CN1353467A - 二次电池盖 - Google Patents
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Abstract
通过使用也作为接线部件的铆钉和也作为绝缘部件的密封件,省略了接线部件和绝缘部件,因此,只用三个部件,即主体、固体铆钉、密封件形成盖。密封部件包括与圆筒部分分离的法兰部分。圆筒部分通过切割含氟树脂管形成。法兰部分通过冲压聚丙烯树脂薄片形成。因此,部件数量可以减少到四个,所以,与普通盖相比可以减少部件成本和制造成本。
Description
技术领域
本发明涉及二次电池,特别涉及可以低成本制造的改进型二次电池。
背景技术
蜂窝电话以令人吃惊的速度发展。作为这种蜂窝电话的电源,锂离子电池明显地用来代替镍镉电池和镍氢电池。
因为锂离子电池与镍镉电池相比具有较高的工作电压和较大的能量能力,它们较耐用,并具有这样的特性,即在重新充电时质量几乎没有降低。此外,锂离子电池的重量较轻。由于这些优点,它们很适宜用在如蜂窝电话和摄像机等的轻、薄、短小的装置中。
但是,在锂离子电池具有上述优点的同时,锂离子电池的问题是太昂贵。
发明内容
本发明的目的是提供一种比普通锂离子电池廉价的锂离子电池。
为解决上述问题,在本发明中,改进了锂离子电池盖的结构,所以,可以低成本制造锂离子电池,降低整个锂离子电池的成本。首先,参考图2和图3描述普通方形锂离子电池盖的结构。
图2所示的正方形锂离子电池盖10具有用镀铝或镀镍的铁板制成的主体1,并具有与放置它的外壳形状对应的矩形。对于主体1的中心,用于安装引线的矩形接线部件2由铆钉5穿过密封件4与稍微大于接线部件2的绝缘部件3连接在一起。在该图中,如果外壳的内部压力上升,主体1的薄壁部分6的作用就像安全阀。提供的小孔7用于灌注电解液。
下面参考图3描述盖10的这些部件的组合形式,图3是透视图。
如图3所示,在主体1的中心,形成安装接线部件2的孔1a和绝缘部件3。通孔2a和3a也分别形成在接线部件2的中心和绝缘部件3的中心,以便把它们安装到主体1。
用安装接线部件2和绝缘部件3的密封件4是一端具有向外凸缘的圆筒。圆筒部分4b的外径使得它被装配在主体1中心处的安装孔1a中。密封件4由铸模聚丙烯树脂形成。这些部件以下述方式安装到主体1上。
如图3所示,首先,使接线部件2与绝缘部件3层叠,接线部件置于绝缘部件内,使它们的通孔2a和3a的中心对齐。然后,将接线部件2与绝缘部件3放置在主体1上,并使部件2、3的通孔2a和3a的中心与主体1中心上的安装孔1a的中心对齐。
下一步,将密封件4的圆筒部分从主体1背面插入三个部件的通孔1a、2a、3a中。然后,将铆钉5插入主体1背面的密封件4的圆筒部分4b并进行铆接。现在,盖子10处于图2所示的状态。
通过焊接将导线(未示出)安装到接线部件2的表面,从而,将导线安装到主体1。为了确保焊接,如图所示,需要接线部件2的面积具有相对主体1较大的占有率。
但由于焊接技术的进步,可以将所要求焊接的面积减小到基本上等于铆接之后铆钉5端面的面积。
因此,通过使用铆钉5作为接线端,并将导线焊接到铆钉上,可以省略接线端2。由于减少了零件数,就能够以低成本制造盖10。
因此,在本发明中,铆钉5还被用作为接线端2,以至把零件数减少到4个。
此外,通过制造绝缘材料的密封件4,并使用密封件4作为绝缘件3,就可能进一步把零件数减少到3个(见图1B、1C)。
而且,按照本发明,密封件可由圆筒部分4b和法兰部分4a构成(图1A、1B)。下面描述这个结构的优点。
迄今为止,如上所述,绝缘件3由便宜的铸模聚丙烯树脂形成。但如果为减小电池的尺寸(厚度)而将外壳做得较薄的话,焊接小室外壳和盖10产生的热影响将一起增加,所以,热阻较差的聚丙烯树脂不能经受住热。因此,不可能减小尺寸。考虑使用热阻较高的含氟树脂代替聚丙烯树脂。
但含氟树脂不仅昂贵也很难模铸,所以,为了进行模铸,必须使用特殊的含氟树脂。因此,与其它材料相比增加了成本。
在本发明中,密封件4包括圆筒部分4b和法兰部分4a,它们相互之间分离,并且形状简单。
按照这种结构,用于这种简单形状的圆筒部分4b和法兰部分4a的圆盘可由冲压或模压薄片材料制造。这种工作在成本上是很低的。因此,使用昂贵但热阻好的含氟树脂,能够获得比普通最终产品便宜的产品。
同样,在整个密封件4中,法兰部分4a对于圆筒部分4b来说不需要更高的密封性,主要需要绝缘特性。因此,即使在焊接期间它在热累计的影响下变形,也不会引起很大的问题。因此,这部分的形成不使用昂贵的含氟树脂而使用低成本冲压的薄片聚丙烯树脂。这进一步降低了制造成本。
上述描述是参考锂离子电池进行的。本发明不局限于锂离子电池,只要用于连接导线的盖具有相同的结构,它也适用于如镍镉电池和镍氢电池等二次电池。
附图说明
