CN111063855A - 一种圆柱形电芯单边焊接的方法 - Google Patents
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- 238000003466 welding Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
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- H—ELECTRICITY
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
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Abstract
本发明提供的一种圆柱形电芯单边焊接的方法,包括多个电芯、汇流排、上支架、下支架、铝丝、电芯正极、电芯负极和电芯边缘,先将所述多个电芯整齐排布于所述上、下支架之间形成电池模组,再将所述电芯正极与所述上支架固定连接,所述电芯负极与所述下支架固定连接。所述汇流排固定在所述上支架上,所述电芯正极与所述汇流排通过所述铝丝焊接连接。本发明通过上述电芯排布方式,只在正极一面装配所述汇流排,将所述汇流排分别与所述电芯正极、所述电芯边缘通过所述铝丝焊接,从而将电芯串并联连接,能够减少汇流排和铝丝等材料的使用,还能减少焊接工作量,能进一步提高电池组的散热效果。
Description
技术领域
本发明涉及新能源动力电池***焊接方法,特别地说是一种圆柱形电芯单边焊接的方法。
背景技术
随着PACK工艺的不断发展,连接方式不断改进,从传统的导线锡焊工艺、镍片锡焊工艺、镍片点焊工艺、到激光焊接工艺和超声铝丝焊接工艺。传统焊接工艺十分耗时、容易失败,也很难测试电池之间的连接、导体是否存在问题。相比之下激光焊及超声焊拥有多个“碾压性”优势:一是采用铝丝可实现重复焊接,大大提高可维修性和回收率;二是铝丝可以适应汽车对连接处的应力要求和拉力测试要求,甚至可以充当‘保险丝’,在短路时自动熔断保障电路安全。但是目前电池模组排布方式是正负极交错排布,即一部分正极朝上一部分负极朝上,然后将电池组上部和下部分别装配汇流排,利用铝丝超声焊接工艺进行串并联连接,这种电池排布方式需要电池组上下两面均装配汇流排,且两面都要进行焊接,不仅增加了汇流排和铝丝等材料的使用,还耗费了焊接工作量,并且影响了电池组的散热。
发明内容
为了解决上述问题,本发明提供一种圆柱形电芯单边焊接的方法,能够减少汇流排和铝丝等材料的使用,还能减少焊接工作量,能进一步提高电池组的散热效果。
本发明公开的一种圆柱形电芯单边焊接的方法,包括多个电芯、汇流排、上支架、下支架、铝丝、电芯正极、电芯负极和电芯边缘,先将所述多个电芯整齐排布于所述上、下支架之间形成电池模组,所述汇流排固定在所述上支架上,再将所述电芯正极与所述汇流排通过所述铝丝焊接连接,所述电芯边缘与所述汇流排通过所述铝丝焊接连接。
进一步的,所述多个电芯正极与所述上支架固定连接,所述多个电芯负极与所述下支架固定连接。
有益效果:
本发明提供的一种圆柱形电芯单边焊接的方法,通过上述电芯排布方式,只在正极一面装配所述汇流排,将所述汇流排分别与所述电芯正极、所述电芯边缘通过所述铝丝焊接,从而将电芯串并联连接,能够减少汇流排和铝丝等材料的使用,还能减少焊接工作量,能进一步提高电池组的散热效果。
附图说明
图1为本发明的一种圆柱形电芯单边焊接的方法示意图
图2为本发明的一种圆柱形电芯单边焊接的方法的焊接效果细节示意图
图中各标记的含义为:1—汇流排,2—上支架,3—铝丝,4—电芯正极,5—电芯边缘。
具体实施方式
为了使本发明的技术方案及有益效果更易于理解,将结合附图作进一步详细说明,此处具体实施方式仅仅用于解释本发明并不用于限定本发明。
本发明公开的一种圆柱形电芯单边焊接的方法,包括多个电芯、汇流排(1)、上支架(2)、下支架、铝丝(3)、电芯正极(4)、电芯负极和电芯边缘(5),先将所述多个电芯整齐排布于所述上支架(2)、下支架之间形成电池模组,所述汇流排(1)固定在所述上支架(2)上,再将所述电芯正极(4)与所述汇流排(1)通过所述铝丝(3)焊接连接,所述电芯边缘(5)与所述汇流排(1)通过所述铝丝(3)焊接连接。
进一步的,电芯正极(4)与上支架(2)固定连接,所述电芯负极与所述下支架固定连接。
优选的,本实施例中所述电芯为18650圆柱电芯;
优选的,本实施例中所述汇流排(1)与所述上支架(2)通过AB胶粘结固定;
优选的,本实施例中焊接工艺为超声铝丝焊接工艺。
