CN114324457A - Battery material testing system and method - Google Patents
Battery material testing system and method Download PDFInfo
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- CN114324457A CN114324457A CN202111584539.2A CN202111584539A CN114324457A CN 114324457 A CN114324457 A CN 114324457A CN 202111584539 A CN202111584539 A CN 202111584539A CN 114324457 A CN114324457 A CN 114324457A
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Abstract
The invention discloses a battery material testing system and a method, wherein the battery material testing system comprises: the test device comprises a test box and a plurality of test units, wherein the test box is provided with a plurality of accommodating grooves, and the plurality of test units and the plurality of accommodating grooves are arranged in a one-to-one correspondence manner; the temperature control device is arranged on the testing device; the temperature acquisition device is arranged on the testing device; the performance testing device is used for testing the performance of the battery material; the control device is electrically connected with the test device, the temperature control device, the temperature acquisition device and the performance test device; during the use, put into the test unit with different battery material on, controlling means control temperature control device, temperature acquisition device, performance device carry out performance test to the battery material in the test box, are convenient for carry out performance test simultaneously to different materials under same condition, effective control experiment variable reduces the error that artificial reason leads to.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a battery material testing system and a method.
Background
In battery tests, whether a material can be put into use or not usually needs to be subjected to a series of attempts and tests, mainly comprising the aspects of material structure stability tests, material electrochemical performance tests, material physical performance tests and the like. The electrochemical test of the material requires that the electrochemical performances of a plurality of materials are compared simultaneously under the same condition, so that the best material is selected. For the safety performance test of the electrode material, the performance of different materials under extreme conditions needs to be compared, problems are found as soon as possible and solved, and therefore the requirement of the material on the safety performance is met. In the prior art, different samples can only be subjected to manual sample changing test in a single sequence, a tester is often required to repeat a fixed test process all the time in the test process, and the mechanical operation is more, so that errors are easily caused by human reasons in the test process.
Disclosure of Invention
One of the objects of the present invention is: the battery material testing system solves the technical problem that different samples can only be subjected to manual sample changing testing in a single sequence in the prior art, realizes the performance testing of different materials under the same condition and effectively controls experimental variables.
In order to achieve the purpose, the invention adopts the following technical scheme:
a battery material testing system, comprising:
the test device comprises a test box and a plurality of test units, wherein the test box is provided with a plurality of accommodating grooves, and the plurality of test units and the plurality of accommodating grooves are arranged in a one-to-one correspondence manner;
the temperature control device is arranged on the testing device;
the temperature acquisition device is arranged on the testing device;
the performance testing device is used for testing the performance of the battery material;
and the control device is electrically connected with the testing device, the temperature control device, the temperature acquisition device and the performance testing device.
As an improvement of the battery material testing system, each testing unit comprises a first metal pressing column and a second metal pressing column which are oppositely arranged;
the first metal compression leg and the second metal compression leg are arranged in the corresponding accommodating groove.
As the improvement of the battery material testing system, a first sleeve is sleeved on the first metal compression column, and a first cover is arranged at one end of the first sleeve;
the second metal compression column is sleeved with a second sleeve, and one end of the second sleeve is provided with a second cover;
the other end of the first sleeve is in threaded connection with the other end of the second sleeve.
As an improvement of the battery material testing system, an elastic part is connected between the first cover and the first metal compression column.
As an improvement of the battery material testing system, a clamp is arranged in each accommodating groove, and the testing unit is arranged on the corresponding clamp.
As an improvement of the battery material testing system, the temperature control device comprises a temperature control unit and a constant temperature unit;
the temperature control unit and the constant temperature unit are electrically connected with the control device.
As an improvement of the battery material testing system, the performance testing device comprises a cycle testing unit and an anti-resistance testing unit;
the circulation test unit and the resistance test unit are electrically connected with the control device.
The improvement of the battery material testing system provided by the invention also comprises an alarm device electrically connected with the control device.
As an improvement of the battery material testing system, the control device is arranged as a control panel.
Another object of the present invention is to: there is provided a battery material testing method using a battery material testing system as described hereinbefore in the specification, comprising:
putting different battery materials into a test box through a test unit;
controlling the temperature control device to work through the control device, and controlling the temperature in the test box;
acquiring the temperature of each battery material through a temperature acquisition device to obtain temperature data;
and controlling the performance testing device to work through the control device to obtain the performance data of each battery material.
