WO2019148821A1 - 一种动力电池壳体 - Google Patents

一种动力电池壳体 Download PDF

Info

Publication number
WO2019148821A1
WO2019148821A1 PCT/CN2018/102602 CN2018102602W WO2019148821A1 WO 2019148821 A1 WO2019148821 A1 WO 2019148821A1 CN 2018102602 W CN2018102602 W CN 2018102602W WO 2019148821 A1 WO2019148821 A1 WO 2019148821A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy output
battery
electric energy
negative electrode
positive electrode
Prior art date
Application number
PCT/CN2018/102602
Other languages
English (en)
French (fr)
Inventor
李中亮
黄丛林
刘立如
Original Assignee
深圳市华源达科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市华源达科技有限公司 filed Critical 深圳市华源达科技有限公司
Publication of WO2019148821A1 publication Critical patent/WO2019148821A1/zh

Links

Classifications

    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/581—Devices or arrangements for the interruption of current in response to temperature
    • 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
    • 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
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • 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
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • 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
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
    • 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
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • 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
    • 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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • 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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/227—Organic material
    • 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

Definitions

  • the present application relates to a battery case, and more particularly to a power battery case capable of disconnecting a battery from the outside when the internal temperature of the battery is too high.
  • the powertrain of a new energy electric vehicle composed of hundreds of power batteries is a key component assembly of a new energy electric vehicle, a core part of the entire automobile, and a power source of the entire automobile, and its cost is occupied. About half of the whole car.
  • the powertrain which mainly concentrates on electrical energy, stores several kilowatts of electrical energy in the assembly. Therefore, the safety of the whole vehicle is mainly the safety of the powertrain.
  • the object of the present application is to provide a power battery case which is simple in structure, in particular, when the internal temperature of the battery is too high, the battery can be disconnected from the outside in time.
  • a power battery housing includes a housing body; the housing body is electrically connected to a battery positive pole ⁇ 0 2019/148821 ⁇ (:17(: ⁇ 2018/102602 power output positive pole, and the electric energy output negative pole electrically connected to the negative pole of the battery; the electric energy output positive pole is electrically connected to the positive pole of the battery through the electric energy export fuse, and / Or the electrical energy output negative electrode is electrically connected to the battery negative electrode through the electric energy exporting fuse; a thermistor is connected between the electric energy output positive electrode and the electric energy output negative electrode.
  • the above power battery casing has a simple structure, in particular, an electric energy exporting fuse, a thermistor and a battery are connected in series; when the battery is working normally, the temperature of the battery is not high, and the thermistor is turned off at this time, showing Insulation state; When the battery is overcharged or other unexpected conditions (such as collision), causing short circuit or burning, etc., causing the battery to appear high temperature, the thermistor will be turned on immediately, the positive output of the power output and the negative pole of the power output through the thermistor Through, a large current is passed, and the electric energy output fuses connected in series are instantaneously blown, thereby cutting off the electric energy and outputting outward, forming an external protection, which greatly reduces the occurrence of fire and explosion.
  • the housing body is a metal housing; in actual use, the power battery is used together, and the housing of the power battery cannot be charged with a negative charge, so when the thermistor is one, the two ends are respectively connected to the battery.
  • the housing body is a metal housing; in actual use, the power battery is used together, and the housing of the power battery cannot be charged with a negative charge, but can be charged with a positive charge, thereby increasing the potential, so when the heat is applied
  • the resistance is two, one of the two ends is connected to the battery positive electrode and the outer casing body, and the other two ends are respectively connected to the battery negative electrode and the outer casing body.
  • the housing body is a plastic housing; the two ends of the thermistor are respectively connected to the electric energy output positive pole and the electric energy output negative pole through wires.
  • the housing body includes a shell body and a shell cover that covers the shell body; and the electric energy output cathode and the electric energy output cathode are disposed on the shell cover.
  • the cover is provided with a vent hole; and the vent hole is provided with a rupture disk.
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present application.
  • Embodiment 1 of the present application is a circuit schematic diagram of Embodiment 1 of the present application.
  • a power battery casing includes a casing body 10 made of metal.
  • the casing body 10 is provided with an electric energy output positive electrode 20 connected thereto and electrically connected to the positive electrode of the battery.
  • an electric energy output negative electrode 30 electrically connected to the negative electrode of the battery;
  • the electric energy output positive electrode 20 is electrically connected to the positive electrode of the battery through the electric energy exporting fuse II 1;
  • a thermistor 112 is connected between the electric energy output positive electrode 20 and the electric energy output negative electrode 30; Both ends of the thermistor 112 are connected to the battery negative electrode and the casing body 10, respectively.
  • the casing body 10 includes a casing body 11 and a casing cover 12 that is covered on the casing body 11; the electric energy output positive electrode 20 and the electric energy output negative electrode 30 are disposed on the casing cover 12.
  • the cover 12 is provided with a vent hole; and the vent hole is provided with a rupture disk 40.
  • the above-mentioned power battery casing has a simple structure, in particular, the electric energy export fuse 1 ⁇ 1, the thermistor 112 and the battery are connected in series; when the battery is working normally, the temperature of the battery is not Very high, the thermistor 1 ⁇ 2 is turned off at this time, showing the insulation state; when the battery is overcharged or other unexpected conditions (such as collision), causing short circuit or burning, etc., causing the battery to appear high temperature, thermistor 1 ⁇ 2 At this time, it will be turned on immediately, and the electric energy output positive electrode 20 and the electric energy output negative electrode 30 are turned on through the thermistor scale 2 to form a large current, and the electric energy output fuses connected in series are instantaneously blown, thereby cutting off the electric energy and outputting outward, forming a
  • the protection of the outside greatly reduces the occurrence of fire and explosion.
  • the power battery case in this embodiment is basically the same as the structure of the power battery case in Embodiment 1. The only difference is that there is a thermal connection between the power output positive electrode 20 and the power output negative electrode 30 in series.
  • the resistor 2 is connected to the battery positive electrode and the casing body 10 at both ends of the thermistor 1 ⁇ 2. Since the added thermistor 112 is coupled to the casing body 10, the casing body 10 is positively charged.
  • the power battery case in this embodiment is basically the same as the structure of the power battery case in Embodiment 2. The only difference is that an electric energy output fuse R1 is further connected in series between the power output negative electrode 30 and the battery negative electrode. An electric energy export fuse R1 is set, and when the battery E temperature is too high, the probability that the electric energy export fuse R1 is broken unexpectedly decreases.
  • the power battery case in this embodiment is basically the same as the structure of the power battery case in Embodiment 1, the only difference is that the case body 10 is made of plastic, and both ends of the thermistor R2 pass.
  • the wires are respectively connected to the power output positive electrode 20 and the power output negative electrode 30.
  • the outer casing of the power battery is not entirely made of metal, but also made of plastic. When the outer casing body 10 made of plastic is used, at this time, a corresponding mounting groove is provided in the outer casing body 10 to facilitate the placement of the wires.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)

