 100° C. than said first metal. 5. The method of manufacturing an electric power storage device according to claim 4 , wherein said first metal is copper, and said second metal is at least one of nickel, titanium, chromium, and iron. 6. The method of manufacturing an electric power storage device according to claim 1 , wherein said metal layer has a thickness not smaller than 2 μm and not greater than 5 μm. 7. The method of manufacturing an electric power storage device according to claim 1 , wherein said metal layer has a width extending in the direction of width of the electrode of not smaller than 1 mm and not greater than 10 mm. 8. The method of manufacturing an electric power storage device according to claim 6 , wherein said metal layer has a width extending in the direction of width of the electrode of not smaller than 1 mm and not greater than 10 mm. 9. The method of manufacturing an electric power storage device according to claim 1 , wherein said metal layer has a width extending in the direction of width of the electrode of not smaller than 2 mm and not greater than 5 mm. 10. The method of manufacturing an electric power storage device according to claim 6 , wherein said metal layer has a width extending in the direction of width of the electrode of not smaller than 2 mm and not greater than 5 mm. 11. The method of manufacturing an electric power storage device according to claim 1 , wherein said metal layer has a width extending in the direction of width of the electrode of not smaller than 3 mm and not greater than 7 mm. 12. The method of manufacturing an electric power storage device according to claim 7 , wherein said first metal is copper, and said second metal is at least one of nickel, titanium, chromium, and iron. 13. The method of manufacturing an electric power storage device according to claim 10 , wherein said first metal is copper, and said second metal is at least one of nickel, titanium, chromium, and iron. 14. The method of manufacturing an electric power storage device according to claim 1 , wherein before said connection step, said metal layer is formed on a surface of said electrode current collector. 15. The method of manufacturing an electric power storage device according to claim 7 , wherein before said connection step, said metal layer is formed on a surface of said electrode current collector. 16. The method of manufacturing an electric power storage device according to claim 12 , wherein before said connection step, said metal layer is formed on a surface of said electrode current collector. 17. The method of manufacturing an electric power storage device according to claim 13 , wherein before said connection step, said metal layer is formed on a surface of said electrode current collector. 18. An electric power storage device, comprising: an electrode having at one end in a direction of width, an exposed portion constructed without a composite material layer being provided in a current collector; and a collector terminal provided on an outer side relative to said exposed portion in the direction of width of said electrode and connected to said exposed portion, wherein a connection portion connecting said exposed portion and said collector terminal to each other including an alloy of a first metal forming said collector terminal and a second metal higher in melting point than said first metal, said metal layer has a thickness not smaller than 0.5 μm and not greater than 10 μm, and said metal layer has a thickness not greater than a thickness of the current collector. 19. The electric power storage device according to claim 18 , wherein said metal layer has a thickness not smaller than 2 μm and not greater than 5 μm.
Terminals, e.g. extensions of current collectors · CPC title
by welding, soldering or brazing · CPC title
characterised by the material · CPC title
characterised by the shape of the leads or tabs · CPC title
on the same side of the cell · CPC title
Related publications grouped by family.
Answers are generated from the same data shown on this page.