WO2021196200A1 - 电芯隔离套及电池模组 - Google Patents

电芯隔离套及电池模组 Download PDF

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Publication number
WO2021196200A1
WO2021196200A1 PCT/CN2020/083298 CN2020083298W WO2021196200A1 WO 2021196200 A1 WO2021196200 A1 WO 2021196200A1 CN 2020083298 W CN2020083298 W CN 2020083298W WO 2021196200 A1 WO2021196200 A1 WO 2021196200A1
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WO
WIPO (PCT)
Prior art keywords
battery
connecting side
isolation sleeve
cell
hole
Prior art date
Application number
PCT/CN2020/083298
Other languages
English (en)
French (fr)
Inventor
程志刚
王天付
花黄伟
魏瑞洪
Original Assignee
欣旺达电动汽车电池有限公司
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 欣旺达电动汽车电池有限公司 filed Critical 欣旺达电动汽车电池有限公司
Priority to EP20799596.0A priority Critical patent/EP3910697A4/en
Priority to JP2020563705A priority patent/JP7220725B2/ja
Publication of WO2021196200A1 publication Critical patent/WO2021196200A1/zh

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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
    • 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
    • H01M50/291—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 characterised by their shape
    • 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
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • 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

  • the invention relates to the technical field of power batteries, in particular to a battery cell isolation sleeve and a battery module.
  • the present invention proposes a battery cell isolation sleeve and a battery module, aiming to solve the problem that water droplets on the side of the battery cell may flow into the battery module through the battery cell isolation sleeve, causing leakage and short circuit of the battery module. , Fire and explosion and other dangerous phenomena.
  • a battery isolation sleeve the battery isolation sleeve is used to be arranged between two battery cores, the battery isolation sleeve has a left connection side and a right connection side, and the left connection side is provided with a first vertical strip hole , The right connecting edge is provided with a second vertical hole.
  • the battery isolation sleeve has a lower connecting side, the left end of the lower connecting side is connected to the lower end of the left connecting side, the right end of the lower connecting side is connected to the lower end of the right connecting side, and the The left end of the lower connecting side and the lower end of the left connecting side form a left corner, and the right end of the lower connecting side and the lower end of the right connecting side form a right corner.
  • the corner is provided with a first through hole
  • the right wrap corner is provided with a second through hole.
  • the lower connecting edge is provided with a third through hole.
  • the cell isolation sleeve has an upper connecting side, the left end of the upper connecting side is connected with the upper end of the left connecting side, the right end of the lower connecting side is connected with the upper end of the right connecting side, and the
  • the lower side wall of the upper connecting side is provided with an upper partition, and the upper partition divides the hollow space of the battery cell isolation sleeve into a battery cell installation space and a battery cell stacking space.
  • first vertical bar holes are respectively communicated with the cell installation space and the cell stacking space
  • second vertical bar holes are respectively communicated with the cell installation space and the cell stacking space
  • the upper side wall of the lower connecting edge is provided with a lower partition plate, and the lower partition plate corresponds to the upper partition plate up and down.
  • the inner and outer side walls of the upper partition board are both provided with sealing strips.
  • the left wrap corner is provided with a first bump
  • the first bump is located in the first through hole
  • the right wrap corner is provided with a second bump
  • the second bump is located at the The second through hole.
  • the present invention also provides a battery module, which includes at least two battery cells, and a battery cell isolation sleeve as described above is arranged between each two battery cells.
  • the battery module further includes an upper cover, the upper cover is arranged on the at least two battery cells, the lower side wall of the upper cover is provided with two rows of ribs side by side, each row of ribs It includes multiple reinforcing ribs, and foam is arranged between each two reinforcing ribs.
  • the present invention has the beneficial effects: the left connecting side and the right connecting side of the battery cell isolation sleeve are respectively provided with a first vertical strip hole and a second vertical strip hole, and water droplets on the side of the battery cell spread to the left connecting side On the right connection side, water drops will gather in the first vertical hole and the second vertical hole, thereby blocking the continued spread of the water drops, and due to the action of gravity, the water drops will fall when they gather to a certain size, which solves the problem of electricity.
  • the water droplets on the side of the core may flow into the battery module through the battery isolation sleeve, causing problems such as leakage, short circuit, fire and explosion in the battery module.