Abstract

本申请涉及一种电池壳体，尤其涉及一种动力电池壳体，包括外壳本体；所述外壳本体设有与电池正极电性连接的电能输出正极，以及与电池负极电性连接的电能输出负极；所述电能输出正极通过电能导出保险丝与电池正极电性连接，和/或所述电能输出负极通过电能导出保险丝与电池负极电性连接；所述电能输出正极和电能输出负极之间连接有热敏电阻。本结构的动力电池壳体，结构简单，尤其是当电池温度过高时，热敏电阻此时就会立即开启，电能输出正极和电能输出负极通过热敏电阻导通，形成大电流通过，串联在内的电能导出保险丝瞬间熔断，从而截断电能向外输出，形成一种对外部的保护，大大减少了起火、爆炸的情况发生。

Description

\¥0 2019/148821 卩（：17 謂18/102602
一种动力电池壳体
[0001] 本申请是以申请号为 201810094003.4、 申请日为 2018年 1月 31日的中国专利申请 为基础， 并主张其优先权， 该申请的全部内容在此作为整体引入本申请中。
[0002] 技术领域
[0003] 本申请涉及一种电池壳体， 尤其涉及一种在电池内部温度过高时， 能够及时断 开电池与外界连接的动力电池壳体。
[0004] 背景技术
[0005] 由数百个动力电池组成的新能源电动汽车的动力总成， 是新能源电动汽车的关 键零部件总成， 是整个汽车的核心部份， 也是整个汽车的动力来源， 其成本占 到整车的一半左右。 该动力总成， 主要集中的是电能， 是将数千瓦的电能储存 在总成内。 因此， 整车的安全问题， 主要就是动力总成的安全问题。
[0006] 近年来， 在新能源电动汽车出现的安全事故中， 动力总成的安全问题一直是人 们关注的焦点。 有的电动汽车在充电过程中， 整车出现自燃， 其原因可能是汽 车电路引起， 也可能是电池在充电过程中， 发热太高， 引起自燃。 另外， 新能 源电动汽车在运行过程中， 如果出现碰撞的情形， 较容易出现线路短路或动力 总成内部短路起火， 使得动力总成燃烧乃致爆炸， 最后整车都可能报废。
[0007] 现在业内普遍采用 5~6 0的气压式熔断
Figure imgf000003_0001
（保险丝） 提前。 当动力电池内 产生大电流通过时造成温度升高， 接着产生气体， 动力电池内部气压升到 5：^0以 上时， 触发翻转片， 引起更大的电流通过
Figure imgf000003_0002
当？1¾£熔断时， 此时动力电池 的内部气压已经很高了， 并且内部的化合物有可能仍在继续进行化合反应， 直 到动力电池的内部气压达到 7 9X0时， 防爆片才打开排气， 此时风险很大。
[0008] 申请内容
[0009] 为了弥补上述现有技术的缺陷， 本申请的目的是提供一种结构简单， 尤其是在 电池内部温度过高时， 能够及时断开电池与外界连接的动力电池壳体。
[0010] 为达到上述目的， 本申请的技术方案是：
[0011] 一种动力电池壳体， 包括外壳本体； 所述外壳本体设有与电池正极电性连接的 \¥0 2019/148821 卩（：17（：\2018/102602 电能输出正极， 以及与电池负极电性连接的电能输出负极； 所述电能输出正极 通过电能导出保险丝与电池正极电性连接， 和/或所述电能输出负极通过电能导 出保险丝与电池负极电性连接； 所述电能输出正极和电能输出负极之间连接有 热敏电阻。
[0012] 上述的动力电池壳体， 结构简单， 尤其是电能导出保险丝、 热敏电阻和电池串 联连接； 当电池正常工作时， 电池的温度不会很高， 热敏电阻此时关闭， 表现 出绝缘状态； 当电池过充或出现其他意外情况 （如碰撞） ， 引起短路或燃烧等 ， 导致电池出现高温， 热敏电阻此时就会立即开启， 电能输出正极和电能输出 负极通过热敏电阻导通， 形成大电流通过， 串联在内的电能导出保险丝瞬间熔 断， 从而截断电能向外输出， 形成一种对外部的保护， 大大减少了起火、 爆炸 的情况发生。
[0013] 进一步的， 为了提高电池壳体的强度； 当电池温度过高， 热敏电阻导通时， 还 为了能够简单方便地实现电能输出正极和电能输出负极通过热敏电阻导通， 所 述外壳本体为金属壳体； 在实际使用过程中， 动力电池都是多个一起使用， 动 力电池的外壳本体不能带上负电荷， 因此当所述热敏电阻为一个时， 其两端分 别连接电池负极和外壳本体； 所述电能输出正极连接所述外壳本体。
