Novel centrifugal tube device for lithium ion battery
By designing a new type of centrifugal tube device for lithium-ion batteries, using movable snaps, V-shaped funnel-shaped baffle device and removable sleeve cup, the problems of electrode sheet collapse and electrolyte collection during the centrifugation of the internal electrolyte of the lithium-ion battery electrode are solved, and the smooth collection and analysis of the electrolyte is achieved.
Patent Information
- Application Number
- CN202420492998.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-14
AI Technical Summary
During the centrifuge of the internal electrolyte of the lithium-ion battery electrode, ordinary centrifuge tubes are prone to problems such as the electrode sheet collapse and shrinkage and the electrolyte cannot be collected reasonably.
A new type of centrifugal tube device for lithium-ion batteries is designed, including a movable snap, a V-shaped funnel-shaped baffle device and a removable sleeve cup. These structures prevent the electrode sheet from shrinking and conveniently collecting the electrolyte.
The device prevents the pole sheet from shrinking itself during high-speed centrifugation, and at the same time, the centrifuged electrolyte is successfully collected, solving the problem that the electrolyte cannot be collected reasonably and assists in the analysis of the electrolyte composition.
Smart Images
Figure CN222534989U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium ion battery detection research, in particular to a novel centrifuge tube device for lithium ion batteries. Background Art
[0002] The electrochemical performance of lithium-ion batteries mainly depends on the structure and performance of the electrode materials and electrolyte materials used. The study of electrode materials is certainly important, but the electrolyte, as an indispensable component of lithium-ion batteries, is an ion conductor that conducts between the positive and negative electrodes. The performance of the electrolyte and the interface conditions between the positive and negative electrodes directly affect the performance of lithium-ion batteries. The analysis of the electrolyte composition inside the lithium battery electrode is an indispensable and important link in the research and development of lithium battery electrolytes, and has guiding significance for the research and development and design of lithium battery electrolytes. During the centrifugation of the electrolyte inside the core, the following problems will occur when using ordinary centrifuge tubes. 1. The pole piece in the centrifuge tube collapses and shrinks during the high-speed centrifugation of the centrifuge tube, and the centrifugation fails; 2. The separated electrolyte cannot be aggregated during the centrifugation process, and will be absorbed by the pole piece, resulting in the inability to reasonably collect the electrolyte. The present invention can reasonably solve such problems, smoothly collect the electrolyte, and assist in the analysis of the composition of the electrolyte. Utility Model Content
[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a novel centrifuge tube device for lithium ion batteries.
[0004] The utility model provides a novel centrifuge tube device for lithium-ion batteries, comprising a centrifuge tube body, an upper inner cavity of the centrifuge tube body is provided with an active buckle, a bottom of the centrifuge tube body is provided with a V-shaped funnel-shaped baffle device, and a circular hole is provided at the bottom of the V-shaped funnel-shaped baffle device.
[0005] Preferably, the area of the circular hole accounts for 1 / 5 to 1 / 10 of the bottom area.
[0006] Preferably, a detachable sleeve cup is mounted on the bottom of the centrifuge tube body through a snap fit.
[0007] Preferably, a liquid collecting cup is provided inside the detachable sleeve cup, and the circular hole at the bottom of the V-shaped funnel-shaped baffle device is located in the inner cavity of the liquid collecting cup.
[0008] Preferably, the movable buckles are made of PVC material, are located on the inner wall of the centrifuge tube orifice, and are 3-5 in number.
[0009] Preferably, the liquid collecting cup is made of PVC (rigid polyvinyl chloride) material that is resistant to acid corrosion, and the bottom area is 1 / 4 to 1 / 2 of the bottom area of the centrifuge tube.
[0010] In the utility model, a novel centrifuge tube device for lithium-ion batteries is proposed, which has a simple structure, is convenient and practical, can prevent the pole pieces from shrinking themselves during high-speed centrifugation in the centrifuge tube, and can smoothly collect the centrifuged electrolyte, and is easy to promote and apply.