  • FIG. 1 is a schematic diagram of the structure of a battery isolation sleeve provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the structure of a battery isolation sleeve provided by another embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a battery isolation sleeve provided by another embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a battery module provided by an embodiment of the present invention.
  • Fig. 5 is a schematic structural diagram of an upper cover provided by an embodiment of the present invention.
  • an embodiment of the present invention provides a battery isolation sleeve, the battery isolation sleeve is used to be arranged between two batteries, the battery isolation sleeve has a left connecting side 1 and a right connecting side 2, and the left connecting side 1 is provided with a first vertical hole 11, and the right connecting side 2 is provided with a second vertical hole 21.
  • a first vertical strip hole 11 and a second vertical strip hole 21 are respectively provided on the left connecting side 1 and the right connecting side 2 of the battery cell isolation sleeve.
  • the water droplets on the side of the battery cell spread to the left connecting side 1 and the right connecting side 2.
  • Water droplets will gather in the first vertical bar hole 11 and the second vertical bar hole 21, thereby blocking the continued spread of the water droplets, and due to the action of gravity, the water droplets will fall when they gather to a certain size, which solves the problem of the side of the battery. Water droplets may flow into the battery module through the battery cell isolation sleeve, resulting in dangerous phenomena such as leakage, short circuit, fire and explosion in the battery module.
  • both the first vertical strip hole 11 and the second vertical strip hole 21 are multiple, that is, the left connecting side 1 is provided with multiple first vertical holes 11, and the right connecting side 2 is provided with multiple The second vertical bar hole 21. This increases the probability that water drops will collect in the first vertical hole 11 and the second vertical hole 21, and increases the safety factor of the battery module.
  • the left side wall of the left connecting side 1 and the right side wall of the right connecting side 2 are both used to connect with the side plate, and the left side wall of the left connecting side 1 and the right side wall of the right connecting side 2 Glue is provided, and the left side wall of the left connecting side 1 and the right side wall of the right connecting side 2 are respectively pasted to the side plates by glue.
  • the battery isolation sleeve has a lower connecting side 3, the left end of the lower connecting side 3 is connected to the lower end of the left connecting side 1, the right end of the lower connecting side 3 is connected to the lower end of the right connecting side 2, and the lower connecting side 3
  • the left end of the left end and the lower end of the left connecting side 1 form a left corner 4
  • the right end of the lower connecting side 3 and the lower end of the right connecting side 2 form a right corner 5
  • the left corner 4 is provided with a first through hole 41.
  • the right wrap corner 5 is provided with a second through hole 51.
  • the glue on the left side wall of the left connecting side 1 and the right side wall of the right connecting side 2 flows downward and flows to the left corner 4 and the right corner 5 respectively, so that the glue enters the first through hole 41 and the second through hole 51,
  • the battery core is bonded to the left corner 4 and the right corner 5, and a sealing structure is formed at the left corner 4 and the right corner 5, which has the following effects: 1. Blocking the path of water droplets spreading. 2. In the subsequent working process of the battery module, avoid the blue film at the bottom corner of the cell from rubbing with the cell isolation sleeve, thereby reducing the possibility of cracking of the blue film at the bottom corner of the cell. 3. When the battery cell ruptures at the bottom corner, liquid leakage can be prevented.
  • the lower connecting edge 3 is provided with a third through hole 31.
  • the third through hole 31 can drain the water droplets at the bottom of the battery cell.
  • the third through hole 31 blocks the spread of condensation water droplets at the bottom of the cell. When the condensation water droplets gather at the third through hole 31 at the bottom of the cell isolation sleeve, the condensation water droplets will fall into the third through hole 31, thereby Discharge the battery module.
  • the cell isolation sleeve has an upper connecting side 6, the left end of the upper connecting side 6 is connected to the upper end of the left connecting side 1, the right end of the lower connecting side 3 is connected to the upper end of the right connecting side 2, and the upper connecting side 6
  • An upper partition 61 is provided on the lower side wall of the battery, and the upper partition 61 divides the hollow space of the battery cell isolation sleeve into a battery cell installation space and a battery cell stacking space.
  • the cell installation space is used to install one cell, and the cell stacking space is used to abut another cell when stacking.
  • the first vertical bar holes 11 are respectively connected with the cell installation space and the cell stacking space
  • the second vertical bar holes 21 are respectively connected with the cell installation space and the cell stacking space.
