CN115856658B - Battery soaking time detection method and device, electronic equipment and storage medium - Google Patents
Battery soaking time detection method and device, electronic equipment and storage medium Download PDFInfo
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- CN115856658B CN115856658B CN202211594360.XA CN202211594360A CN115856658B CN 115856658 B CN115856658 B CN 115856658B CN 202211594360 A CN202211594360 A CN 202211594360A CN 115856658 B CN115856658 B CN 115856658B
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- 238000002791 soaking Methods 0.000 title claims abstract description 62
- 238000001514 detection method Methods 0.000 title claims description 36
- 238000001764 infiltration Methods 0.000 claims abstract description 133
- 230000008595 infiltration Effects 0.000 claims abstract description 130
- 238000000034 method Methods 0.000 claims abstract description 63
- 238000012544 monitoring process Methods 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 24
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
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Abstract
The application provides a method and a device for detecting battery infiltration time, electronic equipment and a storage medium, wherein the method comprises the following steps: monitoring the voltages between the anode and the cathode of the primary battery electrode group in the process of carrying out infiltration treatment on the battery to be tested; when the voltage between the positive electrode and the negative electrode of the primary battery electrode set reaches a preset nominal voltage, determining that the to-be-measured battery is fully soaked in the horizontal direction, and recording a first soaking time; after the horizontal infiltration of the battery to be tested is determined to be sufficient, the discharge capacity of the primary battery electrode group is monitored; when the discharge capacity of the primary battery electrode group reaches a preset discharge capacity, determining that the to-be-measured battery is fully soaked in the thickness direction, and recording a second soaking time; and determining the total time length of full infiltration of the battery to be measured according to the first infiltration time and the second infiltration time. By analyzing the infiltration effect of the primary battery pole group embedded in the most difficult-to-infiltrate position preset in the battery to be measured, whether the battery to be measured is fully infiltrated after liquid injection is accurately judged, so that the time for the battery to be measured needs to be fully infiltrated is accurately determined.
Description
Technical Field
The present application relates to the field of battery detection technologies, and in particular, to a method and apparatus for detecting a battery infiltration time, an electronic device, and a storage medium.
Background
The battery is used as a power source of electronic products, is widely applied and indispensable in social life. Because the performance evaluation of the battery production process is insufficient, the application performance of the battery can be influenced, for example, the battery is insufficiently infiltrated after being filled with liquid, the infiltration time is insufficient, the capacity of the battery is insufficient, the performance is poor, and even side reactions such as lithium precipitation and the like occur in the battery, so that the battery performance is influenced, and therefore, how to ensure the battery infiltration is sufficient becomes important research content.
In the prior art, a battery after the completion of the infiltration process is generally disassembled, and whether the battery is sufficiently infiltrated at this time is determined by observing the degree of wetting inside the battery. However, since the electrolyte is colorless, it is difficult to accurately observe the humidity in the battery by naked eyes, and it is not possible to accurately determine how long it takes for the battery to be fully impregnated.
Disclosure of Invention
The application provides a method and a device for detecting battery infiltration time, electronic equipment and a storage medium, and aims to solve the defects that the prior art cannot accurately determine how long a battery needs to be infiltrated sufficiently.
The application provides a battery soaking time detection method, which is applied to a battery detection system, wherein the battery detection system comprises a battery to be detected and a primary battery pole group, the primary battery pole group is embedded in a preset most difficult-to-soak position of the battery to be detected, and the method comprises the following steps:
Monitoring the voltages between the anode and the cathode of the primary battery electrode group in the process of carrying out infiltration treatment on the battery to be tested;
When the voltage between the positive electrode and the negative electrode of the primary battery electrode group reaches a preset nominal voltage, determining that the to-be-measured battery is fully soaked in the horizontal direction, and recording a first soaking time;
After the horizontal infiltration of the battery to be tested is determined to be sufficient, monitoring the discharge capacity of the primary battery electrode group;
When the discharge capacity of the primary battery electrode group reaches a preset discharge capacity, determining that the to-be-measured battery is fully soaked in the thickness direction, and recording a second soaking time;
And determining the total time length of full infiltration of the battery to be tested according to the first infiltration time and the second infiltration time.
