JP2000182592A - Battery - Google Patents
BatteryInfo
- Publication number
- JP2000182592A JP2000182592A JP10358957A JP35895798A JP2000182592A JP 2000182592 A JP2000182592 A JP 2000182592A JP 10358957 A JP10358957 A JP 10358957A JP 35895798 A JP35895798 A JP 35895798A JP 2000182592 A JP2000182592 A JP 2000182592A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- electrode group
- insulating ring
- sealing plate
- electrode
- 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.)
- Granted
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Cell Separators (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電池の電極群と封
口板との間に配した絶縁リングに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulating ring disposed between an electrode group of a battery and a sealing plate.
【０００２】[0002]
【従来の技術】近年、各種ポ−タブル機器の普及に伴
い、密閉型蓄電池が広く用いられておりニッケルカドミ
ウム電池、ニッケル水素電池、リチウム二次電池がその
代表である。これらの電池の多くは正・負極板をセパレ
−タを介して渦巻状に巻回した電極群を電池ケ−スに収
納し、その正極側リ−ドをケ−ス開口部を封口する封口
板に溶接する方法が一般的であり、負極はそれ自体を電
池ケ−ス内壁と接触させるか、リ−ド先端をケ−ス内底
部に溶接している。2. Description of the Related Art In recent years, with the spread of various portable devices, sealed storage batteries have been widely used, and nickel cadmium batteries, nickel hydrogen batteries, and lithium secondary batteries are representative. In many of these batteries, an electrode group in which positive and negative plates are spirally wound via a separator is housed in a battery case, and the positive electrode lead is sealed in a case opening. The method of welding to a plate is common, and the negative electrode itself is brought into contact with the inner wall of the battery case, or the leading end of the lead is welded to the inner bottom of the case.
【０００３】[0003]
【発明が解決しようとする課題】これらポ−タブル機器
に用いられる電池は、市場で落下衝撃や、繰り返し振動
が加えられる苛酷な条件で使用される場合がある。電池
は、その内部で極板群が移動、振動を繰り返し、極板群
上部より突出した正極リ−ド部の変形が起こり、ケ−ス
溝部又は、電極群上部の負極板端と接触し、いわゆる電
池の内部短絡を起こして電池の電圧が低下するという課
題があった。The batteries used in these portable devices may be used in the market under severe conditions where drop impact or repeated vibrations are applied. In the battery, the electrode group repeatedly moves and vibrates inside the battery, and the positive electrode lead protruding from the upper part of the electrode group is deformed, and comes into contact with the case groove or the end of the negative electrode plate above the electrode group, There has been a problem that a so-called internal short circuit occurs in the battery and the voltage of the battery decreases.
【０００４】本発明は、上記の問題点を解決するもので
あり、耐衝撃性に優れた電池を提供することを目的とし
ている。[0004] The present invention has been made to solve the above problems, and has as its object to provide a battery having excellent impact resistance.
【０００５】[0005]
【課題を解決するための手段】この課題を解決するため
に本発明は、正・負極板とセパレ−タを渦巻状に巻回し
た電極群と封口板との間に、その上部が封口板底面に接
し、その下部が電極群に加圧状態で接する絶縁リングを
配置したもので、電極群を確実に固定することにより、
衝撃、振動による正極リ−ド部の変形を抑え、ケ−ス溝
部又は、電極群上部負極端との接触を防止するもので、
電池の耐衝撃性を高めるものである。SUMMARY OF THE INVENTION In order to solve this problem, the present invention is directed to a sealing plate between a positive / negative electrode plate, an electrode group in which a separator is spirally wound, and a sealing plate. An insulating ring that is in contact with the bottom surface and the lower part is in contact with the electrode group in a pressurized state is arranged.
It suppresses deformation of the positive electrode lead due to shock and vibration, and prevents contact with the case groove or the negative electrode end on the upper electrode group.
This is to enhance the impact resistance of the battery.