本发明的其它特点和主题在参考附图进行描述后将变得更清楚,其中:
图1A、1B、1C是第一、第二、第三实施例的盖的剖面图;
图2A是普通盖的平面图;
图2B是普通盖的剖面图;
图3是普通盖的透视图。
具体实施方式
下面参考附图描述本发明的实施例。对于与普通盖相同的部件,使用相同的标号并省略对它们的描述。在附图中,未示出连接到盖的导线。
第一实施例
图1A所示的实施例具有普通接线部件2和绝缘部件3的盖10。但密封部件4具有相互之间分离的圆筒部分4b和法兰部分4a。
对于圆筒部分4b,特别需要的是密封性,所以,使用含氟树脂,尽管含氟树脂很昂贵,但它的热阻性很高,在焊接期间它在热累计的影响下几乎不变形。它可由切割含氟树脂管形成。
另一方面,主要需要绝缘特性并允许稍微变形的法兰部分4a,采用把便宜的聚丙烯树脂的薄片冲压成圆环状圆盘形成。
对于圆筒部分4b和法兰部分4a,由于使用制成的树脂管和平板而不使用复杂的模铸成型,就可以制出比相互之间成整体的具有圆筒部分4b和法兰部分4a的密封件4成本低的密封件。
第二实施例
在图1B所示的实施例中,通过使用也作为接线部件2的铆钉5和也作为绝缘部件3的密封件4,省略了接线部件2和绝缘部件3,只用三个部件形成盖10,即主体1、固体铆钉、密封件4。
对于密封件4,与第一实施例一样,圆筒部分4b和法兰部分4a用单独的部件形成。圆筒部分4b通过切割含氟树脂管形成,法兰部分4a通过冲压聚丙烯树脂的薄片形成。
因为这个实施例没有接线部件2或绝缘部件3,部件成本和制造成本较低。
第三实施例
在图1C所示的实施例中,不用把密封部件4分割成像第二实施例一样的圆筒部分4b和法兰部分4a,使用喷射模铸制成的整体。
通过这种结构,部件的数量少于第二实施例,并能够减少到只剩三个,即主体1、固体铆钉、密封件4。因此,简化了安装。
但是,因为具有相互之间成整体的圆筒部分4b和法兰部分4a的复杂性状不能由挤压模铸形成,只能由喷射模铸形成。如上所述,在这个方法中,不使用提高成本的含氟树脂而使用聚丙烯树脂。
于是,由于聚丙烯树脂的热阻性比含氟树脂的差,为使热扩散到周围,与第二实施例相比,这个实施例适用于宽度和长度较大的尺寸。
如上所述,每个实施例的盖10的结构适用于镍镉电池、镍氢电池或任何其它二次电池。按照上述结构,它们可以比普通电池便宜地制造出来。
在本发明中,因为二次电池盖是上述结构,所以,二次电池可以比普通二次电池成本低的制造出来。
Claims (7)
1.一种二次电池盖,所述盖包括具有孔的平板型主体,接线部件和绝缘部件叠置在所述主体内形成的孔的外边缘上,所述绝缘部件排列在所述接线部件下面,圆筒密封部件的一端具有法兰部分,法兰部分插入所述孔,铆钉插入所述密封部件并密封,以把所述接线部件和所述绝缘部件铆接到所述主体上,其特征在于:
所述密封部件包括具有孔的平板,以形成所述法兰部分,圆筒部分与所述法兰部分分离。
2.按权利要求1所述的二次电池盖,其特征在于所述圆筒部分由含氟树脂制成。
3.一种二次电池盖,所述盖包括具有孔的平板型主体,绝缘部件安装在形成在所述主体内的孔内,圆筒密封部件的一端具有法兰部分并插入在所述孔内,铆钉插入所述密封部件并密封,以把所述绝缘部件和所述密封部件铆接到主体上,导线安装到所述铆钉的一个端面上。
4.一种二次电池盖,所述盖包括具有孔的平板型主体,圆筒密封部件插入在所述主体内形成的孔内,所述密封件的一端具有法兰部分并由绝缘材料制成,铆钉插入所述密封部件并密封,以把所述密封部件铆接到主体上,导线安装到所述铆钉的一个端面上。
5.按权利要求3或4所述的二次电池盖,其特征在于所述密封部件由含氟树脂制成。
6.按权利要求3或4所述的二次电池盖,其特征在于所述密封部件包括具有孔的平板,以形成所述法兰部分,圆筒部分与所述法兰部分分离。
7.按权利要求6所述的二次电池盖,其特征在于所述圆筒部分由含氟树脂制成。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000346407A JP2002151022A (ja) | 2000-11-14 | 2000-11-14 | 二次電池の蓋 |
JP346407/2000 | 2000-11-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1353467A true CN1353467A (zh) | 2002-06-12 |
CN1224117C CN1224117C (zh) | 2005-10-19 |
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CNB011349182A Expired - Fee Related CN1224117C (zh) | 2000-11-14 | 2001-11-14 | 二次电池盖 |
