WO2023236407A1 - 一种绝缘套及电池组件 - Google Patents

一种绝缘套及电池组件 Download PDF

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Publication number
WO2023236407A1
WO2023236407A1 PCT/CN2022/125239 CN2022125239W WO2023236407A1 WO 2023236407 A1 WO2023236407 A1 WO 2023236407A1 CN 2022125239 W CN2022125239 W CN 2022125239W WO 2023236407 A1 WO2023236407 A1 WO 2023236407A1
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WO
WIPO (PCT)
Prior art keywords
battery
sleeve
insulating sleeve
top cover
insulating
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PCT/CN2022/125239
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English (en)
French (fr)
Inventor
陈泮东
黄利明
徐悦斌
Original Assignee
湖北亿纬动力有限公司
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Application filed by 湖北亿纬动力有限公司 filed Critical 湖北亿纬动力有限公司
Priority to DE212022000416.7U priority Critical patent/DE212022000416U1/de
Publication of WO2023236407A1 publication Critical patent/WO2023236407A1/zh

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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
    • H01M50/10—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
    • 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
    • H01M50/147—Lids or covers
    • 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
    • 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
    • H01M50/593—Spacers; Insulating plates
    • 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

  • This application relates to the field of battery technology, for example, to an insulating sleeve and a battery assembly.
  • the positive and negative electrodes of cylindrical batteries are usually located at the same end of the battery, short circuits can easily occur if they are accidentally touched by conductive objects during transportation or handling.
  • the industry basically insulates batteries through structural design on the battery packaging box, which fails to fully protect individual batteries. If the packaging box is damaged or conductors are mixed in the packaging box, there is still a risk of battery short circuit.
  • embodiments of the present application provide an insulating sleeve that can protect a battery and prevent a short circuit in the battery.
  • the embodiment of the present application provides an insulating sleeve, including:
  • a battery, the top of the battery is provided with a battery positive electrode and a battery negative electrode;
  • Insulating sleeve the insulating sleeve includes a top cover and a sleeve, the top cover is connected to the opening of one end of the sleeve, the sleeve can be sleeved on the outer peripheral surface of the battery, and makes the top cover The cover covers the positive electrode and the negative electrode of the battery.
  • the battery positive electrode forms a boss at the top of the battery, and the top cover is provided with a corresponding relief groove, and the battery positive electrode is located in the relief groove.
  • the exhaust channel is provided on the inner wall of the sleeve, and the exhaust channel extends along the axial direction of the sleeve to the open end of the sleeve.
  • a plurality of protrusions are provided on the inner wall of the sleeve. One end of the protrusions is connected to the top cover and extends along the axial direction of the sleeve. The adjacent protrusions The exhaust passage is formed between them.
  • the insulating sleeve is made of insulating material.
  • the battery assembly proposed in this application protects the positive and negative electrodes of the battery by providing an insulating sleeve as described above on the battery, effectively preventing the positive and negative electrodes of the battery from being connected by conductive objects and forming a short circuit, thereby preventing the battery from being damaged by the short circuit. ; and prevent the battery from being hit or scratched.
  • Figure 1 is a schematic structural diagram of a battery provided by an embodiment of the present application.
  • Figure 2 is a schematic structural diagram of a battery assembly provided by an embodiment of the present application.
  • Figure 4 is a schematic structural diagram of an insulating sleeve provided by an embodiment of the present application.
  • Figure 6 is a schematic structural diagram of an insulating sleeve provided by another embodiment of the present application.
  • Insulating sleeve 21. Top cover; 211. Avoidance groove; 212. Groove bottom plate; 2121. Through hole; 22. Sleeve; 221. Protrusion; 23. Exhaust channel.
  • connection should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral body.
  • It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
  • the specific meanings of the above terms in this application can be understood on a case-by-case basis.
  • the term “above” or “below” a first feature to a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them.
  • the terms “above”, “above” and “above” a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature.
