CN109616599A - 72v动力锂电池 - Google Patents

72v动力锂电池 Download PDF

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CN109616599A
CN109616599A CN201811651853.6A CN201811651853A CN109616599A CN 109616599 A CN109616599 A CN 109616599A CN 201811651853 A CN201811651853 A CN 201811651853A CN 109616599 A CN109616599 A CN 109616599A
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battery
battery module
electric component
upper cover
module
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杨良军
余兵
周泽环
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Neolix Technologies Co Ltd
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Changzhou Vehicle Wing Power Technology Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
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    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • 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
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/597—Protection against reversal of polarity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/103—Fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/30—Preventing polarity reversal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
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    • Y02E60/10—Energy storage using batteries

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Abstract

本发明涉及一种72V动力锂电池，包括箱体、设置在箱体内的电池模块、与箱体连接的上盖、BMS管理系统以及设置在箱体内的电气组件；电池模块与上盖之间设置有压板，压板与电池模块之间设置有绝缘板；电池模块由多个单体模组通过N串M并的连接方式组成；电气组件包括继电器和保险丝，BMS管理系统和电气组件设置在电池模块的一侧。本发明能够满足72V低速电动汽车多种需求，依据客户的行驶里程需求提供不同规格的电芯容量，模块组装简单，能够有限降低员工的劳动强度，拆卸方便，散热性好，采用BMS的控制策略，支持Can2.0通讯实时检测电芯的工作状态及时反馈信息给整车，让电池系统可以更安全的使用，更好的延长了使用寿命。

Description

72V动力锂电池
技术领域
本发明涉及锂电池技术领域，尤其是一种72V动力锂电池。
背景技术
现有的72V低速电动汽车所使用的电池系统的电芯容量无法根据需求进行调整，不仅结构复杂，拆卸不方便，散热性能较差，并且没有保护控制策略，使用寿命短，安全性能差。
发明内容
本发明要解决的技术问题是：提出一种72V动力锂电池，以满足市场上72V低速车系统的需求。
本发明所采用的技术方案为：一种72V动力锂电池，包括箱体、设置在箱体内的电池模块、与箱体连接的上盖、BMS管理系统以及设置在箱体内的电气组件；所述的电池模块与上盖之间设置有压板，所述的压板与电池模块之间设置有绝缘板；所述的电池模块由多个单体模组通过N串M并的连接方式组成；所述的电气组件包括继电器和保险丝，BMS管理系统和电气组件设置在电池模块的一侧。
进一步的说，本发明所述的单体模组包括包括电芯，所述电芯的上部与上支架固定，电芯的下部与下支架固定；所述的上支架和下支架表面分别设置有镍片；所述镍片表面设置有铝片；多个单体模组通过拉杆对齐并通过铝排串联，串联后的单体模组上设置有散热片。
再进一步的说，本发明所述的箱体的侧面设置有固定框架，所述的上盖通过螺栓连接固定框架。
再进一步的说，本发明所述的散热片为铝片。
本发明的有益效果是：能够满足72V低速电动汽车多种需求，依据客户的行驶里程需求提供不同规格的电芯容量，模块组装简单，能够有限降低员工的劳动强度，不仅拆卸方便，散热性好，而且采用保护板的控制策略，支持Can2.0通讯实时检测电芯的工作状态及时反馈信息给整车，让电池系统可以更安全的使用，更好的延长了使用寿命。
附图说明
图1是本发明的结构爆炸示意图；
图2是本发明模组的结构示意图；
图中：1、上盖；2、压板；3、固定框架；4、环氧板；5、并联铝排，6、采集线；7、5A保险丝；8、继电器；9、预充电阻；10、BMS管理系统；11、单体模组；12、电芯；13、上支架；14、下支架；15、镍片；16、铝排；17、拉杆；18、散热片；19、箱体。
具体实施方式
现在结合附图和优选实施例对本发明作进一步详细的说明。这些附图均为简化的示意图，仅以示意方式说明本发明的基本结构，因此其仅显示与本发明有关的构成。
如图1、2所示的一种72V动力锂电池，包括箱体、设置在箱体内的电池模块、与箱体连接的上盖、BMS管理系统以及设置在箱体内的高压电气组件PDU；箱体的侧面设置有固定框架，所述的上盖通过螺栓连接固定框架。电池模块与上盖之间设置有压板，所述的压板与电池模块之间设置有绝缘板；所述的电池模块由多个单体模组通过N串M并的连接方式组成；所述的电气组件包括继电器和保险丝，BMS管理系统和电气组件设置在电池模块的一侧。
单体模组包括电芯，所述电芯的上部与上支架固定，电芯的下部与下支架固定；所述的上支架和下支架表面分别设置有镍片；所述镍片表面设置有铝片；多个单体模组通过拉杆对齐并通过铝排串联，串联后的单体模组上设置有散热铝片。
电池模块可以依据客户实际需求调整参数，BMS管理系统对电池电压、电流数据实时采集，控制电池的过充、过放让系统更安全。PDU里包含继电器、保险丝，系统使用中如果放电电流过大时保险丝会断开保护电路，避免使用过程因使用不当造成的短路保护电路。
该锂电池系统集成操作步骤包括：
1、投料：将来料的电芯(依据作业标准)，投入自动线体上，设备会依据作业标准对电芯进行分选。
2、入壳：机器手会将分选好的电芯放入塑胶下支架中，然后盖上上支架；
3、电阻焊接：自动线会将放置好铝镍复合片的模组放在焊接平台上，焊接机器依据设定的参数进行依次焊接，同时自检焊接的效果；
4、激光焊接：将装好铝排的模块放置在激光焊接平台上，激光焊接设备会依据参数进行焊接，同时自检焊接的效果；
5、模组串联：将焊接好的模组依次组装起来，穿拉杆螺丝锁紧，放置电池绝缘板；
6、入箱：将四个组装好的模块依次放入电池箱体内，放置压板固定四个模组；
7、系统组装：用铜排将模块串联起来，盖上上盖。
PDU依据电气原理图装配，注意检验来料元器件的导通；连接器防水透气阀依据设计图纸组装在箱体上，注意短路和绝缘。
基础单元为28P2S、56P1S、标准模块，依据客户需求，系统可以设计72V70Ah、72V140Ah。
2种标准模块Pack工序：依据配组工艺完成配组后，抓取一定数量的电芯入壳，组装塑胶支架、安放铝镍复合片、安放Burbar极片，电阻焊接、激光焊接、安放模块压板。
2种标准模块组装简单，能够有限降低员工的劳动强度；电阻焊接、激光焊程序简单，两个模块很容易做到兼容，同时，焊缝虚焊率低；模块组成件简单，开模数量少，且模具简单，有效降低开模费用；适用性强，最后，模块电芯数量少，能够直接减少模块返工费用。
基于现有模块的设计，电芯的容量调整可以变更模组的容量，更容易满足不同的客户需求，模块独立成组有利于模组焊接实现自动化，降低人工的操作的工序提升产品的良率。
以上说明书中描述的只是本发明的具体实施方式，各种举例说明不对本发明的实质内容构成限制，所属技术领域的普通技术人员在阅读了说明书后可以对以前所述的具体实施方式做修改或变形，而不背离本发明的实质和范围。

