CN1179425C - 棱柱形电化学电池与电池组 - Google Patents
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Abstract
具有一列矩形电池的电池组,矩形电池具有圆柱形端部并置于矩形电池组容器内;还涉及具有单一矩形化学电池的电池组,而此电池具有圆柱形端部。各电池都具有一基本上收纳着电池的活性物质的矩形段和上面装配上有圆形盖/密封组件的圆柱形端部。
Description
技术领域
本发明一般地涉及电化学电池与电池组,具体地说,涉及电化学电池与在矩形机壳电池组中的多电池组件。
背景技术
传统的碱性电池组一般采用圆柱形电池,各圆柱形电池一般具有分别在其两端配备了正极盖与负极盖的钢壳。此圆柱形电池通常包括最好由二氧化锰、石墨、氢氧化钾溶液、去离子水与TEFLON溶液形成的阴极,此阴极环绕柱形钢壳的内周面形成。围绕此阴极的内表面通常设置一杯形分隔件。阳极典型地由锌粉、胶凝剂和其他的添加剂形成,由电解质溶液分配到上述分隔件内。
标准的碱性电池有市售的产品,可用来提供的约1.5伏的开路电压。当需要较高的电压时,一般的作法是,组合多个电池形成具有所需电压的电池组。这时,通常是将多个电池装放到一容器中并加以串联,以其外部接线端接附到容器上而与此串联电池组相接触。普遍用于火烟探测器和便携式电子装置的标准矩形机壳的9V电池组,具体包括六个串联的1.5伏电池。矩形电池组的一例是采用相互平行配置的两组各三个圆柱形电池,如在美国专利No.4,959,280中以“电池组”为题所公开的,该项专利的内容已综合于此供参考。还知道可将六个1.5V圆柱形电池相互并联排成2×3阵列。但是,应用多个设于矩形容器内的平行配置的圆柱形电池会在相邻电池之间以及各个电池与电池组容器内壁之间形成未被利用的空间。
设计碱性电池组的主要目的在于提高电池的使用性能。使用性能是指电池在一定负载下放到电池不能再用于其预定目的单位电压时的时间。市售的碱性电池与电池组通常具有为工业标准规定的外部尺寸,因而限制了在一定电池内增加活化材料量的能力同时限制了在多电池的电池组内可资利用的容积。为此,需要探寻新路来提高使用性能,而这仍然是电池与电池组设计的主要目的。
发明内容
本发明通过为电池提供棱柱形的外壳,最好是矩形构型的外壳,且具有圆柱形端部,而改进了电池和矩形机壳的多电池电池组的性能。为了达到所述改进性能和取得其他优点的目的,同时依据本发明的在此具体化和描述的目标,本发明提供了具有棱柱段例如矩形段和圆柱形端部构型的电池。此矩形棱柱段具有大致棱柱径向横剖面并装放着包括阴极和阳极的电池的活性材料以及分隔件。阳极最好设在电池的圆柱形内部空间中。电池可以装配上设在所述圆柱形端部上的圆盖与密封组件。
本发明还提供了组装到多个电池的电池组矩形机壳中的许多棱柱形电池如矩形电池。这些电池各构造成具有矩形剖面,允许多个电池紧密地装配到一起而于电池组机壳内使空间的利用最佳化。
本发明提出电化学电池,此电池包括:具有棱柱径向横剖面的棱柱段和封闭的底端的容器,此容器还具有带圆形顶端的圆柱段;设在此棱柱段内的阴极;设在此棱柱段内的阳极;设在阴极与阳极之间的分离件;以及组装到此圆形顶端上的盖。
本发明也提出电化学电池,此电池包括:具有棱柱径向横剖面的棱柱段的容器,此容器还具有侧壁、封闭的底端与圆形顶端;设于此容器内的是在所述棱柱段内的阴极;设于此容器的所述棱柱段的圆柱形容积内的阳极;设于阳极与阴极之间的分离件;以及组装到此容器圆形顶端上的盖。
本发明还多电池电池组,它包括:电池组机壳;正接触端子;负接触端子;以及如上述所规定的多个化学电池,装配于此电池组机壳内并与此正和负接触端子电接触。
本发明再提出装配电化学电池的方法,它包括下述步骤:提供容器,此容器具有棱柱径向横剖面的棱柱段和封闭的底端以及带敞开的圆形顶端;将阴极设于此容器的上述棱柱段内;将分离件设于此容器的棱柱段内并以其一面朝此阴极;将阳极设于此棱柱段内并与分离件的另一面相对;在所述圆形顶端上组装一盖。
