Method for Manufacturing Secondary Battery and Pouch for Secondary Battery
US-2024379990-A1 · Nov 14, 2024 · US
Cylindrical battery
US10461304B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10461304-B2 |
| Application number | US-201515531648-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 27, 2015 |
| Priority date | Dec 16, 2014 |
| Publication date | Oct 29, 2019 |
| Grant date | Oct 29, 2019 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A cylindrical battery including an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an upper insulating plate disposed on the electrode body; a positive electrode current collector plate disposed on the upper insulating plate; a sealing body; and an outer can. A first positive electrode lead extends between the upper insulating plate and the current collector plate after passing through a through-hole of the upper insulating plate and is bent onto the current collector plate at an outer circumference portion thereof, and a second positive electrode lead extends along the outside of an outer circumference portion of the upper insulating plate and is bent onto the current collector plate at the outer circumference portion thereof. Those positive electrode leads are all connected to the current collector plate.
First claim
Opening claim text (preview).
The invention claimed is: 1. A cylindrical battery comprising: an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an upper insulating plate disposed on the electrode body; a sealing body; a current collector plate disposed between the upper insulating plate and the sealing body; and an outer can, wherein the upper insulating plate has at least one through-hole, the plurality of positive electrode leads includes at least one first positive electrode lead disposed at an inner circumference side of the upper insulating plate and at least one second positive electrode lead disposed at an outer circumference side of the upper insulating plate, the first positive electrode lead extends between the upper insulating plate and the current collector plate after passing through the through-hole of the upper insulating plate and is bent onto the current collector plate at an outer circumference portion thereof, the second positive electrode lead extends along the outside of the outer circumference portion of the upper insulating plate and is bent onto the current collector plate at the outer circumference portion thereof, the first positive electrode lead and the second positive electrode lead are connected to the current collector plate, and the current collector plate is electrically connected to the sealing body. 2. The cylindrical battery according to claim 1 , wherein the outer circumference portion of the upper insulating plate is provided with a notch portion. 3. The cylindrical battery according to claim 1 , further comprising an insulating member having a convex portion along at least a part of an edge portion thereof at a lower portion of the current collector plate. 4. The cylindrical battery according to claim 1 , wherein the plurality of positive electrode leads is laser-welded onto an upper surface of the current collector plate. 5. The cylindrical battery according to claim 1 , wherein the plurality of positive electrode leads is formed from aluminum or an aluminum alloy. 6. The cylindrical battery according to claim 1 , wherein the number of the first positive electrode lead and the number of the second positive electrode lead are each one.
Assignees
Inventors
Classifications
- H01M10/0422Primary
Cells or battery with cylindrical casing · CPC title
Cells with wound or folded electrodes (H01M10/045 takes precedence) · CPC title
- H01M2/263Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US10461304B2 cover?
- A cylindrical battery including an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an upper insulating plate disposed on the electrode body; a positive electrode current collector plate disposed on the upper insulating plate; a sealing body; and an …
- Who is the assignee on this patent?
- Sanyo Electric Co
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0422. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 29 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).