Stacked battery
US-2024304824-A1 · Sep 12, 2024 · US
Sealed type cell manufacturing method
US9099754B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9099754-B2 |
| Application number | US-86548008-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 26, 2008 |
| Priority date | Jan 31, 2008 |
| Publication date | Aug 4, 2015 |
| Grant date | Aug 4, 2015 |
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Abstract
Official abstract text for this publication.
A cell assembly ( 20 ) is formed by arranging an electrode body and electrolyte in an external case ( 12 ) having a through hole ( 41 ). A laser is applied to an annular portion (formed by Al or Al-based alloy) surrounding an opening end ( 41 A) of the through hole ( 41 ) toward outside the case so as to form a welded base ( 45 ). A sealing film ( 54 ) is welded to the surface of the welded base directly or via a base film ( 52 ) welded in advance, so as to temporarily seal the through hole ( 41 ). The cell assembly ( 20 ) in the temporarily sealed state is subjected to initial charge and then a hole is opened through the film ( 54 ) so as to form a gas discharge passage for communication between inside and outside of the case ( 12 ), thereby discharging an excessive gas from the case ( 12 ) outside.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sealed type cell manufacturing method for manufacturing a sealed type cell in which an electrode body provided with a positive electrode and a negative electrode, and an electrolyte are contained in an external case, the method comprising: a step of configuring a cell assembly by housing said electrode body and said electrolyte in an external case having a through-hole; a step of temporarily sealing said through-hole by welding a sealing film dir…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9099754B2 cover?
- A cell assembly ( 20 ) is formed by arranging an electrode body and electrolyte in an external case ( 12 ) having a through hole ( 41 ). A laser is applied to an annular portion (formed by Al or Al-based alloy) surrounding an opening end ( 41 A) of the through hole ( 41 ) toward outside the case so as to form a welded base ( 45 ). A sealing film ( 54 ) is welded to the surface of the welded bas…
- Who is the assignee on this patent?
- Komatsuki Masato, Nakazawa Takashi, Yugahara Kaoru, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0413. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 04 2015 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).