本发明进一步提出组装多个电池电池组的方法,此方法包括下述步骤:提供具有侧壁、底与顶的电池组机壳;提供设在机壳上的正与负接触端子;提供多个电化学电池,各电池具有呈棱柱径向横剖面的棱柱段且内设有电池的活性物质,以及圆柱形端部和组装到此端部上的盖;在此矩形机壳内将所述多个电化学电池并排地组成阵列且与所述正与负接触端子作电接触,以使此电化学电池的阵列仿随机壳的形状,而让相邻电池的电池壁的平表面相互面对并仿随此电池组机壳的形状。
通过阅读下面的说明书同时参看附图,那些实施本发明的人以及内行的人当可认识到本发明上述的和其他的特点、目的和优点。
附图说明
图1是依据本发明装配的具有六个带圆柱形端部的矩形电化学电池的矩形电池组的局部透视图;
图2是图1中电池组的顶部平面图,示明组装到电池组机壳中的电池;
图3是图1中电池组的局部的部件分解图;
图4是本发明的具有圆柱形端部的矩形电化学电池的正视图;
图5是图4中电化学电池的顶视图;
图6是沿图5中VI-VI线截取的此电化学电池的横剖图;
图7是沿图5中VII-VII线截取的此电化学电池的横剖图;而
图8是沿图5中VIII-VIII线截取的此电化学电池的横剖图。
具体实施方式
参看图1,所示的多电池电池组10具有最好包括一金属套的矩形机壳12,有不导电的涂层,确定出四个侧壁以及顶部接线端子板14与底部接线端子板16,而这两个端子板分别限定出顶面与底面。电池组10具有通过铆钉(未图示)组装到顶部接线端子板16上的正与负接触端点18与20。根据这里图示和所述的实施例,机壳12的形状与尺寸,同样,此正与负接触端点18与20的位置,即是按现行工业标准的市售标准9V矩形电池提供的。这种规格与形状的9V矩形机壳电池可以广泛购到,特别适用于大烟探测器和便携式电池装置。
在此,矩形构型电池与矩形电池组所收纳的多个电池是根据最佳实施例图示和说明的,但应认识到本发明的原理则不局限于所示实施例。本发明的原理可以适用于具有一般棱柱形的各种多电池的电池组以及各种电化学电池构型。此外,本发明不限于具有二氧化锰/锌的碱性电池,而是可以用于各种其他电池如碳/锌、镍/氢化物、镍/镉、镍/锌、锂/碳/锌以及其他的电化学电池。
根据最佳实施例,电池组10包括多个本发明的具有圆柱形端部的矩形电池30。各矩形电池30最好相互平行地以紧致的关系组装,使得相邻的电池壁紧靠到一起而最好是相互抵靠,其余的电池壁则紧贴机壳的内壁,得以紧凑地配合于电池机壳12之内。这样就能最大限度地耗用机壳12的容积,得以在一定尺寸的电池机壳中来提高可以实现的性能。于是,串联的电池30基本上耗尽了机壳12的内部容积,得以完全利用标准尺寸电池机壳中可资利用的空间。
具体参看图2,可以从除去顶部端子板16与顶盖组件的顶视图来观察机壳12内的电池30所成的组。这六个电池30组成3×2阵列,实质上占尽了电池组10的矩形机壳内可资利用的容积。六个电池30在机壳12内排成交错形式,使各电池30的正与负接线端相对于相邻的电池翻转。这些电池30串联成使得电池组12能在接线端18与20间提供的电池组电源电压等于各个电池30总和的电压。根据一个例子,这六个电池30的每个供应约1.5V电压,从而此电池组能提供约9V电压。
特别参看图3,电池组10及其组件以部件分解图示明且除去了机壳12的金属套壁。电池30设置成与底侧上的底部导电接触带40和顶侧上的顶部导电接触带38接触,这样就给电池组中的电池30提供了串联互连。接触带40装配于薄的绝缘纸26上,此绝缘纸又设在弹性垫28的顶面上。弹性垫28处于电池组10的底部端子板14上。弹性垫28最好包括能提供类弹性表面的橡胶材料。弹性垫28在受压时便把接触带40强行推向底侧上电池30的相应端子,同时将电池30的上部端子推向顶部侧上的接触带38。这种压力接触确保了电池30的连续串联互连。尽管所述的导电接触带给电池提供了压力接触,但应认识到可用常规方法将一或多个接触带焊接到电池上。
