CN112147027A - Battery diaphragm liquid absorption amount detection device and battery diaphragm liquid absorption amount detection method - Google Patents
Battery diaphragm liquid absorption amount detection device and battery diaphragm liquid absorption amount detection method Download PDFInfo
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- CN112147027A CN112147027A CN202010965849.8A CN202010965849A CN112147027A CN 112147027 A CN112147027 A CN 112147027A CN 202010965849 A CN202010965849 A CN 202010965849A CN 112147027 A CN112147027 A CN 112147027A
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- diaphragm
- absorption amount
- liquid absorption
- lead screw
- amount detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N2013/003—Diffusion; diffusivity between liquids
Abstract
The invention discloses a device and a method for detecting the liquid absorption amount of a battery diaphragm, wherein the device comprises: a moving mechanism for moving the diaphragm into the detection liquid; the weighing mechanism is used for weighing the mass of the detection liquid in real time and generating a corresponding mass signal; the control module is electrically connected with the weighing mechanism and can receive the mass signal and calculate the received mass signal to obtain the liquid absorption amount of the diaphragm; and the display mechanism is electrically connected with the control module and is used for displaying the result calculated by the control module. The battery diaphragm liquid absorption amount detection device in the embodiment calculates the liquid absorption amount of the diaphragm by weighing the detection liquid, so that the accuracy of a test result is higher, the liquid absorption amount of the diaphragm can be automatically calculated and displayed, and the change of the liquid absorption amount of the diaphragm can be monitored in real time from a display mechanism.
Description
Technical Field
The invention relates to the technical field of battery manufacturing, in particular to a device and a method for detecting the liquid absorption amount of a battery diaphragm.
Background
The diaphragm is one of four materials of the lithium ion battery, occupies nearly 1/3 of the cost of the lithium ion battery, and is a key inner layer component in the lithium battery. In a lithium battery, after a separator absorbs an electrolyte, the positive and negative electrodes may be isolated to prevent a short circuit while allowing conduction of lithium ions. The separator should maintain long-term stability in the electrolyte without reacting with the electrolyte and electrode materials. The better wettability of diaphragm and electrolyte is favorable to improving the affinity of diaphragm and electrolyte, enlarges the contact surface of diaphragm and electrolyte to increase ionic conductivity, improve the charge-discharge performance and the capacity of battery. The wettability of the diaphragm to the electrolyte can be measured by measuring the liquid absorption amount of the diaphragm, and the commonly used method for testing the liquid absorption amount of the diaphragm at present is to place one end of the diaphragm in a detection liquid, calculate the liquid climbing height of the detection liquid on the diaphragm within a certain time by using a stopwatch and a ruler, and further calculate the liquid absorption amount of the diaphragm. The method has the defect that errors are easily generated in the timing of the stopwatch and the measurement of the ruler, and the accuracy of a test result is influenced.
In view of the above, it is necessary to develop a device and a method for detecting the amount of liquid absorbed by a battery diaphragm, so as to solve the above problems.
Disclosure of Invention
In view of the above problems, the present invention provides a battery diaphragm liquid absorption amount detection device and a battery diaphragm liquid absorption amount detection method, which enable more accurate diaphragm liquid absorption amount measurement.
According to a first aspect of the present invention, there is provided a battery diaphragm liquid absorption amount detection device comprising:
a moving mechanism for moving the diaphragm into the detection liquid;
the weighing mechanism is used for weighing the mass of the detection liquid in real time and generating a corresponding mass signal;
the control module is electrically connected with the weighing mechanism and can receive the mass signal and calculate the received mass signal to obtain the liquid absorption amount of the diaphragm; and
and the display mechanism is electrically connected with the control module and is used for displaying the result calculated by the control module.
This embodiment further comprises a clamping mechanism for clamping the diaphragm and subjecting the diaphragm to a predetermined pressure.
The clamping mechanism comprises two clamping plates and a driving assembly for driving the two clamping plates to move, and the driving assembly can drive the two clamping plates to relatively approach and move away.
The splint is a transparent splint.
The driving assembly comprises a first support, a first screw rod and a first driving motor, the first screw rod is rotatably installed on the first support, the first driving motor is used for driving the first screw rod, and the clamping plate is in threaded connection with the first screw rod.
The first screw rod and the first driving motor for driving the first screw rod are respectively provided with two, and the two first screw rods are respectively provided with one clamping plate.
The clamping mechanism further comprises a second screw rod and a second driving motor, the second screw rod is arranged on the first support along the vertical direction, the second driving motor is in transmission connection with the second screw rod, and the driving assembly is in threaded connection with the second screw rod.
