WO2022116021A1 - 一种锂电池生产用电解液取样装置 - Google Patents
一种锂电池生产用电解液取样装置 Download PDFInfo
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- WO2022116021A1 WO2022116021A1 PCT/CN2020/133208 CN2020133208W WO2022116021A1 WO 2022116021 A1 WO2022116021 A1 WO 2022116021A1 CN 2020133208 W CN2020133208 W CN 2020133208W WO 2022116021 A1 WO2022116021 A1 WO 2022116021A1
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- sampling
- piston rod
- vacuum
- electrolyte
- needle
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- 238000005070 sampling Methods 0.000 title claims abstract description 79
- 239000003792 electrolyte Substances 0.000 title claims abstract description 28
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000003825 pressing Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000010408 film Substances 0.000 abstract 2
- 239000010409 thin film Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000037427 ion transport Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
Definitions
- the utility model relates to an electrolyte sampling device, in particular to an electrolyte sampling device for lithium battery production.
- Lithium battery electrolyte is the carrier of ion transport in the battery. Generally composed of lithium salts and organic solvents. The electrolyte plays the role of conducting ions between the positive and negative electrodes of the lithium battery, which is the guarantee for the lithium ion battery to obtain the advantages of high voltage and high specific energy.
- the electrolyte is generally prepared from high-purity organic solvents, electrolyte lithium salts, necessary additives and other raw materials under certain conditions and in a certain proportion.
- the current sampling method is to first introduce the sample from the barrel containing the electrolyte into the capped vial for sampling, the sampling efficiency is low, and the sampling process is easy to be polluted.
- the purpose of this utility model is to provide an electrolyte sampling device for lithium battery production, so as to solve the problem of low sampling efficiency of the common electrolyte sampling device for lithium battery production proposed in the above-mentioned background art.
- an electrolyte sampling device for lithium battery production comprising a cylinder body and a piston rod, a top cover is rotatably installed on the top of the cylinder body, and the piston rod penetrates the top cover
- the upper and lower walls of the cylinder, and the piston rod and the top cover are slidingly connected, the top of the piston rod is fixedly installed with a pressing plate, the bottom of the inner cavity of the cylinder is slidably installed with a fixing ring, and the bottom end of the fixing ring is fixedly installed
- There is a first spring the bottom end of the first spring is fixedly connected with the bottom inner wall of the cylinder, the top of the fixing ring is provided with a vacuum sampling tube, the bottom of the vacuum sampling tube is provided with a through hole, the through hole is
- a film is fixedly installed at the inner end of the cylinder, a sampling needle is fixedly installed in the middle of the bottom end of the cylinder, a film-tie needle is fixedly installed
- the outer wall of the piston rod is sheathed with a second spring.
- the top cover is rotatably connected to the cylinder through a hinge.
- two lugs are symmetrically arranged on the top of the outer wall of the cylinder.
- a pressure plate is fixedly installed at the bottom end of the piston rod.
- the top of the vacuum sampling tube is provided with a tube cover.
- the present invention is an electrolyte sampling device for lithium battery production.
- the pressing plate When sampling, the pressing plate is pressed, and the pressing plate drives the pressing plate to move downward through the piston rod, thereby driving vacuum sampling.
- the tube moves down, so that the film-tie needle pierces the film.
- the electrolyte Since the vacuum sampling tube is in a vacuum state, the electrolyte enters the vacuum sampling tube through the sampling needle and the film-tie needle under the action of air pressure to complete the sampling. After the sampling is completed, open the top cover. Take out the vacuum sampling tube and replace it with a new vacuum sampling tube to continue sampling.
- the sampling speed is fast, and the sampling process is relatively safe and not easy to be polluted.
- Fig. 1 is the structural representation of the utility model
- Fig. 2 is the sectional structure schematic diagram of the utility model
- Fig. 3 is the enlarged structural schematic diagram of A place of Fig. 2;
- FIG. 4 is a schematic structural diagram of the utility model when the top cover is opened.
- the utility model provides an electrolyte sampling device for lithium battery production, including a cylinder 1 and a piston rod 3, characterized in that a top cover 2 is rotatably installed on the top of the cylinder 1, and the piston rod 3 runs through the upper and lower walls of the top cover 2, and the piston rod 3 is slidingly connected with the top cover 2.
- the top end of the piston rod 3 is fixedly installed with a pressing plate 4.
- Pressing the pressing plate 4 can make the piston rod 3 move down, and the inside of the cylinder 1
- the bottom of the cavity is slidably installed with a fixing ring 5, the bottom end of the fixing ring 5 is fixedly installed with a first spring 6, the bottom end of the first spring 6 is fixedly connected with the bottom inner wall of the cylinder 1, and the top of the fixing ring 5 is provided with a vacuum sampling Tube 7, the interior of the vacuum sampling tube 7 is set to a vacuum state, the bottom of the vacuum sampling tube 7 is provided with a through hole 701, the inner end of the through hole 701 is fixedly installed with the film 8, and the middle of the bottom end of the cylinder 1 is fixedly installed with a sampling needle 9 , the top of the sampling needle 9 is fixedly installed with a membrane tying needle 10, through which the membrane 8 can be pierced. directly below.