Claims (4)

1.一种72V动力锂电池，其特征在于：包括箱体、设置在箱体内的电池模块、与箱体连接的上盖、BMS管理系统以及设置在箱体内的电气组件；所述的电池模块与上盖之间设置有压板，所述的压板与电池模块之间设置有绝缘板；所述的电池模块由多个单体模组通过N串M并的连接方式组成；所述的电气组件包括继电器和保险丝，BMS管理系统和电气组件设置在电池模块的一侧。
2.如权利要求1所述的72V动力锂电池，其特征在于：所述的单体模组包括电芯，所述电芯的上部与上支架固定，电芯的下部与下支架固定；所述的上支架和下支架表面分别设置有镍片；所述镍片表面设置有铝片；多个单体模组通过拉杆对齐并通过铝排串联，串联后的单体模组上设置有散热片。
3.如权利要求1所述的72V动力锂电池，其特征在于：所述的箱体的侧面设置有固定框架，所述的上盖通过螺栓连接固定框架。
4.如权利要求2所述的72V动力锂电池，其特征在于：所述的散热片为铝片。
CN201811651853.6A 2018-12-31 2018-12-31 72v动力锂电池 Pending CN109616599A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110137404A (zh) * 2019-05-23 2019-08-16 成都特隆美储能技术有限公司 一种新型的电池模组
CN111463393A (zh) * 2020-04-03 2020-07-28 安徽星玛新能源有限公司 一种电池包pack方法
CN111725470A (zh) * 2020-06-10 2020-09-29 华富(江苏)锂电新技术有限公司 用于电动轮椅的串联组装式软包锂电池系统

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CN204361144U (zh) * 2014-12-16 2015-05-27 天津神鹿能源有限公司 一种带有温控装置的锂电池电池箱
CN109037571A (zh) * 2018-09-19 2018-12-18 福建易动力电子科技股份有限公司 一种通过压合进行过电流的电池模组
CN209312848U (zh) * 2018-12-31 2019-08-27 常州车之翼动力科技有限公司 一种72v动力锂电池

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2793297A1 (de) * 2013-02-14 2014-10-22 Robert Bosch Gmbh Batterie und Kraftfahrzeug
CN204263952U (zh) * 2014-11-28 2015-04-15 惠州市亿能电子有限公司 一种动车组辅助电源
CN204361144U (zh) * 2014-12-16 2015-05-27 天津神鹿能源有限公司 一种带有温控装置的锂电池电池箱
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110137404A (zh) * 2019-05-23 2019-08-16 成都特隆美储能技术有限公司 一种新型的电池模组
CN111463393A (zh) * 2020-04-03 2020-07-28 安徽星玛新能源有限公司 一种电池包pack方法
CN111725470A (zh) * 2020-06-10 2020-09-29 华富(江苏)锂电新技术有限公司 用于电动轮椅的串联组装式软包锂电池系统
CN111725470B (zh) * 2020-06-10 2023-01-13 华富(江苏)锂电新技术有限公司 用于电动轮椅的串联组装式软包锂电池系统

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