CN220455366U - Battery test fixture - Google Patents
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- CN220455366U CN220455366U CN202321696120.0U CN202321696120U CN220455366U CN 220455366 U CN220455366 U CN 220455366U CN 202321696120 U CN202321696120 U CN 202321696120U CN 220455366 U CN220455366 U CN 220455366U
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- 238000012360 testing method Methods 0.000 title claims abstract description 24
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 19
- 238000000034 method Methods 0.000 description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
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Abstract
Description
技术领域Technical field
本实用新型涉及技术领域,尤其涉及一种电池测试夹具。The utility model relates to the technical field, in particular to a battery testing fixture.
背景技术Background technique
近年来,便携式电子产品、新能源汽车、智能电网、分布式储能、物联网等快速发展,不断对锂离子电池各项性能提出更高要求,其中电池能量密度的提升最为迫切。因此开发出具有高能量密度、高安全性和长循环寿命的锂离子电池成为当今储能领域的研究热点。In recent years, the rapid development of portable electronic products, new energy vehicles, smart grids, distributed energy storage, and the Internet of Things has continuously put forward higher requirements for the performance of lithium-ion batteries, among which the improvement of battery energy density is the most urgent. Therefore, the development of lithium-ion batteries with high energy density, high safety and long cycle life has become a research hotspot in the field of energy storage today.
锂离子电池在化成过程中,负极SEI膜的形成会消耗大量活性锂,导致电池首周库仑效率和电池容量低。补充活性锂是解决这一问题的有效手段。补锂的意义有:增加电池首周可逆容量,增加实际电池能量密度;实现负极材料体积的预膨胀,减少材料颗粒在嵌锂过程中的破裂和极化,提升负极的机械稳定性和循环性;某些补锂技术可形成人造SEI膜,因而可取代电池的化成步骤等。During the formation process of lithium-ion batteries, the formation of the SEI film on the negative electrode consumes a large amount of active lithium, resulting in low Coulombic efficiency and battery capacity in the first week of the battery. Supplementing active lithium is an effective means to solve this problem. The significance of lithium supplementation is: to increase the reversible capacity of the battery in the first week and increase the actual battery energy density; to achieve pre-expansion of the volume of the negative electrode material, to reduce the rupture and polarization of material particles during the lithium insertion process, and to improve the mechanical stability and cyclability of the negative electrode. ; Certain lithium supplementation technologies can form artificial SEI films, thus replacing the battery formation steps, etc.
近年来研究人员研发出了各种方法的补锂技术,其中包括原位掺杂预锂、接触预锂、电化学预锂和化学预锂等多种预锂方式。其中电化学预锂化法是一种最直接的解决锂离子负极材料ICE低的方法,也是最有希望能够实现商业化的一种预锂方式。In recent years, researchers have developed various methods of lithium replenishment technology, including in-situ doping pre-lithium, contact pre-lithium, electrochemical pre-lithium and chemical pre-lithium and other pre-lithium methods. Among them, the electrochemical prelithiation method is the most direct method to solve the problem of low ICE of lithium-ion anode materials, and it is also the most promising way to achieve commercialization.
目前在电化学预锂中大都还在实验探索阶段,对于不同规格型号的电芯预锂基本也都在进行实验试制,基本市面上暂时并没有补锂的产品面世。进行多规格型号电芯的预锂测试中需要使用大量的不同规格的夹具,夹具多,拆装麻烦。因此亟需一种可以适应不同规格电芯、帮助预锂电芯进行数据测试的夹具。At present, most of the electrochemical pre-lithium is still in the experimental exploration stage, and pre-lithium batteries of different specifications and models are basically undergoing experimental trial production. Basically, there are no lithium supplement products on the market for the time being. Pre-lithium testing of batteries of multiple specifications requires the use of a large number of fixtures of different specifications. There are many fixtures and it is troublesome to disassemble and assemble. Therefore, there is an urgent need for a fixture that can adapt to batteries of different specifications and help pre-lithium batteries perform data testing.
实用新型内容Utility model content
为解决背景技术中存在的技术问题,本实用新型提出一种电池测试夹具。In order to solve the technical problems existing in the background technology, the present utility model proposes a battery testing fixture.
