Battery, battery testing device and battery testing system

Abstract

The present application provides a battery, a battery detection device and a battery detection system. The battery includes a battery cell, and the battery cell includes a positive ear and a negative ear. The positive ear is provided with a first mounting hole, and the negative ear is provided with a second mounting hole. The first mounting hole is for inserting a first probe and receiving an input voltage from the first probe, and the second mounting hole is for inserting a second probe so that the negative ear outputs a voltage through the second probe. The battery detection device includes a first probe, a second probe and a detection unit, and the detection unit determines a short circuit between the positive ear and the negative ear in response to the output power supply voltage of the second probe. The detection system includes a battery and a battery detection device. The present application uses the first probe and the second probe to connect the battery and then detect whether the battery is abnormal, which reduces the detection cost, and cooperates with the detection unit to detect whether the battery is abnormal. There is no need to install a detection device on the battery, and the short circuit problem in the battery cell can be discovered as early as possible, reducing the scrap rate, and improving the detection efficiency and the safety of the detection process.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery, a battery detection device, and a battery detection system. Background Art

[0002] At present, in the production of batteries, due to problems in the manufacturing process of the battery cell, a short circuit occurs between the positive and negative ears of the battery cell. This short circuit problem will have a great impact on the subsequent battery production, and the final produced battery will be scrapped, thereby increasing production costs and scrap rates. The existing detection technology requires specific instruments to detect whether there is a short circuit between the positive and negative ears, and it cannot detect the short circuit problem between the positive and negative ears as early as possible, which not only increases the detection cost and scrap rate, but also reduces the detection efficiency and safety of the detection process. Summary of the invention

[0003] The embodiments of the present application provide a battery, a battery detection device, and a battery detection system, which can solve at least part of the above-mentioned technical problems.

[0004] In a first aspect, the present application provides a battery, comprising:

[0005] A battery cell, the battery cell comprising a positive electrode tab and a negative electrode tab;

[0006] The positive electrode ear is provided with a first mounting hole, and the negative electrode ear is provided with a second mounting hole. The first mounting hole is used for inserting a first probe when performing battery abnormality detection to electrically connect with the first probe and receive an input voltage from the first probe. The second mounting hole is used for inserting a second probe when performing battery abnormality detection to electrically connect with the second probe, so that when a short circuit occurs between the positive electrode ear and the negative electrode ear, the negative electrode ear outputs a voltage through the second probe to reflect that a short circuit currently occurs between the positive electrode ear and the negative electrode ear.

[0007] In a second aspect, the present application provides a battery detection device for detecting whether a battery is abnormal, wherein the battery comprises a battery cell, the battery cell comprises a positive electrode ear and a negative electrode ear, and the battery detection device comprises:

[0008] A first probe, used for connecting the positive electrode tab and inputting a supply voltage into the positive electrode tab to supply power to the battery cell during the battery detection process;

[0009] a second probe, connected to the negative electrode tab, and configured to output the power supply voltage received by the negative electrode tab from the positive electrode tab when a short circuit occurs between the positive electrode tab and the negative electrode tab, and not output the power supply voltage when a short circuit does not occur between the positive electrode tab and the negative electrode tab; and

[0010] The detection unit is used for determining whether a short circuit occurs between the positive electrode tab and the negative electrode tab or not in response to the second probe outputting a power supply voltage or not outputting a power supply voltage.

[0011] In a third aspect, the present application provides a battery detection system for detecting battery abnormalities, comprising:

[0012] Battery;

[0013] Battery testing device.

