CN205828469U - 圆柱形电池模块 - Google Patents

圆柱形电池模块 Download PDF

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CN205828469U
CN205828469U CN201620689163.XU CN201620689163U CN205828469U CN 205828469 U CN205828469 U CN 205828469U CN 201620689163 U CN201620689163 U CN 201620689163U CN 205828469 U CN205828469 U CN 205828469U
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陈斌
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Shanghai Xingli New Energy Technology Co Ltd
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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
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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
    • H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
    • 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
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

本实用新型涉及圆柱形电池模块以及制造方法，正极的固定支架、负极的固定支架的内部均嵌有单层金属制成的汇流排，正极的固定支架、负极的固定支架上分别设有电池的安装孔，电池安装在安装孔内并且电池的正、负极分别和单层金属制成的汇流排相连接。本实用新型简化了生产工艺、减少了质量控制点；集成了汇流排的固定支架减少了圆柱形电池的零件种类和数量，提高了零件的管理效率。

Description

圆柱形电池模块
技术领域
本实用新型涉及一种圆柱形电池模块，具体地说是一种简化结构、通用性较高的圆柱形电池模块。
背景技术
现有的圆柱形电池模块除电池外主要由两个电池固定支架和两个汇流排组成。两个汇流排分别由两种不同金属制成，当电池固定在电池固定支架上后，电池会通过预先涂覆在电池安装孔内的胶水与电池固定支架粘接在一起，然后分别将汇流排安装在电池支架上，最后采用焊接（电阻焊、激光或者超声波）的方式将所有电池的正、负极焊接在汇流排上面。但是不管哪种焊接方式对于焊接区域的汇流排的厚度都有材料厚度要求（通常在0.3mm左右），否则会存在与电池正、负极焊接不良或者焊接过度的情况，会存在较大的安全隐患。
现有的汇流排设计有两种：一种是正极和负极汇流排均采用薄壁（通常在0.3mm左右）的镍片，这种设计的汇流排一般采用电阻焊接，或者正极激光焊接负极电阻焊接。这种汇流排的设计由于焊接部分的厚度非常薄，所以汇流排的载流能力有限，同时发热也会高于常用的导线材料（铜和铝），所以通常在系统功率很低的电池模块上使用.
为了解决第一种设计载流能力和发热的问题，通常会将正极和负极的汇流排分别设计成双层结构，与电池接触的那层采用薄镍片，然后将薄镍片与一块厚度满足载流需求的铜板（通常在1mm左右）焊接在一起，这样一个电池模块实际上需要除电池外有六个零件组成。而且在将汇流排安装到电池固定支架上之前，必须增加一个将铜板和镍片复合到一起的工序过程。另外现有的汇流排的设计不仅在工艺上较为繁琐，在成本和重量上也没有优势，最为显著的缺陷为电阻焊、激光焊很难十分准确的在线无损的检测焊点的可靠性。由于现有的汇流排的设计是一个整体的零件，一旦损坏一个焊点，整个模块的电池、汇流排还有电池支架都将无法继续使用。
上述现有设计的圆柱形模块的主要生产工艺为：
1.将电池固定在电池固定支架上；
2.安装正极汇流排；
3.安装负极汇流排；
4.焊接正极汇流排；
5.焊接负极汇流排。
如果汇流排采用双层结构的话还需增加汇流排复合的工序。通过上述工艺可以看出，现有的结构设计使得模块的生产工艺比较繁琐，涉及的工艺和设备多，从而导致质量控制点较多，报废损耗大等缺陷。
实用新型内容
本实用新型为解决现有的问题，旨在提供一种圆柱形电池模块。
本实用新型采用的技术方案包括电池、正极的固定支架、汇流排和负极的固定支架,所述正极的固定支架、负极的固定支架的内部均嵌有单层金属制成的汇流排，所述正极的固定支架、负极的固定支架上分别设有电池的安装孔，电池安装在安装孔内并且电池的正、负极分别和所述单层金属制成的汇流排相连接；所述汇流排和电池的正极之间设有键合的导线。
其中，所述电池和固定支架的安装孔之间设有防止电池转动的软体垫层。
和现有技术相比，本实用新型将正、负极的汇流排更改成了同一种材料，使用一种工艺和设备即可完成所有的正负极到汇流排的制造，简化了生产工艺、减少了质量控制点；本实用新型提供的集成了汇流排的固定支架减少了圆柱形电池的零件种类和数量，提高了零件的管理效率。
附图说明
图1为本实用新型一个实施例的结构示意图；
图2为本实用新型的一个实施例的结构示意图；
图3为本实用新型的一个实施例的立体图。
具体实施方式
现结合附图对本实用新型作进一步地说明。
参见图1，图1展示的是本实用新型的一个实施例，是一种圆柱形电池模块，包括电池6、正极的固定支架1、汇流排4和负极的固定支架2,所述正极的固定支架1、负极的固定支架2的内部均嵌有单层金属制成的汇流排4，所述正极的固定支架1、负极的固定支架2上分别设有电池6的安装孔，电池6安装在安装孔内并且电池6的正、负极分别和所述单层金属制成的汇流排4相连接；所述汇流排4和电池6的正极之间设有键合的导线7。
本实施例中作为优选，所述汇流排4优选单层的1系或者6系铝合金片结构（所述汇流排4的材料也可以采用铜、铝或者合适的铜合金材料）；汇流排4可以是单层结构，也可以是多层结构。现有技术中，薄镍片的载流能力差、导热差；镍片铜片复合层的结构在焊接到电池之前会增加镍片、铜片之间的焊接工工序；此外在焊接后的可维修性方面，以上两种方式的汇流排4均采用电阻焊或者激光焊接，不具备可维修性。在生产过程中一旦出现焊接问题单个模块基本报废，无法维修且无法使用。
作为优选，其中，所述电池和固定支架的安装孔之间设有软体垫层，可以有效防止电池转动。
上述圆柱形电池模块仅包括：电池6、正极的固定支架1、汇流排4和负极的固定支架2以及导线7。其中正极的固定支架1、负极的固定支架2为同样的结构，而汇流排4采用了单层的结构，因此整个圆柱形电池模块不同的零件数量为四件，相较于现有技术极大减少了零件种类和数量，对于批量生产、推广使用均大有裨益；并且降低了成本，提高了零件的管理效率。
为了制造上述圆柱形电池模块，本实施例运用了一种上述圆柱形电池模块的制造方法，包括如下步骤：
步骤一，加工单层金属制成的汇流排4至所需要的形状；采用冲压工艺，将金属铝板放进模具，经过冲压后出来即为成品。
步骤二，将得到的汇流排4作为电池固定支架的嵌件放入固定支架的注塑模具中，即先将需要嵌入到塑料中的产品放在模腔中，然后注入加热后的塑料；在塑料冷却后将嵌件包裹。这样将所述汇流排、固定支架整体注塑成型，便得到可以正极、负极通用的一体式的固定支架；
步骤三，取两件一体式的固定支架，将电池放入正极的固定支架1（或者负极的固定支架2，两者结构相同）的安装孔内，并将固定支架用螺栓5固定；
步骤四，将电池的正、负极分别焊接到正、负极的汇流排上。所述焊接的设备为键合机，通过金属的导线7将晶圆焊接到芯片引脚。
本实施例的方法中，正、负极的汇流排采用了同一种材料，使得正极的固定支架1、负极的固定支架2采用同一种方法和配套设备即可完成所有的制造，简化了生产工艺、减少了质量控制点。
上面结合附图及实施例描述了本实用新型的实施方式，实施例给出的结构并不构成对本实用新型的限制，本领域内熟练的技术人员可依据需要做出调整，在所附权利要求的范围内做出各种变形或修改均在保护范围内。