Optionally, after determining that the to-be-measured battery is sufficiently soaked in the horizontal direction, monitoring the discharge capacity of the primary battery electrode group includes:
After the battery to be tested is fully soaked in the horizontal direction, carrying out discharging operation on the primary battery pole group based on discharging equipment connected with the primary battery pole group;
and monitoring the discharge capacity of the primary battery pole group in the process of performing discharge operation on the primary battery pole group.
Optionally, after determining that the to-be-measured battery is sufficiently soaked in the horizontal direction, performing a discharging operation on the primary battery electrode group based on a discharging device connected with the primary battery electrode group, including:
acquiring the full infiltration time length of the primary battery corresponding to the primary battery electrode group;
after the horizontal infiltration of the battery to be measured is determined to be sufficient, entering a state of waiting for the infiltration of the battery to be measured in the thickness direction;
and when the time length of the state of waiting for the infiltration of the thickness direction of the battery to be measured reaches the full infiltration time length of the primary battery, performing discharge operation on the primary battery electrode group based on discharge equipment connected with the primary battery electrode group.
Optionally, the obtaining the sufficient immersion time length of the primary battery corresponding to the primary battery electrode group includes:
Performing infiltration treatment on the primary battery pole group sample to obtain the sample full infiltration time length of the primary battery pole group sample; the primary battery pole group sample is the same as the primary battery pole group embedded into the battery to be tested.
Optionally, the performing the infiltration treatment on the primary battery electrode group sample to obtain a sample full infiltration duration of the primary battery electrode group sample includes:
Monitoring the discharge capacity of a primary battery pole group sample in the process of carrying out infiltration treatment on the primary battery pole group sample;
When the discharge capacity of the primary battery pole group sample reaches a preset discharge capacity, determining that the primary battery pole group sample is fully soaked, and recording sample soaking time;
And determining the sample full-infiltration time length of the primary battery pole group sample according to the starting time of infiltration treatment of the primary battery pole group sample and the sample infiltration time.
The second aspect of the present application provides a device for detecting a battery infiltration time, where the battery detection system includes a battery to be detected and a primary battery pole set, and the primary battery pole set is embedded in a preset most difficult-to-infiltrate position of the battery to be detected, and the device includes:
The first monitoring module is used for monitoring the voltages between the positive electrode and the negative electrode of the primary battery electrode group in the process of carrying out infiltration treatment on the battery to be tested;
The first recording module is used for determining that the to-be-measured battery is fully soaked in the horizontal direction when the voltage between the positive electrode and the negative electrode of the primary battery electrode group reaches a preset nominal voltage, and recording a first soaking time;
The second monitoring module is used for monitoring the discharge capacity of the primary battery pole group after the horizontal direction of the battery to be detected is fully soaked;
The second recording module is used for determining that the to-be-measured battery is fully soaked in the thickness direction when the discharge capacity of the primary battery electrode group reaches a preset discharge capacity, and recording second soaking time;
and the detection module is used for determining the total full infiltration time length of the battery to be detected according to the first infiltration time and the second infiltration time.
A third aspect of the present application provides a battery detection system, which includes the battery soaking time detection device, the battery to be detected and the battery pole group according to the second aspect and the various possible designs of the second aspect;
The primary battery electrode group is embedded in a preset most difficult-to-infiltrate position of the battery to be tested;
the device for detecting the battery soaking time adopts the method described in the first aspect and the various possible designs of the first aspect to detect the total time length of the battery to be detected when being fully soaked.
Optionally, the positive and negative electrode leads of the primary battery electrode group and the positive and negative electrodes of the battery to be tested are in the same battery plane.
A fourth aspect of the present application provides an electronic device, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes the computer-executable instructions stored by the memory such that the at least one processor performs the method as described above in the first aspect and the various possible designs of the first aspect.
A fifth aspect of the application provides a computer readable storage medium having stored therein computer executable instructions which when executed by a processor implement the method as described above for the first aspect and the various possible designs of the first aspect.
