JP2602648Y2 - Prismatic battery - Google Patents
Prismatic batteryInfo
- Publication number
- JP2602648Y2 JP2602648Y2 JP1993046611U JP4661193U JP2602648Y2 JP 2602648 Y2 JP2602648 Y2 JP 2602648Y2 JP 1993046611 U JP1993046611 U JP 1993046611U JP 4661193 U JP4661193 U JP 4661193U JP 2602648 Y2 JP2602648 Y2 JP 2602648Y2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- battery case
- spiral
- winding
- prismatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Filling, Topping-Up Batteries (AREA)
- Secondary Cells (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は角形電池に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prismatic battery.
【０００２】[0002]
【従来の技術とその課題】従来の電池の注液孔は封口板
上等に設けられていた。しかし、このような位置にある
注液孔では、注液口から渦巻電極群の巻回面に至る距離
が長いので、注液に時間を要していた。2. Description of the Related Art A liquid injection hole of a conventional battery is provided on a sealing plate or the like. However, in the liquid injection hole located at such a position, since the distance from the liquid injection port to the winding surface of the spiral electrode group is long, it takes time for liquid injection.
【０００３】ここに注液時間は、電池の生産性を制限す
る重大な要素となっているため、その短縮化を図ること
が課題とされていた。[0003] Here, the injection time is an important factor that limits the productivity of the battery, and it has been an issue to reduce the injection time.
【０００４】[0004]
【課題を解決するための手段】本考案の角形電池は、帯
状の正負極板をセパレーターを介して楕円渦巻状に巻回
してなる渦巻電極が角筒形電池ケース内に配されている
角形電池において、電池ケースに設けられた電解液注液
孔は、渦巻電極の巻回面を電池ケース上に投影した面内
にあることを特徴とするものである。The prismatic battery according to the present invention has a spiral electrode formed by winding a strip-shaped positive / negative plate in an elliptical spiral shape with a separator interposed therebetween in a prismatic battery case. In the above, the electrolyte injection hole provided in the battery case is in a plane in which the winding surface of the spiral electrode is projected onto the battery case.
【０００５】[0005]
【作用】本考案の電池は、注液された電解液が渦巻電極
の巻回面に直ちに達するので、電極への電解液の浸透吸
収が容易である。この結果、注液時間が大幅に短縮化で
きる。In the battery of the present invention, the injected electrolyte immediately reaches the winding surface of the spiral electrode, so that the electrolyte can be easily absorbed and absorbed into the electrode. As a result, the injection time can be greatly reduced.
【０００６】[0006]
【実施例】図１は、本発明の角形リチウム二次電池を示
した図である。FIG. 1 is a view showing a prismatic lithium secondary battery according to the present invention.
【０００７】正極板１は厚さ20μm のアルミニウム箔の
両面にリチウムコバルト複合酸化物(LiCoO2 ) を主体と
したペースト状活物質を塗布し乾燥・圧延したのち、幅
19mmに切断したものを用いた。また負極板２には厚さ18
μm の銅箔の両面に黒鉛を主体としたペーストを塗布し
乾燥・圧延したのち、幅20mmに切断したものを用いた。
これらの正極板と負極板とを厚さ25μm 、幅22mmのポリ
プロピレン微多孔膜からなるセパレータ３を介して幅33
mm、厚さ0.4mm の巻軸をもちいて楕円渦巻状に巻回し渦
巻電極を得た。The positive electrode plate 1 is formed by applying a paste active material mainly composed of lithium cobalt composite oxide (LiCoO 2 ) to both sides of an aluminum foil having a thickness of 20 μm, drying and rolling,
A piece cut to 19 mm was used. The negative electrode plate 2 has a thickness of 18
A paste mainly composed of graphite was applied to both sides of a copper foil of μm, dried and rolled, and then cut into a width of 20 mm.
The positive electrode plate and the negative electrode plate are separated by a width of 33 μm through a separator 3 composed of a microporous polypropylene film having a thickness of 25 μm and a width of 22 mm.
