CN212843816U

CN212843816U - Container for measuring pole piece volume

Info

Publication number: CN212843816U
Application number: CN202021603964.2U
Authority: CN
Inventors: 杨东辉; 王羽平; 陈冬
Original assignee: Zhejiang Narada Power Source Co Ltd; Hangzhou Nandu Power Technology Co Ltd
Current assignee: Zhejiang Narada Power Source Co Ltd; Hangzhou Nandu Power Technology Co Ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-03-30
Anticipated expiration: 2030-08-05

Abstract

The utility model provides a measure container of pole piece volume, including tubule and bottle. The bottle body is communicated with the thin tube, an opening for the object to be measured to enter is formed in the bottle body, and the opening is sealed by a detachable sealing cover; wherein, the pipe diameter of tubule is far less than the bottle footpath of bottle, and open-ended bore is greater than the pipe diameter of tubule. Through setting up the opening that a bore is greater than the pipe diameter of tubule for get into the object that awaits measuring, the change of volume takes place in thinner pipe diameter department again simultaneously, and the reading is more accurate.

Description

Container for measuring pole piece volume

Technical Field

The utility model relates to a porosity test technical field, more specifically relate to a measure container of pole piece volume.

Background

The existing method for testing the porosity of the lithium ion battery pole piece mainly comprises a mercury pressing method and a method for weighing the pole piece after soaking, wherein the mercury pressing method needs professional equipment which is high in cost and serious in pollution; the residual solution on the surface of the pole piece after being soaked has great influence on the experimental result.

In addition, some methods measure the porosity of the pole piece by detecting the volume change of the test pole piece, but the volume of the pole piece is very small (less than 0.3ml), and the volume cannot be measured by a common measuring container.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art's at least one not enough, provide a measure container of pole piece volume.

In order to achieve the above object, the utility model provides a measure container of pole piece volume, include:

a thin tube;

the bottle body is communicated with the thin tube, an opening for the object to be detected to enter is formed in the bottle body, and the opening is sealed by a detachable sealing cover;

wherein, the pipe diameter of tubule is far less than the bottle footpath of bottle, and open-ended bore is greater than the pipe diameter of tubule.

Optionally, the wall of the tubule is marked with a scale.

Optionally, the bottle body is provided with an opening for the object to be measured to enter, and the opening is provided with a convex part.

Optionally, the bottle still is equipped with the base, and the base is outwards protrusion by the one end of keeping away from the tubule of bottle and forms, and base and bellying locate the same one side of bottle.

Optionally, the height of the protrusion is smaller than the height of the base.

Optionally, the sealing cover comprises a cover top and a cover wall, the inner side of the cover wall is provided with a first thread, and the outer edge of the bulge is provided with a second thread engaged with the first thread.

Optionally, the height of the base is equal to the sum of the thickness of the cover top and the height of the protrusion.

Optionally, the bottle diameter of the bottle body is integral multiple of the pipe diameter of the tubule.

Optionally, the bottle diameter of the bottle body is more than 40 times of the pipe diameter of the thin pipe.

Optionally, the tubule and the vial are cylindrical.

To sum up, the utility model provides a bottle and tubule intercommunication of the container of measurement pole piece volume is equipped with an opening that supplies the object that awaits measuring to get into on the bottle, and wherein, the pipe diameter of tubule is far less than the bottle footpath of bottle, and the open-ended bore is greater than the pipe diameter of tubule. The pipe orifice used for measuring the volume in the laboratory is too thin, but the object to be measured with larger area of the pole piece can not be placed into the volumetric flask, and the precision of the general measuring cylinder or measuring cup is not enough. And the utility model discloses a set up the opening that a bore is greater than the pipe diameter of tubule for get into the object that awaits measuring, the change of volume takes place in thinner pipe diameter department again simultaneously, and the reading is more accurate.

Drawings

Fig. 1 is a schematic diagram of a container for measuring the volume of a pole piece provided by an embodiment of the present invention;

fig. 2 is a top view of a container for measuring the volume of a pole piece provided by an embodiment of the present invention;

fig. 3 is a schematic bottom view of a container for measuring the volume of a pole piece according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

The utility model provides an object that awaits measuring can be lithium ion battery pole piece, also can be the electrode slice of other batteries, can also be arbitrary other rules or anomalous article such as stone. The utility model provides a pipe diameter and bottle footpath all indicate the internal diameter. The utility model provides a bottle footpath that the pipe diameter of tubule is far less than the bottle indicates that the bottle footpath of bottle is more than 10 times of the pipe diameter of tubule, more preferred, the bottle footpath of bottle is more than 40 times of the pipe diameter of tubule.

Referring to fig. 1 to 3, the container of the present invention is composed of a glass thin tube 1 (with scales and a minimum scale of 0.01ml) with a volume of 1ml and a cylindrical glass bottle body 2, wherein the length of the glass tube is 30cm and the inner diameter of the tube is 5mm (similar to a pipette of 1ml) in order to make the reading of the measurement result as accurate as possible. The diameter of the cylindrical glass bottle body 2 is 20cm, which is much larger than the pipe diameter of the glass tube, and is 40 times of the pipe diameter of the tubule 1, that is to say, the height change of the bottle body 2 part is amplified by 40 times and displayed in the tubule 1, which is more accurate. The container is 10cm high and is convenient to place on a table, and the bottom of the cylindrical glass bottle body 2 is provided with an annular glass base 4, so that the bottle body 2 can be conveniently and horizontally placed on the table. The center of the bottom is provided with a detachable sealing cover, the diameter of the sealing cover is 5cm, the sealing cover is made of polypropylene plastics, and the top glass tubule 1 is sealed. The container for measuring the volume of the pole piece in the embodiment is made of glass which is transparent, has certain hardness and is not easy to react with an organic solvent, the state of an object to be measured is convenient to observe by adopting a transparent material, the certain hardness is used for ensuring that the container keeps certain measured volume and does not react with the organic solvent, and the final measurement result is prevented from being influenced by interaction between the solvent and the container. The sealing cover can also be made of glass material, and the sealing cover and the boss part 3 are sealed by a sealing ring.

