WO2007093091A1 - An apparatus for detecting sealability of a lithium ion cell - Google Patents

An apparatus for detecting sealability of a lithium ion cell Download PDF

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Publication number
WO2007093091A1
WO2007093091A1 PCT/CN2006/002099 CN2006002099W WO2007093091A1 WO 2007093091 A1 WO2007093091 A1 WO 2007093091A1 CN 2006002099 W CN2006002099 W CN 2006002099W WO 2007093091 A1 WO2007093091 A1 WO 2007093091A1
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WO
WIPO (PCT)
Prior art keywords
lithium ion
ion battery
container
detecting
pressure gas
Prior art date
Application number
PCT/CN2006/002099
Other languages
English (en)
French (fr)
Inventor
Junfeng Zhao
Original Assignee
Shenzhen Bak Battery Co., Ltd.
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 Shenzhen Bak Battery Co., Ltd. filed Critical Shenzhen Bak Battery Co., Ltd.
Priority to EP06775417A priority Critical patent/EP2003435B1/en
Priority to JP2008554576A priority patent/JP2009527080A/ja
Priority to US12/279,422 priority patent/US7950272B2/en
Priority to KR1020087022510A priority patent/KR101225293B1/ko
Publication of WO2007093091A1 publication Critical patent/WO2007093091A1/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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
    • H01M6/5083—Testing apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/38—Investigating fluid-tightness of structures by using light
    • 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
    • H01M10/4228—Leak testing of 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4285—Testing apparatus
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
    • 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