The clamping mechanism is arranged on the moving mechanism, and the moving mechanism can drive the clamping mechanism to move.
The moving mechanism comprises a second support, a third screw rod, a hanging part and a third driving motor, the third screw rod is arranged on the second support in the vertical direction, the hanging part is in threaded connection with the third screw rod, the hanging part is used for fixing a diaphragm, and the third driving motor is in transmission connection with the third screw rod to drive the third screw rod to rotate.
According to a second aspect of the present invention, there is provided a battery diaphragm liquid absorption amount detection method performed based on the battery diaphragm liquid absorption amount detection apparatus as described in any one of the above embodiments, the method including the steps of:
fixing a diaphragm on the moving mechanism;
placing a detection liquid on the weighing mechanism;
clamping the diaphragm by using a clamping mechanism according to a preset pressure;
at least partially immersing the membrane in the detection fluid.
The embodiment of the invention has at least the following beneficial effects:
the diaphragm can be automatically placed in the detection liquid through the moving mechanism, the quality of the detection liquid can be weighed in real time through the weighing mechanism, corresponding quality signals can be generated, the control module can receive the quality signals, corresponding calculation can be conducted on the quality signals, the display mechanism can display the result of the calculation of the control module on the quality signals, and the size of the diaphragm liquid absorption amount can be obtained.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is one of the schematic structural views of a battery separator liquid absorption amount detection apparatus in one embodiment;
FIG. 2 is a second schematic view showing the structure of a device for detecting the amount of liquid absorbed by a battery separator according to an embodiment;
FIG. 3 is a third schematic view showing the structure of a device for detecting the amount of liquid absorbed by a battery separator in one embodiment;
FIG. 4 is a schematic flow chart showing a method for detecting a liquid absorption amount of a battery separator in one embodiment;
in the figure: 100. a moving mechanism; 110. a drive structure; 111. a second bracket; 112. a third drive motor; 113. a third screw rod; 120. a hanging part; 200. a weighing mechanism; 300. a display mechanism; 400. a diaphragm; 500. detecting the liquid; 600. a clamping mechanism; 611. a first bracket; 612. a first lead screw; 613. a first drive motor; 620. a splint; 631. a second lead screw; 632. a second drive motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a device for detecting a liquid absorption amount of a battery diaphragm, including a moving mechanism 100, a weighing mechanism 200, a control module (not shown in the figure), and a display mechanism 300, wherein the moving mechanism 100 is configured to move the diaphragm 400 into a detection liquid 500, the weighing mechanism 200 is configured to weigh a mass of the detection liquid 500 in real time and generate a corresponding mass signal, the control module is electrically connected to the weighing mechanism 200, the control module is capable of receiving the mass signal and calculating the received mass signal to obtain the liquid absorption amount of the diaphragm 400, the display mechanism 300 is electrically connected to the control module, and the display mechanism 300 is configured to display a result calculated by the control module. The battery diaphragm liquid absorption amount detection device in this embodiment calculates the liquid absorption amount of the diaphragm 400 by weighing the detection liquid 500, and not only the accuracy of the test result is higher, but also the liquid absorption amount of the diaphragm 400 can be automatically calculated and displayed, and the change in the liquid absorption amount of the diaphragm 400 can be monitored in real time from the display mechanism 300, so that other properties of the diaphragm 400 can be analyzed.
Specifically, the calculation formula of the liquid absorption amount of the diaphragm 400 in the present embodiment is: the liquid absorption amount of the separator 400 is the weight of the test solution 500 before the separator 400 is placed, the weight of the test solution 500 after the separator 400 is placed, and the volatilization coefficient of the test solution 500. The weight of the test solution 500 after the diaphragm 400 is inserted means the weight when the inserted diaphragm 400 can no longer absorb the test solution 500.
Referring to fig. 1, in the present embodiment, the moving mechanism 100 includes a driving structure 110 and a hanging part 120, one end of the diaphragm 400 is fixed on the hanging part 120, and the driving structure 110 can drive the hanging part 120 to move and at least partially immerse the diaphragm 400 in the detection liquid 500.
Preferably, the hanging part 120 is rod-shaped, the length direction of the hanging part 120 is in a horizontal plane, the weighing mechanism 200 is arranged below the hanging part 120, the detection liquid 500 is placed on the weighing mechanism 200, and the driving structure 110 can drive the hanging part 120 to move in a vertical direction.