[0011] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model;
[0013] Explanation of the numbers in the figure: 1. movable buckle; 2. V-shaped funnel-shaped baffle device; 3. circular hole; 4. detachable sleeve cup; 5. liquid collecting cup; 6. centrifuge tube body. DETAILED DESCRIPTION
[0014] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein 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 accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0015] like Figure 1 A novel centrifuge tube device for lithium-ion batteries shown in the figure comprises a centrifuge tube body 6, an upper portion of the inner cavity of the centrifuge tube body 6 is provided with an active buckle 1, a bottom of the centrifuge tube body 6 is provided with a V-shaped funnel-shaped baffle device 2, and a circular hole 3 is provided at the bottom of the V-shaped funnel-shaped baffle device 2.
[0016] Preferably, the area of the circular hole 3 accounts for 1 / 5 to 1 / 10 of the bottom area.
[0017] Preferably, a detachable sleeve cup 4 is mounted on the bottom of the centrifuge tube body 6 by snap-fitting.
[0018] Preferably, a liquid collecting cup 5 is provided inside the detachable sleeve cup 4 , and the circular hole 3 at the bottom of the V-shaped funnel-shaped baffle device 2 is located in the inner cavity of the liquid collecting cup 5 .
[0019] Preferably, the movable buckles 1 are made of acid-corrosion-resistant PVC (rigid polyvinyl chloride) material, are located on the inner wall of the centrifuge tube orifice, and are 3-5 in number.
[0020] Preferably, the liquid collecting cup 5 is made of PVC (rigid polyvinyl chloride) material that is resistant to acid corrosion, and the bottom area is 1 / 4 to 1 / 2 of the bottom area of the centrifuge tube.
[0021] Unscrew the cap of the centrifuge tube and open the movable buckle 1. Take the battery cell electrode, roll it into a cylinder, and insert it vertically into the main body of the centrifuge tube. Fasten the movable buckle 1 to fix the upper end of the electrode on the inner wall of the centrifuge tube mouth. Tighten the tube cap, put it into the centrifuge, and start centrifugation. During the centrifugation process, the electrolyte inside the rolled core electrode is separated from the electrode, flows along the V-shaped funnel-shaped baffle device 2 to the circular hole 3, and then enters the liquid collecting cup 5 in the detachable sleeve cup 4 through the circular hole 3. Remove the sleeve cup 4 and use a syringe to extract the electrolyte in the liquid collecting cup 5. The sampling is completed. The electrode itself can be prevented from shrinking during the high-speed centrifugation of the centrifuge tube, and the centrifuged electrolyte can be smoothly collected.
[0022] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A novel centrifuge tube device for lithium-ion batteries, characterized in that: The centrifuge tube body comprises a centrifuge tube main body (6), wherein a movable buckle (1) is provided at the upper part of the inner cavity of the centrifuge tube main body (6), a V-shaped funnel-shaped baffle device (2) is provided at the bottom of the centrifuge tube main body (6), and a circular hole (3) is provided at the bottom of the V-shaped funnel-shaped baffle device (2).
2. A novel centrifuge tube device for lithium ion batteries according to claim 1, characterized in that: The area of the circular hole (3) accounts for 1 / 5 to 1 / 10 of the bottom area.
3. A novel centrifuge tube device for lithium ion batteries according to claim 1, characterized in that: The bottom of the centrifuge tube body (6) is covered with a detachable sleeve cup (4) by snap-fitting.
4. A novel centrifuge tube device for lithium ion batteries according to claim 3, characterized in that: A liquid collecting cup (5) is arranged inside the detachable sleeve cup (4), and the circular hole (3) at the bottom of the V-shaped funnel-shaped baffle device (2) is located in the inner cavity of the liquid collecting cup (5).
5. A novel centrifuge tube device for lithium ion batteries according to claim 1, characterized in that: The movable buckles (1) are made of PVC material and are located on the inner wall of the centrifuge tube mouth. The number of the movable buckles (1) is 3-5.
6. A novel centrifuge tube device for lithium-ion batteries according to claim 1, characterized in that: The liquid collecting cup (5) is made of PVC material, and the bottom area is 1 / 4 to 1 / 2 of the bottom area of the centrifuge tube.