- the outer wall of the piston rod 3 is sheathed with a second spring 11, through which the piston rod 3 can be reset, the top cover 2 is rotatably connected with the cylinder 1 through the hinge 12, and the top of the outer wall of the cylinder 1 is symmetrically arranged with two
- the present invention is an electrolyte sampling device for lithium battery production.
- first open the top cover 2 put the vacuum sampling tube 7 into the cylinder 1, and then insert the sampling needle 9 into the electrolyte, and then insert the sampling needle 9 into the electrolyte.
- Press the pressing plate 4, and the pressing plate 4 drives the pressing plate 13 to move downward through the piston rod 3, thereby driving the vacuum sampling tube 7 to move downward, so that the film tying needle 10 pierces the film 8. Since the vacuum sampling tube 7 is in a vacuum state, so Under the action of air pressure, the electrolyte enters the vacuum sampling tube 7 through the sampling needle 9 and the film-tying needle 10, thereby completing the sampling.
- the top cover 2 is opened to take out the vacuum sampling tube 7, and a new vacuum sampling tube 7 is replaced to continue. sampling.
- the present utility model unless otherwise expressly specified and limited, for example, it may be a fixed connection, a detachable connection, or an integrated body; it may be a mechanical connection or an electrical connection; it may be a direct connection, or a It can be indirectly connected through an intermediate medium, it can be the communication between two elements or the interaction relationship between the two elements, unless otherwise clearly defined, for those of ordinary skill in the art, the above terms can be understood according to the specific situation in this document. The specific meaning in the utility model.
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Abstract
一种锂电池生产用电解液取样装置，包括筒体（1）和活塞杆（3），筒体（1）的顶端转动安装有顶盖（2），活塞杆（3）贯穿顶盖（2）的上下壁，且活塞杆（3）与顶盖（2）为滑动连接，活塞杆（3）的顶端固定安装有按板（4），筒体（1）内腔的底部滑动安装有固定环（5）；取样时按压按板（4），按板（4）通过活塞杆（3）带动压板（13）向下移动，从而带动真空取样管（7）向下移动，使得扎膜针（10）扎破薄膜（8），由于真空取样管（7）内为真空状态，所以在气压的作用下电解质通过取样针（9）和扎膜针（10）进入真空取样管（7）内，从而完成取样，取样完成后打开顶盖（2）将真空取样管（7）取出，并换上新的真空取样管（7）继续取样，取样速度较快，且取样过程较为安全，不易被污染。
Description
本实用新型涉及一种电解液取样装置，特别涉及一种锂电池生产用电解液取样装置。
锂电池电解液是电池中离子传输的载体。一般由锂盐和有机溶剂组成。电解液在锂电池正、负极之间起到传导离子的作用，是锂离子电池获得高电压、高比能等优点的保证。电解液一般由高纯度的有机溶剂、电解质锂盐、必要的添加剂等原料，在一定条件下、按一定比例配制而成的，在生产电解液的过程中，需要对电解液取样进行水分含量测试，目前的取样方法是先从盛装有电解液的桶导入到带盖的小瓶方式进行取样，取样效率较低，取样过程中容易被污染。
实用新型内容
本实用新型的目的在于提供一种锂电池生产用电解液取样装置，以解决上述背景技术中提出的常见的锂电池生产用电解液取样装置取样效率较低的问题。
为实现上述目的，本实用新型提供如下技术方案：一种锂电池生产用电解液取样装置，包括筒体和活塞杆，所述筒体的顶端转动安装有顶盖，所述活塞杆贯穿顶盖的上下壁，且所述活塞杆与顶盖为滑动连接，所述活塞杆的顶端固定安装有按板，所述筒体内腔的底部滑动安装有固定环，所述固定环 的底端固定安装有第一弹簧，所述第一弹簧的底端与筒体的底部内壁固定连接，所述固定环的顶端设有真空取样管，所述真空取样管的底部设置有通孔，所述通孔的内端固定安装有薄膜，所述筒体底端的中部固定安装有取样针，所述取样针的顶端固定安装有扎膜针，所述取样针的内腔与扎膜针的内腔相连通，所述扎膜针位于通孔的正下方。