Preferably, the diaphragm 400 is movably fixed to the hanger part 120, and the diaphragm 400 is movable along the length direction of the hanger part 120. Specifically, the hanger part 120 is provided with a slide rail along the length direction thereof, the slide rail is provided with a slide block matched with the slide rail, the slide block can move on the slide rail, specifically, the section of the slide rail perpendicular to the length direction thereof is an isosceles trapezoid, the upper side of the isosceles trapezoid is a short side, the slide block is provided with a groove matched with the slide rail, the section of the groove perpendicular to the length direction thereof is an isosceles trapezoid, the diaphragm 400 is fixed on the slide block, and specifically, the slide block is provided with a clamp for clamping the diaphragm 400.
In this embodiment, the driving structure 110 includes a second bracket 111, a third driving motor 112 and a third lead screw 113, the third lead screw 113 is disposed on the second bracket 111 along the vertical direction, the hanging member 120 is screwed on the third lead screw 113, the third driving motor 112 is in transmission connection with the third lead screw 113 to drive the third lead screw 113 to rotate, since each relevant parameter needs to be set as a preset value as much as possible during the test of the liquid absorption amount of the diaphragm 400, so as to ensure the accuracy of the liquid absorption amount of the diaphragm 400, in this embodiment, the depth of the diaphragm 400 immersed in the detection liquid 500 needs to be precisely controlled, and through the screw-thread fit between the third lead screw 113 and the hanging member 120, the distance of the hanging member 120 axially moving along the third lead screw 113 can be precisely controlled to control the depth of the diaphragm 400 immersed in the detection liquid 500.
In some other embodiments, the driving structure 110 includes a piston cylinder, the axial direction of the output shaft of the piston cylinder is a vertical direction, the output shaft of the piston cylinder can move along the axial direction, and the hanging part 120 is disposed on the output shaft of the piston cylinder, and in this embodiment, the hanging part 120 is controlled to move along the vertical direction by the piston cylinder. The piston cylinder may be a pneumatic cylinder or a hydraulic cylinder.
Referring to fig. 1, the battery separator liquid absorption amount detection apparatus in the present embodiment further includes a clamping mechanism 600 for clamping the separator 400 and subjecting the separator 400 to a predetermined pressure. In this embodiment, since the diaphragm 400 absorbs liquid amounts at different pressing forces, in order to ensure the accuracy of the liquid absorption amount of the diaphragm 400, in this embodiment, a predetermined pressure is applied to the diaphragm 400 by the clamping mechanism 600 to ensure the accuracy of the liquid absorption amount of the diaphragm 400.
The clamping mechanism 600 in this embodiment includes two clamping plates 620 and a driving assembly for driving the two clamping plates 620 to move, the two clamping plates 620 are parallel and opposite to each other, and the driving assembly can drive the two clamping plates 620 to move closer to and away from each other, so as to apply a predetermined pressure to the diaphragm 400.
Preferably, the present embodiment further includes a pressure sensing piece for sensing the pressure applied to the diaphragm 400 by the two clamping plates 620, and particularly, the pressure sensing piece is attached to one side of the clamping plate 620 close to the diaphragm 400. The accuracy of the detection of the amount of liquid absorbed by the diaphragm 400 is further improved by monitoring the pressure applied to the diaphragm 400 by the clamping plate 620 via the pressure sensing piece.
Preferably, the clamping plate 620 is a transparent clamping plate 620, in particular, the clamping plate 620 can be a glass clamping plate 620, and by arranging the clamping plate 620 as the transparent clamping plate 620, the liquid absorption amount of the diaphragm 400 can be conveniently observed, for example, the climbing height of the detection liquid 500 on the diaphragm 400 can be conveniently observed.
Further preferably, the clamping plate 620 is vertically arranged, and the clamping plate 620 is provided with scales along the vertical direction thereof, in this embodiment, the user can also perform a preliminary calculation on the liquid absorption amount of the diaphragm 400 by observing the climbing height of the detection liquid 500 on the diaphragm 400.
Referring to fig. 1, the driving assembly in this embodiment includes a first bracket 611, a first lead screw 612, and a first driving motor 613, the first lead screw 612 is rotatably mounted on the first bracket 611, the first driving motor 613 drives the first lead screw 612, and a clamp plate 620 is screwed on the first lead screw 612. Through the cooperation of the first lead screw 612 and the clamping plate 620, the moving distance of the clamping plate 620 along the axial direction of the first lead screw 612 can be controlled very accurately.
Preferably, there are two first lead screws 612, two first driving motors 613, two clamping plates 620 are respectively mounted on the two first lead screws 612, and the two driving motors drive one first lead screw 612 respectively.
Preferably, both the clamping plates 620 are provided with a threaded hole and a through hole, the threaded hole is used for being in threaded connection with one of the first lead screws 612, the through hole is used for allowing the other one of the first lead screws 612 to pass through, and the outer diameter of the first lead screw 612 is slightly smaller than the diameter of the through hole.