以上所述仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所做的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (1)
1.本发明公开的一种圆柱形电芯单边焊接的方法,包括多个电芯、汇流排、上支架、下支架、铝丝、电芯正极、电芯负极和电芯边缘,先将所述多个电芯整齐排布于所述上、下支架之间形成电池模组,其特征在于,所述电芯正极与所述上支架固定连接,所述电芯负极与所述下支架固定连接,所述汇流排固定在所述上支架上,再将所述电芯正极与所述汇流排通过所述铝丝焊接连接、所述电芯边缘与所述汇流排通过所述铝丝焊接连接。
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CN204651380U (zh) * | 2015-06-05 | 2015-09-16 | 北京科易动力科技有限公司 | 电芯连接结构 |
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CN205723727U (zh) * | 2016-04-28 | 2016-11-23 | 周伟 | 动力电池组 |
CN206179963U (zh) * | 2016-10-31 | 2017-05-17 | 深圳市沃特玛电池有限公司 | 一种电池组件 |
CN107464909A (zh) * | 2016-08-02 | 2017-12-12 | 伍伟东 | 电池模组的焊接方法 |
CN206742369U (zh) * | 2017-03-23 | 2017-12-12 | 惠州亿纬锂能股份有限公司 | 一种电池及电池组件 |
CN206976514U (zh) * | 2017-05-16 | 2018-02-06 | 深圳市沃特玛电池有限公司 | 一种电池包结构 |
CN207368063U (zh) * | 2017-07-05 | 2018-05-15 | 深圳市赢合科技股份有限公司 | 圆柱电池铝丝超声焊接电池组 |
KR20180080541A (ko) * | 2017-01-04 | 2018-07-12 | 삼성에스디아이 주식회사 | 배터리 팩 |
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- 2018-10-17 CN CN201811208784.1A patent/CN111063855A/zh active Pending
- 2018-10-17 CN CN202311521584.2A patent/CN117525761A/zh active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN204651380U (zh) * | 2015-06-05 | 2015-09-16 | 北京科易动力科技有限公司 | 电芯连接结构 |
CN205141063U (zh) * | 2015-11-24 | 2016-04-06 | 北京闪信鼎中技术有限公司 | 一种电池模组 |
CN205723727U (zh) * | 2016-04-28 | 2016-11-23 | 周伟 | 动力电池组 |
CN105914319A (zh) * | 2016-07-01 | 2016-08-31 | 上海星历新能源科技有限公司 | 圆柱形电池模块以及制造方法 |
CN107464909A (zh) * | 2016-08-02 | 2017-12-12 | 伍伟东 | 电池模组的焊接方法 |
CN206179963U (zh) * | 2016-10-31 | 2017-05-17 | 深圳市沃特玛电池有限公司 | 一种电池组件 |
KR20180080541A (ko) * | 2017-01-04 | 2018-07-12 | 삼성에스디아이 주식회사 | 배터리 팩 |
CN206742369U (zh) * | 2017-03-23 | 2017-12-12 | 惠州亿纬锂能股份有限公司 | 一种电池及电池组件 |
CN206976514U (zh) * | 2017-05-16 | 2018-02-06 | 深圳市沃特玛电池有限公司 | 一种电池包结构 |
CN207368063U (zh) * | 2017-07-05 | 2018-05-15 | 深圳市赢合科技股份有限公司 | 圆柱电池铝丝超声焊接电池组 |
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