JP2009295595A5 - - Google Patents
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- JP2009295595A5 JP2009295595A5 JP2009215290A JP2009215290A JP2009295595A5 JP 2009295595 A5 JP2009295595 A5 JP 2009295595A5 JP 2009215290 A JP2009215290 A JP 2009215290A JP 2009215290 A JP2009215290 A JP 2009215290A JP 2009295595 A5 JP2009295595 A5 JP 2009295595A5
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- Prior art keywords
- sealing film
- sealed battery
- hole
- case
- sealing
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Claims (8)
前記密閉型電池製造方法は：
貫通孔を有する外装ケースに前記電極体および前記電解質を収容して電池組立体を構築する工程；
前記ケースの外表面であって前記貫通孔の前記ケース外部への開口端を囲む環状部分にレーザ照射処理を施して形成された溶着基面に直接または該溶着基面に予め溶着されたベースフィルムを介して封止フィルムを溶着することにより、前記貫通孔を仮封止する工程、ここで、前記ケースのうち少なくとも前記環状部分はアルミニウムまたはアルミニウム合金製であり、前記レーザ照射処理は前記環状部分にレーザを照射して表面を粗化する処理である；
前記貫通孔を仮封止した状態で前記電池組立体の初期充電を行う工程；および、
前記初期充電工程の後、前記フィルムに孔を開けて前記ケースの内外を連通するガス抜き通路を形成することにより該ケース内の余剰ガスを外部に排出するガス抜き工程；
を包含する方法であり、
ここで、前記封止フィルムは、組成の異なる二以上の樹脂層が積層された積層フィルムからなることを特徴とする、密閉型電池を製造する方法に用いるための封止フィルム。 A sealing film for use in a method of manufacturing a sealed battery in a form in which an electrode body including a positive electrode and a negative electrode and an electrolyte are housed in an outer case ,
The sealed battery manufacturing method is:
A step of housing the electrode body and the electrolyte in an outer case having a through hole to construct a battery assembly;
A base film which is welded directly or in advance to a welding base surface formed by subjecting an annular portion surrounding the opening end of the through hole to the outside of the case, which is an outer surface of the case, to the welding base surface. A step of temporarily sealing the through-hole by welding a sealing film via the step, wherein at least the annular portion of the case is made of aluminum or an aluminum alloy, and the laser irradiation treatment is performed on the annular portion Treatment to roughen the surface by irradiating with laser;
Performing initial charging of the battery assembly in a state where the through hole is temporarily sealed; and
A degassing step of discharging excess gas in the case to the outside by forming a degassing passage that opens a hole in the film and communicates the inside and outside of the case after the initial charging step;
A method comprising,
Here, the sealing film comprises a laminated film in which two or more resin layers having different compositions are laminated . The sealing film for use in a method for producing a sealed battery.
前記密閉型電池製造方法は：
貫通孔を有する外装ケースの外表面であって該貫通孔の前記ケース外部への開口端を囲む環状部分にレーザ照射処理を施して溶着基面を形成する工程、ここで、前記ケースのうち少なくとも前記環状部分はアルミニウムまたはアルミニウム合金製であり、前記レーザ照射処理は前記環状部分にレーザを照射して表面を粗化する処理である；
前記外装ケースに前記電極体および前記電解質を収容して電池組立体を構築する工程；
前記溶着基面に直接または該溶着基面に予め溶着されたベースフィルムを介して封止フィルムを溶着することにより、前記貫通孔を仮封止する工程；
前記貫通孔を仮封止した状態で前記電池組立体の初期充電を行う工程；および、
前記初期充電工程の後、前記フィルムに孔を開けて前記ケースの内外を連通するガス抜き通路を形成することにより該ケース内の余剰ガスを外部に排出するガス抜き工程；
を包含する方法であり、
ここで、前記封止フィルムは、組成の異なる二以上の樹脂層が積層された積層フィルムからなることを特徴とする、密閉型電池を製造する方法に用いるための封止フィルム。 A sealing film for use in a method of manufacturing a sealed battery in a form in which an electrode body including a positive electrode and a negative electrode and an electrolyte are housed in an outer case ,
The sealed battery manufacturing method is:
Forming a welded base surface by applying a laser irradiation process to an annular portion surrounding the opening end of the through hole to the outside of the case, the outer surface of the outer case having a through hole, wherein at least one of the cases The annular part is made of aluminum or an aluminum alloy, and the laser irradiation treatment is a process of irradiating the annular part with a laser to roughen the surface;
Housing the electrode body and the electrolyte in the outer case to construct a battery assembly;
Temporarily sealing the through-hole by welding a sealing film directly to the welding base surface or via a base film previously welded to the welding base surface;
Performing initial charging of the battery assembly in a state where the through hole is temporarily sealed; and
A degassing step of discharging excess gas in the case to the outside by forming a degassing passage that opens a hole in the film and communicates the inside and outside of the case after the initial charging step;
A method comprising,
Here, the sealing film comprises a laminated film in which two or more resin layers having different compositions are laminated . The sealing film for use in a method for producing a sealed battery.