  • “Below”, “below” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • Figure 1 shows a cylindrical battery 1. Since the battery positive electrode 11 and the battery negative electrode 12 are located at the same end of the battery 1, if they are accidentally touched by a conductive object during transportation or handling, a short circuit will easily occur, resulting in Battery 1 was seriously damaged and even caused combustion and explosion.
  • this embodiment provides an insulating sleeve 2 and a battery assembly.
  • the battery assembly includes a battery 1 and an insulating sleeve 2 .
  • the top of the battery 1 is provided with a battery positive electrode 11 and a battery negative electrode 12.
  • the insulating sleeve 2 includes a top cover 21 and a sleeve 22.
  • the top cover 21 is connected to the opening of one end of the sleeve 22.
  • the sleeve 22 can be sleeved on the battery 1. outer peripheral surface, and the top cover 21 covers the positive electrode 11 and the negative electrode 12 of the battery.
  • the insulating sleeve 2 By putting the insulating sleeve 2 on a single battery 1 and covering the battery positive electrode 11 and the battery negative electrode 12, it can effectively prevent the battery positive electrode 11 and the battery negative electrode 12 from being connected by conductive objects to form a short circuit, thereby preventing the battery 1 from being damaged by the short circuit; Moreover, the insulating sleeve 2 can protect the battery positive electrode 11 and the battery negative electrode 12 from being hit or scratched.
  • the battery positive electrode 11 forms a boss on the top of the battery 1, and the top cover 21 is provided with a corresponding relief groove 211.
  • the battery positive electrode 11 is located in the relief groove 211, so that the top cover 21 It can fit the battery negative electrode 12, thereby effectively protecting the battery positive electrode 11 and the battery negative electrode 12.
  • the insulating sleeve 2 is provided with an exhaust channel 23.
  • the air in the insulating sleeve 2 is discharged from the exhaust channel 23 to prevent gas between the insulating sleeve 2 and the battery 1. Excessive pressure makes assembly more laborious.
  • the exhaust channel 23 is provided on the inner wall of the sleeve 22 , and the exhaust channel 23 extends along the axial direction of the sleeve 22 to the open end of the sleeve 22 .
  • the gas between the insulating sleeve 2 and the battery 1 is gradually discharged along the exhaust channel 23 on the inner wall of the sleeve 22.
  • multiple exhaust channels 23 are provided to enable gas to be discharged quickly.
  • a plurality of protrusions 221 are provided on the inner wall of the sleeve 22.
  • One end of the protrusions 221 is connected with the top cover 21 and extends along the axial direction of the sleeve 22.
  • An exhaust channel is formed between adjacent protrusions 221. twenty three.
  • the protrusion 221 is arranged in an arc shape on the side facing the battery 1 to fit the arc-shaped outer peripheral surface of the battery 1, so that the protrusion 221 can closely fit the battery 1 and prevent the insulating sleeve 2 from being removed from the battery 1. 1 falls off.
  • the inner diameter of the exhaust channel 23 is larger than the outer diameter of the battery 1. There is a gap between the exhaust channel 23 and the battery 1 during assembly. The above gap forms the exhaust channel 23 for the air in the insulating sleeve 2 to be discharged, thereby making the assembly labor-saving.
  • a plurality of bumps are provided on the inner wall of the sleeve 22, and the gaps between adjacent bumps form an exhaust channel 23.
  • the cross-section of the bumps can be rectangular, semicircular, semi-elliptical or parabolic, etc. shape.
  • the arrangement of the bumps on the inner wall of the sleeve 22 is not limited, as long as there is a gap between the bumps to allow the air between the insulating sleeve 2 and the battery 1 to be discharged.
  • the insulating sleeve 2 is made of insulating material, and the top cover 21 and the sleeve 22 are an integrated structure of blister molding or injection molding, which is easy to process and low in cost.
  • the insulation sleeve provided in this embodiment is basically the same as the previous embodiment, except that:
  • no protrusions 221 are provided on the inner wall of the sleeve 22.
  • the sleeve 22 directly contacts and presses with the battery 1, so that the insulating sleeve 2 is tightly sleeved on the battery 1, and the top cover 21 is provided with a through hole 2121, the through hole 2121 is connected with the internal space of the insulating sleeve 2, the through hole 2121 forms an exhaust channel 23, and the air in the insulating sleeve 2 is discharged from the through hole 2121 on the top cover 21.
  • the through hole 2121 is provided on the groove bottom plate 212 of the escape groove 211 , and for example, it can be provided at the center of the groove bottom plate 212 , which is more conducive to the smooth discharge of the air in the insulation sleeve 2 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

本申请提供了一种绝缘套及电池组件。该绝缘套用于对电池进行防护，所述电池的顶端设置有电池正极和电池负极，所述绝缘套包括顶盖和套筒，所述顶盖盖合连接于所述套筒的一端开口，所述套筒可套设于所述电池的外周面，并使所述顶盖盖设住所述电池正极和所述电池负极。