本实用新型提出的一种电池测试夹具,包括底座,所述底座上设有第一夹紧板和第二夹紧板,所述第一夹紧板和所述第二夹紧板用于对电池进行夹紧,所述第一夹紧板和所述第二夹紧板之间的距离可调;The utility model proposes a battery test fixture, which includes a base. The base is provided with a first clamping plate and a second clamping plate. The first clamping plate and the second clamping plate are used for testing The battery is clamped, and the distance between the first clamping plate and the second clamping plate is adjustable;
所述底座上还是何有导电连接件,所述导电连接件用于对电池的极耳接触;There are also conductive connectors on the base, and the conductive connectors are used to contact the tabs of the battery;
所述导电连接件相对所述第一夹紧板和所述第二夹紧板的位置可调。The position of the conductive connecting piece relative to the first clamping plate and the second clamping plate is adjustable.
在锂离子电池电化学预锂的测试过程中应用上述夹具,首先将电池固定在第一夹紧板和第二夹紧板之间,然后移动导电连接件使导电连接件与电池的极耳接触,然后进行化成、分容、循环等一系列数据测试,通过调节第一夹紧板和第二夹紧板的距离使该夹紧便于对不同型号的电池进行固定,通过调节导电连接件相对第一夹紧板、第二夹紧板的位置进而使该导电连接件适应对不同型号的电池的极片的连接,且通过该夹具的设置便于拆装和连接,且便于对不同型号的电池的检测。The above clamp is used during the electrochemical pre-lithium test of lithium-ion batteries. First, the battery is fixed between the first clamping plate and the second clamping plate, and then the conductive connector is moved to make the conductive connector contact the tab of the battery. , and then conduct a series of data tests such as formation, volume division, and circulation. By adjusting the distance between the first clamping plate and the second clamping plate, the clamping is convenient for fixing different types of batteries. By adjusting the relative position of the conductive connector to the third The positions of the first clamping plate and the second clamping plate enable the conductive connector to adapt to the connection of pole pieces of batteries of different types, and the setting of the clamp facilitates disassembly, assembly and connection, and facilitates the connection of batteries of different types. detection.
优选地,所述导电连接件在所述底座上的竖直方向位置、横向位置和纵向位置至少有一种位置是可以调的。Preferably, at least one of the vertical position, transverse position and longitudinal position of the conductive connecting member on the base is adjustable.
优选地,所述导电连接件安装在移动架上,所述移动架安装在所述底座上。Preferably, the conductive connector is installed on a movable frame, and the movable frame is installed on the base.
优选地,所述移动架在所述底座上竖直方向的位置可调。Preferably, the vertical position of the mobile frame on the base is adjustable.
优选地,还包括调节杆,所述调节杆安装在所述移动架上,所述导电连接件安装在所述调节杆上,所述调节杆在所述移动架上的纵向位置可调,纵向即在三坐标系中为X轴方向。Preferably, it also includes an adjusting rod, the adjusting rod is installed on the moving frame, the conductive connector is installed on the adjusting rod, the longitudinal position of the adjusting rod on the moving frame is adjustable, and the longitudinal position of the adjusting rod on the moving frame is adjustable. That is, it is the X-axis direction in the three-dimensional coordinate system.
优选地,该导电连接件横向滑动连接在所述调节杆上,进而便于对不同型号的电池的连接,横向位置即在三坐标系中为Y轴方向位置。Preferably, the conductive connector is laterally slidably connected to the adjustment rod, thereby facilitating the connection of batteries of different types. The lateral position is the Y-axis position in the three-dimensional coordinate system.
优选地,还包括升降机构,所述升降机构安装在所述底座上并用于带动所述移动架在竖直方向移动。Preferably, it also includes a lifting mechanism, which is installed on the base and used to drive the mobile frame to move in the vertical direction.
优选地,还包括距离检测件,所述距离检测件用于检测所述移动架相对所述第一夹紧板或所述第二夹紧板在竖直方向的高度。Preferably, a distance detection component is further included, and the distance detection component is used to detect the vertical height of the movable frame relative to the first clamping plate or the second clamping plate.
优选地,所述导电连接件为极耳夹。Preferably, the conductive connecting member is a pole lug clip.