[0014] 进一步的， 为了提高电池壳体的强度； 当电池温度过高， 热敏电阻导通时， 还 为了能够简单方便地实现电能输出正极和电能输出负极通过热敏电阻导通， 所 述外壳本体为金属壳体； 在实际使用过程中， 动力电池都是多个一起使用， 动 力电池的外壳本体不能带上负电荷， 但是可以带上正电荷， 从而增加电势， 因 此当所述热敏电阻为两个时， 其中一个两端分别连接电池正极和外壳本体， 另 一个两端分别连接电池负极和外壳本体。
[0015] 进一步的， 所述外壳本体为塑料壳体； 所述热敏电阻的两端通过导线分别与电 能输出正极和电能输出负极连接。
[0016] 进一步的， 为了便于加工及组装， 所述外壳本体包括壳身， 以及盖合在壳身的 壳盖； 所述电能输出正极和电能输出负极设于壳盖。
[0017] 进一步的， 当电池内部产生过量气体， 内部气压过大时， 为了防止其爆炸， 所 述壳盖设有排气孔； 所述的排气孔处设有防爆片。 \¥0 2019/148821 卩（：17（：\2018/102602
[0018] 下面结合附图和具体实施例对本申请作进一步描述。
[0019] 附图说明
[0020] 图 1为本申请实施例 1的结构示意图；
[0021] 图 2为本申请实施例 1的电路原理图。
[0022] 具体实施方式
[0023] 为了更充分理解本申请的技术内容， 下面结合具体实施例对本申请的技术方案 进一步介绍和说明， 但不局限于此。
[0024] 实施例 1
[0025] 如图 1和图 2所示， 一种动力电池壳体， 包括由金属制成的外壳本体 10; 夕卜壳本 体 10设有与其连接且与电池正极电性连接的电能输出正极 20， 以及与电池负极 电性连接的电能输出负极 30 ; 电能输出正极 20通过电能导出保险丝 II 1与电池正 极电性连接； 电能输出正极 20和电能输出负极 30之间连接有一个热敏电阻 112 ; 热敏电阻112的两端分别连接电池负极和外壳本体 10。
[0026] 具体的， 外壳本体 10包括壳身 11， 以及盖合在壳身 11的壳盖 12; 电能输出正极 20和电能输出负极 30设于壳盖 12。
[0027] 进一步的， 在其他实施例中， 壳盖 12设有排气孔； 排气孔处设有防爆片 40。
[0028] 综上所述： 上述的动力电池壳体， 结构简单， 尤其是电能导出保险丝1^1、 热敏 电阻 112和电池 £串联连接； 当电池 £正常工作时， 电池 £的温度不会很高， 热敏 电阻 1^2此时关闭， 表现出绝缘状态； 当电池 £过充或出现其他意外情况 （如碰撞 ） ， 引起短路或燃烧等， 导致电池£出现高温， 热敏电阻1^2此时就会立即开启， 电能输出正极 20和电能输出负极 30通过热敏电阻尺2导通， 形成大电流通过， 串 联在内的电能导出保险丝 瞬间熔断， 从而截断电能向外输出， 形成一种对外 部的保护， 大大减少了起火、 爆炸的情况发生。
[0029] 实施例 2
[0030] 本实施例中的动力电池壳体基本与实施例 1中的动力电池壳体的结构基本一致 ， 唯一的不同点是电能输出正极 20和电能输出负极 30之间还串联有一个热敏电 阻尺2; 该热敏电阻 1^2的两端分别与电池正极、 外壳本体 10连接。 由于该增设的 热敏电阻112与外壳本体 10连接， 使得外壳本体 10带上正电荷。 [0031] 实施例 3
[0032] 本实施例中的动力电池壳体基本与实施例 2中的动力电池壳体的结构基本一致 ， 唯一的不同点是电能输出负极 30与电池负极之间还串联有电能导出保险丝 R1 。 多设置了一根电能导出保险丝 R1， 当电池 E温度过高时， 电能导出保险丝 R1熔 断出现意外的几率也就减小。
[0033] 实施例 4
[0034] 本实施例中的动力电池壳体基本与实施例 1中的动力电池壳体的结构一致， 唯 一的不同点是外壳本体 10是由塑料制成的， 热敏电阻 R2的两端通过导线分别与 电能输出正极 20和电能输出负极 30连接。 动力电池的外壳， 不全是由金属制成 的， 也有塑料制成的， 当采用塑料制成的外壳本体 10时， 此时， 在外壳本体 10 设置相应的安装槽， 方便导线的安放。
[0035] 上述仅以实施例来进一步说明本申请的技术内容， 以便于读者更容易理解， 但 不代表本申请的实施方式仅限于此， 任何依本申请所做的技术延伸或再创造， 均受本申请的保护。 本申请的保护范围以权利要求书为准。
发明概述
技术问题
问题的解决方案
发明的有益效果