作为本实用新型的一种优选技术方案，所述活塞杆的外壁套装有第二弹簧。
作为本实用新型的一种优选技术方案，所述顶盖通过铰链与筒体转动连接。
作为本实用新型的一种优选技术方案，所述筒体外壁的顶部对称设置有两个凸耳。
作为本实用新型的一种优选技术方案，所述活塞杆的底端固定安装有压板。
作为本实用新型的一种优选技术方案，所述真空取样管的顶部设置有管盖。
与现有技术相比，本实用新型的有益效果是：本实用新型一种锂电池生产用电解液取样装置，取样时按压按板，按板通过活塞杆带动压板向下移动，从而带动真空取样管向下移动，使得扎膜针扎破薄膜，由于真空取样管内为真空状态，所以在气压的作用下电解质通过取样针和扎膜针进入真空取样管内，从而完成取样，取样完成后打开顶盖将真空取样管取出，并换上新的真空取样管继续取样，取样速度较快，且取样过程较为安全，不易被污染。
图1为本实用新型的结构示意图；
图2为本实用新型的剖面结构示意图；
图3为图2的A处放大结构示意图；
图4为本实用新型顶盖打开时的结构示意图。
图中：1、筒体；101、凸耳；2、顶盖；3、活塞杆；4、按板；5、固定环；6、第一弹簧；7、真空取样管；701、通孔；702、管盖；8、薄膜；9、取样针；10、扎膜针；11、第二弹簧；12、铰链；13、压板。
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
请参阅图1-4，本实用新型提供了一种锂电池生产用电解液取样装置，包括筒体1和活塞杆3，其特征在于，筒体1的顶端转动安装有顶盖2，活塞杆3贯穿顶盖2的上下壁，且活塞杆3与顶盖2为滑动连接，活塞杆3的顶端固定安装有按板4，按压按板4可以使活塞杆3向下移动，筒体1内腔的底部滑动安装有固定环5，固定环5的底端固定安装有第一弹簧6，第一弹簧6的底端与筒体1的底部内壁固定连接，固定环5的顶端设有真空取样管7，真空取样管7的内部设置为真空状态，真空取样管7的底部设置有通孔701，通孔701的内端固定安装有薄膜8，筒体1底端的中部固定安装有取样针9， 取样针9的顶端固定安装有扎膜针10，通过扎膜针10可以扎破薄膜8，取样针9的内腔与扎膜针10的内腔相连通，扎膜针10位于通孔701的正下方。
优选的，活塞杆3的外壁套装有第二弹簧11，通过第二弹簧11可以使活塞杆3复位，顶盖2通过铰链12与筒体1转动连接，筒体1外壁的顶部对称设置有两个凸耳101，通过凸耳101以便于按压按板4，活塞杆3的底端固定安装有压板13，通过压板13可以压下真空取样管7，真空取样管7的顶部设置有管盖702，打开管盖702可以倒出真空取样管7内的样品。
具体使用时，本实用新型一种锂电池生产用电解液取样装置，使用时首先打开顶盖2，并将真空取样管7放入筒体1内，然后将取样针9插入电解液内，并按压按板4，按板4通过活塞杆3带动压板13向下移动，从而带动真空取样管7向下移动，使得扎膜针10扎破薄膜8，由于真空取样管7内为真空状态，所以在气压的作用下电解质通过取样针9和扎膜针10进入真空取样管7内，从而完成取样，取样完成后打开顶盖2将真空取样管7取出，并换上新的真空取样管7继续取样。
在本实用新型的描述中，需要理解的是，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。
在本实用新型中，除非另有明确的规定和限定，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，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。
尽管已经示出和描述了本实用新型的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本实用新型的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本实用新型的范围由所附权利要求及其等同物限定。
Claims (6)
- 一种锂电池生产用电解液取样装置，包括筒体(1)和活塞杆(3)，其特征在于，所述筒体(1)的顶端转动安装有顶盖(2)，所述活塞杆(3)贯穿顶盖(2)的上下壁，且所述活塞杆(3)与顶盖(2)为滑动连接，所述活塞杆(3)的顶端固定安装有按板(4)，所述筒体(1)内腔的底部滑动安装有固定环(5)，所述固定环(5)的底端固定安装有第一弹簧(6)，所述第一弹簧(6)的底端与筒体(1)的底部内壁固定连接，所述固定环(5)的顶端设有真空取样管(7)，所述真空取样管(7)的底部设置有通孔(701)，所述通孔(701)的内端固定安装有薄膜(8)，所述筒体(1)底端的中部固定安装有取样针(9)，所述取样针(9)的顶端固定安装有扎膜针(10)，所述取样针(9)的内腔与扎膜针(10)的内腔相连通，所述扎膜针(10)位于通孔(701)的正下方。
- 根据权利要求1所述的一种锂电池生产用电解液取样装置，其特征在于：所述活塞杆(3)的外壁套装有第二弹簧(11)。
- 根据权利要求1所述的一种锂电池生产用电解液取样装置，其特征在于：所述顶盖(2)通过铰链(12)与筒体(1)转动连接。
- 根据权利要求1所述的一种锂电池生产用电解液取样装置，其特征在于：所述筒体(1)外壁的顶部对称设置有两个凸耳(101)。
- 根据权利要求1所述的一种锂电池生产用电解液取样装置，其特征在于：所述活塞杆(3)的底端固定安装有压板(13)。
- 根据权利要求1所述的一种锂电池生产用电解液取样装置，其特征在于：所述真空取样管(7)的顶部设置有管盖(702)。
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| CN116395251A (zh) * | 2023-03-22 | 2023-07-07 | 南通恒润新材料科技有限公司 | 一种丙纶超细旦丝油剂储存运输装置及使用方法及其使用方法 |
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