优选地,所述第一夹紧板固定在所述底座上,所述第二夹紧板横向滑动安装在所述底座上,还包括移动机构,所述移动机构安装在所述底座上并用于带动所述第二夹紧板在所述底座上横向移动。Preferably, the first clamping plate is fixed on the base, the second clamping plate is laterally slidably installed on the base, and further includes a moving mechanism, the moving mechanism is installed on the base and used for The second clamping plate is driven to move laterally on the base.
本实用新型中,所提出的电池测试夹具,结构简单,通过调节导电连接件相对第一夹紧板、第二夹紧板的位置进而使该导电连接件适应对不同型号的电池的极片的连接,且通过该夹具的设置便于拆装和连接,且便于对不同型号的电池的检测。In the present utility model, the proposed battery test fixture has a simple structure. By adjusting the position of the conductive connector relative to the first clamping plate and the second clamping plate, the conductive connector can be adapted to the pole pieces of different types of batteries. connection, and the setting of the clamp facilitates disassembly, assembly and connection, and facilitates the detection of batteries of different types.
本实用新型的附加方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本实用新型的实践了解到。Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
附图说明Description of drawings
图1为本实用新型结构示意图;Figure 1 is a schematic structural diagram of the utility model;
图2为本实用新型一些实施例中移动架与底座的安装示意图;Figure 2 is a schematic diagram of the installation of the mobile frame and the base in some embodiments of the present invention;
图3为本实用新型中一些实施例中第一夹紧板结构示意图;Figure 3 is a schematic structural diagram of the first clamping plate in some embodiments of the present utility model;
图中:1、底座;2、第一夹紧板;3、第二夹紧板;4、导电连接件;5、移动架;6、升降机构;7、调节杆;8、限位板;9、移动机构。In the picture: 1. Base; 2. First clamping plate; 3. Second clamping plate; 4. Conductive connector; 5. Moving frame; 6. Lifting mechanism; 7. Adjustment rod; 8. Limiting plate; 9. Mobile mechanism.
具体实施方式Detailed ways
下面详细描述本实用新型的实施例,所述实施例的示例在附图中表示,其中自始至终相同或类似的符号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,仅用于解释本实用新型,而不能理解对本实用新型的限制。The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the drawings, in which the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, but cannot be understood as limiting the present invention.
如图1所示的一种电池测试夹具,包括底座1,底座1上设有第一夹紧板2和第二夹紧板3,第一夹紧板2和第二夹紧板3用于对电池进行夹紧,第一夹紧板2和第二夹紧板3之间的距离可调;第一夹紧板2和第二夹紧板3均为板状部件,第一夹紧板2和第二夹紧板3与电池为面接触,进一步增大对锂电池固定的稳定性;A battery test fixture as shown in Figure 1 includes a base 1. The base 1 is provided with a first clamping plate 2 and a second clamping plate 3. The first clamping plate 2 and the second clamping plate 3 are used for To clamp the battery, the distance between the first clamping plate 2 and the second clamping plate 3 is adjustable; both the first clamping plate 2 and the second clamping plate 3 are plate-shaped components, and the first clamping plate 2 and the second clamping plate 3 are in surface contact with the battery, further increasing the stability of fixing the lithium battery;
底座1上还是何有导电连接件4,导电连接件4用于对电池的极耳接触;There is also a conductive connector 4 on the base 1, which is used to contact the tabs of the battery;
在本实施例中,导电连接件4为极耳夹,可以更快捷的与电池极耳接触;In this embodiment, the conductive connector 4 is a terminal lug clip, which can make contact with the battery terminal lug more quickly;
导电连接件4相对第一夹紧板2和第二夹紧板3的位置可调,具体地,该导电连接件4相对第一夹紧板2和第二夹紧板3的位置调节可以通过现有的机械手实现。The position of the conductive connector 4 relative to the first clamping plate 2 and the second clamping plate 3 is adjustable. Specifically, the position of the conductive connector 4 relative to the first clamping plate 2 and the second clamping plate 3 can be adjusted by Existing manipulator implementation.