[0014] The present application provides a battery, a battery detection device, and a battery detection system. The battery includes a battery cell, and the battery cell includes a positive electrode ear and a negative electrode ear, wherein the positive electrode ear is provided with a first mounting hole, and the negative electrode ear is provided with a second mounting hole, the first mounting hole is used for inserting a first probe when performing battery abnormality detection, so as to be electrically connected to the first probe and receive an input voltage from the first probe, and the second mounting hole is used for inserting a second probe when performing battery abnormality detection, so as to be electrically connected to the second probe, so that when a short circuit occurs between the positive electrode ear and the negative electrode ear, the negative electrode ear outputs a voltage through the second probe to reflect that a short circuit currently occurs between the positive electrode ear and the negative electrode ear. The battery detection device is used to detect whether the battery is abnormal. The battery detection device includes a first probe, a second probe and a detection unit, which are used to connect the positive ear and input the power supply voltage to the positive ear during the battery detection process to power the battery cell. The second probe is used to connect the negative ear and output the power supply voltage received by the negative ear from the positive ear when there is a short circuit between the positive ear and the negative ear, and not output the power supply voltage when there is no short circuit between the positive ear and the negative ear. The detection unit is used to respond to the second probe outputting the power supply voltage or not outputting the power supply voltage, and determine whether there is a short circuit or no short circuit between the positive ear and the negative ear. The detection system includes a battery and a battery detection device. The present application uses the first probe and the second probe to connect the battery to detect whether the battery is abnormal, which reduces the detection cost, and cooperates with the detection unit to detect whether the battery is abnormal. There is no need to install detection equipment on the battery, and the short circuit problem between the positive ear and the negative ear can be discovered as early as possible, which reduces the scrap rate and improves the detection efficiency and the safety of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional schematic diagram of a battery in an embodiment of the present application.

[0017] Figure 2 Schematic diagram of the battery detection device in the embodiment of the present application.

[0018] Figure 3 It is a three-dimensional schematic diagram of connecting a first probe and a second probe to a battery in an embodiment of the present application.

[0019] Figure 4 This is a wiring diagram of a battery detection device and a battery cell in an embodiment of the present application.

[0020] Figure 5 This is a wiring diagram of a battery detection device and a battery cell in another embodiment of the present application.

[0021] Figure 6 FIG. 4 is a wiring diagram of a battery detection device and a battery in an embodiment of the present application.

[0022] Figure 7 It is an overall schematic diagram of the battery detection system in the embodiment of the present application.

[0023] Figure Number:

[0024] Battery - 100;

[0025] Battery cell-1; positive electrode ear-11; first mounting hole-111; negative electrode ear-12; second mounting hole-121; connector-13; housing-2;

[0026] Battery detection device-200; first probe-3; second probe-4; detection unit-5; controller-51; first pin-511; second pin-512; third pin-513; first relay-52; first coil-521; first normally open switch-522; second relay-53; second coil-531; second normally open switch-522; third relay-54; third coil-541; third normally open switch-542; DC power supply-6; positive terminal-61; negative terminal-62; third probe-7;

[0027] Battery Testing System-300. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings. The term "connection" in this application, unless otherwise specified, mainly refers to a physical structural connection, and may also include meanings such as direct connection or indirect connection when specified. The terms "first" and "second" in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the term "includes" and any variations thereof are intended to cover non-exclusive inclusions.

[0030] See also Figure 1 , Figure 1 1 is a three-dimensional schematic diagram of a battery 100 in an embodiment of the present application. The battery 100 includes a battery cell 1, and the battery cell 1 includes a positive electrode ear 11 and a negative electrode ear 12, wherein the positive electrode ear 11 is provided with a first mounting hole 111, and the negative electrode ear 12 is provided with a second mounting hole 121, the first mounting hole 111 is used for inserting a first probe when performing abnormal detection of the battery 100, so as to be electrically connected to the first probe and receive an input voltage from the first probe, and the second mounting hole 121 is used for inserting a second probe when performing abnormal detection of the battery 100, so as to be electrically connected to the second probe, so that when a short circuit occurs between the positive electrode ear 11 and the negative electrode ear 12, the negative electrode ear 12 outputs a voltage through the second probe to reflect that a short circuit currently occurs between the positive electrode ear 11 and the negative electrode ear 12.

[0031] Thus, a first mounting hole 111 and a second mounting hole 121 are provided on the positive electrode ear 11 and the negative electrode ear 12, and the first probe and the second probe are electrically connected, so as to input voltage and output voltage to reflect the short circuit between the positive electrode ear 11 and the negative electrode ear 12, thereby simplifying the detection method, reducing the detection difficulty, and saving the detection cost.

[0032] In some embodiments, the battery 100 further includes two connectors 13, which are respectively installed at the ends of one side of the first mounting hole 111 and the second mounting hole 121 to respectively connect the positive electrode ear 11 and the negative electrode ear 12, and the two connectors 13 are used to connect to the first probe and the second probe respectively when the first probe is inserted into the first mounting hole 111 and the second probe is inserted into the second mounting hole 121.