Definitions

  • the present invention relates to a device for detecting the performance of a battery, and more particularly to a device for detecting the tightness of a lithium ion battery.
  • Lithium-ion batteries are widely used in notebook computers, video cameras, digital cameras, personal digital assistants (PDAs), mobile communication terminal products, and power tools, and have many specifications, wide applications, and large demands.
  • lithium-ion batteries are also used in harsh environments such as the Arctic and the scientific sciences, mountaineering expeditions, etc., where the temperature is extremely low, the air pressure is thin, and the power drive of high-power discharge.
  • One of the detecting devices is for holding the liquid in the detecting bottle, and the detecting tube and the exhausting pipe are inserted into the bottle P of the measuring bottle, and the bottom end of the detecting tube is inserted into the liquid and inserted into the liquid filling hole of the lithium ion battery.
  • a cylindrical type power battery detects 0.05 micrometers when there is a slight leak in the welding of the upper cover plate, the lower cover plate and the lithium ion battery cylinder. Under measurement, it takes about 5 minutes
  • Another detecting device comprises a container containing a detecting liquid, a clamp and a high-pressure gas connecting device, which can clamp and place the lithium ion battery to be tested in the container and the end of the high-pressure gas mountain connecting device and the to-be-tested
  • the liquid injection hole of the lithium ion battery is connected, and the other is connected to the high pressure gas source.
  • the lithium ion battery to be tested is immersed in the detection liquid of the container, and then the inside of the lithium ion battery is filled with high pressure gas for several seconds to observe whether the detection liquid in the container is inside. Bubbles appear, and if bubbles appear, it means that the lithium ion battery is not tight enough. On the contrary, the lithium ion battery has good sealing performance.
  • the detection speed of the detection device is faster than the detection speed of the first detection device.
  • the subsequent injection process is not affected, and the lithium ion battery to be tested is placed in the container. After that, the detection liquid can be injected into the container, and after the detection is completed, the detection liquid in the container must be discharged before the lithium ion battery can be taken out, and the operation thereof is complicated, and the work efficiency needs to be further improved.
  • the technical problem to be solved by the present invention is to provide a lithium ion battery sealing property detecting device which is simple in operation and can quickly pick up and discharge a lithium ion battery.
  • the technical solution adopted by the present invention is: Providing a lithium ion battery sealing property detecting device, comprising: a container containing a detecting liquid, capable of sandwiching and placing a lithium ion battery to be tested; The clamp in the container is connected with a high-pressure gas connection device, one end of the high-pressure gas connection device is connected to the liquid injection hole of the lithium ion battery to be tested, and the other is connected to the gas source, and the detection device further includes a lifting device for controlling the jig to remove or immerse a lithium ion battery in the detection liquid in the container
  • the lifting device includes a movable bracket and a power source that drives the movement of the bracket, and the clamp is fixed to the bracket.
  • the power source is fixed to a support plate, and the bracket and the support plate cooperate with the guide groove through the guide rail.
  • the open end of the container is provided with a container lid on which a through hole for the jig is inserted.
  • the container is a transparent container placed on a bottom plate, and a rotary table for controlling the rotation of the container is disposed below the bottom plate.
  • a lighting device is disposed outside the container.
  • the clamp includes a base and a connecting member located above the base, a spring seat, a magazine, and a sealing member.
  • the connecting member protrudes from one end of the spring seat and is connected to a power source.
  • the two ends of the spring seat are respectively abutted against the connecting member and the sealing member.
  • the sealing member is slidably connected to the spring seat, and a space for sandwiching the lithium ion battery to be tested is provided between the sealing member and the base.
  • the high-pressure gas connection device is opened inside the seal of the clamp The passage for the gas to flow, the passage connecting the injection hole of the lithium ion battery to be tested and the high pressure gas source.
  • the bottom end of the seal is provided with a seal ring.
  • the power source is a cylinder, a motor or a pneumatic motor.
  • the invention adopts a lifting device to control the clamp to remove or immerse the lithium ion battery in the detecting liquid, and does not need to repeatedly inject/discharge the detecting liquid into the container, thereby making the lithium ion battery pick-and-place very convenient, and also saving time and making work efficiency improve.
  • the spring seat of the jig of the present invention and the spring and the seal provided therein facilitate the fixing and sealing of the lithium ion battery, and the lithium ion battery can be quickly clamped by controlling the cylinder, so that the work efficiency is further improved.
  • Fig. 1 is a schematic view of a preferred embodiment of the invention.
  • Figure 2 is a schematic illustration of the embodiment of Figure 1 in another state.
  • Fig. 3 is a cross-sectional view showing the state in which the jig of Fig. 1 is placed with a battery. detailed description
  • the lithium ion battery sealability detecting device comprises a container 1, a clamp 2, a high pressure gas connecting device and a lifting device 3.
  • the container 1 is filled with the detection liquid; the clamp 2 is used for sandwiching and placing the lithium ion battery 100 to be tested in the container 1; one end of the high pressure gas connection device and the liquid injection hole of the lithium ion battery 100 to be tested The other end is connected to a high-pressure gas source (not shown); the lifting device 3 is used to control the jig 2 to remove or immerse the lithium ion battery 100 in the detection liquid in the container 1.
  • the lifting device 3 includes a movable bracket 32 and a cylinder 34 for driving the bracket 32, and the clamp 2 is fixed to the bracket 32.
  • the cylinder 34 is fixed on a support plate 4, and the guide plate 4 is provided with a guide rail 42.
  • the bracket 32 is provided with a rail groove (not shown) that cooperates with the guide rail 42, so that the bracket 32 can be along the support plate. 4 smoothly moving up and down, of course, the position of the above-mentioned guide rail and the guide rail groove can be interchanged, that is, the guide rail is disposed on the bracket 32, and the guide rail slot is disposed on the support plate 4.
  • the container end 1 is provided with a container lid 1 2, and a through hole (not shown) through which the jig 2 is passed is formed in the container lid 12 to prevent the detection liquid in the container 1 from evaporating.
  • the container 1 is a transparent container. In the present embodiment, the container 1 is a glass beaker.
  • the bottom plate 5 is fixedly connected to the support plate 4 for convenience of observation, and a rotary table 6 is disposed below the bottom plate 5, which can control the bottom plate 5, the support plate 4, the container 1, the clamp 2 and the lifting
  • the device 3 is rotated in the same manner, and a lighting device 7 is further provided outside the container 1.
  • the clamp 2 includes a base 21 and a connecting member 22, a spring seat 23, a spring 24, and a sealing member 25 located above the base 21.
  • the connecting member 22 protrudes from one end of the spring seat 23 and is connected to a cylinder 8.
  • the spring 24 is located in the spring seat 23, and its two ends abut against the connecting member 22 and the sealing member 25, respectively.
  • the sealing member 25 and the spring seat 23 are slidably connected by the positioning pin 26, and have a receiving space between the sealing member 25 and the base 21 for the lithium ion battery 100 to be tested.
  • a passage 252 for gas flow is also provided inside the seal 25, and the passage 252 connects the injection hole of the lithium ion battery 100 to be tested and the high pressure gas source.
  • a groove is formed in the bottom end of the sealing member 25, and a sealing ring 27 is disposed in the groove to increase the sealing property during the detection.
  • the sealing ring 27 is a 0-ring.
  • the bracket 32 When the sealing device of the lithium ion battery is detected by the above detecting device, first, the bracket 32 is driven by the power source 34 to move upward to a certain height; and the lithium ion battery 100 to be tested which is not injected is mounted on the jig 2, The cylinder 8 compresses the spring 24 through the connecting member 22, causing the spring 24 to press the sealing member 25, thereby moving the sealing member 25 downward, thereby pressing the lithium ion battery 100; then, driving the bracket 32 downward through the cylinder 34 to a certain distance, The lithium ion battery 100 is completely immersed in the detection liquid of the container 1; the high pressure gas source is filled with the dry gas above the atmospheric pressure into the lithium ion battery 100 through the passage 252 in the sealing member 25; for a few seconds, the worker can rotate the bottom plate 5 Thoroughly observe the detection liquid in the container 1 to observe whether bubbles appear in the container; after the detection is completed, the bracket 32 is driven to move upward by the cylinder 34 for a distance, so that the lithium ion battery
  • the cylinders 34, 8 may also be existing power sources for powering such as motors and air motors. Industrial applicability
  • the invention adopts the lifting device 3 to control the clamp 2 to remove or immerse the lithium ion battery 100 into the detection liquid, and does not need to repeatedly inject/discharge the detection liquid to the container .1, so that the lithium ion battery 100 is conveniently taken and discharged, and also saves time. , to improve work efficiency.
  • the spring seat 23 of the jig 2 of the present invention and the spring 24 and the seal member 25 disposed therein The lithium ion battery 100 is easily fixed and sealed, and the lithium ion battery 100 can be quickly clamped by controlling the cylinder 8, so that the working efficiency is further improved.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Secondary Cells (AREA)
  • Filling, Topping-Up Batteries (AREA)