Claims

\¥0 2019/148821 卩（：17（：\2018/102602 权利要求书
[权利要求 1] 一种动力电池壳体， 其特征在于： 包括外壳本体； 所述外壳本体设有 与电池正极电性连接的电能输出正极， 以及与电池负极电性连接的电 能输出负极； 所述电能输出正极通过电能导出保险丝与电池正极电性 连接， 和/或所述电能输出负极通过电能导出保险丝与电池负极电性 连接； 所述电能输出正极和电能输出负极之间连接有热敏电阻。
[权利要求 2] 根据权利要求 1所述的动力电池壳体， 其特征在于： 所述外壳本体为 金属壳体； 所述热敏电阻为一个， 且其两端分别连接电池负极和外壳 本体； 所述电能输出正极连接所述外壳本体。
[权利要求 3] 根据权利要求 1所述的动力电池壳体， 其特征在于： 所述外壳本体为 金属壳体； 所述热敏电阻为两个， 其中一个两端分别连接电池正极和 外壳本体， 另一个两端分别连接电池负极和外壳本体。
[权利要求 4] 根据权利要求 1所述的动力电池壳体， 其特征在于： 所述外壳本体为 塑料壳体； 所述热敏电阻的两端通过导线分别与电能输出正极和电能 输出负极连接。
[权利要求 5] 根据权利要求 1所述的动力电池壳体， 其特征在于： 所述外壳本体包 括壳身， 以及盖合在壳身的壳盖； 所述电能输出正极和电能输出负极 设于壳盖。
[权利要求 6] 根据权利要求 4所述的动力电池壳体， 其特征在于： 所述壳盖设有排 气孔； 所述的排气孔处设有防爆片。
PCT/CN2018/102602 2018-01-31 2018-08-28 一种动力电池壳体 WO2019148821A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810094003.4A CN108305984A (zh) 2018-01-31 2018-01-31 一种动力电池壳体
CN201810094003.4 2018-01-31

