CN112366402A - 一种软包电芯无模组电池单元和加工工艺 - Google Patents
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Abstract
本发明的一种软包电芯无模组电池单元和加工工艺,包括长条形的铝框所述铝框内均布有若干堆叠电芯,堆叠电芯上连接有柔性电路板;相邻堆叠电芯之间设置有电芯限位块,所述电芯限位块的中部设置有单元绝缘块。本发明能够缩短模组单元的传热途径,增大了Z向的可利用空间。
Description
技术领域
本发明属于电动汽车技术领域,尤其涉及一种软包电芯无模组电池单元和加工工艺。
背景技术
电动汽车已是当今的汽车技术发展主要趋势,电池包系统是电动汽车的唯一动力来源,电池包系统最重要的组成部分之一为电池模组。按照电芯的封装形式不同,电芯分为圆柱形电芯,方形电芯,软包电芯。对于软包电芯的集成,最通用的做法,先对单体电芯进行集成成模组,然后将模组集成至电池包系统中。
软包电芯由于其本身强度较弱,因此电池系统集成的第一步,需要对电芯进行足够的保护。电池系统集成的第二步,对模组集成时,电池包会对模组进行保护。因此电池系统对电芯的保护达到2层以上,不仅物料种类较多,系统体积利用率较低,重量较重,成本也较贵。
发明内容
本发明所要解决的技术问题是针对背景技术的不足提供了一种软包电芯无模组电池单元和加工工艺,其能够缩短模组单元的传热途径,增大了Z向的可利用空间。
本发明为解决上述技术问题采用以下技术方案:
一种软包电芯无模组电池单元,包括长条形的铝框,所述铝框内均布有若干堆叠电芯,堆叠电芯上连接有柔性电路板;相邻堆叠电芯之间设置有电芯限位块,所述电芯限位块的中部设置有单元绝缘块。
一种软包电芯无模组电池单元的加工工艺,
步骤1:铝挤出件形成合适的铝框;
步骤2:将软包电芯,缓冲材料通过胶水黏连,堆叠成块,做成堆叠电芯;
步骤3:通过机械手将堆叠电芯塞入铝框中;
步骤4:将电芯限位块焊接在相邻的堆叠电芯之间;
步骤5:在电芯限位块中部安装单元绝缘块;
步骤6:采用激光焊接工艺焊接按串并联需求,分别将电芯的极耳与汇流排进行焊接;
步骤7:柔性电路板采样触点与并联的电芯极耳接触,采用激光焊接工艺进行焊接。
本发明采用以上技术方案与现有技术相比,具有以下技术效果:
1、该软包电芯无模组电池单元结构取消了对软包电芯的全面防护,无模组上盖板,下底板等结构,仅保留限位固定结构,减小了现有无模组单元的体积,减少整个模组的重量,有助于后续系统能量排布;
2、传统软包电芯模组下底板需要模具来进行制作,软包电芯模组下底板取消后,减少一层软包模组的过保护设计,减少了导热膏部分,将原来导热膏分流至电池包系统上。缩短了模组单元的传热途径。增大了Z向的可利用空间;物料数量减少,成本、重量降低,同时也节省了数十万元的模具费。
附图说明
图1为本实施例的整体结构示意图。
图中,1、表示铝框;2、堆叠电芯;3、电芯限位块;4、单元绝缘块;5、柔性电路板。
具体实施方式
下面结合附图对本发明的技术方案做进一步的详细说明:
一种软包电芯无模组电池单元,包括长条形的铝框1,所述铝框1内均布有若干堆叠电芯2,堆叠电芯2上连接有柔性电路板5(FPC);相邻堆叠电芯2之间设置有电芯限位块3,所述电芯限位块3的中部设置有单元绝缘块4。
一种软包电芯无模组电池单元的加工工艺,包括如下步骤:
步骤1:铝挤出件形成合适的铝框1;
步骤2:将软包电芯,缓冲材料通过胶水黏连,堆叠成块,做成堆叠电芯2;
步骤3:通过机械手将堆叠电芯2塞入铝框1中;
步骤4:将电芯限位块3焊接在相邻的堆叠电芯2之间;
步骤5:在电芯限位块3中部安装单元绝缘块4;
步骤6:采用极耳激光的方式焊接;
步骤7:FPC激光焊接。
本技术领域技术人员可以理解的是,除非另外定义,这里使用的所有术语(包括技术术语和科学术语)具有与本发明所属领域中的普通技术人员的一般理解相同的意义。还应该理解的是,诸如通用字典中定义的那些术语应该被理解为具有与现有技术的上下文中的意义一致的意义,并且除非像这里一样定义,不会用理想化或过于正式的含义来解释。
以上实施例仅为说明本发明的技术思想,不能以此限定本发明的保护范围,凡是按照本发明提出的技术思想,在技术方案基础上所做的任何改动,均落入本发明保护范围之内。上面对本发明的实施方式作了详细说明,但是本发明并不限于上述实施方式,在本领域普通技术人员所具备的知识范围内,还可以再不脱离本发明宗旨的前提下做出各种变化。
Claims (2)
1.一种软包电芯无模组电池单元,其特征在于:包括长条形的铝框,所述铝框内均布有若干堆叠电芯,堆叠电芯上连接有柔性电路板;相邻堆叠电芯之间设置有电芯限位块,所述电芯限位块的中部设置有单元绝缘块。
2.一种如权利要求1所述的软包电芯无模组电池单元的加工工艺,其特征在于:包括如下步骤:
步骤1:铝挤出件形成合适的铝框;
步骤2:将软包电芯,缓冲材料通过胶水黏连,堆叠成块,做成堆叠电芯;
步骤3:通过机械手将堆叠电芯塞入铝框中;
步骤4:将电芯限位块焊接在相邻的堆叠电芯之间;
步骤5:在电芯限位块中部安装单元绝缘块;
步骤6:采用激光焊接工艺焊接按串并联需求,分别将电芯的极耳与汇流排进行焊接;
步骤7:柔性电路板采样触点与并联的电芯极耳接触,采用激光焊接工艺进行焊接。
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KR20110018799A (ko) * | 2009-08-18 | 2011-02-24 | 현대자동차일본기술연구소 | 일체형의 배터리 셀 모듈 및 그 제조방법 |
CN111477936A (zh) * | 2020-04-30 | 2020-07-31 | 昆山宝创新能源科技有限公司 | 软包电池和车辆 |
CN111599955A (zh) * | 2019-03-22 | 2020-08-28 | 骆驼集团新能源电池有限公司 | 一种无模组类铝壳电池模组及铝壳电池 |
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KR20110018799A (ko) * | 2009-08-18 | 2011-02-24 | 현대자동차일본기술연구소 | 일체형의 배터리 셀 모듈 및 그 제조방법 |
CN111599955A (zh) * | 2019-03-22 | 2020-08-28 | 骆驼集团新能源电池有限公司 | 一种无模组类铝壳电池模组及铝壳电池 |
CN111477936A (zh) * | 2020-04-30 | 2020-07-31 | 昆山宝创新能源科技有限公司 | 软包电池和车辆 |
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