The technical scheme of the application has the following advantages:
The application provides a method and a device for detecting battery infiltration time, electronic equipment and a storage medium, wherein the method comprises the following steps: monitoring the voltages between the anode and the cathode of the primary battery electrode group in the process of carrying out infiltration treatment on the battery to be tested; when the voltage between the positive electrode and the negative electrode of the primary battery electrode set reaches a preset nominal voltage, determining that the to-be-measured battery is fully soaked in the horizontal direction, and recording a first soaking time; after the horizontal infiltration of the battery to be tested is determined to be sufficient, the discharge capacity of the primary battery electrode group is monitored; when the discharge capacity of the primary battery electrode group reaches a preset discharge capacity, determining that the to-be-measured battery is fully soaked in the thickness direction, and recording a second soaking time; and determining the total time length of full infiltration of the battery to be measured according to the first infiltration time and the second infiltration time. According to the method provided by the scheme, the impregnating effect of the primary battery electrode group embedded in the most difficult-to-infiltrate position preset in the battery to be detected is analyzed, and whether the battery to be detected is fully infiltrated after the battery to be detected is injected is accurately judged, so that the time for which the battery needs to be fully infiltrated is accurately determined.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a flow chart of a method for detecting a battery soaking time according to an embodiment of the present application;
FIG. 2 is a graph showing the relationship between the static real time and the percentage of discharge capacity of a primary battery electrode set according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a device for detecting a battery soaking time according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a battery detection system according to an embodiment of the present application;
Fig. 5 is a schematic side view of a battery to be tested according to an embodiment of the present application;
fig. 6 is a schematic plan view of a battery to be tested according to an embodiment of the present application;
Fig. 7 is a schematic structural diagram of a primary battery pole group according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concept in any way, but to illustrate the inventive concept to those skilled in the art by reference to specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the following description of the embodiments, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the prior art, a battery after the completion of the infiltration process is generally disassembled, and whether the battery is sufficiently infiltrated at this time is determined by observing the degree of wetting inside the battery. However, since the electrolyte is colorless, it is difficult to accurately observe the humidity in the battery by naked eyes, and it is not possible to accurately determine how long it takes for the battery to be fully impregnated.
In order to solve the above problems, a method and an apparatus for detecting a battery infiltration time, an electronic device, and a storage medium according to embodiments of the present application, where the method includes: monitoring the voltages between the anode and the cathode of the primary battery electrode group in the process of carrying out infiltration treatment on the battery to be tested; when the voltage between the positive electrode and the negative electrode of the primary battery electrode set reaches a preset nominal voltage, determining that the to-be-measured battery is fully soaked in the horizontal direction, and recording a first soaking time; after the horizontal infiltration of the battery to be tested is determined to be sufficient, the discharge capacity of the primary battery electrode group is monitored; when the discharge capacity of the primary battery electrode group reaches a preset discharge capacity, determining that the to-be-measured battery is fully soaked in the thickness direction, and recording a second soaking time; and determining the total time length of full infiltration of the battery to be measured according to the first infiltration time and the second infiltration time. According to the method provided by the scheme, the impregnating effect of the primary battery electrode group embedded in the most difficult-to-infiltrate position preset in the battery to be detected is analyzed, and whether the battery to be detected is fully infiltrated after the battery to be detected is injected is accurately judged, so that the time for which the battery needs to be fully infiltrated is accurately determined.
The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
The embodiment of the application provides a battery infiltration time detection method which is applied to a battery detection system, wherein the battery detection system comprises a battery to be detected and a primary battery pole group, the primary battery pole group is embedded in a preset most difficult-to-infiltrate position of the battery to be detected, and the method is used for detecting the full infiltration total time length of the battery to be detected. The execution main body of the embodiment of the application is electronic equipment, such as a server, a desktop computer, a notebook computer, a tablet computer and other electronic equipment which can be used for detecting the infiltration time of the battery to be detected.
As shown in fig. 1, a flow chart of a method for detecting a battery infiltration time according to an embodiment of the present application is shown, where the method includes:
Step 101, monitoring the voltage between the positive electrode and the negative electrode of the primary battery electrode group in the process of soaking the battery to be tested.