Description

锂离子电池密封性检 3 装置 技术领域
本发明涉及一种电池性能的捡测装置， 尤其涉及一种锂离子电池 密封性检测装置。 背景技术 锂离子电池被广泛应用于笔记本电脑、 摄像机、 数码相机、 个人 数字助理（ PDA )、移动通讯终端产品及电动工具等产品上， 其规格多、 应用广、 需求量大。 另外， 锂离子电池还被应用于南北极科学考 、 登山探险等温度极低、 气压稀薄的苛刻环境中， 以及高功率放电的动 力驱动等。
、/- 用于恶劣条件的特种电池， 对其密封性的要求很高， ， 业界 采用两种装置检测锂离子电池的密封性
其中一种检测装置是在检测瓶内盛装液体， 于捡测瓶的瓶 P插设 有检测管及抽气管， 检测管的底端插置于液体中 于锂离子电池的注 液孔处插设有针头， 该针头通过密封件与锂离子电池相连通 针头的 一端通过导气管与检测瓶上的检测管连接。
检测时 ， 抽气管抽气数秒后， 看检测管是否 有气泡连续冒出， 若冒出气泡 则表示锂离子电池的密封性不够， 反之， 则锂离子电池 密封性良好
这种检测装置的检测速度较慢， 精确度不够 ， 例如， 某种圆柱型 动力电池， 在检测其上盖板、 下盖板与锂离子电池筒体焊接处是否存 在微漏时， 在 0.05 Mpa下测量， 需要 5 分钟左右
另一种检测装置包括盛装有检测液的容器、 夹具以及高压气连接 装置， 该夹具可将待测的锂离子电池夹置并放置于容器内 该高压气 山 连接装置的 ―端与待测的锂离子电池的注液孔相连通， 其另 与高 压气源相连
检测时 将待测的锂离子电池浸没于容器的检测液中 ， 然后向锂 离子电池内部充入高压气体， 持续几秒 ， 观察容器中的检测液内是否 出现气泡， 若出现气泡， 表示锂离子电池密封性不够， 反之， 则锂离 子电池密封性良好。
这种检测装置的检测速度相较于前述第一种检测装置的检测速 度快， 然而， 为了保持锂离子电池内部干燥， 不影响后续的注液过程， 将待测的锂离子电池放置于容器内后， 才可向容器内注入检测液， 而 检测完毕后， 需先将容器中的检测液排出才可取出锂离子电池， 其操 作较显复杂， 工作效率仍有待进一步提高。 发明内容
本发明所要解决的技术问题在于提供一种锂离子电池密封性检 测装置 ， 其操作简单， 能快速地取放锂离子电池。
为解决上述技术问题， 本发明所釆用的技术方案是： 提供一种锂 离子电池密封性检测装置， 其包括盛装有检测液的容器、 可将待测的 锂离子电池夹置并放置于所述容器内 的夹具以'及高压气连接装置， 所 述高压气连接装置的一端与待测的锂离子电池的注液孔相连通， 其另 一 与 压气源相连， 所述检测装置还包括控制所述夹具将锂离子电 池移出或浸入所述容器内检测液中的升降装置
更具体地， 所述升降装置包括可移动的支架及驱动所述支架移动 的动力源 ， 所述夹具固定于所述支架上。
更具体地， 所述动力源固定于一支撑板上 ， 所述支架与所述支撑 板通过导轨与导轨槽相配合。
更具体地， 所述容器的开口端设置有一容器盖， 于容器盖上开设 有供所述夹具穿过的通孔。
更具体地， 所述容器为透明容器， 其放置于一底板上， 于所述底 板下方设置有控制所述容器旋转的旋转台。
更具体地， 所述容器外设置有照明装置。
更具体地， 所述夹具包括底座及位于底座上方的连接件、 弹簧座、 弹黉、 密封件， 所述连接件突伸于弹簧座的一端， 并与一动力源相连 接， 所述弹簧位于弹簧座内， 其两端分别抵顶于连接件与密封件， 所 述密封件与弹簧座滑动连接， 密封件与底座之间具有用于夹置待测锂 离子电池的空间。
更具体地， 所述高压气连接装置是在所述夹具的密封件内部开设 的供气体流通的通道， 该通道连接待测的锂离子电池的注液孔与高压 气源。
更具体地， 所述密封件的底端设置有密封圈。
更具体地， 所述动力源是气缸、 电机或气动马达。
本发明采用升降装置来控制夹具将锂离子电池移出或浸入检测 液， 无需反复向容器注入 /排出检测液， 从而使得锂离子电池的取放十 分方便， 同时也节省了时间， 使工作效率有所提高。 另外， 本发明的 夹具的弹簧座及其内部设置的弹簧与密封件方便了锂离子电池的固 定及密封， 通过控制气缸就能快速地夹紧锂离子电池， 使工作效率进 一步提髙。 ， 附图说明