該封止フィルムは、下面および上面にポリオレフィン層が配置され、それらポリオレフィン層の間にポリエチレンナフタレート層が配置された積層フィルムからなることを特徴とする、密閉型電池を製造する方法に用いるための封止フィルム。The sealing film comprises a laminated film in which a polyolefin layer is disposed on a lower surface and an upper surface, and a polyethylene naphthalate layer is disposed between the polyolefin layers, for use in a method for producing a sealed battery. Sealing film.
該封止フィルムの下面を構成する樹脂層および上面を構成する樹脂層のうち少なくとも一方にはレーザ吸収材が添加されており、且つ前記封止フィルム全体の厚み方向に対するレーザ透過率が７０〜９５％であることを特徴とする、密閉型電池を製造する方法に用いるための封止フィルム。A laser absorber is added to at least one of the resin layer constituting the lower surface of the sealing film and the resin layer constituting the upper surface, and the laser transmittance in the thickness direction of the whole sealing film is 70 to 95. %, A sealing film for use in a method for producing a sealed battery.
前記密閉型電池製造方法において、前記溶着基面には、前記レーザ照射処理により、微細な枝状構造を備えた酸化アルミニウム層が形成されていることを特徴とする、密閉型電池を製造する方法に用いるための封止フィルム。In the sealed battery manufacturing method, a method for manufacturing a sealed battery, wherein an aluminum oxide layer having a fine branch structure is formed on the welding base surface by the laser irradiation treatment. Sealing film for use in.
前記酸化アルミニウム層の厚さが１００ｎｍ〜５００ｎｍであることを特徴とする、密閉型電池を製造する方法に用いるための封止フィルム。A sealing film for use in a method for producing a sealed battery, wherein the aluminum oxide layer has a thickness of 100 nm to 500 nm.
前記密閉型電池製造方法は、前記ガス抜き工程の後、前記封止フィルムの上面に第二の封止フィルムを溶着することにより前記貫通孔を封止する工程をさらに包含する方法であることを特徴とする、密閉型電池を製造する方法に用いるための封止フィルム。The sealed battery manufacturing method is a method further including a step of sealing the through hole by welding a second sealing film on the upper surface of the sealing film after the degassing step. A sealing film for use in a method for producing a sealed battery.
前記密閉型電池製造方法は、前記封止フィルムの溶着をレーザ透過溶着法により行う方法であることを特徴とする、密閉型電池を製造する方法に用いるための封止フィルム。A sealing film for use in a method for manufacturing a sealed battery, wherein the sealed battery manufacturing method is a method in which the sealing film is welded by a laser transmission welding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009215290A JP5175819B2 (en) | 2009-09-17 | 2009-09-17 | Sealing film for use in a method for producing a sealed battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009215290A JP5175819B2 (en) | 2009-09-17 | 2009-09-17 | Sealing film for use in a method for producing a sealed battery |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008021791A Division JP4378662B2 (en) | 2008-01-31 | 2008-01-31 | Sealed battery manufacturing method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009295595A JP2009295595A (en) | 2009-12-17 |
| JP2009295595A5 true JP2009295595A5 (en) | 2011-03-17 |
| JP5175819B2 JP5175819B2 (en) | 2013-04-03 |
Family
ID=41543564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009215290A Active JP5175819B2 (en) | 2009-09-17 | 2009-09-17 | Sealing film for use in a method for producing a sealed battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5175819B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6071678B2 (en) | 2013-03-22 | 2017-02-01 | 株式会社東芝 | Sealed secondary battery and manufacturing method of sealed secondary battery |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001338674A (en) * | 2000-05-26 | 2001-12-07 | Fdk Corp | Method of manufacturing secondary battery and seal stopper for battery |
| JP2004355977A (en) * | 2003-05-29 | 2004-12-16 | Toshiba Corp | Method for manufacturing nonaqueous electrolyte secondary battery |
| JP4415375B2 (en) * | 2004-05-26 | 2010-02-17 | 株式会社デンソー | Non-aqueous secondary battery and manufacturing method thereof |
| JP2007141774A (en) * | 2005-11-22 | 2007-06-07 | Toyota Motor Corp | Manufacturing method of storage element |
| JP5060051B2 (en) * | 2006-01-17 | 2012-10-31 | トヨタ自動車株式会社 | Sealed battery and method for manufacturing the same |
| JP2007227310A (en) * | 2006-02-27 | 2007-09-06 | Toyota Motor Corp | Lithium secondary battery and method for manufacturing the same |
| JP5135715B2 (en) * | 2006-05-31 | 2013-02-06 | トヨタ自動車株式会社 | Sealed battery and method for manufacturing the same |
| JP4378662B2 (en) * | 2008-01-31 | 2009-12-09 | トヨタ自動車株式会社 | Sealed battery manufacturing method |
-
2009
- 2009-09-17 JP JP2009215290A patent/JP5175819B2/en active Active
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