Compared with the prior art, the invention has the following beneficial effects:
a battery material testing system comprises a testing device, a temperature control device, a temperature acquisition device, a performance testing device, a control device, a temperature control device and a temperature acquisition device, wherein the temperature control device and the temperature acquisition device are arranged on the testing device, the control device is connected with the testing device, the temperature acquisition device and the performance testing device electrically, when in use, the temperature is controlled by the temperature control device, the temperature acquisition device acquires the temperature of a battery material, the performance testing device tests the performance of the battery material, and the battery material is effectively tested The performance device carries out performance test to the battery material in the test box, is convenient for carry out performance test to different materials simultaneously under same condition, and effective control experiment variable reduces the error that artificial reason leads to, improves the efficiency to the performance test of different battery materials.
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.
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, and 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 these drawings without creative efforts.
FIG. 1 is a flow chart of the system of the present invention.
FIG. 2 is a schematic structural diagram of the testing device of the present invention.
FIG. 3 is a schematic structural diagram of a test unit according to the present invention.
Reference numerals: 1. a testing device; 2. a test box; 3. a test unit; 4. accommodating grooves; 5. a temperature control device; 6. a temperature acquisition device; 7. a performance testing device; 8. a control device; 9. a first metal compression leg; 10. a second metal compression leg; 11. a first sleeve; 12. a second sleeve; 13. a first cover; 14. a second cover; 15. an elastic member; 16. a clamp; 17. a temperature control unit; 18. a constant temperature unit; 19. a cycle test unit; 20. an impedance test unit; 21. an alarm device; 22. a battery material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Referring to fig. 1-3, a battery material testing system includes a testing apparatus 1, which includes a testing box 2 and a testing unit 3, wherein the testing box 2 is provided with a plurality of accommodating grooves 4, the testing unit 3 is provided with a plurality of accommodating grooves, and the plurality of testing units 3 and the plurality of accommodating grooves 4 are arranged in a one-to-one correspondence manner; the temperature control device 5 is arranged on the testing device 1; the temperature acquisition device 6 is arranged on the testing device 1; a performance testing device 71 for testing the performance of the battery material 22; and the control device 8 is electrically connected with the testing device 1, the temperature control device 5, the temperature acquisition device 6 and the performance testing device 71.
Compared with the prior art, the battery material testing system of the embodiment uses the testing device 1, the temperature control device 5, the temperature acquisition device 6, the performance testing device 71 and the control device 8 in a matching way, the temperature control device 5 and the temperature acquisition device 6 are both arranged on the testing device 1, the control device 8 is electrically connected with the testing device 1, the temperature control device 5, the temperature acquisition device 6 and the performance testing device 71, when in use, the temperature is controlled by the temperature control device 5, the temperature acquisition device 6 acquires the temperature of the battery material 22, the performance testing device 71 tests the performance of the battery material 22, the testing of the battery material 22 is effectively realized, meanwhile, the testing device 1 comprises a testing box 2 and a testing unit 3, the testing box 2 is provided with a plurality of accommodating grooves 4, the testing unit 3 is provided with a plurality of accommodating grooves, the plurality of testing units 3 are arranged in one-to-one correspondence with the plurality of accommodating grooves 4, during the use, put into test unit 3 with different battery materials 22 on, controlling means 8 control temperature control device 5, temperature acquisition device 6, performance device carry out performance test to the battery material 22 in test box 2, are convenient for carry out performance test to different materials simultaneously under the same condition, effective control experiment variable reduces the error that artificial reason leads to, improves the efficiency to the performance test of different battery materials 22.
In the present embodiment, each test unit 3 includes a first metal plunger 9 and a second metal plunger 10 which are oppositely disposed; the first metal compression leg 9 and the second metal compression leg 10 are arranged in the corresponding accommodating groove 4; through the cooperation use of first metal compression leg 9, second metal compression leg 10, first metal compression leg 9 and second metal compression leg 10 set up relatively and set up in corresponding holding tank 4, during the use, battery material 22 places between first metal compression leg 9 and second metal compression leg 10, and first metal compression leg 9 contact with battery material 22's both sides respectively, and effectual for preparing on next step to battery material 22's performance test.