Specifically, the to-be-measured battery embedded with the primary battery electrode group can enter a liquid injection process, liquid is injected into the to-be-measured battery, then the to-be-measured battery is put into an environment set by a normal process to stand, for example, the to-be-measured battery stands at a temperature of 25 ℃, the electrolyte is soaked, and at the moment, the beginning time of the soaking treatment of the to-be-measured battery is recorded.
Specifically, the positive and negative leads of the primary battery pole group may be connected to a preset electric energy meter in advance, so as to monitor the voltage between the positive and negative poles of the primary battery pole group based on the preset electric energy meter. The primary battery is a battery device which generates current through chemical reaction, and cannot be charged, and the battery pole group consists of a positive electrode, a negative electrode and a diaphragm, is in a non-injected state of the battery, and is also an assembly part of the battery.
Step 102, when the voltage between the positive electrode and the negative electrode of the primary battery electrode set reaches a preset nominal voltage, determining that the horizontal infiltration of the battery to be tested is sufficient, and recording a first infiltration time.
It should be noted that, the primary battery electrode group adopts: the CFx/Li (carbon fluoride/lithium) primary battery or MnO2/Li (manganese dioxide/lithium) primary battery is composed of positive electrodes mixed according to a certain proportion (for example, a main material conductive agent PVDF/PTFE=85:10:5) to prepare electrodes, the compacted surface density and the dimensions are the same, the counter electrodes adopt Li sheets, and a primary battery electrode group with a certain capacity (recommended < 1 Ah) is prepared, wherein the primary battery electrode group has the dimensions: thickness < 0.5mm, area = 4cm 2. As the primary battery pole group adopts a lithium battery, the positive and negative voltages of the lithium battery reach the preset nominal voltage after the lithium battery is fully immersed in the horizontal direction, the nominal voltages of different battery systems of the lithium battery are slightly different, and the preset nominal voltage is generally not lower than 3.0V.
Specifically, when the voltage between the anode and the cathode of the primary battery pole group reaches the preset nominal voltage corresponding to the primary battery pole group, the primary battery pole group is fully immersed in the horizontal direction. Because the primary battery electrode group is embedded in the preset most difficult-to-infiltrate position of the battery to be tested, under the condition that the primary battery electrode group is fully infiltrated in the horizontal direction, the battery to be tested is fully infiltrated in the horizontal direction, and the first infiltration time is recorded. The time difference between the first infiltration time and the start time of the infiltration treatment of the battery to be measured is the full infiltration time length in the horizontal direction of the battery to be measured.
And step 103, monitoring the discharge capacity of the primary battery electrode group after the horizontal infiltration of the battery to be tested is determined to be sufficient.
It should be noted that, since the adopted primary battery electrode set is a lithium battery, only discharge can be performed and charging can not be performed, so that in order to detect whether the primary battery electrode set is fully immersed in the thickness direction, the primary battery electrode set being immersed can be discharged so as to monitor the overall discharge capacity of the primary battery electrode set.
And 104, determining that the thickness direction of the battery to be tested is fully soaked when the discharge capacity of the primary battery electrode group reaches the preset discharge capacity, and recording the second soaking time.
The preset discharge capacity is determined according to the battery composition and the battery model of the primary battery pole group.
Specifically, when the discharge capacity of the primary battery electrode group reaches a preset discharge capacity, the primary battery electrode group is fully immersed in the thickness direction. Because the primary battery electrode group is embedded in the preset most difficult-to-infiltrate position of the battery to be tested, under the condition that the primary battery electrode group is fully infiltrated in the thickness direction, the battery to be tested is fully infiltrated in the thickness direction, and the second infiltration time is recorded. The time difference between the second soaking time and the first soaking time is the full soaking time length in the thickness direction of the battery to be tested.
Step 105, determining a total duration of sufficient infiltration of the battery to be measured according to the first infiltration time and the second infiltration time.