[0033] Therefore, the connecting member 13 can enable the first probe and the second probe to fully connect the positive electrode tab 11 and the negative electrode tab 12 to improve detection accuracy, and can also prevent damage to the positive electrode tab 11 and the negative electrode tab 12, thereby reducing consumables costs.

[0034] It is understandable that the connecting member 13 may be, but is not limited to, a small iron column, as long as the first probe and the second probe are sufficiently connected to the positive electrode tab 11 and the negative electrode tab 12 , and no limitation is made here.

[0035] Please also read Figure 2 and Figure 3 , Figure 2 is an overall schematic diagram of a battery detection device 200 in an embodiment of the present application, Figure 3 It is a three-dimensional schematic diagram of connecting the first probe 3 and the second probe 4 to the battery 100 in the embodiment of the present application. The battery detection device 200 is used to detect whether the battery 100 is abnormal. The battery 100 includes a battery cell 1, and the battery cell 1 includes a positive electrode ear 11 and a negative electrode ear 12. The battery detection device 200 includes a first probe 3, a second probe 4 and a detection unit 5. The first probe 3 is used to connect the positive electrode ear 11, and is used to input a power supply voltage to the positive electrode ear 11 during the detection of the battery 100 to supply power to the battery cell 1. The second probe 4 is used to connect the negative electrode ear 12, and is used to output the power supply voltage received by the negative electrode ear 12 from the positive electrode ear 11 when there is a short circuit between the positive electrode ear 11 and the negative electrode ear 12, and not output the power supply voltage when there is no short circuit between the positive electrode ear 11 and the negative electrode ear 12. The detection unit 5 is used to determine whether there is a short circuit or no short circuit between the positive electrode ear 11 and the negative electrode ear 12 in response to the second probe 4 outputting the power supply voltage or not outputting the power supply voltage.

[0036] Thus, the battery detection device 200 uses the first probe 3 and the second probe 4 to connect the battery cell 1 to input voltage and output voltage, and also combines the first probe 3 and the second probe 4 with the detection unit 5 to determine whether a short circuit occurs between the positive electrode ear 11 and the negative electrode ear 12 or not. No other equipment is required, which reduces the detection cost and improves the safety of the detection process. It can also detect whether the battery 100 is abnormal as early as possible, reduce the scrap rate, and ensure the quality of the finished product.

[0037] It can be understood that the first probe 3 and the second probe 4 can be made of metal conductive materials, and the shapes of the first probe 3 and the second probe 4 can be cylindrical, patch-shaped, etc., which are not limited here.

[0038] Please also read Figure 4 , Figure 4FIG. 2 is a connection diagram of a battery detection device 200 and a battery cell 1 in an embodiment of the present application. In some embodiments, the detection unit 5 includes a controller 51 and a first relay 52, the controller 51 includes a first pin 511, the first relay 52 is connected between the second probe 4 and the ground, the first relay 52 is also connected between the ground and the first pin 511 of the controller 51, the first relay 52 is used to conduct the connection between the ground and the first pin 511 of the controller 51 when the second probe 4 outputs the power supply voltage, so that the first pin 511 of the controller 51 receives a low-level signal, and disconnect the connection between the ground and the first pin 511 of the controller 51 when the second probe 4 does not output the power supply voltage, so that the first pin 511 of the controller 51 does not receive the low-level signal, wherein the controller 51 determines that a short circuit occurs between the positive ear 11 and the negative ear 12 when the first pin 511 receives the low-level signal, and determines that no short circuit occurs between the positive ear 11 and the negative ear 12 when the first pin 511 does not receive the low-level signal.

[0039] Thus, the first relay 52 and the controller 51 are used to detect whether a short circuit occurs between the positive electrode tab 11 and the negative electrode tab 12 , wherein the first relay 52 is used to respond to the short circuit condition, thereby reducing the detection cost and detection difficulty and improving the detection efficiency.

[0040] It is understandable that the controller 51 may be a PLC (Programmable Logic Controller), a single chip microcomputer, an industrial computer, etc., which is not limited here.