接触带38类似地装配成与电池30顶部侧的相应端子接触。接触带38设在可包括纸板的支承垫36之下。相对于支承垫36的对角设置有金属接触垫32与42,它们卷绕到支承垫36的顶侧与底侧之上。接触垫32与42分别装配到薄层绝缘纸34与44之上。金属接触垫32直接接触一个电池30的正端子和电池组10的正接触端子。金属导电垫42直接接触另一电池30的负端子和电池组10的负接触端子18。这两个与接触垫32和42接触的两个电池30处在串联互连的两相对端部。因此,正与负接触端子20与18分别在这两个串联电池30的两端提供了电压垫。
参看图4,其中所示本发明的一个电化学电池30取具有圆柱形端部的矩形钢壳60的构型。钢壳60具有沿此电池绝大部分长度延伸的矩形段50以及设在此顶端附近的圆柱形段52。电池30的矩形段50基本上呈矩形体,经瓶颈段54通过圆角与过渡段到达圆柱段52。圆柱段52便于将圆盖和密封组件56焊接或以其他方式装配到顶端上。
电池30具有由矩形段50的底侧限定的底端58。底端58用作正极盖来提供电池的正极端子。在圆柱形段52的顶端是基本上圆形的密封组件56,它包括电池的负极盖或负极端子62。电池30的顶端还示明于图5中。根据所示的构型,电池30与矩形电池组中所用常规的圆柱形电池相比增大了矩形段50的容积,同时具有易与标准的圆形负极盖与密封组件56相配合的圆柱端52。这同传统的其直径等于圆柱段52侧壁宽度的圆形电池相比,可增多电池的活性物质。
参看图6与8,其中以沿电池30的纵轴线截取的剖面图并相对于这样两个图角位移45°再次示明此电化学电池30。电池30包括矩形的钢壳60,其底端58形成正极端子,同时具有密封组件56且此密封组件具有装配到电池30顶端上的外部负极盖62。薄层的收缩绝缘管72覆盖住钢管60的侧边使金属壳与相邻的电池以及与电池组10的机壳12绝缘。最好是由二氧化锰、石墨、氢氧化钾溶液、去离子水与TEFLON溶液的混合物组成的阴极64,是环绕钢壳60的内周面形成。最好是由无纺织物形成用来阻挡此电池中任何固体粒子移出的杯形隔离件66则绕阴极64的内表面设置。阳极68例如胶凝的阳极以注入或以其他方式设于杯形分离件66的内部。阳极68内设有与其中的浓集的锌接触的集电器70。集电器70给电池的负极端子62提供负接触。
密封组件56给电池30的组件提供了密封,它包括密封体76与加压装置74。密封体76类似碟形,由不导电材料制成。加压装置74是管形的金属件,将密封体76围绕集电器70压紧。密封组件56还包括焊接到集电器70暴露端部上的外部负极盖62以形成电池的负极端子。钢壳60的边沿朝电池体的内部卷曲而形成气密封接。此带有盖62的密封组件56可以包括传统的圆形组件,例如美国专利No.5,422,201中所公开的,其中内容已综合于此供参考。
电池30的矩形段50具有带圆角的基本上是方形的横剖面,各侧壁有相等的宽度W,如图7所示。电池30的包括阳极68与阴极64的活性物质基本上设在矩形段50。通过取矩形构型,电池30的矩形段50内的容积便大于其尺寸可配合到电池30的矩形侧壁内的传统圆柱形电池的。这样就加大了阴极64与阳极68的体积。此外,杯形分隔件66还可离电池30的纵轴线沿径向再向外设置,而能提供使阳极68与阴极64相互分开的较大的阳极-阴极界面。应知另加的活化物质,包括设于阳极64角部内的,会放电增加电池30的电容。
根据一个例子,具有方形横剖面的电池30能够将使用性能比直径等于此方形横剖面侧边宽度W的圆柱形电池的增加约25%。本发明的电池30的矩形构型允许采用多21-25%的活性物质和使阳极-阴极的界面面积增加约12%。阴极-钢壳的接触电阻是传统圆柱形电池高电流放电的显著因素。应用本发明的方形横剖面电池30,由于钢壳-阴极的接触面积增加了27%,电池30可以降低27%的接触电阻。
电池30可以由具有封闭底端和敞开顶端的圆柱形钢壳来开始装配。根据这一实施例,此初始的圆柱形壳可以在矩形模具中再成形为矩形段50。根据一种方法,阴极64的材料设置于此圆柱形壳内而此壳则设于矩形模具内。借助脱模环与此壳密封配合的推杆可以强制地通入此壳内而为前述分隔件与阳极形成柱形通道,于此同时迫使圆柱形壳再成形为由包围的模具所界定的矩形段。在此之后,可以撤出推杆而让分隔件66与阳极68置于此圆柱形开口内。再将集流器70插定就位而将带有外负极盖62的密封组件56装配到所述壳上。或者,电池30的组件可以包括再成形的矩形壳以包括圆柱形端部。还应知道,电池30的机壳50也可以在包括有矩形段和圆柱形段的模具内形成。