需要说明的是,底座1的材料可以是不锈钢也可以是其他材料制成;而第一夹紧板2和第二夹紧板3之间的距离可以手动调节以适应不同型号的锂电池;It should be noted that the material of the base 1 can be stainless steel or other materials; and the distance between the first clamping plate 2 and the second clamping plate 3 can be manually adjusted to adapt to different types of lithium batteries;
在锂离子电池电化学预锂的测试过程中应用上述夹具,首先将电池固定在第一夹紧板2和第二夹紧板3之间,然后移动导电连接件4使导电连接件4与电池的极耳接触,然后进行化成、分容、循环等一系列数据测试,通过调节第一夹紧板2和第二夹紧板3的距离使该夹紧便于对不同型号的电池进行固定,通过调节导电连接件4相对第一夹紧板2、第二夹紧板3的位置进而使该导电连接件4适应对不同型号的电池的极片的连接,且通过该夹具的设置便于拆装和连接,且便于对不同型号的电池的检测。The above clamp is used during the electrochemical pre-lithium test of lithium-ion batteries. First, the battery is fixed between the first clamping plate 2 and the second clamping plate 3, and then the conductive connector 4 is moved so that the conductive connector 4 is in contact with the battery. The pole tabs are in contact, and then a series of data tests such as formation, volume division, and circulation are performed. By adjusting the distance between the first clamping plate 2 and the second clamping plate 3, the clamping is convenient for fixing different types of batteries. Adjusting the position of the conductive connector 4 relative to the first clamping plate 2 and the second clamping plate 3 allows the conductive connector 4 to adapt to the connection of the pole pieces of batteries of different types, and the setting of the clamp facilitates disassembly and installation. connection, and facilitates the detection of different types of batteries.
在一些实施例中优选的,导电连接件4在底座1上的竖直方向位置、横向位置和纵向位置至少有一种位置是可以调的,以适应不同高度、不同宽度型号的电池。In some embodiments, it is preferred that at least one of the vertical, lateral and longitudinal positions of the conductive connector 4 on the base 1 is adjustable to accommodate batteries of different heights and widths.
如图1所示,优选地,导电连接件4安装在移动架5上,移动架5安装在底座1上,进而便于该导电连接件4的安装。优选地,移动架5在底座1上竖直方向的位置可调,进而便于该导电连接件4对不同高度极耳的连接同时便于不同型号电池的放置。As shown in Figure 1, preferably, the conductive connector 4 is installed on the movable frame 5, and the movable frame 5 is installed on the base 1, thereby facilitating the installation of the conductive connector 4. Preferably, the vertical position of the mobile frame 5 on the base 1 is adjustable, thereby facilitating the connection of the conductive connector 4 to tabs of different heights and the placement of batteries of different types.
如图2所示,在一些实施例中优选地,还包括升降机构6,降机构安装在底座1上并用于带动移动架5在竖直方向移动,该升降机构6可以为现有技术中的电缸、气缸或丝杆滑块机构等,在本实施例中该升降机构6为电缸;As shown in Figure 2, in some embodiments, it is preferred that a lifting mechanism 6 is also included. The lifting mechanism is installed on the base 1 and is used to drive the mobile frame 5 to move in the vertical direction. The lifting mechanism 6 can be a conventional lifting mechanism in the prior art. Electric cylinder, air cylinder or screw slider mechanism, etc. In this embodiment, the lifting mechanism 6 is an electric cylinder;
还包括距离检测件,距离检测件用于检测移动架5相对第一夹紧板2或第二夹紧板3在竖直方向的高度;该距离检测件为距离力传感器,距离传感器安装在移动架5的底面闪,该距离传感器检测该移动架5的底面到底座1上表面(本领域技术人员应该理解该底座1的上表面为该底座1放置电池的表面)的距离。It also includes a distance detection part, which is used to detect the vertical height of the mobile frame 5 relative to the first clamping plate 2 or the second clamping plate 3; the distance detection part is a distance force sensor, and the distance sensor is installed on the mobile The bottom surface of the frame 5 flashes, and the distance sensor detects the distance from the bottom surface of the mobile frame 5 to the upper surface of the base 1 (those skilled in the art should understand that the upper surface of the base 1 is the surface on which the battery is placed).