[0041] In some embodiments, Figure 4As shown, the first relay 52 includes a first coil 521 and a first normally open switch 522, the first coil 521 is connected between the second probe 4 and the ground terminal, the first normally open switch 522 is connected between the ground terminal and the first pin 511 of the controller 51, wherein the first normally open switch 522 is opened when the first coil 521 is powered off, and is closed when the first coil 521 is powered on, and when the second probe 4 is short-circuited between the positive ear 11 and the negative ear 12, the power supply voltage of the negative ear 12 is output to the first coil 521 to close the positive ear 11 and the negative ear 12. The first normally open switch 522 conducts the connection between the ground terminal and the first pin 511 of the controller 51, so that the first pin 511 of the controller 51 receives a low-level signal. When the second probe 4 is not short-circuited between the positive ear 11 and the negative ear 12, it will not output the supply voltage to the first coil 521 so that current flows through the first coil 521, so as to disconnect the first normally open switch 522 and disconnect the connection between the ground terminal and the first pin 511 of the controller 51, so that the first pin 511 of the controller 51 does not receive the low-level signal.

[0042] Thus, by powering on or off the first coil 521 to close or turn on the first normally open switch 522, a low-level signal is output to the first pin 511 of the controller 51 to determine whether there is a short circuit or no short circuit between the positive ear 11 and the negative ear 12, thereby reducing the detection cost and detection difficulty, improving the detection efficiency and accuracy, and also improving the safety of the detection process.

[0043] Specifically, a voltage is applied to both ends of the coil of the relay, so that current flows through the coil, thereby generating an electromagnetic effect to control the closing and opening of the switch in the relay.

[0044] In some embodiments, Figure 4 As shown, the battery detection device 200 also includes a DC power supply 6, which includes a positive terminal 61 and a negative terminal 62. The positive terminal 61 is connected to the positive electrode ear 11 to output a power supply voltage to the positive electrode ear 11, and the negative terminal 62 is connected to the ground.

[0045] Therefore, the DC power supply 6 outputs a supply voltage to the battery cell 1 to provide a detection environment and detection conditions for short circuit detection.

[0046] See also Figure 5 , Figure 5 FIG. 2 is a wiring diagram of a battery detection device 200 and a battery cell 1 in another embodiment of the present application. Figure 5As shown, the controller 51 includes a second pin 512, and the second pin 512 of the controller 51 is connected to the positive terminal 61 of the DC power supply 6. The second pin 512 is used to output a low-level signal or a high-level signal, so that the positive terminal 61 outputs a power supply voltage or stops outputting the power supply voltage. The detection unit 5 also includes a second relay 53, and the second relay 53 is connected between the second pin 512 and the positive terminal 61. The second relay 53 is also connected between the positive terminal 61 and the first probe 3. The second relay 53 is used to output the power supply voltage output by the positive terminal 61 to the positive ear through the first probe 3 when the positive terminal 61 outputs the power supply voltage, so as to power the battery cell 1, and when the positive terminal 61 stops outputting the power supply voltage, disconnect the path of the positive terminal 61 outputting the power supply voltage to the positive ear 11 through the first probe 3 to stop powering the battery cell 1.

[0047] Thus, the controller 51 controls the DC power supply 6 to output the supply voltage or stop outputting the supply voltage, and can be adjusted during the detection process as needed to make the battery detection device 200 more intelligent. In addition, the DC power supply 6 inputs the supply voltage to the battery cell 1 to provide a detection environment and detection conditions for short circuit detection.

[0048] In some embodiments, Figure 4 As shown, the aforementioned ground terminal can be replaced by the negative terminal 62 of the DC power supply 6 to output a low level signal to the second pin 512 of the controller 51 .

[0049] See also Figure 5 , Figure 5 FIG. 2 is a wiring diagram of a battery detection device 200 and a battery cell 1 in another embodiment of the present application. Figure 5As shown, the second relay 53 includes a second coil 531 and a second normally open switch 532, the second coil 531 is connected between the ground terminal and the positive terminal 61, and the second normally open switch 532 is connected between the first probe 3 and the positive terminal 61, wherein the second normally open switch 532 is opened when the second coil 531 is powered off, and is closed when the second coil 531 is powered on, and when the second pin 512 outputs a low level signal, the positive terminal 61 and the loop of the second coil 531 are connected, and the power supply voltage output by the positive terminal 61 makes the second coil 531 Current flows through the coil 531 to close the second normally open switch 532, and conducts the connection between the positive terminal 61 and the first probe 3, so that the positive ear 11 receives the power supply voltage through the first probe 3 to power the battery cell 1. When the second pin 512 outputs a high-level signal, the positive terminal 61 stops outputting the power supply voltage, and the second normally open switch 532 is disconnected, thereby disconnecting the connection path between the positive terminal 61 and the first probe 3, so that the positive ear 11 stops receiving the power supply voltage through the first probe 3 to stop powering the battery cell 1.