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Country | Link |
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US (1) | US6835494B2 (zh) |
JP (1) | JP2002151022A (zh) |
KR (1) | KR20020037687A (zh) |
CN (1) | CN1224117C (zh) |
TW (1) | TW527741B (zh) |
Cited By (5)
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CN100347876C (zh) * | 2002-10-21 | 2007-11-07 | 三星Sdi株式会社 | 包括盖组件的二次电池及盖组件的制造方法 |
CN101176908B (zh) * | 2006-11-06 | 2010-06-16 | 比亚迪股份有限公司 | 一种铆接方法及锂离子电池电极极柱和盖板的联接方法 |
CN102280598A (zh) * | 2011-01-27 | 2011-12-14 | 丁振荣 | 锂电池盖帽、制作方法及锂电池 |
CN101651229B (zh) * | 2008-08-14 | 2012-07-11 | 三星Sdi株式会社 | 二次电池 |
CN113097663A (zh) * | 2021-04-30 | 2021-07-09 | 深圳市科达利实业股份有限公司 | 一种壳体套件及动力电池 |
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KR100751310B1 (ko) * | 2001-09-24 | 2007-08-22 | 삼성에스디아이 주식회사 | 캡 조립체 및, 그것을 구비한 각형 2 차 전지 |
JP2003151528A (ja) * | 2001-11-14 | 2003-05-23 | Nec Tokin Tochigi Ltd | 密閉型電池 |
JP2003173767A (ja) * | 2001-12-04 | 2003-06-20 | Nec Tokin Tochigi Ltd | 密閉型電池 |
US7871725B2 (en) * | 2002-04-15 | 2011-01-18 | Samsung Sdi Co., Ltd. | Secondary battery with enhanced ability to prevent leakage |
JP4629998B2 (ja) * | 2004-04-22 | 2011-02-09 | パナソニック株式会社 | 密閉型二次電池 |
JP4715114B2 (ja) * | 2004-06-17 | 2011-07-06 | トヨタ自動車株式会社 | 電池ケース蓋用パッキン、電池ケース蓋の製造方法、電池の製造方法 |
CN1655389A (zh) * | 2005-03-04 | 2005-08-17 | 北京中信国安盟固利新材料技术研究院有限公司 | 大容量金属外壳锂离子二次电池 |
KR100707338B1 (ko) * | 2005-10-17 | 2007-04-13 | 주식회사 비츠로셀 | 전지용 헤더 어셈블리 |
US8420254B2 (en) * | 2007-12-25 | 2013-04-16 | Byd Co. Ltd. | End cover assembly for an electrochemical cell |
CN201436692U (zh) * | 2009-02-12 | 2010-04-07 | 上海比亚迪有限公司 | 一种圆柱形锂二次电池盖帽组件及使用该盖帽组件的电池 |
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JP6066283B2 (ja) * | 2012-12-07 | 2017-01-25 | 台達電子工業股▲ふん▼有限公司Deltaelectronics,Inc. | 固定構造、および、電池の製造方法 |
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KR101994167B1 (ko) * | 2018-03-08 | 2019-07-01 | 주식회사 비츠로셀 | 리튬전지용 헤더 어셈블리 |