优选地,还包括调节杆7,调节杆7安装在移动架5上,导电连接件4安装在调节杆7上,调节杆7在移动架5上的纵向位置可调,具体地,该调节杆7纵向滑动安装在所述移动架5,且调节杆7在移动架5的纵向位置可调,可以通过现有技术中的固定销或固定螺钉等部件将该调节杆7固定,进而适应不同型号的电池,该调节杆7设有两组且两组调节杆7相互平行设置,每个调节杆7上均安装有导电连接件4,进而对电池的正极极片和负极极片接触。Preferably, it also includes an adjusting rod 7. The adjusting rod 7 is installed on the moving frame 5. The conductive connector 4 is installed on the adjusting rod 7. The longitudinal position of the adjusting rod 7 on the moving frame 5 is adjustable. Specifically, the adjusting rod 7 7 is longitudinally slidably installed on the movable frame 5, and the adjusting rod 7 is adjustable in the longitudinal position of the movable frame 5. The adjusting rod 7 can be fixed by fixing pins or fixing screws in the prior art to adapt to different models. The battery has two sets of adjusting rods 7 and the two sets of adjusting rods 7 are arranged parallel to each other. Each adjusting rod 7 is equipped with a conductive connector 4 to contact the positive and negative electrodes of the battery.
优选地,在一些实施例中,该导电连接件4横向滑动安装在调节杆7上,进而便于对不同型号的电池的连接。Preferably, in some embodiments, the conductive connector 4 is laterally slidably installed on the adjusting rod 7 to facilitate the connection of batteries of different types.
优选地,第一夹紧板2固定在底座1上,第二夹紧板3横向滑动安装在底座1上,还包括移动机构9,移动机构9安装在底座1上并用于带动第二夹紧板3在底座1上横向移动,该移动机构9为现有技术中的电缸、或气缸或其他可以带动部件水平移动的结构,在本实施例中为电缸。Preferably, the first clamping plate 2 is fixed on the base 1, the second clamping plate 3 is laterally slidably installed on the base 1, and also includes a moving mechanism 9, which is installed on the base 1 and used to drive the second clamping The plate 3 moves laterally on the base 1, and the moving mechanism 9 is an electric cylinder, a pneumatic cylinder, or other structures that can drive components to move horizontally in the prior art. In this embodiment, it is an electric cylinder.
如图3所示,在一些实施例中优选的,该第一夹紧板2上设有限位板8,限位板8位于第一夹紧板2和第二夹紧板3之间并用于对电池的一侧面抵触限位,优选地,该限位板8在第一夹紧板2上纵向位置可以调节,进一步便于对电池的侧面进行固定,限位板8可以滑动安装在第一挡板上,可以通过现有技术中的固定销将该限位板8固定在第一夹紧板2上。As shown in Figure 3, in some embodiments, it is preferable that the first clamping plate 2 is provided with a limiting plate 8, the limiting plate 8 is located between the first clamping plate 2 and the second clamping plate 3 and is used for For one side of the battery to be limited, preferably, the longitudinal position of the limiting plate 8 on the first clamping plate 2 can be adjusted to further facilitate the fixation of the side of the battery. The limiting plate 8 can be slidably installed on the first clamping plate 2 On the board, the limiting plate 8 can be fixed on the first clamping plate 2 through fixing pins in the prior art.
需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本实用新型和简化描述,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实用新型的限制。It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axis", "Radial", "Peripheral" The orientation or positional relationship indicated by "direction" and so on is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation. Constructed and operated in a specific orientation, it should not be construed as limiting the invention.
此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本实用新型的描述中,“多个”的含义是至少两个,例如两个,三个等,除非另有明确具体的限定。In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.
在本实用新型中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,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,也可以是电连接或彼此可通讯;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,除非另有明确的限定。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本实用新型中的具体含义。In this utility model, unless otherwise expressly stipulated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection, electrical connection or communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction between two elements , unless otherwise expressly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
在本实用新型中,除非另有明确的规定和限定,第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触,或第一和第二特征通过中间媒介间接接触。而且,第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方,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”可以是第一特征在第二特征正下方或斜下方,或仅仅表示第一特征水平高度小于第二特征。In the present invention, unless otherwise expressly stipulated and limited, the first feature "on" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in direct contact through an intermediate medium. indirect contact. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
以上所述,仅为本实用新型较佳的具体实施方式,但本实用新型的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内,根据本实用新型的技术方案及其实用新型构思加以等同替换或改变,都应涵盖在本实用新型的保护范围之内。The above are only preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed by the present utility model, implement the present utility model according to the present utility model. Novel technical solutions and utility model concepts, including equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.
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