In other embodiments, there is one first lead screw 612 and one first driving motor 613 for driving the first lead screw 612 to rotate, in this embodiment, the first lead screw 612 has a first portion and a second portion, the thread directions of the first portion and the second portion are opposite, the two clamping plates 620 are respectively screwed on the first portion and the second portion, and the two clamping plates 620 can be controlled to move close to or away from each other by the forward rotation and the reverse rotation of the first driving motor 613.
In other embodiments, the driving assembly comprises two piston cylinders, the two piston cylinders are oppositely arranged, the axial directions of the piston cylinders are horizontal, two clamping plates 620 are respectively arranged at the ends of the output shafts of the two piston cylinders, and the two clamping plates 620 can be close to or far away from each other through the control of the two piston cylinders on the clamping plates 620.
It should be noted that the clamping plate 620 in the above embodiments moves synchronously with the diaphragm 400, and in order to achieve the synchronous movement of the clamping plate 620 and the diaphragm 400, the present invention provides the following two embodiments.
First embodiment, referring to fig. 1, the clamping mechanism 600 in this embodiment is disposed on the moving mechanism 100, and the moving mechanism 100 can drive the clamping mechanism 600 to move. Specifically, the driving assembly is screwed on the third screw 113, specifically, the first bracket 611 is screwed on the third screw 113, the driving assembly can move along with the rotation of the third screw 113, and the driving assembly and the hanger part 120 have the same moving path, so that it can be ensured that the clamping plate 620 arranged on the driving assembly and the diaphragm 400 arranged on the hanger part 120 move synchronously.
In the second embodiment, referring to fig. 2, the clamping mechanism 600 in this embodiment further includes a second screw 631 and a second driving motor 632, the second screw 631 is disposed on the first bracket 611 along the vertical direction, the second driving motor 632 is in transmission connection with the second screw 631, and the driving assembly is in threaded connection with the second screw 631. In this embodiment, the second lead screw 631 and the third lead screw 113 are both vertically disposed, and the driving assembly can be controlled to move along the axial direction of the second lead screw 631 by rotating the second driving motor 632, in this embodiment, the outer diameter of the second lead screw 631 is the same, the thread pitch of the second lead screw 113 is the same, and the rotation speeds of the second driving motor 632 and the third driving motor 112 are the same, so that the clamping plate 620 disposed on the driving assembly and the diaphragm 400 disposed on the suspension member 120 move synchronously.
Preferably, the clamping mechanism 600 in the first embodiment also includes a second lead screw 631 and a second driving motor 632, the second lead screw 631 is disposed on the first bracket 611 along the vertical direction, the second driving motor 632 is in transmission connection with the second lead screw 631, and the driving assembly is in threaded connection with the second lead screw 631. The driving assembly can be controlled to move in the vertical direction through the second lead screw 631, so as to directionally adjust the relative position of the clamping plate 620 and the diaphragm 400.
Referring to fig. 3, in some embodiments, the weighing mechanism 200 has a plurality of diaphragms 400 that can be fixed to the hanger part 120. In this embodiment, a plurality of diaphragms 400 can be simultaneously detected. Specifically, each of the first lead screw 612 and the first driving motor 613 for driving the first lead screw 612 has a plurality of first lead screws 612, each of the first lead screws 612 controls a pair of oppositely disposed clamp plates 620, specifically, the first lead screw 612 has a first portion and a second portion, the thread directions of the first portion and the second portion are opposite, the two clamp plates 620 are respectively screwed on the first portion and the second portion, and the two clamp plates 620 can be controlled to approach or separate from each other by forward rotation and reverse rotation of the first driving motor 613.
Referring to fig. 1 to 3, the weighing mechanism 200 in the present embodiment is a high-precision electronic scale to weigh the detection liquid 500, and specifically, the detection liquid 500 is placed in a container, and the container is placed on the high-precision electronic scale.
Referring to fig. 1 to fig. 3, the display mechanism 300 is a display screen, and the control module and the display mechanism 300 in this embodiment may be on the same mobile terminal, which may be a computer, a mobile phone, a tablet computer, and the like.
Referring to fig. 4, an embodiment of the present invention further provides a method for detecting a liquid absorption amount of a battery diaphragm, which is performed based on the device for detecting a liquid absorption amount of a battery diaphragm in the above embodiment, and the method includes the following steps:
s101, the diaphragm 400 is fixed to the moving mechanism 100, specifically, to the hanging member 120.
S102, placing the detection liquid 500 on the weighing mechanism 200.