下面结合附图和具体实施方式对本发明作进一步的详细说明： 图 1是本发明一较佳实施方式的示意图。
图 2是图 1所述实施方式处于另一状态的示意图。
图 3是图 1中夹具夹置电池时的剖视示意图。 具体实施方式
请参阅图 1 及图 2， 是本发明的一较佳实施方式， 该锂离子电池 密封性检测装置包括容器 1、 夹具 2、 高压气连接装置及升降装置 3。 于容器 1 内盛装有检测液； 夹具 2用于将待测的锂离子电池 1 00夹置 并放置于容器 1 内 ； 高压气连接装置的一端与待测的锂离子电池 1 00 的注液孔相连通， 其另一端与高压气源 （图中未示出 ） 相连； 升降装 置 3用于控制夹具 2将锂离子电池 1 00移出或浸入容器 1 内检测液中 。
上述升降装置 3 包括可移动的支架 32及驱动支架 32移动的气缸 34 , 夹具 2 固定于支架 32上。 该气缸 34 固定于一支撑板 4上， 于支 撑板 4上设置有导轨 42， 于支架 3 2上设置有与导轨 42配合的导轨槽 (图中未示出 ） ， 从而支架 32可沿支撑板 4平稳地上下运动， 当然， 上述导轨与导轨槽的位置可以互换， 即将导轨设置于支架 32 上， 而 将导轨槽设置于支撑板 4上。
上述容器 1 的幵口端设置有一容器盖 1 2， 于容器盖 1 2 上开设有 供夹具 2 穿过的通孔 （ 图中未标号） ， 从而可防止容器 1 内的检测液 挥发。 该容器 1 为透明容器， 在本实施方式中， 容器 1 为玻璃烧杯， 其放置于一底板 5 上， 为了便于观测， 该底板 5 与上述支撑板 4 固定 连接， 于底板 5 下方设置有一旋转台 6， 其可控制底板 5、 支撑板 4、 容器 1、 夹具 2 及升降装置 3 —同旋转， 另外， 在容器 1 外还设置有 照明装置 7。
请一同参阅图 3， 上述夹具 2包括底座 21 及位于底座 21 上方的 连接件 22、 弹簧座 23、 弹簧 24、 密封件 25。 连接件 22 突伸于弹簧 座 23 的一端， 并与一气缸 8 相连接。 弹簧 24 位于弹簧座 23 内 ， 其 两端分别抵顶于连接件 22 与密封件 25。 密封件 25 与弹簧座 23 通过 定位销 26 滑动连接， 于密封件 25 与底座 21 之间具有容置空间， 以 供待测的锂离子电池 100 放置。 在密封件 25 内部还开设有供气体流 通的通道 252， 该通道 252 连接待测的锂离子电池 100 的注液孔与高 压气源。 于密封件 25 的底端开设有凹槽， 于凹槽内设置有密封圈 27， 以增加检测时的密封性， 在本实施方式中， 该密封圈 27 为 0 形圈。
采用上述检测装置检测锂离子电池的密封性时， 首先， 通过动力 源 34 驱动支架 32， 使其向上运动到一定高度； 将未注液的待测的锂 离子电池 100 安装在夹具 2上， 由气缸 8 通过连接件 22压缩弹簧 24， 使弹簧 24挤压密封件 25， 进而使密封件 25 向下运动， 从而压紧锂离 子电池 100; 然后， 通过气缸 34 驱动支架 32 向下运动一定距离， 使 锂离子电池 100完全浸没于容器 1 的检测液中； 高压气源通过密封件 25 内的通道 252 向锂离子电池 100 内充入高于大气压的干燥气体； 持 续几秒， 工作人员可转动底板 5对容器 1 中的检测液进行全面观察， 观察其内是否出现气泡； 检测完毕后， 通过气缸 34驱动支架 32 向上 运动一段距离， 使锂离子电池 100从检测液中完全移出后， 将检测完 毕的锂离子电池 100从夹具 2上取下即可。
上述气缸 34、 8 还可以是电机、 气动马达等现有的提供动力的动 力源。 工业应用性
本发明采用升降装置 3来控制夹具 2将锂离子电池 100移出或浸 入检测液， 无需反复向容器.1 注入 /排出检测液， 从而使得锂离子电池 100 的取放十分方便， 同时也节省了时间， 使工作效率有所提髙。 另 外， 本发明的夹具 2 的弹簧座 23 及其内部设置的弹簧 24与密封件 25 方便了锂离子电池 100 的固定及密封， 通过控制气缸 8 就能快速地夹 紧锂离子电池 100, 使工作效率进一歩提高。