[0050] Thus, by outputting a voltage to the second coil 531 so that the second normally open switch 532 is closed, the DC power supply 6 inputs the supply voltage to the battery cell 1, so as to provide a detection environment and detection conditions for short circuit detection, thereby reducing the detection cost and detection difficulty, improving the detection efficiency and accuracy, and also improving the safety of the detection process.

[0051] Specifically, the controller 51 is an NPN type controller, and an NPN type transistor is arranged in the controller 51. The emitter of the NPN type transistor is connected to the ground, the collector of the NPN type transistor is connected to the high level end, and the second pin 512 is arranged on the connection path between the high level end and the collector. According to the switching characteristics of the NPN type transistor, when the controller 51 generates a first control signal, the NPN type transistor is turned on and the second pin 512 outputs a low level signal, or when the controller 51 generates a second control signal, the NPN type transistor is turned off and the second pin 512 outputs a high level signal.

[0052] As mentioned above, when the voltage at the high level end is equal to the power supply voltage output by the positive terminal 61, the NPN transistor is cut off and the second pin 512 outputs a high level signal, no voltage is generated on the second coil 531 due to the absence of a potential difference, the second coil 531 is powered off and the second normally open switch 532 is disconnected, and when the NPN transistor is cut off and the second pin 512 outputs a high level signal, a voltage is generated on the second coil 531 due to the potential difference, the second coil 531 is powered on and the second normally open switch 532 is turned on.

[0053] See also Figure 6 , Figure 6 FIG. 2 is a wiring diagram of a battery detection device 200 and a battery 100 in an embodiment of the present application. In some embodiments, Figure 6 As shown, the battery 100 also includes a shell 2, and the battery cell 1 is accommodated in the shell 2. The battery detection device 200 also includes a third probe 7, and the third probe 7 is connected to the shell 2 of the battery 100. The third probe 7 is used to output the voltage received by the shell 2 from the battery cell 1 when the shell 2 accommodates the battery cell 1 and the battery cell 1 is damaged.

[0054] Thus, after detecting that there is no short circuit between the positive electrode ear 11 and the negative electrode ear 12, the battery cell 1 is placed in the shell to form a battery 100. The battery detection device 200 performs a short circuit detection on the battery 100 formed after the battery cell 1 is shelled through the third probe 7 to detect whether there is conduction between the shell 2 and the battery cell 1, and further detect whether the battery cell 1 is damaged. The battery detection device 200 can not only detect the short circuit problem between the positive electrode ear 11 and the negative electrode ear 12 of the battery cell 1 before shelling, but also detect the short circuit problem caused by the damage of the battery cell 1 when entering the shell, thereby improving the utilization rate of the battery 100 detection equipment, effectively avoiding the process steps caused by short circuit defects, and reducing the detection cost.

[0055] It can be understood that the third probe 7 can be made of a metal conductive material, and the shape of the third probe 7 can be cylindrical, patch-shaped, etc., which is not limited here.

[0056] In some embodiments, Figure 6 As shown, the probe clamping mechanism clamps the third probe 7 and contacts one end of the third probe 7 to the outside of the housing 2 to connect to the housing 2 , so as to output the voltage received by the housing 2 from the battery cell 1 through the third probe 7 .

[0057] Thus, the third probe 7 is reliably connected to the shell 2 by contacting with the shell 2 through the probe clamping mechanism, and is not inserted into the shell 2. While achieving reliable connection, the fine adjustment operation of the depth and position of the third probe 7 in the shell 2 is reduced, thereby improving the detection efficiency.