Bottle 2 and tubule 1 intercommunication are equipped with an opening 6 that supplies the object that awaits measuring to get into on the bottle 2, and wherein, the pipe diameter of tubule 1 is far less than the bottle footpath of bottle 2, and the bore of opening 6 is greater than the pipe diameter of tubule 1. The pipe orifice used for measuring the volume in the laboratory is too thin, but the object to be measured with larger area of the pole piece can not be placed into the volumetric flask, and the precision of the general measuring cylinder or measuring cup is not enough. And the utility model discloses a set up the opening 6 that a bore is greater than the pipe diameter of tubule 1 for get into the object that awaits measuring, the change of volume takes place in thinner pipe diameter department again simultaneously, and the reading is more accurate.

Furthermore, the end of the bottle body 2 far away from the thin tube 1 protrudes outwards to form the protruding part 3, and the end of the protruding part 3 is provided with an opening 6 for the object to be measured to enter, so that the container is toppled over when the sealing cover is detached or installed, but when the sealing cover is normally placed, the protruding part 3 is arranged below the container, the protruding part 3 protruding outwards and the sealing cover are sleeved on the protruding part 3, and the sealing cover can be prevented from contacting with the solvent when the sealing cover is normally placed as far as possible. The boss 3 in fig. 1 is only a schematic diagram showing a relative positional relationship, and the specific structure of the boss 3 is shown in fig. 3.

The bottle 2 still is equipped with base 4, and base 4 is formed by the outside protrusion of the one end of bottle 2 of keeping away from tubule 1, and base 4 and bellying 3 locate bottle 2 with one side. When the whole container is normally placed, the thin tube 1 is upward, and the base 4 is used for supporting the bottle body 2. The height of the boss 3 is less than that of the base 4 to ensure the normal placement of the entire container.

In this embodiment, the sealing cap comprises a cap top 5 and a cap wall, the inner side of the cap wall is provided with a first thread 51, and the outer edge of the boss 3 is provided with a second thread 31 engaged with the first thread 51.

The height of base 4 equals the thickness of caping and the high sum of bellying 3, like this if under the completely sealed state (that is to say sealed lid revolves to the end), base 4 and the sealed lid of the bottom of container are complete parallel and level, can test base 4 and sealed lid to be the parallel and level through instrument such as ruler, levelling instrument in turn to whether the detection is sealed completely, prevents to take place the weeping.

The utility model provides a measuring pole piece volume's container's application method:

(1) inverting the bottle body, opening the sealing cover, injecting a certain volume of liquid, ensuring that a part of the inverted liquid enters the glass tubule, and covering the sealing cover;

(2) the bottle body is placed right, and the scale V1 at the moment is read;

(3) inverting the bottle body, opening the sealing cover, putting the pole piece in the bottle body, and covering the sealing cover;

(4) the bottle body is placed right, and the scale V2 at the moment is read;

(5) the volume of the pole piece is V2-V1;

it will be understood by those skilled in the art that in the present disclosure, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the present invention and to simplify the description, but do not indicate or imply that the container or member being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the terms should not be construed as limiting the invention.

Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of other modifications and variations without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A container for measuring the volume of a pole piece, comprising:

a thin tube;

the bottle body is communicated with the thin tube, an opening for an object to be detected to enter is formed in the bottle body, and the opening is sealed by a detachable sealing cover;

wherein, the pipe diameter of tubule is far less than the bottle footpath of bottle, open-ended bore is greater than the pipe diameter of tubule.

2. The container for measuring the volume of a pole piece according to claim 1, wherein the thin tube wall of the thin tube is marked with a scale.

3. The container for measuring the volume of the pole piece according to any one of claims 1 to 2, wherein one end of the bottle body away from the tubule protrudes outwards to form a convex part, and one end of the convex part is provided with the opening for the object to be measured to enter.

4. The container for measuring the volume of the pole piece as claimed in claim 3, wherein the bottle body is further provided with a base, the base is formed by protruding one end of the bottle body away from the thin tube, and the base and the protrusion are arranged on the same side of the bottle body.

5. A container for measuring the volume of a pole piece as claimed in claim 4, wherein the height of said boss is less than the height of said base.

6. The container for measuring the volume of a pole piece according to claim 5, wherein the sealing cover comprises a cover top and a cover wall, the inner side of the cover wall is provided with a first thread, and the outer edge of the boss is provided with a second thread engaged with the first thread.

7. A container for measuring pole piece volume as claimed in claim 6 wherein the height of the base is equal to the sum of the thickness of the cover top and the height of the boss.

8. The container for measuring the volume of the pole piece according to claim 1, wherein the bottle diameter of the bottle body is an integral multiple of the tube diameter of the tubule.

9. The container for measuring the volume of the pole piece according to claim 1, wherein the bottle diameter of the bottle body is more than 40 times of the tube diameter of the tubule.

10. The container for measuring the volume of a pole piece according to claim 1, wherein the tubule and the bottle are cylindrical.