Specifically, the sufficient immersion time in the horizontal direction of the battery to be measured can be determined according to the first immersion time, the sufficient immersion time in the thickness direction of the battery to be measured can be determined according to the second immersion time, and the sum of the sufficient immersion time in the horizontal direction and the sufficient immersion time in the thickness direction of the battery to be measured is the total sufficient immersion time of the battery to be measured.
Further, in an embodiment, after determining the total duration of sufficient infiltration of the battery to be tested, subsequent infiltration treatment may be performed on the battery with the same model as the battery to be tested according to the total duration of sufficient infiltration, so as to ensure that the battery can be fully infiltrated.
On the basis of the above embodiment, as a practical manner, in one embodiment, after determining that the to-be-measured battery is sufficiently soaked in the horizontal direction, monitoring the discharge capacity of the primary battery electrode group includes:
step 1031, after determining that the horizontal direction of the battery to be tested is fully soaked, performing a discharging operation on the primary battery pole group based on a discharging device connected with the primary battery pole group;
step 1032 monitors the discharge capacity of the primary battery pole set during the discharge operation of the primary battery pole set.
As shown in fig. 2, a schematic diagram of a relationship function between the static real time and the percentage of discharge capacity of the primary battery electrode set according to the embodiment of the application is shown, where the static real time is the soaking time of the primary battery electrode set. Through connecting discharge equipment at the positive and negative electrode lead of former battery polar group, assess former battery polar group's discharge capacity, can test a plurality of batteries (like 3 batteries) in the former battery polar group every certain time in every interval, when the average discharge capacity of a plurality of batteries reaches former battery polar group and predetermines discharge capacity (namely reaches 100% discharge capacity), confirm that former battery polar group (the battery that awaits measuring) thickness direction infiltration is abundant. Wherein the primary battery pole group may include 15 batteries in total.
Specifically, in an embodiment, in order to improve the efficiency of monitoring the discharge capacity of the primary battery electrode group, so as to avoid repeatedly monitoring the discharge capacity of the primary battery electrode group when the primary battery electrode group certainly fails to reach the preset discharge capacity, the sufficient infiltration duration of the primary battery corresponding to the primary battery electrode group can be obtained; after the horizontal direction infiltration of the battery to be measured is determined to be sufficient, entering a state of waiting for the infiltration of the thickness direction of the battery to be measured; and when the time length in the state of waiting for the infiltration of the thickness direction of the battery to be measured reaches the full infiltration time length of the primary battery, performing discharge operation on the primary battery electrode group based on discharge equipment connected with the primary battery electrode group.
It should be noted that, the time length of full infiltration of the primary cell corresponding to the primary cell pole group is the total time length of full infiltration of the primary cell pole group, and the total time length of full infiltration of the primary cell pole group is almost equal to the time length of full infiltration in the thickness direction because the primary cell pole group is sheet-shaped, i.e. has a smaller area in the horizontal direction. In addition, since the primary battery electrode group is embedded in the preset most difficult-to-infiltrate position of the battery to be tested, the current primary battery electrode group cannot be fully infiltrated in the full infiltration time of the primary battery.
Specifically, in an embodiment, the primary battery pole group sample may be subjected to the infiltration treatment, so as to obtain a sample full infiltration time period of the primary battery pole group sample.
The primary battery pole group sample is the same as the primary battery pole group embedded into the battery to be tested.
Specifically, after the horizontal infiltration of the battery to be measured is determined to be sufficient, entering a state of waiting for the infiltration of the thickness direction of the battery to be measured, namely continuing the infiltration, and after the continuous infiltration time reaches the sufficient infiltration time of the primary battery, performing a discharging operation on the primary battery electrode group based on a discharging device connected with the primary battery electrode group so as to further judge whether the thickness direction of the primary battery electrode group currently positioned at the preset most difficult-to-infiltrate position is sufficiently infiltrated.
Specifically, in an embodiment, the discharge capacity of the primary battery pole group sample may be monitored during the infiltration process of the primary battery pole group sample; when the discharge capacity of the primary battery pole group sample reaches a preset discharge capacity, determining that the primary battery pole group sample is fully infiltrated, and recording sample infiltration time; and determining the sample full-infiltration time length of the primary battery pole group sample according to the starting time and the sample infiltration time of the primary battery pole group sample.