[0058] In some embodiments, Figure 6 As shown, the detection unit 5 also includes a third relay 54, and the controller 51 also includes a third pin 513. The third relay 54 is connected between the third probe 7 and the ground terminal. The third relay 54 is also connected between the ground terminal and the third pin 513 of the controller 51. The third relay 54 is used to conduct the connection between the ground terminal and the third pin 513 of the controller 51 when the third probe 7 outputs a voltage, so that the third pin 513 of the controller 51 receives a low-level signal, and disconnect the connection between the ground terminal and the third pin 513 of the controller 51 when the third probe 7 does not output a voltage, so that the third pin 513 of the controller 51 does not receive the low-level signal, wherein the controller 51 determines that the battery cell 1 is damaged when the third pin 513 receives the low-level signal, and determines that the battery cell 1 is not damaged when the third pin 513 does not receive the low-level signal.

[0059] Therefore, the third relay 54 and the controller 51 are used to detect whether the battery cell 1 is damaged, and the third relay 54 is used to respond to the damage of the battery cell 1, thereby reducing the detection cost and detection difficulty and improving the detection efficiency.

[0060] Specifically, the battery core 1 ruptures the outer insulating layer due to its own thermal expansion, or is scratched by the shell 2 during the process of being housed in the shell 2, and the shell 2 is made of a metallic conductive material, so that the battery core 1 is connected to the shell 2, and the shell 2 receives voltage.

[0061] In some embodiments, Figure 6As shown, the third relay 54 includes a third coil 541 and a third normally open switch 542, wherein the third coil 541 is connected between the third probe 7 and the ground terminal, and the third normally open switch 542 is connected between the ground terminal and the third pin 513 of the controller 51, wherein the third normally open switch 542 is opened when the third coil 541 is powered off, and is closed when the third coil 541 is powered on, and when the third probe 7 is damaged and accommodated in the housing 2, the voltage is output to the third coil 541 so that the third coil Current flows through 541 to close the third normally open switch 542 and conduct the connection between the ground terminal and the third pin 513 of the controller 51, so that the third pin 513 of the controller 51 receives a low-level signal. When the battery cell 1 is not damaged and accommodated in the shell 2, the third probe 7 does not output voltage to the third coil 541 to disconnect the third normally open switch 542 and disconnect the connection between the ground terminal and the third pin 513 of the controller 51, so that the third pin 513 of the controller 51 does not receive the low-level signal.

[0062] Thus, by powering on or off the third coil 541 to close or turn on the third normally open switch 542, a low-level signal is output to the third pin 513 of the controller 51 to determine whether the battery cell 1 is damaged or not, thereby reducing the detection cost and detection difficulty, improving the detection efficiency and accuracy, and also improving the safety of the detection process.

[0063] In some embodiments, the battery detection device 200 also includes a human-machine operation interface, which is used to input operation instructions. The controller 51 is used to generate a control signal according to the operation instruction and control the second pin 512 to output a low level signal or a high level signal according to the control signal. The controller 51 is also used to control the time when the second pin 512 outputs a low level signal or a high level signal.

[0064] Thus, the operator can modify various parameters in the human-machine operation interface, and then realize various functions through the controller 51, thereby realizing human-machine interaction, increasing the convenience of operation, and making the use of the battery detection device 200 more flexible.

[0065] In some embodiments, the human-machine interface is a touch screen.

[0066] Among them, the functions of the human-machine operation interface include starting or disabling the battery detection device 200, setting the detection time of the battery detection device 200, and setting high-level permissions, etc. The high-level permissions are mainly set and limited by the corresponding operable functions according to the roles played by different operators in the detection process to prevent operators from accidentally touching or making operating errors.

[0067] Furthermore, the operating user can also set the operation mode to the manual mode on the human-machine operation interface.

[0068] As mentioned above, the operator can manually adjust and verify the position and insertion depth of the first probe 3, the second probe 4 and the third probe 7, and apply the optimal parameters to the automatic inspection to improve the detection accuracy.

[0069] Furthermore, the disabling function of the battery detection device 200 can disable the battery detection device 200 in a timely manner when the battery detection device 200 is unstable or fails, thereby avoiding misjudgment and mistakenly discharging batteries 100 or cells 1 that meet the standards.

[0070] In some embodiments, the controller 51 is also used to mark the currently detected battery cell 1 or battery 100 when the battery 100 is abnormal. The battery detection device 200 also includes an MES (Manufacturing Execution System). The controller 51 sends information of the marked battery cell 1 or battery 100 to the MES so that the MES disposes of the marked battery cell 1 or battery 100.