US20220271405A1 (en) * | 2021-02-19 | 2022-08-25 | Lg Energy Solution, Ltd. | Riveting structure of electrode terminal, and cylindrical battery cell, battery pack and vehicle including the same |
CN116435721B (zh) * | 2023-06-12 | 2024-05-24 | 深圳海辰储能科技有限公司 | 极柱组件、端盖组件、储能装置及用电设备 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5860862U (ja) * | 1981-10-20 | 1983-04-23 | 三洋電機株式会社 | 電池 |
JP2897104B2 (ja) * | 1994-06-03 | 1999-05-31 | 古河電池株式会社 | 密閉型アルカリ蓄電池の製造方法 |
US6132900A (en) * | 1996-12-25 | 2000-10-17 | Matsushita Electric Industrial Co., Ltd. | Method of production of non-aqueous electrolyte battery and seal plate thereof |
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JPH11167909A (ja) * | 1997-12-03 | 1999-06-22 | Matsushita Electric Ind Co Ltd | 非水電解液電池用防爆弁装置 |
KR100274889B1 (ko) * | 1998-05-08 | 2001-02-01 | 김순택 | 각형 이차전지의 캡 어셈블리 |
-
2000
- 2000-11-14 JP JP2000346407A patent/JP2002151022A/ja active Pending
-
2001
- 2001-11-12 KR KR1020010070123A patent/KR20020037687A/ko not_active Application Discontinuation
- 2001-11-14 CN CNB011349182A patent/CN1224117C/zh not_active Expired - Fee Related
- 2001-11-14 US US09/987,385 patent/US6835494B2/en not_active Expired - Fee Related
- 2001-11-14 TW TW090128215A patent/TW527741B/zh not_active IP Right Cessation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100347876C (zh) * | 2002-10-21 | 2007-11-07 | 三星Sdi株式会社 | 包括盖组件的二次电池及盖组件的制造方法 |
CN101176908B (zh) * | 2006-11-06 | 2010-06-16 | 比亚迪股份有限公司 | 一种铆接方法及锂离子电池电极极柱和盖板的联接方法 |
CN101651229B (zh) * | 2008-08-14 | 2012-07-11 | 三星Sdi株式会社 | 二次电池 |
CN102280598A (zh) * | 2011-01-27 | 2011-12-14 | 丁振荣 | 锂电池盖帽、制作方法及锂电池 |
CN102280598B (zh) * | 2011-01-27 | 2014-03-12 | 丁振荣 | 锂电池盖帽、制作方法及锂电池 |
CN113097663A (zh) * | 2021-04-30 | 2021-07-09 | 深圳市科达利实业股份有限公司 | 一种壳体套件及动力电池 |
Also Published As
Publication number | Publication date |
---|---|
JP2002151022A (ja) | 2002-05-24 |
US6835494B2 (en) | 2004-12-28 |
KR20020037687A (ko) | 2002-05-22 |
TW527741B (en) | 2003-04-11 |
CN1224117C (zh) | 2005-10-19 |
US20020058184A1 (en) | 2002-05-16 |
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