A spiral electrode having a diameter of 0.4 mm and a thickness of 0.4 mm was spirally wound to obtain a spiral electrode.
【０００８】角筒形有底電池ケース４は、厚さ0.3mm の
ニッケルめっき鋼板をプレス成形したものである。外形
寸法は、6.3mm ×22.1mm×45.8mmで、内寸は5.7mm ×2
1.5mm×45.5mmである。注液孔９は、渦巻電極の巻回面
を電池ケース上に投影した投影面１０内に設けた。すな
わち、開口面より12mm離れた位置に設けた。注液孔９の
直径は1mm である。The rectangular cylindrical bottomed battery case 4 is formed by press-forming a nickel-plated steel sheet having a thickness of 0.3 mm. The outer dimensions are 6.3mm x 22.1mm x 45.8mm, and the inner dimensions are 5.7mm x 2
It is 1.5 mm x 45.5 mm. The liquid injection hole 9 was provided in a projection surface 10 in which the winding surface of the spiral electrode was projected on the battery case. That is, it was provided at a position 12 mm away from the opening surface. The diameter of the injection hole 9 is 1 mm.
【０００９】この角筒状有底電池ケース４に前記の渦巻
電極を巻軸の中心線が電池ケースの開口面と平行であ
り、かつ電極の巻回面が電池ケースの開口面と直角であ
るような方向から挿入した。この場合、渦巻電極は電池
ケースに挿入しやすく、挿入時の活物質の脱落も少なく
なる。[0009] In the rectangular cylindrical bottomed battery case 4, the spiral electrode is wound with the center line of the winding axis parallel to the opening surface of the battery case and the winding surface of the electrode is perpendicular to the opening surface of the battery case. Inserted from such a direction. In this case, the spiral electrode is easily inserted into the battery case, and the falling of the active material during insertion is reduced.
【００１０】封口板をレーザー溶接することにより、電
池ケースを密封した後、先の注液孔から電解液を真空注
液法により注液した。電解液は、電解質に１Ｍのヘキサ
フルオロ燐酸リチウム (LiPF6 ) 、溶媒に炭酸エチレ
ン、炭酸ジメチル、炭酸ジエチルの２：２：１混合物を
用いた。注液量は３ｇである。このようにして製作した
電池を本考案による角形電池（Ａ）とする。[0010] After the battery case was sealed by laser welding the sealing plate, an electrolytic solution was injected from the previous injection hole by a vacuum injection method. The electrolyte used was 1 M lithium hexafluorophosphate (LiPF 6 ) for the electrolyte and a 2: 2: 1 mixture of ethylene carbonate, dimethyl carbonate and diethyl carbonate for the solvent. The injection volume is 3 g. The battery manufactured in this manner is referred to as a prismatic battery (A) according to the present invention.
【００１１】つぎに、本発明の角筒型電池と同じ構成を
有するが、注液孔９の位置のみ異なる従来の角形電池
（Ｂ）を図２に示す。注液孔９は、電池ケースの開口面
より3.5mm 離れた位置に設けられており、渦巻電極の巻
回面を電池ケースに投影した面１０上から外れている。
注液孔９の直径は1mm である。Next, FIG. 2 shows a conventional prismatic battery (B) which has the same structure as the prismatic battery of the present invention, but differs only in the position of the liquid injection hole 9. The liquid injection hole 9 is provided at a position 3.5 mm away from the opening surface of the battery case, and is off the surface 10 on which the winding surface of the spiral electrode is projected on the battery case.
The diameter of the injection hole 9 is 1 mm.
【００１２】電池（Ａ）と電池（Ｂ）に電解液を注液す
るに要した時間の結果を表１に示す。これより従来の電
池（Ｂ）に比べ、本考案の電池（Ａ）の注液時間が顕著
に短いことがわかる。Table 1 shows the results of the time required to inject the electrolyte into the batteries (A) and (B). This indicates that the battery (A) of the present invention has a significantly shorter injection time than the conventional battery (B).