【０００６】[0006]
【発明の実施の形態】本発明の実施の形態について、図
面に基づき説明する。図１は本発明の絶縁リングを配置
した電池の断面略図である。図１において、１が金属性
の電池ケ−スである。２はケ−ス１の上部に電気絶縁性
と気密性とを持ったガスケット３を介してかしめ固定さ
れる金属性の封口板である。なお４は正・負極板及びセ
パレ−タからなる渦巻状電極群である。５が４に示す電
極群と封口板の間にに収納された正極リ−ドである。本
発明の特徴である絶縁リングは６である。これは、図に
示すよう上部は封口板に下部は周縁部に設けられた鍔部
６ａで電極群に密着した形で極板群を加圧固定しケ−ス
内での電極群の移動を抑制している。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic sectional view of a battery provided with the insulating ring of the present invention. In FIG. 1, reference numeral 1 denotes a metallic battery case. Reference numeral 2 denotes a metallic sealing plate which is caulked and fixed to the upper part of the case 1 via a gasket 3 having electrical insulation and airtightness. Reference numeral 4 denotes a spiral electrode group including a positive / negative electrode plate and a separator. Reference numeral 5 denotes a positive electrode lead housed between the electrode group shown in 4 and the sealing plate. The number of insulating rings, which is a feature of the present invention, is six. This is because, as shown in the figure, the electrode plate group is pressed and fixed in the form in which the upper portion is in close contact with the electrode group by the sealing plate at the lower portion and the flange portion 6a provided at the peripheral portion to move the electrode group within the case. Restrained.
【０００７】また図２は、絶縁リングの実施形態の例で
（Ａ）の形状の他に、電極群の中央部により近い部分を
固定できる形状（Ｂ）や、正極リ−ドと極板群との接触
を防止する形状（Ｃ）を採用するとさらに耐衝撃性の効
果は高くなる。FIG. 2 shows an example of an embodiment of an insulating ring. In addition to the shape shown in FIG. 2A, a shape (B) in which a portion closer to the center of the electrode group can be fixed, and a positive electrode lead and an electrode plate group. If the shape (C) for preventing contact with the metal is adopted, the effect of impact resistance is further enhanced.
【０００８】次に、本発明の具体例を説明する。図２
（Ａ）に示した絶縁リングを使用した電池を本発明電池
Ａ、図２（Ｃ）に示した絶縁リングを使用した電池を本
発明電池Ｃ、図３に示した絶縁リングを使用した電池を
比較電池Ｄとし、１．５ｍの高さよりコンクリ−ト上に
落下させて電池電圧の異常の発生率を調べた。Next, a specific example of the present invention will be described. FIG.
The battery using the insulating ring shown in FIG. 2A is the battery A of the present invention, the battery using the insulating ring shown in FIG. 2C is the battery C of the present invention, and the battery using the insulating ring shown in FIG. A comparative battery D was dropped on concrete at a height of 1.5 m, and the occurrence rate of abnormal battery voltage was examined.
【０００９】[0009]
【表１】 [Table 1]
【００１０】（表１）より明らかなように本発明の電池
は耐衝撃性の点で優れた効果が得られることがわかる。As is clear from Table 1, the battery of the present invention has an excellent effect in terms of impact resistance.
【００１１】以上の効果は、円筒形電池ばかりではな
く、角形電池においても同様な効果が得られる。The above effects can be obtained not only for a cylindrical battery but also for a square battery.
【００１２】[0012]
【発明の効果】以上のように本発明は、電極群と封口板
の間に加圧状態で配した絶縁リングを用いることによ
り、落下衝撃、振動による電極群の移動を抑制し、正極
リ−ドと電池ケ−ス又は負極板との接触を防止するとい
う耐衝撃性に優れた電池を提供できるものである。As described above, according to the present invention, the use of an insulating ring arranged in a pressurized state between an electrode group and a sealing plate suppresses the movement of the electrode group due to a drop impact and vibration, and a positive electrode lead and An object of the present invention is to provide a battery excellent in impact resistance that prevents contact with a battery case or a negative electrode plate.
【図１】本発明の絶縁リングが配置された電池を示す断
面図FIG. 1 is a sectional view showing a battery provided with an insulating ring of the present invention.
【図２】（Ａ）本発明の絶縁リングの１例を示す斜視図 （Ｂ）本発明の絶縁リングの１例を示す斜視図 （Ｃ）本発明の絶縁リングの１例を示す斜視図2A is a perspective view showing an example of the insulating ring of the present invention. FIG. 2B is a perspective view showing one example of the insulating ring of the present invention. FIG. 2C is a perspective view showing one example of the insulating ring of the present invention.