The principle of monitoring the discharge capacity of the primary battery electrode group sample is the same as that of the primary battery electrode group, specifically refer to the above embodiment, and will not be described herein again.
It should be noted that, by adopting the method provided by the embodiment of the application to detect the battery soaking time, the soaking effect in two dimensions can be shown, and because of the bonding reason of the battery pole group, the soaking effect in the thickness direction of the pole piece is affected by the soaking in the plane direction of the pole piece, therefore, the gradient analysis and the two-dimension analysis are more scientific and more effective to evaluate the battery soaking effect, the measured data by the method can guide the soaking time in the battery production process, and the circulation is carried out according to the soaking effects in different stages, so that the battery production time can be saved, the battery production efficiency can be improved, and the effect of generating the SEI film in the battery charging process can be ensured.
According to the method for detecting the battery soaking time, provided by the embodiment of the application, the voltage between the positive electrode and the negative electrode of the primary battery electrode group is monitored in the process of carrying out soaking treatment on the battery to be detected; when the voltage between the positive electrode and the negative electrode of the primary battery electrode set reaches a preset nominal voltage, determining that the to-be-measured battery is fully soaked in the horizontal direction, and recording a first soaking time; after the horizontal infiltration of the battery to be tested is determined to be sufficient, the discharge capacity of the primary battery electrode group is monitored; when the discharge capacity of the primary battery electrode group reaches a preset discharge capacity, determining that the to-be-measured battery is fully soaked in the thickness direction, and recording a second soaking time; and determining the total time length of full infiltration of the battery to be measured according to the first infiltration time and the second infiltration time. According to the method provided by the scheme, the infiltration effect of the primary battery electrode group embedded in the most difficult-to-infiltrate position preset in the battery to be detected is analyzed, whether the battery to be detected is sufficiently infiltrated after liquid injection is accurately judged, so that how long the battery needs to be sufficiently infiltrated is accurately determined, the detection result can be used as a judgment value of the circulation time of the same type of battery in the process, and the production efficiency of the battery is improved. And by detecting the positive and negative voltages and the discharge capacity of the primary battery pole group, the two dimensions fully evaluate the infiltration effect of the battery to be measured, systematically evaluate the infiltration of the plane direction of the pole piece of the battery to be measured and the infiltration of the thickness direction of the pole piece, improve the reliability of the detection result, and avoid repeatedly monitoring the discharge capacity of the primary battery pole group when the primary battery pole group certainly does not reach the preset discharge capacity by predetermining the full infiltration time length of the primary battery corresponding to the primary battery pole group, thereby improving the discharge capacity monitoring efficiency of the primary battery pole group.
The embodiment of the application provides a device for detecting the battery soaking time, which is used for executing the method for detecting the battery soaking time provided by the embodiment.
Fig. 3 is a schematic structural diagram of a device for detecting a battery immersion time according to an embodiment of the present application. The battery soak time detection device 30 includes: a first monitoring module 301, a first logging module 302, a second monitoring module 303, a second logging module 304 and a detection module 305.
The first monitoring module is used for monitoring the voltages between the anode and the cathode of the primary battery electrode group in the process of carrying out infiltration treatment on the battery to be tested; the first recording module is used for determining that the to-be-measured battery is fully soaked in the horizontal direction when the voltage between the anode and the cathode of the primary battery electrode group reaches a preset nominal voltage, and recording first soaking time; the second monitoring module is used for monitoring the discharge capacity of the primary battery pole group after the horizontal infiltration of the battery to be detected is determined to be sufficient; the second recording module is used for determining that the to-be-measured battery is fully soaked in the thickness direction when the discharge capacity of the primary battery electrode group reaches the preset discharge capacity, and recording second soaking time; and the detection module is used for determining the total time length of full infiltration of the battery to be detected according to the first infiltration time and the second infiltration time.
The specific manner in which the respective modules perform the operations of the battery soak time detection apparatus in this embodiment has been described in detail in the embodiments related to the method, and will not be described in detail here.