【００１３】[0013]
【表１】 [Table 1]
【００１４】[0014]
【考案の効果】本考案により電解液の注液時間を短縮し
生産性を向上することができた。[Effects of the Invention] According to the present invention, the time for injecting the electrolytic solution can be shortened and the productivity can be improved.
【図１】本考案による角型電池（Ａ）の縦断面図。FIG. 1 is a longitudinal sectional view of a prismatic battery (A) according to the present invention.
【図２】本考案による角型電池（Ａ）を示した図。FIG. 2 is a diagram showing a prismatic battery (A) according to the present invention.
【図３】従来の角型電池（Ｂ）を示した図。FIG. 3 is a view showing a conventional prismatic battery (B).
１ 正極版 ２ 負極版 ３ セパレータ ４ 角筒型有底電池ケース ５ 正極端子 ６ ガスケット ７ 電池蓋 ８ スペーサー ９ 電解液注液孔 １０ 渦巻電極の巻回面を電池ケース上に投影した投
影面DESCRIPTION OF SYMBOLS 1 Positive electrode plate 2 Negative electrode plate 3 Separator 4 Square-bottomed battery case with bottom 5 Positive electrode terminal 6 Gasket 7 Battery lid 8 Spacer 9 Electrolyte injection hole 10 Projection surface of spiral electrode wound on battery case
Claims (2)
円渦巻状に巻回してなる渦巻電極が角筒形電池ケース内
に収納されている角形電池において、 電池ケースに設けられた電解液注液孔は、渦巻電極の巻
回面を電池ケース上に投影した面内にあることを特徴と
する角形電池。1. A rectangular battery in which a spiral electrode formed by winding a belt-like positive and negative electrode plate in an elliptical spiral shape via a separator is housed in a rectangular tubular battery case, wherein an electrolyte solution provided in the battery case is provided. A rectangular battery, wherein the liquid hole is in a plane in which the winding surface of the spiral electrode is projected on the battery case.
円渦巻状に巻回してなる渦巻電極を角筒形有底電池ケー
スの開口面より渦巻電極の巻軸の中心線が開口面と平行
になるように挿入したのち開口面を封口板で密閉した角
形電池であることを特徴とする請求項１記載の角形電
池。2. A spiral electrode formed by winding a belt-like positive / negative electrode plate in an elliptical spiral shape with a separator interposed therebetween is formed such that the center line of the spiral axis of the spiral electrode is parallel to the opening surface from the opening surface of the rectangular cylindrical bottomed battery case. 2. The prismatic battery according to claim 1, wherein the prismatic battery is a prismatic battery whose opening surface is sealed with a sealing plate after being inserted so that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993046611U JP2602648Y2 (en) | 1993-08-03 | 1993-08-03 | Prismatic battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993046611U JP2602648Y2 (en) | 1993-08-03 | 1993-08-03 | Prismatic battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0714562U JPH0714562U (en) | 1995-03-10 |
| JP2602648Y2 true JP2602648Y2 (en) | 2000-01-24 |
Family
ID=12752103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993046611U Expired - Lifetime JP2602648Y2 (en) | 1993-08-03 | 1993-08-03 | Prismatic battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2602648Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4635405B2 (en) * | 2002-11-11 | 2011-02-23 | 株式会社Ｇｓユアサ | battery |
| JP2015135736A (en) * | 2014-01-16 | 2015-07-27 | 株式会社Ｇｓユアサ | Electric storage element |
| JP2015135734A (en) * | 2014-01-16 | 2015-07-27 | 株式会社Ｇｓユアサ | Electric storage element |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3073809B2 (en) * | 1991-09-13 | 2000-08-07 | 旭化成工業株式会社 | High capacity secondary battery |
-
1993
- 1993-08-03 JP JP1993046611U patent/JP2602648Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0714562U (en) | 1995-03-10 |
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