Publications (1)

Publication Number Publication Date
WO2019148821A1 true WO2019148821A1 (zh) 2019-08-08

Family

ID=62867450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/102602 WO2019148821A1 (zh) 2018-01-31 2018-08-28 一种动力电池壳体

Country Status (2)

Country Link
CN (1) CN108305984A (zh)
WO (1) WO2019148821A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108305984A (zh) * 2018-01-31 2018-07-20 深圳市华源达科技有限公司 一种动力电池壳体
CN111276665B (zh) * 2018-12-04 2022-05-24 中信国安盟固利动力科技有限公司 一种软包装锂离子电池
CN111446410B (zh) * 2019-01-17 2023-02-21 宁德新能源科技有限公司 电芯以及电池
CN111430655A (zh) * 2020-04-22 2020-07-17 福建飞毛腿动力科技有限公司 一种带有温度弹片的熔断保护结构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1943073A (zh) * 2004-05-19 2007-04-04 株式会社Lg化学 电池用安全元件和具有该元件的电池
CN206210962U (zh) * 2016-11-26 2017-05-31 河南国能电池有限公司 多重防护功能的锂电池
CN108305984A (zh) * 2018-01-31 2018-07-20 深圳市华源达科技有限公司 一种动力电池壳体

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1943073A (zh) * 2004-05-19 2007-04-04 株式会社Lg化学 电池用安全元件和具有该元件的电池
CN206210962U (zh) * 2016-11-26 2017-05-31 河南国能电池有限公司 多重防护功能的锂电池
CN108305984A (zh) * 2018-01-31 2018-07-20 深圳市华源达科技有限公司 一种动力电池壳体

Also Published As

Publication number Publication date
CN108305984A (zh) 2018-07-20

Similar Documents

Publication Publication Date Title
WO2019148821A1 (zh) 一种动力电池壳体
KR100786941B1 (ko) 이차전지 보호회로 및 이를 구비한 이차전지
CN100547850C (zh) 一种防止二次电池过度充电的安全器件以及具有该安全器件的二次电池
CN208336400U (zh) 一种自加热锂离子电池
CN104051702A (zh) 用于电池电芯的安全元件
CN102544427A (zh) 电源装置及具备该电源装置的车辆
WO2019192356A1 (zh) 一种高压熔断器
JP2016506042A (ja) 電池
WO2019144825A1 (zh) 二次电池
CN113054329A (zh) 带有过热安全保护的锂离子电池及其过热安全保护方法
JP2006318676A (ja) 電池モジュール
KR20200084937A (ko) 하이브리드 배터리의 온도 제어 시스템
CN109378435B (zh) 一种电池极耳及其制备方法和锂电池
CN104701468B (zh) 用于车辆的高电压电池
WO2022143263A1 (zh) 电池及电子设备
CN107331906A (zh) 一种锂电池高温防护结构及锂电池
CN204290271U (zh) 一种电动车保护电路
CN207896193U (zh) 一种动力电池壳体
JPH05151971A (ja) リチウム電池
CN205752362U (zh) 一种电池组及使用该电池组的电源系统
CN208028098U (zh) 电流中断装置、电池盖板组件、单体电池、电池模组、动力电池及电动汽车
KR20220022590A (ko) 단선 유도 전극리드를 포함하는 배터리 모듈 및 이를 이용한 안전성 향상 방법
JP7574440B2 (ja) 熱暴走のトリガ方法
CN210723271U (zh) 一种圆柱锂离子电池用安全保护片
CN108445813B (zh) 一种汽车发动机的电源控制电路

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18904008

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18904008

Country of ref document: EP

Kind code of ref document: A1