CN101207221B - 圆柱体金属发泡电池 - Google Patents

圆柱体金属发泡电池 Download PDF

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CN101207221B
CN101207221B CN2006101554486A CN200610155448A CN101207221B CN 101207221 B CN101207221 B CN 101207221B CN 2006101554486 A CN2006101554486 A CN 2006101554486A CN 200610155448 A CN200610155448 A CN 200610155448A CN 101207221 B CN101207221 B CN 101207221B
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metal foaming
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傅理平
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    • YGENERAL 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
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Abstract

圆柱体金属发泡电池,有金属发泡的正极电池板、金属发泡的负极电池板和位于正、负极电池板之间的隔膜制成的电池芯,在电池芯外安装壳体,其特征在于所述的电池芯是金属发泡正极电池板与隔膜相重叠的两侧和上、下边界差距长度为L,金属发泡负极电池板与隔膜相重叠的两侧和上、下边界差距长度为L,一起卷成圆柱形的电池芯,在卷制的电池芯一端有负电极铸焊层,负电极铸焊层有引出负电极极耳,另一端有正电极铸焊层,正电极铸焊层有引出正电极极耳。

Description

圆柱体金属发泡电池 
技术领域
本发明涉及电池,特别是涉及圆柱体金属发泡电池,主要是为电动车辆(如电动车、汽车等)提供动力源。 
背景技术
随着油价的上涨和汽车尾气排放对环境的影响,摩托车已慢慢地被电动车所替代,电动汽车已起步发展,作为电动车辆动力源的电池,其容量、放电循环寿命和电压等指标已成为人们关注的焦点。已有电池极板由内部框架、粘合物及电池材料组成,其缺陷在于:由于该单体电池为平面结构,与电解液的接触面积小,导电能力差;电极传输电流的能力正比于电极与电解液的接触面积,因此现有的平面结构的电极的导电能力是有限的,容量低,尤其不适合于大电流充放电;平面结构机械化生产麻烦,实施难度大。而一般的圆柱体电池正电极、隔膜和负电极卷绕后,正电极、负电极分别直接从一端用极耳引出,因此,一方面影响电池功率,另一方面由于正电极、负电极材料为铝箔、铜箔,在大电流充放电下,或撞击后,容易出现断裂,从而影响电池的品质和使用寿命。 
发明内容
本发明的目的是为了克服已有技术存在的缺点,提供一种容量高,适用于大电流充放电,使用寿命长,制作工艺简单,有利于机械化操作的圆柱体金属发泡电池。 
本发明圆柱体金属发泡电池的技术方案是:有金属发泡的正极电池板、金属发泡的负极电池板和位于正、负极电池板之间的隔膜制成的电池芯,在电池芯外安装壳体,其特征在于所述的电池芯是金属发泡正极电池板、隔膜和金属发泡负极电池板错开摆放成左右两侧和上、下边界差距长度为L,一起卷成圆柱形的电池芯,在卷制的电池芯一端有负电极铸焊层,负电极铸焊层有引出负电极极耳,另一端有正电极铸焊层,正电极铸焊层有引出正电极极耳。 
本发明的圆柱体金属发泡电池,由于金属发泡的正极电池板、隔膜和金属发泡的负极电池板的左右两侧和上、下边界分别有差距长度为L的错开位置,卷制成圆柱体后,就可在外露的正极电池板边缘和负极电池板边缘分别进行铸焊,正电极铸焊层有引出正电极极耳,负电极铸焊层有引出负电极极耳,充电时,正电子顺着正电极极耳积聚到正极电池板,负电子顺着负电极极耳积聚到负极电池板。与已有的平面结构的金属发泡电池相比,具有导电能力强,容量比提高20%,可用于大电流充放电,如作为汽车动力源,并且使用寿命可提高两倍,卷制加工工艺简 单,有利于机械化生产。电池芯上、下端面分别有铸焊层,可有效防止里面的金属发泡正、负极电池板受潮而生锈,并防氧化,延长电池使用寿命。 
本发明的圆柱体金属发泡电池,其所述的金属发泡的正极电池板和金属发泡的负极电池板是一个刚性、丝网交接状的导电体,丝网交接状的导电体间有不规则的通孔,在其表面再附着电池材料,并保持开孔。金属发泡正、负电池板由可导电织物形成若干个开口通道,同时这些织状物相连接的连续节点支持该结构能在各个方向上经受压缩、延展、弯曲、振动、加速等机械冲击。采用该种结构,能够增大电池板与电解液的容量和电池的体积,同时保持足够的机构强度。其所述的正极电池板铸焊层和负极电池板铸焊层为合金材料,隔绝效果更好。 
附图说明
图1是本发明圆柱体金属发泡电池断面为螺旋形示意图; 
图2是本发明圆柱体金属发泡电池的结构示意图; 
图3是正极电池板、隔膜和负极电池板未卷前边界错开示意图。 
具体实施方式
本发明公开了一种圆柱体金属发泡电池,如图1-图3所示,有金属发泡的正极电池板1、金属发泡的负极电池板2和位于正、负极电池板之间的隔膜3制成的电池芯,在电池芯外安装壳体10,其主要的技术特征在于所述的电池芯是金属发泡正极电池板1与隔膜3相重叠的两侧和上、下边界差距长度为L,金属发泡负极电池板2与隔膜3相重叠的两侧和上、下边界差距长度为L,一起卷成圆柱形的电池芯,在卷制的电池芯一端有负电极铸焊层8,负电极铸焊层8有引出负电极极耳5,另一端有正电极铸焊层7,正电极铸焊层7有引出正电极极耳4。在实际生产中,首先把金属发泡正极电池板1、隔膜3和金属发泡负极电池板2错开摆放成左右两侧和上、下边界差距长度为L,一起卷制成圆柱体后,从金属发泡负极电池板2引出负电极极耳5,从金属发泡正极电池板1引出正电极极耳4,在装配好的电池芯外安装壳体10,最后在外露的金属发泡正极电池板1边缘和金属发泡负极电池板2边缘分别进行铸焊。其所述的金属发泡的正极电池板1和金属发泡的负极电池板2是一个刚性、丝网交接状的导电体,丝网交接状的导电体间有不规则的通孔,在其表面再附着电池材料,并保持开孔,这样即形成了一个多孔渗透的结构,使得整个电池板暴露,与电池中的电解液充分接触,孔的大小以及织物的大小长度由工艺流程决定。采用该种结构,能够增大电池板与电解液的容量和电池的体积,同时保持足够的机构强度。其所述的正电极铸焊层7和负电极铸焊层8为合金材料,使隔绝效果更好。 