  • the first vertical bar hole 11 is connected to the battery cell installation space and the battery cell stacking space
  • the second vertical bar hole 21 is connected to the battery cell installation space and the battery cell stacking space, and is installed in the battery cell installation space.
  • Both of the battery cells and the battery cells stacked in the battery cell stacking space can collect water droplets through the first vertical bar hole 11 or/and the second vertical bar hole 21.
  • the upper side wall of the lower connecting side 3 is provided with a lower partition, and the lower partition corresponds to the upper partition 61 up and down. In order to further separate the battery cell installation space and the battery cell stacking space.
  • the inner and outer side walls of the upper partition 61 are both provided with sealing strips 7. Both the inner and outer side walls of the upper partition 61 are provided with double-sided tape or glue, and the inner and outer side walls of the upper partition 61 are pasted with the sealing strip 7 through the double-sided tape or glue.
  • the sealing strip 7 divides the cells installed in the cell isolation sleeve into a conductive area and an insulating area with the sealing strip 7 as a boundary.
  • the distance between the sealing strip 7 and the upper connecting edge 6 is 0.5 mm to 15 mm.
  • the thickness of the sealing strip 7 is 0.5 mm to 5 mm, and double-sided tape is attached to the back of the sealing strip.
  • the double-sided adhesive is used to fix it on the cell isolation sleeve. Then, the compressibility of the sealing strip 7 is used to make the front of the cell isolation sleeve.
  • the sealing strip 7 uses the pressure when the battery cell and the battery isolation sleeve are fixed, so that the sealing strip 7 on the front of the battery isolation sleeve is compressed and close to the battery for sealing; the sealing strip 7 on the back of the battery isolation sleeve is isolated from the battery by the battery
  • the pressure during the stacking between the sleeves causes the sealing strip 7 to compress and close to the battery core for sealing; in this way, a sealing strip 7 can be formed to divide the stacked battery modules into conductive and insulating areas, and the sealing strip 7 is above It is a conductive area, and the area below the sealing strip 7 is an insulating area.
  • the sealing strip 7 is formed of an insulating compressible material, which can be a rubber strip or foam.
  • both the inner and outer side walls of the upper partition 61 are provided with grooves, and a sealing strip 7 is provided in the grooves.
  • the sealing strip 7 is pasted in the groove, and the groove has a certain fixing effect on the sealing strip 7.
  • both the left connecting side 1 and the right connecting side 2 are provided with a notch 9, and the notch 9 is used for positioning and fixing the sealing strip 7.
  • the inner and outer side walls of the upper partition 61 are both provided with a sealing strip 7, and two ends of the sealing strip 7 are provided with folding blocks 71.
  • One folding block is connected to the right side wall of the left connecting side 1, and the other folding block 71 is connected to the left side wall of the right connecting side 2.
  • the connection method can be pasted by double-sided tape or glue.
  • the inner and outer side walls of the upper partition 61 are provided with sealing strips 7, and the inner and outer side walls of the upper partition 61 are both provided with positioning holes 611, and one side wall of the sealing strip 7 is provided with There are protrusions that cooperate with the positioning holes 611.
  • the sealing strip 7 and the battery isolation sleeve are integrally formed.
  • the sealing strip 7 is in the shape of a long ring, the sealing strip 7 is sleeved on the cell isolation sleeve by elastic deformation, and the sealing strip 7 is located on the upper partition 61.
  • the left wrap corner 4 is provided with a first bump
  • the first bump is located in the first through hole 41
  • the right wrap corner 5 is provided with a second bump 52
  • the second bump 52 is located in the second through hole. ⁇ 51 ⁇ .
  • the first bump and the second bump 52 have the function of blocking the glue, so that the glue stays in the first through hole 41 and the second through hole 51.
  • the present invention also provides a battery module, which includes at least two battery cells, and a battery cell isolation sleeve as described above is arranged between each two battery cells.
  • the battery module further includes an upper cover 8.
  • the upper cover 8 is provided on at least two battery cells.
  • the lower side wall of the upper cover 8 is provided with two rows parallel to each other.
  • Reinforcing ribs, each row of reinforcing ribs includes a plurality of reinforcing ribs 81, and foam 82 is arranged between each two reinforcing ribs 81.