【図３】従来の電池の絶縁リングを示す斜視図FIG. 3 is a perspective view showing an insulating ring of a conventional battery.
【符号の説明】 １ 電池ケ−ス ２ 封口板 ３ ガスケット ４ 電極群 ５ 正極リ−ド ６ 絶縁リング ６ａ 鍔部[Description of Signs] 1 Battery case 2 Sealing plate 3 Gasket 4 Electrode group 5 Positive electrode lead 6 Insulating ring 6a Flange
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 5H011 AA01 BB04 FF02 GG01 GG02 JJ11 JJ27 KK04 5H021 AA04 AA06 BB02 BB04 CC17 HH06 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H011 AA01 BB04 FF02 GG01 GG02 JJ11 JJ27 KK04 5H021 AA04 AA06 BB02 BB04 CC17 HH06
Claims (1)
した電極群と封口板との間に加圧状態で配した絶縁リン
グを備えた電池。1. A battery comprising an insulating ring in which a positive / negative electrode plate and a separator are spirally wound and an electrode group is disposed between the electrode group and a sealing plate in a pressurized state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35895798A JP4366738B2 (en) | 1998-12-17 | 1998-12-17 | Lithium secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35895798A JP4366738B2 (en) | 1998-12-17 | 1998-12-17 | Lithium secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000182592A true JP2000182592A (en) | 2000-06-30 |
| JP4366738B2 JP4366738B2 (en) | 2009-11-18 |
Family
ID=18461994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35895798A Expired - Fee Related JP4366738B2 (en) | 1998-12-17 | 1998-12-17 | Lithium secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4366738B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100696786B1 (en) * | 2005-04-27 | 2007-03-19 | 삼성에스디아이 주식회사 | cylinder type rechargeable battery |
| EP1876660A1 (en) * | 2005-04-22 | 2008-01-09 | Matsushita Electric Industrial Co., Ltd. | Secondary battery |
| KR100839782B1 (en) | 2006-11-30 | 2008-06-19 | 삼성에스디아이 주식회사 | Secondary battery |
| US9385361B2 (en) | 2013-01-03 | 2016-07-05 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| WO2018204095A1 (en) * | 2017-05-02 | 2018-11-08 | Apple Inc. | Rechargeable battery features and components |
-
1998
- 1998-12-17 JP JP35895798A patent/JP4366738B2/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1876660A1 (en) * | 2005-04-22 | 2008-01-09 | Matsushita Electric Industrial Co., Ltd. | Secondary battery |
| EP1876660A4 (en) * | 2005-04-22 | 2009-03-04 | Panasonic Corp | Secondary battery |
| US7704631B2 (en) | 2005-04-22 | 2010-04-27 | Panasonic Corporation | Secondary battery with improved shock resistance |
| KR100696786B1 (en) * | 2005-04-27 | 2007-03-19 | 삼성에스디아이 주식회사 | cylinder type rechargeable battery |
| KR100839782B1 (en) | 2006-11-30 | 2008-06-19 | 삼성에스디아이 주식회사 | Secondary battery |
| US9385361B2 (en) | 2013-01-03 | 2016-07-05 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| WO2018204095A1 (en) * | 2017-05-02 | 2018-11-08 | Apple Inc. | Rechargeable battery features and components |
| US10431853B2 (en) | 2017-05-02 | 2019-10-01 | Apple Inc. | Rechargeable battery features and components |
| US10446876B2 (en) | 2017-05-02 | 2019-10-15 | Apple Inc. | Rechargeable battery features and components |
| CN110582866A (en) * | 2017-05-02 | 2019-12-17 | 苹果公司 | Rechargeable battery features and components |
| CN110582866B (en) * | 2017-05-02 | 2023-01-31 | 苹果公司 | Rechargeable battery features and components |
| US11600865B2 (en) | 2017-05-02 | 2023-03-07 | Apple Inc. | Rechargeable battery features and components |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4366738B2 (en) | 2009-11-18 |
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