虽然电池30是以具有方形横剖面的矩形段予以示明和描述的,但应认识到也可采用具有不相等边的矩形横剖面或其他的棱柱段而并不背离本发明的原理。还应认识到,可以采用其棱柱机壳有圆柱形端部的电化学电池作为单一电池的电池组或多电池电池组的部件而不脱离本发明的精神与范围。
Claims (24)
1.电化学电池(30),此电池包括:
具有一个棱柱径向横剖面的棱柱段和一个封闭的底端(58)的容器(60),此容器还具有带圆形顶端的圆柱段(52);
设在此棱柱段内的阴极(64);
设在此棱柱段内的阳极(68);
设在阴极(64)与阳极(68)之间的分离件(66);以及
组装到此圆形顶端上的盖(62)。
2.电化学电池(30),此电池包括:
具有一个棱柱径向横剖面的棱柱段的容器(60),此容器还具有侧壁、封闭的底端(58)与圆形顶端;
设于此容器(60)内的是在所述棱柱段内的阴极(64);
设于此容器(60)的所述棱柱段的圆柱形容积内的阳极(68);
设于阳极(68)与阴极(64)之间的分离件(66);
以及组装到此容器(60)圆形顶端上的盖。
3.权利要求1或2所述的电化学电池,其中所述盖(62)是圆的并且组装到前述圆形顶端上。
4.权利要求1或2所述的电化学电池,其中有密封组件(56)组装到前述圆形顶端上。
5.权利要求1或2所述的电化学电池,其中所述棱柱径向横剖面是矩形剖面。
6.权利要求5所述的电化学电池,其中所述矩形剖面是方形的横剖面。
7.权利要求1或2所述的电化学电池,其中所述容器(60)包括钢制管壳。
8.多电池电池组(10),它包括:
电池组机壳(12);
正接触端子(18);
负接触端子(20);以及
如上述任一项权利要求所规定的多个化学电池(30),装配于此电池组机壳(12)内并与此正和负接触端子(18,20)电接触。
9.权利要求8所述的电池组,其中所述的电池组机壳(12)为矩形机壳。
10.权利要求8或9所述的电池组,其中所述多个电化学电池是串联的。
11.权利要求8-9任一项所述的电池组,其中所述电池还包括电连接所述多个电化学电池(30)的压力接触带(38,40)。
12.装配电化学电池(30)的方法,它包括下述步骤:
提供容器(60),此容器具有棱柱径向横剖面的棱柱段和封闭的底端(58)以及带敞开的圆形顶端;
将阴极(64)设于此容器(60)的上述棱柱段内;
将分离件(66)设于此容器(60)的棱柱段内并以其一面朝此阴极(64);
将阳极(68)设于此棱柱段内并与分离件(66)的另一面相对;
在所述圆形顶端上组装一盖(62)。
13.权利要求12所述的方法,其中所述棱柱段为矩形段(50)。
14.权利要求12或13所述的方法,其中还包括下列步骤:
将所述阴极(64)设于圆柱形容器内;
将此圆柱形容器置于棱柱模具内;
将推杆推过此圆柱形容器的中央部分而形成阳极用腔,再将此圆柱形容器按此棱柱模具的构型再成形以提供所述的棱柱段。
15.权利要求12或13所述的方法,其中还包括设置一与所述阳极(68)接触的集电器(70)的步骤。
16.权利要求12或13所述的方法,其中所述盖(62)为圆盖。
17.权利要求12或13所述的方法,其中所述设置阳极(68)的步骤中将阳极(68)设在所述棱柱段的圆柱形容积内。
18.组装多个电池电池组(10)的方法,此方法包括下述步骤:
提供具有侧壁、底与顶的电池组机壳(12);
提供设在机壳(12)上的正与负接触端子(18,20);
提供多个电化学电池(30),各电池具有呈棱柱径向横剖面的棱柱段且内设有电池的活性物质(64,68),以及圆柱形端部和组装到此端部上的盖(62);
在此矩形机壳(12)内将所述多个电化学电池(30)并排地组成阵列且与所述正与负接触端子(18,20)作电接触,以使此电化学电池(30)的阵列仿随机壳(12)的形状,而让相邻电池的电池壁的平表面相互面对并仿随此电池组机壳(12)的形状。