S103, the diaphragm 400 is clamped at a predetermined pressure using the clamping mechanism 600, specifically, clamped and pressurized by two clamping plates 620 disposed opposite to each other.
At least partially immersing the diaphragm 400 in the detection liquid 500, specifically, driving the diaphragm 400 to be immersed in the detection liquid 500 by the moving mechanism 100, S104.
In the method for detecting the liquid absorption amount of the battery diaphragm in the embodiment, since each variable is controlled more accurately in the detection process, and in addition, the liquid absorption amount of the diaphragm 400 is calculated by the change in the mass of the detection liquid 500, the measured liquid absorption amount of the diaphragm 400 can be more accurately measured. And the detection mode principle is simple, and the operation is easy.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. Battery diaphragm liquid absorption amount detection device, its characterized in that includes:
a moving mechanism for moving the diaphragm into the detection liquid;
the weighing mechanism is used for weighing the mass of the detection liquid in real time and generating a corresponding mass signal;
the control module is electrically connected with the weighing mechanism and can receive the mass signal and calculate the received mass signal to obtain the liquid absorption amount of the diaphragm; and
and the display mechanism is electrically connected with the control module and is used for displaying the result calculated by the control module.
2. The battery diaphragm liquid absorption amount detection device according to claim 1, further comprising a clamping mechanism for clamping the diaphragm and subjecting the diaphragm to a predetermined pressure.
3. The battery diaphragm fluid absorption amount detection device according to claim 2, wherein said clamping mechanism comprises two clamping plates and a driving assembly for driving the two clamping plates to move, and said driving assembly is capable of driving the two clamping plates to move relatively close to and away from each other.
4. The apparatus for detecting the amount of liquid absorbed by a battery separator as defined in claim 3, wherein the clamp plate is a transparent clamp plate.
5. The battery diaphragm liquid absorption amount detection device according to claim 3, wherein the drive assembly includes a first bracket, a first lead screw rotatably mounted on the first bracket, and a first drive motor for driving the first lead screw, the clamp plate being screwed to the first lead screw.
6. The battery diaphragm liquid absorption amount detection device according to claim 5, wherein there are two first lead screws and two first driving motors for driving the first lead screws, and one clamp plate is mounted on each of the two first lead screws.
7. The battery diaphragm liquid absorption amount detection device according to claim 5, wherein the clamping mechanism further comprises a second lead screw and a second driving motor, the second lead screw is vertically disposed on the first bracket, the second driving motor is in transmission connection with the second lead screw, and the driving assembly is in threaded connection with the second lead screw.
8. The battery separator liquid absorption amount detection device according to any one of claims 2 to 7, wherein the nip mechanism is provided on the moving mechanism, and the moving mechanism is capable of driving the nip mechanism to move.
9. The battery diaphragm liquid absorption amount detection device according to any one of claims 1 to 7, wherein the moving mechanism includes a second bracket, a third lead screw provided on the second bracket in a vertical direction, a hanger part screwed to the third lead screw, the hanger part being used to fix the diaphragm, and a third driving motor drivingly connected to the third lead screw to drive the third lead screw to rotate.
10. A battery diaphragm liquid absorption amount detection method, characterized by being performed based on the battery diaphragm liquid absorption amount detection apparatus according to any one of claims 1 to 9, the method comprising the steps of:
fixing a diaphragm on the moving mechanism;
placing a detection liquid on the weighing mechanism;
clamping the diaphragm by using a clamping mechanism according to a preset pressure;
at least partially immersing the membrane in the detection fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965849.8A CN112147027A (en) | 2020-09-15 | 2020-09-15 | Battery diaphragm liquid absorption amount detection device and battery diaphragm liquid absorption amount detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965849.8A CN112147027A (en) | 2020-09-15 | 2020-09-15 | Battery diaphragm liquid absorption amount detection device and battery diaphragm liquid absorption amount detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112147027A true CN112147027A (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010965849.8A Pending CN112147027A (en) | 2020-09-15 | 2020-09-15 | Battery diaphragm liquid absorption amount detection device and battery diaphragm liquid absorption amount detection method |
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| Country | Link |
|---|---|
| CN (1) | CN112147027A (en) |
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2020
- 2020-09-15 CN CN202010965849.8A patent/CN112147027A/en active Pending
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Effective date of registration: 20220106 Address after: 2201, building 1, COFCO Chuangxin R & D center, 69 Xingdong community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: Chuangpus (Shenzhen) New Energy Technology Co.,Ltd. Address before: 1-3 / F, building F2, No. 1001, Zhongshan Park Road, Nanshan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN NEW HENGYE BATTERY TECHNOLOGY Co.,Ltd. |