In this embodiment, the first metal compression leg 9 is sleeved with a first sleeve 11, and one end of the first sleeve 11 is provided with a first cover 13; a second sleeve 12 is sleeved on the second metal compression leg 10, and a second cover 14 is arranged at one end of the second sleeve 12; the other end of the first sleeve 11 is in threaded connection with the other end of the second sleeve 12; through the arrangement of the first sleeve 11 and the second sleeve 12, the first metal compression leg 9 is sleeved with the first sleeve 11, the second metal compression leg 10 is sleeved with the second sleeve 12, one end of the first sleeve 11 is provided with the first cover 13, one end of the second sleeve 12 is provided with the second cover 14, the other end of the first sleeve 11 is in threaded connection with the other end of the second sleeve 12, when in use, the second metal compression leg 10 is placed into the first sleeve 11 and screwed down on the second cover 14, the battery material 22 to be tested is placed on the second sleeve 12 and the second metal compression leg 10 is in contact with the battery material 22, electrolyte is added, the first sleeve 11 is connected with the second sleeve 12 through the threaded fit of the first sleeve 11 and the second sleeve 12, the first metal compression leg 9 is placed into the first sleeve 11, the first cover 13 is screwed down, the first metal compression leg 9 is in contact with the battery material 22, and the above operations are repeated, different battery materials 22 are respectively placed into the corresponding test units 3, and the test units 3 are placed into the test box 2, so that the performance test of the battery materials 22 is effectively prepared.
It should be noted that, a rubber ring may be disposed at a joint of the first sleeve 11 and the second sleeve 12, so as to enhance the sealing property between the first sleeve 11 and the second sleeve 12, and prevent the electrolyte from overflowing from the joint of the first sleeve 11 and the second sleeve 12, thereby affecting the performance test of the battery material 22.
In the embodiment, an elastic member 15 is connected between the first cover 13 and the first metal compression leg 9; by arranging the elastic member 15, the elastic member 15 is arranged between the first cover 13 and the first metal compression leg 9, and when the first cover 13 is screwed, the elastic member 15 is compressed, effectively assisting the contact of the first metal compression leg 9 and the second metal compression leg 10 with the battery material 22.
In this embodiment, a clamp 16 is disposed in each accommodating groove 4, and the test unit 3 is disposed on the corresponding clamp 16; through the setting of anchor clamps 16, be provided with anchor clamps 16 in every holding tank 4, test element 3 sets up on corresponding anchor clamps 16, and effectual fixed test element 3 of passing through anchor clamps 16 prevents that test element 3 from taking place the displacement at the test in-process, and then influences battery material 22's test result.
In the present embodiment, the temperature control device 8 includes a temperature control unit 17, a constant temperature unit 18; the temperature control unit 17 and the constant temperature unit 18 are electrically connected with the control device 8; through the cooperation use of control by temperature change unit 17, constant temperature unit 18, controlling means 8 control temperature when control by temperature change unit 17 control battery material 22 capability test, the control unit control constant temperature unit 18 carries out the constant temperature to certain experimental temperature in the capability test in-process, the effectual improvement is to the rate of accuracy of battery capability test experimental data.
In the present embodiment, the performance testing apparatus 71 includes a loop testing unit 193, an impedance testing unit 203; the circulation test unit 193 and the resistance test unit 203 are electrically connected with the control device 8; through the cooperation use of circulation test unit 193, anti test unit 203 that hinders, controlling means 8 control circulation test unit 193 carries out battery circulation test to battery material 22, and controlling means 8 control is resisted test unit 203 and is resisted the test to battery material 22, during the use, can test battery material 22 according to different test requirements.
In the present embodiment, an alarm device 21 electrically connected to the control device 8 is further included; through alarm device 21's setting, control and control device 8 control alarm device 21 reminds the staff, reminds the staff to take off experiment test material, prevents that the error and leakage from appearing in the experiment data.
The alarm device 21 may be at least one of a buzzer and an LED lamp, and may be set according to actual requirements when in use.
In the present embodiment, the control device 8 is provided as a control panel; through setting up controlling means 8 as control panel, control panel can set up to at least one in computer, touch screen, can set up according to actual demand during the use.