  • the foam 82 can prevent the capillary phenomenon and spread the condensation water droplets through the upper cover 8 to the side plates, end plates and other metal parts.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Primary Cells (AREA)

Abstract

一种电芯隔离套及电池模组，属于动力电池技术领域。在电芯隔离套的左连接边（1）和右连接边（2）分别设有第一竖条孔（11）和第二竖条孔（21），电芯侧面的水珠蔓延到左连接边（1）和右连接边（2），水珠会在第一竖条孔（11）和第二竖条孔（21）聚集，从而阻断了水珠继续蔓延，并且由于重力的作用，水珠聚集到一定大小时会掉落，解决电芯侧面的水珠可能会经电芯隔离套流入电池模组内，导致电池模组出现漏电、短路、起火爆炸等危险现象的问题。

Description

电芯隔离套及电池模组 技术领域
本发明涉及动力电池技术领域，特别涉及一种电芯隔离套及电池模组。
 背景技术
当电池模组处于低温的环境中，空气中的水分会凝结在电芯的侧面，根据毛细现象可知，结露的水会沿着电芯侧面上慢慢往上蔓延，水珠会越积越大，水珠可能会经电芯隔离套流入电池模组内，导致电池模组出现漏电、短路、起火爆炸等危险现象。
 技术问题
针对现有技术不足，本发明提出一种电芯隔离套及电池模组，旨在解决电芯侧面的水珠可能会经电芯隔离套流入电池模组内，导致电池模组出现漏电、短路、起火爆炸等危险现象的问题。
 技术解决方案
本发明提出的技术方案是：
一种电芯隔离套，所述电芯隔离套用于设于两个电芯之间，所述电芯隔离套具有左连接边和右连接边，所述左连接边设有第一竖条孔，所述右连接边设有第二竖条孔。
进一步地，所述电芯隔离套具有下连接边，所述下连接边的左端与所述左连接边的下端连接，所述下连接边的右端与所述右连接边的下端连接，在所述下连接边的左端与所述左连接边的下端的连接处形成左包角，在所述下连接边的右端与所述右连接边的下端的连接处形成右包角，所述左包角设有第一通孔, 所述右包角设有第二通孔。
进一步地，所述下连接边设有第三通孔。
进一步地，所述电芯隔离套具有上连接边，所述上连接边的左端与所述左连接边的上端连接，所述下连接边的右端与所述右连接边的上端连接，所述上连接边的下侧壁设有上隔板，所述上隔板将所述电芯隔离套中空间隔分为电芯安装空间和电芯堆叠空间。
进一步地，所述第一竖条孔分别与所述电芯安装空间和所述电芯堆叠空间连通，所述第二竖条孔分别与所述电芯安装空间和所述电芯堆叠空间连通。
进一步地，所述下连接边的上侧壁设有下隔板，所述下隔板与所述上隔板上下对应。
进一步地，所述上隔板的内外侧壁均设有密封条。
进一步地，所述左包角设有第一凸块，所述第一凸块位于所述第一通孔中，所述右包角设有第二凸块，所述第二凸块位于所述第二通孔中。
本发明还提供一种电池模组，包括至少两个电芯，每两个电芯之间设有如上述的电芯隔离套。
进一步地，所述电池模组还包括上盖，所述上盖设于所述至少两个电芯上，所述上盖的下侧壁设有左右并列的两列加强筋，每列加强筋包括多条加强筋，每两条加强筋之间设有泡棉。
 有益效果
根据上述的技术方案，本发明有益效果：在电芯隔离套的左连接边和右连接边分别设有第一竖条孔和第二竖条孔，电芯侧面的水珠蔓延到左连接边和右连接边，水珠会在第一竖条孔和第二竖条孔聚集，从而阻断了水珠继续蔓延，并且由于重力的作用，水珠聚集到一定大小时会掉落，解决电芯侧面的水珠可能会经电芯隔离套流入电池模组内，导致电池模组出现漏电、短路、起火爆炸等危险现象的问题。
 附图说明
图1是应用本发明实施例提供的电芯隔离套的结构示意图；
图2是应用本发明另一实施例提供的电芯隔离套的结构示意图；
图3是应用本发明另一实施例提供的电芯隔离套的结构示意图；
图4是应用本发明实施例提供的电池模组的结构示意图；