Claims (2)

1.一种圆柱形电池模块，包括电池、正极的固定支架、汇流排和负极的固定支架,其特征在于：所述正极的固定支架、负极的固定支架的内部均嵌有单层金属制成的汇流排，所述正极的固定支架、负极的固定支架上分别设有电池的安装孔，电池安装在安装孔内并且电池的正、负极分别和所述单层金属制成的汇流排相连接；所述汇流排和电池的正极之间设有键合的导线。
2.根据权利要求1所述的一种圆柱形电池模块，其特征在于：所述电池和固定支架的安装孔之间设有防止电池转动的软体垫层。
CN201620689163.XU 2016-07-01 2016-07-01 圆柱形电池模块 Expired - Fee Related CN205828469U (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP3293784A1 (en) * 2016-09-07 2018-03-14 Thunder Power New Energy Vehicle Development Company Limited Battery pack with busbar fixation
WO2022214259A1 (de) * 2021-04-07 2022-10-13 Bayerische Motoren Werke Aktiengesellschaft Elektrischer energiespeicher mit lateralem zellkontaktiersystem sowie kraftfahrzeug

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP3293784A1 (en) * 2016-09-07 2018-03-14 Thunder Power New Energy Vehicle Development Company Limited Battery pack with busbar fixation
US10164225B2 (en) 2016-09-07 2018-12-25 Thunder Power New Energy Vehicle Development Company Limited Battery system housing with busbar grid fixation
WO2022214259A1 (de) * 2021-04-07 2022-10-13 Bayerische Motoren Werke Aktiengesellschaft Elektrischer energiespeicher mit lateralem zellkontaktiersystem sowie kraftfahrzeug

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