[0071] Thus, when a short circuit occurs between the positive electrode ear 11 and the negative electrode ear 12 of the battery cell 1 or the battery cell 1 of the battery 100 is damaged after being encased, the battery cell 1 and the battery 100 currently being tested will be marked so that the MES can discharge them into a designated area, thereby reducing the scrap rate of the final product; and the operator takes away the scrap in the designated waste discharge area and conducts a re-inspection to investigate the cause of the short circuit between the positive electrode ear 11 and the negative electrode ear 12 of the battery cell 1 and the cause of the damage to the battery cell 1, so as to timely adjust the technical parameters of the battery 100 production line, reduce losses, and thereby reduce production costs.

[0072] In some embodiments, the DC power supply 6 is a 24V DC power supply.

[0073] Therefore, the 24V DC power supply will not cause harm to the human body due to excessive high voltage, thereby ensuring the safety of the detection process.

[0074] Please also read Figure 7 , Figure 7 1 is an overall schematic diagram of a battery detection system 300 in an embodiment of the present application. The battery detection system 300 is used to detect abnormalities in a battery 100, and the battery detection system 300 includes the aforementioned battery 100 and the aforementioned battery detection device 200. The battery detection device 200 is connected to the battery 100 to detect whether the battery 100 is abnormal.

[0075] Therefore, only the battery detection system 300 is needed to determine whether a short circuit occurs between the positive electrode ear 11 and the negative electrode ear 12 or not, without the need for other equipment, thereby reducing the detection cost and improving the safety of the detection process. It is also possible to detect whether the battery 100 is abnormal as early as possible, reduce the scrap rate, and ensure the quality of the finished product.

[0076] Specifically, more specific contents of the battery detection device 200 and the battery 100 can be found in the description of the aforementioned embodiments, which will not be repeated here.

[0077] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application; in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A battery, characterized in that: include: A battery cell, comprising a positive electrode tab and a negative electrode tab; The positive tab is provided with a first mounting hole, and the negative tab is provided with a second mounting hole. The first mounting hole is used for inserting a first probe when performing battery abnormality detection, so as to be electrically connected to the first probe and receive an input voltage from the first probe. The second mounting hole is used for inserting a second probe when performing battery abnormality detection, so as to be electrically connected to the second probe, so that when a short circuit occurs between the positive tab and the negative tab, the negative tab outputs a voltage through the second probe to reflect that a short circuit currently occurs between the positive tab and the negative tab.

2. The battery according to claim 1, characterized in that The battery also includes two connectors, which are respectively installed at the ends of one side of the first mounting hole and the second mounting hole to respectively connect the positive electrode tab and the negative electrode tab. The two connectors are used to connect to the first probe and the second probe respectively when the first probe is inserted into the first mounting hole and the second probe is inserted into the second mounting hole.

3. A battery detection device for detecting whether a battery is abnormal, wherein the battery comprises a battery cell, and the battery cell comprises a positive electrode tab and a negative electrode tab, characterized in that: include: a first probe, configured to be connected to the positive tab and to input a supply voltage to the positive tab during battery testing to supply power to the battery cell; a second probe, connected to the negative electrode tab, and configured to output the supply voltage received by the negative electrode tab from the positive electrode tab when a short circuit occurs between the positive electrode tab and the negative electrode tab, and not output the supply voltage when no short circuit occurs between the positive electrode tab and the negative electrode tab; as well as The detection unit is configured to determine whether a short circuit occurs between the positive electrode tab and the negative electrode tab in response to the second probe outputting a supply voltage or not outputting a supply voltage.

4. The battery detection device according to claim 3, characterized in that: The detection unit includes a controller and a first relay, the controller includes a first pin, the first relay is connected between the second probe and the ground terminal, the first relay is also connected between the ground terminal and the first pin of the controller, the first relay is used to conduct the connection between the ground terminal and the first pin of the controller when the second probe outputs the power supply voltage, so that the first pin of the controller receives a low-level signal, and to disconnect the connection between the ground terminal and the first pin of the controller when the second probe does not output the power supply voltage, so that the first pin of the controller does not receive the low-level signal, wherein the controller determines that a short circuit occurs between the positive ear and the negative ear when the first pin receives a low-level signal, and determines that no short circuit occurs between the positive ear and the negative ear when the first pin does not receive a low-level signal.