图5是应用本发明实施例提供的上盖的结构示意图。
 本发明的最佳实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
如图1所示，本发明实施例提出一种电芯隔离套，电芯隔离套用于设于两个电芯之间，电芯隔离套具有左连接边1和右连接边2，左连接边1设有第一竖条孔11，右连接边2设有第二竖条孔21。
在电芯隔离套的左连接边1和右连接边2分别设有第一竖条孔11和第二竖条孔21，电芯侧面的水珠蔓延到左连接边1和右连接边2，水珠会在第一竖条孔11和第二竖条孔21聚集，从而阻断了水珠继续蔓延，并且由于重力的作用，水珠聚集到一定大小时会掉落，解决电芯侧面的水珠可能会经电芯隔离套流入电池模组内，导致电池模组出现漏电、短路、起火爆炸等危险现象的问题。
在一些实施例中，第一竖条孔11和第二竖条孔21均为多个，也就是，左连接边1设有多个第一竖条孔11，右连接边2设有多个第二竖条孔21。这样增加了水珠会在第一竖条孔11和第二竖条孔21聚集的机率，增加电池模组的安全系数。
在本实施例中，左连接边1的左侧壁和右连接边2的右侧壁均是用于与侧板连接，在左连接边1的左侧壁和右连接边2的右侧壁设有胶水，左连接边1的左侧壁和右连接边2的右侧壁分别通过胶水粘贴于侧板。
在本实施例中，电芯隔离套具有下连接边3，下连接边3的左端与左连接边1的下端连接，下连接边3的右端与右连接边2的下端连接，在下连接边3的左端与左连接边1的下端的连接处形成左包角4，在下连接边3的右端与右连接边2的下端的连接处形成右包角5，左包角4设有第一通孔41, 右包角5设有第二通孔51。左连接边1的左侧壁和右连接边2的右侧壁的胶水向下流，分别流到左包角4和右包角5，从而胶水进入第一通孔41和第二通孔51，使电芯与左包角4、右包角5粘合，并且在左包角4、右包角5形成密封结构，具有以下效果：1、阻断水珠蔓延的路径。2、电池模组在后面工作过程中，避免电芯底角处的蓝膜会与电芯隔离套进行摩擦，从而降低电芯底角处的蓝膜破裂的可能性。3、当电芯在底角处出现破裂后，可以防止漏液的情况发生。
在本实施例中，下连接边3设有第三通孔31。第三通孔31能够将电芯底部的水珠排出。第三通孔31在电芯底部阻断结露水珠的蔓延，当结露水珠聚集到电芯隔离套底部第三通孔31处时，结露水珠就会掉入第三通孔31，从而排出电池模组。
在本实施例中，电芯隔离套具有上连接边6，上连接边6的左端与左连接边1的上端连接，下连接边3的右端与右连接边2的上端连接，上连接边6的下侧壁设有上隔板61，上隔板61将电芯隔离套中空间隔分为电芯安装空间和电芯堆叠空间。电芯安装空间是用于安装一个电芯，电芯堆叠空间是用于在堆叠时与另一个电芯抵接。
在本实施例中，第一竖条孔11分别与电芯安装空间和电芯堆叠空间连通，第二竖条孔21分别与电芯安装空间和电芯堆叠空间连通。第一竖条孔11既与电芯安装空间连通，又与电芯堆叠空间连通，第二竖条孔21既与电芯安装空间连通，又与电芯堆叠空间连通，在电芯安装空间安装的电芯和在电芯堆叠空间堆叠的电芯均可以通过第一竖条孔11或/和第二竖条孔21聚集水珠。
在本实施例中，下连接边3的上侧壁设有下隔板，下隔板与上隔板61上下对应。为了进一步隔分电芯安装空间和电芯堆叠空间。
在本实施例中，上隔板61的内外侧壁均设有密封条7。在上隔板61的内外侧壁均设有双面胶或胶水，上隔板61的内外侧壁通过双面胶或胶水粘贴密封条7。密封条7将安装在电芯隔离套内的电芯以密封条7为界分成导电区和绝缘区。密封条7与上连接边6的距离为0.5 mm至15mm。
密封条7的厚度为0.5 mm至5mm，在其背面贴有双面胶，利用双面的粘性使其固定在电芯隔离套上，然后利用密封条7的可压缩性能，电芯隔离套正面的密封条7利用电芯和电芯隔离套固定时的压力，使得电芯隔离套正面的密封条7压缩贴近电芯进行密封；电芯隔离套背面的密封条7利用电芯与电芯隔离套之间堆叠时的压力，使得密封条7压缩贴近电芯进行密封；这样就可以形成一个以密封条7为界，将堆叠成组的电池模组分成导电区和绝缘区，密封条7以上为导电区，密封条7以下为绝缘区。