The device for detecting the battery soaking time provided by the embodiment of the application is used for executing the method for detecting the battery soaking time provided by the embodiment, and the implementation mode and the principle are the same and are not repeated.
The embodiment of the application provides a battery detection system for executing the battery soaking time detection method provided by the embodiment.
Fig. 4 is a schematic structural diagram of a battery detection system according to an embodiment of the present application. The battery detection system 40 includes the battery soaking time detection device 30, the battery 401 to be tested and the battery pole set 402 according to the above embodiments.
The primary battery pole group is embedded in a preset most difficult-to-infiltrate position of the battery to be tested; the battery soaking time detection device adopts the method provided by the embodiment to detect the full soaking total time length of the battery to be detected.
Specifically, in an embodiment, as shown in fig. 5, a schematic side view of a battery to be tested according to an embodiment of the present application is shown in fig. 6, and as shown in a schematic plane of the battery to be tested according to an embodiment of the present application, positive and negative electrode leads of a primary battery electrode group and positive and negative electrodes of the battery to be tested are in the same battery plane, so as to ensure that the horizontal direction and the thickness direction of the primary battery electrode group and the battery to be tested are consistent.
As shown in fig. 7, an exemplary schematic structure of a primary battery pole set according to an embodiment of the present application may use a copper wire (a copper wire body is insulated by a diaphragm) to connect an anode and a cathode of the primary battery pole set, protect the copper wire from short circuit, and lead out the copper wire to the outside of a battery to be tested, and after the battery to be tested is injected with liquid, the primary battery pole set implanted in the battery to be tested is fully immersed with the liquid injection time, and then the voltage of the primary battery in the battery to be tested is detected by a metal wire to determine the effect of immersing the electrolyte from the outside of the pole set to the inside. And discharging the electrolyte in the battery to be tested, and judging the infiltration effect of the electrolyte in the thickness direction of the pole piece through the discharge capacity. The specific material composition of the primary battery electrode group is referred to the above embodiments, and will not be described herein.
The embodiment of the application provides an electronic device for executing the method for detecting the battery soaking time.
Fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device 80 includes: at least one processor 81 and a memory 82.
The memory stores computer-executable instructions; at least one processor executes computer-executable instructions stored in the memory, causing the at least one processor to perform the method for detecting a battery soak time as provided in the above embodiments.
The implementation manner and principle of the electronic device provided by the embodiment of the present application are the same, and are not repeated.
The embodiment of the application provides a computer readable storage medium, wherein computer executable instructions are stored in the computer readable storage medium, and when a processor executes the computer executable instructions, the method for detecting the battery infiltration time provided by any embodiment is realized.
The storage medium including the computer executable instructions in the embodiments of the present application may be used to store the computer executable instructions of the battery infiltration time detection method provided in the foregoing embodiments, and the implementation manner and principle of the method are the same, and are not repeated.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform part of the steps of the methods according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to perform all or part of the functions described above. The specific working process of the above-described device may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (9)
1. The battery soaking time detection method is applied to a battery detection system, the battery detection system comprises a battery to be detected and a primary battery pole group, and the primary battery pole group is embedded in a preset most difficult-to-soak position of the battery to be detected, and is characterized by comprising the following steps:
Monitoring the voltages between the anode and the cathode of the primary battery electrode group in the process of carrying out infiltration treatment on the battery to be tested;
When the voltage between the positive electrode and the negative electrode of the primary battery electrode group reaches a preset nominal voltage, determining that the to-be-measured battery is fully soaked in the horizontal direction, and recording a first soaking time; the time difference between the first infiltration time and the beginning time of the infiltration treatment of the battery to be measured is the full infiltration time length of the battery to be measured in the horizontal direction;
After the horizontal infiltration of the battery to be tested is determined to be sufficient, monitoring the discharge capacity of the primary battery electrode group;
when the discharge capacity of the primary battery electrode group reaches a preset discharge capacity, determining that the to-be-measured battery is fully soaked in the thickness direction, and recording a second soaking time; the time difference between the second soaking time and the first soaking time is the full soaking time length in the thickness direction of the battery to be tested;
And taking the sum of the full infiltration time length in the horizontal direction and the full infiltration time length in the thickness direction of the battery to be measured as the full infiltration total time length of the battery to be measured.