Claims

权利要求
1、 一种锂离子电池密封性检测装置， 包括盛装有检测液的容器、 可将待测的锂离子电池夹置并放置于所述容器内 的夹具以及髙压气 连接装置， 所述高压气连接装置的一端与待测的锂离子电池的注液孔 相连通， 其另一端与高压气源相连， 其特征在于： 所述检测装置还包 括控制所述夹具将锂离子电池移出或浸入所述容器内检测液中 的升 降装置。
2、 如权利要求 1 所述的锂离子电池密封性检测装置， 其特征在 于： 所述升降装置包括可移动的支架及驱动所述支架移动的动力源， 所述夹具固定于所述支架上。
3、 如权利要求 2 所述的锂离子电池密封性检测装置， 其特征在 于： 所述动力源固定于一支撑板上， 所述支架与所述支撑板通过导轨 与导轨槽相配合。
4、 如权利要求 1、 2或 3 所述的锂离子电池密封性检测装置， 其 特征在于： 所述容器的开口端设置有一容器盖， 于容器盖上开设有供 所述夹具穿过的通孔。
5、 如权利要求 1、 2或 3 所述的锂离子电池密封性检测装置， 其 特征在于： 所述容器为透明容器， 其放置于一底板上， 于所述底板下 方设置有控制所述容器旋转的旋转台。
6、 如权利要求 5 所述的锂离子电池密封性检测装置， 其特征在 于： 所述容器外设置有照明装置。
7、 如权利要求 1、 2或 3 所述的锂离子电池密封性检测装置， 其 特征在于： 所述夹具包括底座及位于底座上方的连接件、 弹簧座、 弹 簧、 密封件， 所述连接件突伸于弹簧座的一端， 并与一动力源相连接， 所述弹簧位于弹簧座内， 其两 分别抵顶于连接件与密封件， 所述密 封件与弹簧座滑动连接， 密封件与底座之间具有用于夹置待测锂离子 电池的空间。
8、 如权利要求 7 所述的锂离子电池密封性检测装置， 其特征在 于： 所述高压气连接装置是在所述夹具的密封件内部开设的供气体流 通的通道， 该通道连接待测的锂离子电池的注液孔与高压气源。
9、 如权利要求 8 所述的锂离子电池密封性检测装置， 其特征在 于： 所述密封件的底端设置有密封圈。
1 0、 如权利要求 7所述的锂离子电池密封性检测装置， 其特征在 于： 所述动力源是气缸、 电机或气动马达。 .
PCT/CN2006/002099 2006-02-14 2006-08-17 An apparatus for detecting sealability of a lithium ion cell WO2007093091A1 (en)

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