Description

一种绝缘套及电池组件
本申请要求在2022年6月9日提交中国专利局、申请号为202221437995.4的中国专利申请的优先权，以上申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及电池技术领域，例如涉及一种绝缘套及电池组件。
背景技术
圆柱电池由于正极与负极通常位于电池的同一端，运输或取放过程中如果被导电物体误触，极容易发生短路。目前，行业内基本还是通过在电池包装盒上做结构设计来对电池做绝缘处理，未能对单个电池进行充分的保护，若包装盒损坏或包装盒内混入导体，仍然存在电池短路的风险。
因此，亟需一种绝缘套及电池组件，以解决相关技术中存在的以上问题。
发明内容
第一方面，本申请实施例提供了一种绝缘套，能够对电池进行防护，防止电池发生短路。
本申请实施例提供了一种绝缘套，包括：
电池，所述电池的顶端设置有电池正极和电池负极；及
绝缘套，所述绝缘套包括顶盖和套筒，所述顶盖盖合连接于所述套筒的一端开口，所述套筒可套设于所述电池的外周面，并使所述顶盖盖设住所述电池正极和所述电池负极。
在一实施例中，所述电池正极在所述电池的顶端形成凸台，所述顶盖上对应设置有避让槽，所述电池正极位于所述避让槽内。
在一实施例中，所述绝缘套上设置有排气通道，所述绝缘套装配时，所述绝缘套内的空气从所述排气通道排出。
在一实施例中，所述排气通道设置于所述套筒的内壁上，所述排气通道沿所述套筒的轴向延伸至所述套筒的开口端。
在一实施例中，所述排气通道设置有多条。
在一实施例中，所述套筒的内壁上设置有多条凸起，所述凸起的一端与所述顶盖相接并沿所述套筒的轴向延伸，相邻所述凸起之间形成所述排气通道。
在一实施例中，所述凸起朝向所述电池的一侧设置为弧形，以能够贴合于所述电池的弧形的外周面。
在一实施例中，所述套筒的内壁上设置有多个凸点，相邻所述凸点之间的间隙形成所述排气通道，所述凸点的截面为矩形、半圆形、半椭圆形或抛物线形。
在一实施例中，所述顶盖上设置有通孔，所述通孔与所述绝缘套内部空间相连通，所述通孔形成所述排气通道。
在一实施例中，所述通孔设置于所述避让槽的槽底板上。
在一实施例中，所述绝缘套采用绝缘材料制作而成。
在一实施例中，所述顶盖和所述套筒为吸塑或注塑成型的一体式结构。
第二方面，本申请实施例提供了一种电池组件，避免了相关技术中电池缺少防护，容易因电池正极和电池负极连通而发生短路的情况。
本申请实施例提供了一种电池组件，包括电池以及如上所述的绝缘套。
本申请的有益效果：
本申请提出的绝缘套，能够将电池正极和电池负极盖设起来，有效防止电池正极和电池负极被导电物体连通而形成短路，从而防止电池因短路受损；而且，绝缘套能够对电池正极和电池负极形成防护，防止其受到撞击或划伤。
本申请提出的电池组件，通过在电池上设置如上所述的绝缘套，对电池正极和电池负极进行防护，有效防止电池正极和电池负极被导电物体连通而形成短路，从而防止电池因短路受损；并能够防止电池受到撞击或划伤。
附图说明
图1是本申请一实施例提供的电池的结构示意图；
图2是本申请一实施例提供的电池组件的结构示意图；
图3是本申请一实施例提供的电池组件的结构剖视图；
图4是本申请一实施例提供的绝缘套的结构示意图；
图5是本申请另一实施例提供的电池组件的结构示意图；
图6是本申请另一实施例提供的绝缘套的结构示意图。
图中：
1、电池；11、电池正极；12、电池负极；
2、绝缘套；21、顶盖；211、避让槽；212、槽底板；2121、通孔；22、套筒；221、凸起；23、排气通道。
具体实施方式
在本申请的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本实施例的描述中，术语“上”、“下”、“右”、“左”等方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述和简化操作，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅仅用于在描述上加以区分，并没有特殊的含义。
如图1所示为一种圆柱形的电池1，电池1由于电池正极11与电池负极12位于电池1的同一端，运输或取放过程中如果被导电物体误触，极容易发生短路，造成电池1严重损坏，甚至引起燃烧爆炸。
如图1和图2所示，本实施例提供一种绝缘套2以及电池组件，电池组件包括电池1和绝缘套2。电池1的顶端设置有电池正极11和电池负极12，绝缘套2包括顶盖21和套筒22，顶盖21盖合连接于套筒22的一端开口，套筒22能够套设于电池1的外周面，并使顶盖21盖设住电池正极11和电池负极12。通过在单个电池1上套装绝缘套2，将电池正极11和电池负极12盖设起来，能够有效防止电池正极11和电池负极12被导电物体连通而形成短路，从而防止电池1因短路受损；而且，绝缘套2能够对电池正极11和电池负极12形成防护，防止其受到撞击或划伤。
示例性的，如图3和图4所示，电池正极11在电池1的顶端形成凸台，顶盖21上对应设置有避让槽211，电池正极11位于避让槽211内，以使顶盖21能够贴合电池负极12，从而对电池正极11和电池负极12形成有效防护。
示例性的，请继续参阅图4，绝缘套2上设置有排气通道23，绝缘套2装配时，绝缘套2内的空气从排气通道23排出，防止绝缘套2与电池1之间气体压力过大而导致装配较为费力。
本实施例中，排气通道23设置于套筒22的内壁上，排气通道23沿套筒22的轴向延伸至套筒22的开口端。绝缘套2与电池1装配过程中，绝缘套2与电池1之间气体沿套筒22内壁上的排气通道23逐渐排出。
示例性的，如图4所示，排气通道23设置有多条，以使气体能够较快地排出。示例性的，套筒22的内壁上设置有多条凸起221，凸起221的一端与顶盖21相接并沿套筒22的轴向延伸，相邻凸起221之间形成排气通道23。示例性的，凸起221朝向电池1的一侧设置为弧形，以能够贴合于电池1的弧形的外周面，从而能够使凸起221与电池1紧密配合，防止绝缘套2从电池1脱落。而排气通道23的内径大于电池1的外径，装配时与电池1之间存在间隙，上述间隙形成排气通道23供绝缘套2内的空气排出，从而使装配变得省力。
示例性的，套筒22的内壁上设置有多个凸点，相邻凸点之间的间隙形成排气通道23，凸点的截面可以为矩形、半圆形、半椭圆形或抛物线形等形状。凸点在套筒22内壁上的排布方式不限制，只要凸点之间留有间隙，能够绝缘套2与电池1之间的空气排出即可。
示例性的，绝缘套2采用绝缘材料制作而成，顶盖21和套筒22为吸塑或注塑成型的一体式结构，加工方便，成本较低。
本实施例提供的绝缘套与前述实施例基本相同，不同之处在于：
本实施例中，如图5和图6所示，套筒22内壁上不设置凸起221，套筒22直接与电池1接触压紧配合，使绝缘套2套紧在电池1上，顶盖21上设置有通孔2121，通孔2121与绝缘套2内部空间相连通，通孔2121形成排气通道23，绝缘套2内的空气从顶盖21上的通孔2121排出。
示例性的，通孔2121设置于避让槽211的槽底板212上，示例性的可设置于槽底板212的中心，更有利于绝缘套2内的空气顺利排出。