A battery material testing method using a battery material testing system of the foregoing specification, comprising: placing different battery materials 22 into the test box 2 through the test unit 3; the temperature control device 5 is controlled to work through the control device 8, and the temperature in the test box 2 is controlled; acquiring the temperature of each battery material 22 through a temperature acquisition device 6 to obtain temperature data; the control device 8 controls the performance testing device 71 to work, and performance data of each battery material 22 is obtained.
Compared with the prior art, the battery material testing method utilizes the battery material testing system to test, effectively tests the performance of the battery materials 22 made of different materials, is convenient for the simultaneous testing of the battery materials 22 made of different materials under the same environmental condition, and is convenient for the variable control of a testing room.
In summary, a battery material testing system at least has the following performance tests:
testing one: the method is applied to the closed pore temperature test of the diaphragm material and specifically comprises the following operations:
in a glove box (oxygen content and water content are both less than 0.1ppm) filled with argon, a diaphragm material is placed in a test unit 3, electrolyte is added, a first metal compression column 9 and a second metal compression column 10 are respectively contacted with the diaphragm, the test unit 3 is placed in a test box 2 through corresponding clamps 16, the operations are repeated, different diaphragm materials are respectively placed in the test box 2 and numbered, the resistance test unit 203, the temperature control unit 17 and the temperature acquisition device 6 are controlled to start working through a control panel, the resistance values, the temperature and the time change values of the different diaphragm materials are recorded at any time, and the change values are displayed through the control panel in real time. When the resistance value is suddenly increased, the temperature at the moment is the closed pore temperature of the corresponding diaphragm material, and when all the diaphragm materials are suddenly increased in resistance value, the control panel automatically records and stores data and ends the test.
And (2) testing: the method is applied to the performance test of the solid electrolyte at the same temperature, and comprises the following specific operations:
the solid electrolyte material is placed in the test unit 3, the first metal compression column 9 and the second metal compression column 10 are respectively contacted with the solid electrolyte material, the test unit 3 is placed in the test box 2 through the corresponding clamp 16, the operation is repeated, different solid electrolyte materials are respectively placed in the test box 2 and numbered, the resistance test unit 203, the temperature control unit 17 and the temperature acquisition device 6 are controlled to start working through the control panel, the resistance values of the diaphragms made of different materials and the change values of the temperature and the time are recorded at any time, and the resistance values and the change values of the temperature and the time are displayed through the control panel in real time. Setting the corresponding temperature according to the property of the tested material, starting the impedance testing unit 3 after the temperature of the box to be tested 2 reaches the preset temperature, testing the real-time data of the impedance of the solid electrolyte at the temperature from the high frequency to the low frequency, displaying the data on the control panel, automatically recording and storing the data by the control panel, and finishing the test.
And (3) testing: the method is applied to the performance test of the solid electrolyte at different temperatures, and comprises the following specific operations:
the solid electrolyte material is placed in the test unit 3, the first metal compression column 9 and the second metal compression column 10 are respectively contacted with the solid electrolyte material, the test unit 3 is placed in the test box 2 through the corresponding clamp 16, the operation is repeated, different solid electrolyte materials are respectively placed in the test box 2 and numbered, the resistance test unit 203, the temperature control unit 17 and the temperature acquisition device 6 are controlled to start working through the control panel, the resistance values of the diaphragms made of different materials and the change values of the temperature and the time are recorded at any time, and the resistance values and the change values of the temperature and the time are displayed through the control panel in real time. According to the property of the tested material, the corresponding temperature gradient and the heat preservation time are set, after the temperature of the box to be tested 2 reaches the preset temperature, the impedance testing unit 3 starts to work, the real-time data of the impedance of the solid electrolyte at the temperature from the high frequency to the low frequency is tested and displayed on the control panel, the control panel automatically records and stores the data, the control alarm device 21 reminds the tester to take down the testing unit 3, the solid electrolyte to be observed is taken out, the microscopic morphology of the material is observed, and the test is finished after the experimental data under all the temperature gradients are completed.