2. The method of claim 1, wherein monitoring the discharge capacity of the battery cell stack after determining that the horizontal infiltration of the battery cell under test is sufficient comprises:
after the battery to be tested is fully soaked in the horizontal direction, carrying out discharging operation on the primary battery pole group based on discharging equipment connected with the primary battery pole group;
and monitoring the discharge capacity of the primary battery pole group in the process of performing discharge operation on the primary battery pole group.
3. The method according to claim 2, wherein the discharging operation of the battery cell stack based on the discharging device connected to the battery cell stack after the determination that the horizontal direction of the battery cell to be measured is sufficiently infiltrated comprises:
acquiring the full infiltration time length of the primary battery corresponding to the primary battery electrode group;
after the horizontal infiltration of the battery to be measured is determined to be sufficient, entering a state of waiting for the infiltration of the battery to be measured in the thickness direction;
And when the time length in the state of waiting for the infiltration of the thickness direction of the battery to be measured reaches the full infiltration time length of the primary battery, performing discharge operation on the primary battery electrode group based on discharge equipment connected with the primary battery electrode group.
4. The method of claim 3, wherein the obtaining a sufficient immersion time period for the corresponding galvanic cell of the galvanic cell pole group comprises:
carrying out infiltration treatment on the primary battery pole group sample; the primary battery pole group sample is the same as the primary battery pole group embedded into the battery to be tested in model;
Monitoring the discharge capacity of a primary battery pole group sample in the process of carrying out infiltration treatment on the primary battery pole group sample;
When the discharge capacity of the primary battery pole group sample reaches a preset discharge capacity, determining that the primary battery pole group sample is fully soaked, and recording sample soaking time;
And determining the sample full-infiltration time length of the primary battery pole group sample according to the starting time of infiltration treatment of the primary battery pole group sample and the sample infiltration time.
5. The utility model provides a battery infiltration time detection device, is applied to battery detecting system, battery detecting system includes battery and former battery polar group that awaits measuring, former battery polar group imbed in the battery's that awaits measuring predetermine the most difficult infiltration position, its characterized in that, the device includes:
The first monitoring module is used for monitoring the voltages between the positive electrode and the negative electrode of the primary battery electrode group in the process of carrying out infiltration treatment on the battery to be tested;
The first recording module is used for determining that the to-be-measured battery is fully soaked in the horizontal direction when the voltage between the positive electrode and the negative electrode of the primary battery electrode group reaches a preset nominal voltage, and recording a first soaking time; the time difference between the first infiltration time and the beginning time of the infiltration treatment of the battery to be measured is the full infiltration time length of the battery to be measured in the horizontal direction;
The second monitoring module is used for monitoring the discharge capacity of the primary battery pole group after the horizontal direction of the battery to be detected is fully soaked;
The second recording module is used for determining that the to-be-measured battery is fully soaked in the thickness direction when the discharge capacity of the primary battery electrode group reaches a preset discharge capacity, and recording second soaking time; the time difference between the second soaking time and the first soaking time is the full soaking time length in the thickness direction of the battery to be tested;
And the detection module is used for taking the sum of the full infiltration time length in the horizontal direction and the full infiltration time length in the thickness direction of the battery to be detected as the full infiltration total time length of the battery to be detected.
6. A battery detection system, which is characterized in that the battery detection system comprises a battery to be detected, a primary battery pole group and the battery soaking time detection device according to claim 5;
The primary battery electrode group is embedded in a preset most difficult-to-infiltrate position of the battery to be tested;
the battery soaking time detection device adopts the method as claimed in any one of claims 1-4 to detect the total time length of full soaking of the battery to be detected.
7. The system of claim 6, wherein the positive and negative leads of the battery cell stack are in the same cell plane as the positive and negative poles of the battery cell under test.
8. An electronic device, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing computer-executable instructions stored in the memory causes the at least one processor to perform the method of any one of claims 1 to 4.
9. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor implement the method of any of claims 1 to 4.
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