Claims (13)

  1. 一种绝缘套，用于对电池(1)进行防护，所述电池(1)的顶端设置有电池正极(11)及电池负极(12)，所述绝缘套(2)包括顶盖(21)和套筒(22)，所述顶盖(21)盖合连接于所述套筒(22)的一端开口，所述套筒(22)可套设于所述电池(1)的外周面，并使所述顶盖(21)盖设住所述电池正极(11)和所述电池负极(12)。
  2. 根据权利要求1所述的绝缘套，其中，所述电池正极(11)在所述电池(1)的顶端形成凸台，所述顶盖(21)上对应设置有避让槽(211)，所述电池正极(11)位于所述避让槽(211)内。
  3. 根据权利要求2所述的绝缘套，其中，所述绝缘套(2)上设置有排气通道(23)，所述绝缘套(2)装配时，所述绝缘套(2)内的空气从所述排气通道(23)排出。
  4. 根据权利要求3所述的绝缘套，其中，所述排气通道(23)设置于所述套筒(22)的内壁上，所述排气通道(23)沿所述套筒(22)的轴向延伸至所述套筒(22)的开口端。
  5. 根据权利要求4所述的绝缘套，其中，所述排气通道(23)设置有多条。
  6. 根据权利要求5所述的绝缘套，其中，所述套筒(22)的内壁上设置有多条凸起(221)，所述凸起(221)的一端与所述顶盖(21)相接并沿所述套筒(22)的轴向延伸，相邻所述凸起(221)之间形成所述排气通道(23)。
  7. 根据权利要求6所述的绝缘套，其中，所述凸起(221)朝向所述电池(1)的一侧设置为弧形，以贴合于所述电池(1)的弧形的外周面。
  8. 根据权利要求3所述的绝缘套，其中，所述套筒(22)的内壁上设置有多个凸点，相邻所述凸点之间的间隙形成所述排气通道(23)，所述凸点的截面为矩形、半圆形、半椭圆形或抛物线形。
  9. 根据权利要求3所述的绝缘套，其中，所述顶盖(21)上设置有通孔(2121)，所述通孔(2121)与所述绝缘套(2)内部空间相连通，所述通孔(2121)形成所述排气通道(23)。
  10. 根据权利要求9所述的绝缘套，其中，所述通孔(2121)设置于所述避让槽(211)的槽底板(212)上。
  11. 根据权利要求1-10任一项所述的绝缘套，其中，所述绝缘套(2)采用绝缘材料制作而成。
  12. 根据权利要求11所述的绝缘套，其中，所述顶盖(21)和所述套筒(22)为吸塑或注塑成型的一体式结构。
  13. 一种电池组件，包括电池(1)以及如权利要求1-12中任一项所述的绝缘套。
PCT/CN2022/125239 2022-06-09 2022-10-14 一种绝缘套及电池组件 WO2023236407A1 (zh)

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