And (4) testing: the method is applied to the performance test of the electrode material and specifically comprises the following operations:
in a glove box (oxygen content and water content are both less than 0.1ppm) filled with argon, electrode materials are placed in a test unit 3, electrolyte is added, a first metal compression column 9 and a second metal compression column 10 are respectively contacted with a diaphragm, the test unit 3 is placed in a test box 2 through corresponding clamps 16, the operations are repeated, diaphragms made of different materials are respectively placed in the test box 2 and numbered, the control panel controls the circulation resistance test unit 3, the temperature control unit 17, the temperature acquisition device 6 and the constant temperature unit 18 to start working, the capacity, the temperature and the time change values of the different electrode materials in the charging and discharging processes are recorded at any time, and the real-time display is carried out through the control panel. According to the property of the tested material, the corresponding temperature is set, after the temperature of the box to be tested 2 reaches the preset temperature, the circulation test unit 193 starts working to test the circulation performance of the electrode material at the temperature, the constant temperature unit 18 ensures the constant temperature in the test box 2, the capacity change in the charging and discharging process is displayed in real time in the control panel, the control panel automatically records and stores data, and the test is finished when the preset circulation condition is reached.
In conclusion, the battery material testing system can simultaneously test different testing materials under the same condition, effectively control experimental variables, ensure the reliability of experimental data, improve the testing efficiency, simultaneously save the experimental data in real time, effectively assist workers to analyze the properties of the battery material 22, and improve the experimental testing efficiency.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. A battery material testing system, comprising:
the test device comprises a test box and a plurality of test units, wherein the test box is provided with a plurality of accommodating grooves, and the plurality of test units and the plurality of accommodating grooves are arranged in a one-to-one correspondence manner;
the temperature control device is arranged on the testing device;
the temperature acquisition device is arranged on the testing device;
the performance testing device is used for testing the performance of the battery material;
and the control device is electrically connected with the testing device, the temperature control device, the temperature acquisition device and the performance testing device.
2. The battery material testing system of claim 1, wherein each of said test units comprises a first metal plunger and a second metal plunger disposed opposite to each other;
the first metal compression leg and the second metal compression leg are arranged in the corresponding accommodating groove.
3. The battery material testing system of claim 2, wherein the first metal compression leg is sleeved with a first sleeve, and one end of the first sleeve is provided with a first cover;
the second metal compression column is sleeved with a second sleeve, and one end of the second sleeve is provided with a second cover;
the other end of the first sleeve is in threaded connection with the other end of the second sleeve.
4. The battery material testing system of claim 3, wherein an elastic member is coupled between the first cover and the first metal compression leg.
5. The battery material testing system according to claim 1, wherein a clamp is disposed in each receiving groove, and the testing unit is disposed on the corresponding clamp.
6. The battery material testing system of claim 1, wherein the temperature control device comprises a temperature control unit, a thermostatic unit;
the temperature control unit and the constant temperature unit are electrically connected with the control device.
7. The battery material testing system of claim 1, wherein the performance testing device comprises a cycling testing unit, an impedance testing unit;
the circulation test unit and the resistance test unit are electrically connected with the control device.
8. The battery material testing system of claim 1, further comprising an alarm device electrically connected to the control device.
9. The battery material testing system of claim 1, wherein the control device is configured as a control panel.
10. A battery material testing method, characterized in that a battery material testing system according to any one of claims 1 to 9 is used for testing, comprising:
putting different battery materials into a test box through a test unit;
controlling the temperature control device to work through the control device, and controlling the temperature in the test box;
acquiring the temperature of each battery material through a temperature acquisition device to obtain temperature data;
and controlling the performance testing device to work through the control device to obtain the performance data of each battery material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111584539.2A CN114324457A (en) | 2021-12-22 | 2021-12-22 | Battery material testing system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111584539.2A CN114324457A (en) | 2021-12-22 | 2021-12-22 | Battery material testing system and method |
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| CN114324457A true CN114324457A (en) | 2022-04-12 |
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| CN202111584539.2A Pending CN114324457A (en) | 2021-12-22 | 2021-12-22 | Battery material testing system and method |
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| CN205139335U (en) * | 2015-11-13 | 2016-04-06 | 东莞市创明电池技术有限公司 | Battery performance simulation testing arrangement |
| CN110865306A (en) * | 2018-08-27 | 2020-03-06 | 阿滨仪器(天津)有限公司 | Multi-cavity independent safety test box, temperature control box and cold plate box |
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