Claims (3)

1.圆柱体金属发泡电池,有金属发泡的正极电池板(1)、金属发泡的负极电池板(2)和位于正、负极电池板之间的隔膜(3)制成的电池芯,在电池芯外安装壳体(10),其特征在于所述的电池芯是金属发泡正极电池板(1)、隔膜(3)和金属发泡负极电池板(2)错开摆放成左右两侧和上、下边界差距长度为L,一起卷成圆柱形的电池芯,在卷制的电池芯一端有负电极铸焊层(8),负电极铸焊层(8)有引出负电极极耳(5),另一端有正电极铸焊层(7),正电极铸焊层(7)有引出正电极极耳(4)。
2.如权利要求1所述的圆柱体金属发泡电池,其特征在于所述的金属发泡的正极电池板(1)和金属发泡的负极电池板(2)是一个刚性、丝网交接状的导电体,丝网交接状的导电体间有不规则的通孔,在其表面再附着电池材料,并保持开孔。
3.如权利要求1所述的圆柱体金属发泡电池,其特征在于所述的正电极铸焊层(7)和负电极铸焊层(8)为合金材料。
CN2006101554486A 2006-12-22 2006-12-22 圆柱体金属发泡电池 Expired - Fee Related CN101207221B (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6485865B1 (en) * 1999-06-15 2002-11-26 Katayama Special Industries, Ltd. Porous metal sheet, battery electrode plate composed of porous metal sheet and battery having electrode plate
CN1624961A (zh) * 2004-11-11 2005-06-08 南亚塑胶工业股份有限公司 多层烧结结构的空气电极及其制法
CN201004478Y (zh) * 2006-12-22 2008-01-09 傅理平 圆柱体金属发泡电池

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6485865B1 (en) * 1999-06-15 2002-11-26 Katayama Special Industries, Ltd. Porous metal sheet, battery electrode plate composed of porous metal sheet and battery having electrode plate
CN1624961A (zh) * 2004-11-11 2005-06-08 南亚塑胶工业股份有限公司 多层烧结结构的空气电极及其制法
CN201004478Y (zh) * 2006-12-22 2008-01-09 傅理平 圆柱体金属发泡电池

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