19.权利要求18所述的方法,其中每个化学电池(30)内设有阴极(64)、阳极(68)与分离件(66),此阳极(68)则设于此化学电池(30)的棱柱段的圆柱形容积内。
20.权利要求18所述的方法,其中所述盖(62)为圆盖。
21.权利要求18至20中任一项所述的方法,其中所述棱柱段为矩形段(50)。
22.权利要求18至20中任一项所述的方法,其中所述提供多个电化学电池(30)的步骤还包括下述步骤:
将阴极(64)设于圆柱形容器内;将此圆柱形容器置于棱柱模具内;
将推杆推过此圆柱形容器的中央部分而形成阳极用腔,并将此圆柱形容器按此模具构型再成形以提供所述棱柱段,同时将阳极(68)设置到所述阳极用腔内。
23.权利要求18至20中任一项所述的方法,其中还包括将所述多个电化学电池(30)以串联形式进行电连接的步骤。
24.权利要求18至20中任一项所述的方法,其中所述提供电池组机壳(12)的步骤包括提供矩形电池组机壳。
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-
1998
- 1998-07-02 US US09/110,119 patent/US6168883B1/en not_active Expired - Fee Related
- 1998-10-14 EP EP98952281A patent/EP1025598B1/en not_active Expired - Lifetime
- 1998-10-14 JP JP2000516381A patent/JP2001520440A/ja active Pending
- 1998-10-14 DE DE69803090T patent/DE69803090T2/de not_active Expired - Fee Related
- 1998-10-14 CN CNB988120097A patent/CN1179425C/zh not_active Expired - Fee Related
- 1998-10-14 WO PCT/US1998/021620 patent/WO1999019918A1/en active IP Right Grant
- 1998-10-14 AT AT98952281T patent/ATE211308T1/de not_active IP Right Cessation
- 1998-10-14 AU AU98018/98A patent/AU9801898A/en not_active Abandoned
- 1998-10-14 CA CA002305412A patent/CA2305412A1/en not_active Abandoned
-
2000
- 2000-12-11 US US09/734,446 patent/US6521372B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU9801898A (en) | 1999-05-03 |
EP1025598A1 (en) | 2000-08-09 |
US6168883B1 (en) | 2001-01-02 |
DE69803090T2 (de) | 2002-07-18 |
DE69803090D1 (de) | 2002-01-31 |
JP2001520440A (ja) | 2001-10-30 |
US6521372B2 (en) | 2003-02-18 |
ATE211308T1 (de) | 2002-01-15 |
EP1025598B1 (en) | 2001-12-19 |
CN1281589A (zh) | 2001-01-24 |
US20010000238A1 (en) | 2001-04-12 |
CA2305412A1 (en) | 1999-04-22 |
WO1999019918A1 (en) | 1999-04-22 |
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