在本实施例中，密封条7是由绝缘可压缩材料形成，可以是橡胶条，也可以是泡棉。
在一些实施例中，上隔板61的内外侧壁均设有凹槽，在凹槽中设有密封条7。将密封条7粘贴在凹槽中，凹槽对密封条7具有一定的固定作用。
如图2所示，在一些实施例中，在左连接边1和右连接边2均设有缺口9，缺口9用于对密封条7进行定位固定。
如图3所示，在一些实施例中，上隔板61的内外侧壁均设有密封条7，密封条7的两端设有折叠块71。一个折叠块与左连接边1的右侧壁连接，另一折叠块71与右连接边2的左侧壁连接，连接方式可以是通过双面胶或者胶水粘贴。
如图3所示，在一些实施例中，上隔板61的内外侧壁均设有密封条7，上隔板61的内外侧壁均设有定位孔611，密封条7的一侧壁设有与定位孔611相配合的凸起。
在一些实施例中，密封条7与电芯隔离套一体成型。
在一些实施例中，密封条7为长条圈状，密封条7利用弹性变形套于电芯隔离套上，且密封条7位于上隔板61上。
在本实施例中，左包角4设有第一凸块，第一凸块位于第一通孔41中，右包角5设有第二凸块52，第二凸块52位于第二通孔51中。第一凸块和第二凸块52具有阻挡胶水的作用，使胶水在第一通孔41和第二通孔51停留。
本发明还提供一种电池模组，包括至少两个电芯，每两个电芯之间设有如上述的电芯隔离套。
如图4和图5所示，在本实施例中，电池模组还包括上盖8，上盖8设于至少两个电芯上，上盖8的下侧壁设有左右并列的两列加强筋，每列加强筋包括多条加强筋81，每两条加强筋81之间设有泡棉82。泡棉82能够防止出现毛细现象，将结露水珠通过上盖8蔓延至侧板、端板等金属件。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包括在本发明的保护范围之内。

Claims (10)

  1. 一种电芯隔离套，其特征在于，所述电芯隔离套用于设于两个电芯之间，所述电芯隔离套具有左连接边和右连接边，所述左连接边设有第一竖条孔，所述右连接边设有第二竖条孔。
  2. 根据权利要求1所述的电芯隔离套，其特征在于，所述电芯隔离套具有下连接边，所述下连接边的左端与所述左连接边的下端连接，所述下连接边的右端与所述右连接边的下端连接，在所述下连接边的左端与所述左连接边的下端的连接处形成左包角，在所述下连接边的右端与所述右连接边的下端的连接处形成右包角，所述左包角设有第一通孔, 所述右包角设有第二通孔。
  3. 根据权利要求2所述的电芯隔离套，其特征在于，所述下连接边设有第三通孔。
  4. 根据权利要求2所述的电芯隔离套，其特征在于，所述电芯隔离套具有上连接边，所述上连接边的左端与所述左连接边的上端连接，所述下连接边的右端与所述右连接边的上端连接，所述上连接边的下侧壁设有上隔板，所述上隔板将所述电芯隔离套中空间隔分为电芯安装空间和电芯堆叠空间。
  5. 根据权利要求4所述的电芯隔离套，其特征在于，所述第一竖条孔分别与所述电芯安装空间和所述电芯堆叠空间连通，所述第二竖条孔分别与所述电芯安装空间和所述电芯堆叠空间连通。
  6. 根据权利要求4所述的电芯隔离套，其特征在于，所述下连接边的上侧壁设有下隔板，所述下隔板与所述上隔板上下对应。
  7. 根据权利要求4所述的电芯隔离套，其特征在于，所述上隔板的内外侧壁均设有密封条。
  8. 根据权利要求2所述的电芯隔离套，其特征在于，所述左包角设有第一凸块，所述第一凸块位于所述第一通孔中，所述右包角设有第二凸块，所述第二凸块位于所述第二通孔中。
  9. 一种电池模组，其特征在于，包括至少两个电芯，每两个电芯之间设有如权利要求1至8任一所述的电芯隔离套。
  10. 根据权利要求9所述的电芯隔离套，其特征在于，所述电池模组还包括上盖，所述上盖设于所述至少两个电芯上，所述上盖的下侧壁设有左右并列的两列加强筋，每列加强筋包括多条加强筋，每两条加强筋之间设有泡棉。
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