Secondary battery manufacturing method and secondary battery

US12027726B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12027726-B2
Application numberUS-202117374797-A
CountryUS
Kind codeB2
Filing dateJul 13, 2021
Priority dateJul 27, 2020
Publication dateJul 2, 2024
Grant dateJul 2, 2024

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A secondary battery manufacturing method according to an example embodiment of the present disclosure includes an electromagnetic welding step of joining together a first metallic component and a second metallic component included in the secondary battery by electromagnetic welding, and a laser welding step of applying laser light to weld an unjoined part of the first metallic component and the second metallic component, the unjoined part being not joined by the electromagnetic welding step.

First claim

Opening claim text (preview).

The invention claimed is: 1. A secondary battery comprising: a first metallic component; and a second metallic component, wherein a joint surface of the first metallic component and the second metallic component includes an electromagnetically welded part and a laser-welded part, wherein the laser-welded part is a liquid phase diffusion joint part. 2. The secondary battery according to claim 1 , wherein the first metallic component and the second metallic component are made of the same type of metal. 3. The secondary battery according to claim 2 , wherein the first metallic component and the second metallic component are made of aluminum. 4. The secondary battery according to claim 1 , wherein the first metallic component and the second metallic component are made of different types of metal. 5. The secondary battery according to claim 1 , wherein the first metallic component is made of aluminum, and the second metallic component is made of copper. 6. The secondary battery according to claim 1 , wherein the first metallic component is an electrode terminal, and the second metallic component is a bus bar electrically connecting the electrode terminal and another electrode terminal of another secondary battery.

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What does patent US12027726B2 cover?
A secondary battery manufacturing method according to an example embodiment of the present disclosure includes an electromagnetic welding step of joining together a first metallic component and a second metallic component included in the secondary battery by electromagnetic welding, and a laser welding step of applying laser light to weld an unjoined part of the first metallic component and the…
Who is the assignee on this patent?
Primearth Ev Energy Co Ltd
What technology area does this patent fall under?
Primary CPC classification B23K13/01. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jul 02 2024 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).