5. The battery detection device according to claim 4, characterized in that: The first relay includes a first coil and a first normally-open switch, wherein the first coil is connected between the second probe and the ground terminal, and the first normally-open switch is connected between the ground terminal and the first pin of the controller, wherein the first normally-open switch is opened when the first coil is powered off and closed when the first coil is powered on. When the second probe is short-circuited between the positive ear and the negative ear, the second probe outputs the supply voltage of the negative ear to the first coil so that current flows through the first coil, thereby closing the first normally-open switch and conducting the connection between the ground terminal and the first pin of the controller, so that the first pin of the controller receives a low-level signal. When the second probe is not short-circuited between the positive ear and the negative ear, the second probe does not output the supply voltage to the first coil, thereby disconnecting the first normally-open switch and disconnecting the connection between the ground terminal and the first pin of the controller, so that the first pin of the controller does not receive a low-level signal.

6. The battery detection device according to claim 4, characterized in that: The battery detection device further includes a DC power supply, which includes a positive terminal and a negative terminal. The positive terminal is connected to the positive tab to output a supply voltage to the positive tab, and the negative terminal is connected to the ground.

7. The battery detection device according to claim 6, characterized in that: The controller includes a second pin, which is connected to the positive terminal of the DC power supply. The second pin is used to output a low-level signal or a high-level signal, so that the positive terminal outputs the supply voltage or stops outputting the supply voltage. The detection unit also includes a second relay, which is connected between the second pin and the positive terminal. The second relay is also connected between the positive terminal and the first probe. The second relay is used to output the supply voltage output by the positive terminal to the positive ear through the first probe when the positive terminal outputs the supply voltage, so as to power the battery cell, and to disconnect the path of the positive terminal outputting the supply voltage to the positive ear through the first probe when the positive terminal stops outputting the supply voltage, so as to stop powering the battery cell.

8. The battery detection device according to claim 7, characterized in that: The second relay includes a second coil and a second normally-open switch, the second coil is connected between the ground terminal and the positive terminal, and the second normally-open switch is connected between the first probe and the positive terminal, wherein the second normally-open switch is opened when the second coil is powered off and closed when the second coil is powered on; when the second pin outputs a low-level signal, the loop between the positive terminal and the second coil is connected, and the power supply voltage output by the positive terminal causes current to flow through the second coil to close the second normally-open switch and conduct the connection between the positive terminal and the first probe, so that the positive ear receives the power supply voltage through the first probe to power the battery cell; when the second pin outputs a high-level signal, the positive terminal stops outputting the power supply voltage, and the second normally-open switch is opened, thereby disconnecting the path connecting the positive terminal and the first probe, so that the positive ear stops receiving the power supply voltage through the first probe to stop powering the battery cell.

9. The battery detection device according to claim 4, characterized in that: The battery further includes a shell in which the battery cell is housed. The battery detection device further includes a third probe connected to the battery shell. The third probe is configured to output the voltage received by the shell from the battery cell when the battery cell is damaged.

10. The battery detection device according to claim 9, characterized in that: The probe clamping mechanism clamps the third probe and contacts one end of the third probe with the outer side of the housing to connect with the housing, so as to output the voltage received by the housing from the battery cell through the third probe.

11. The battery detection device according to claim 10, characterized in that: The detection unit also includes a third relay, and the controller also includes a third pin. The third relay is connected between the third probe and the ground terminal, and the third relay is also connected between the ground terminal and the third pin of the controller. The third relay is used to conduct the connection between the ground terminal and the third pin of the controller when the third probe outputs a voltage, so that the third pin of the controller receives a low-level signal, and to disconnect the connection between the ground terminal and the third pin of the controller when the third probe does not output a voltage, so that the third pin of the controller does not receive the low-level signal. The controller determines that the battery cell is damaged when the third pin receives the low-level signal, and determines that the battery cell is not damaged when the third pin does not receive the low-level signal.

12. The battery detection device according to claim 11, characterized in that: The third relay includes a third coil and a third normally-open switch, wherein the third coil is connected between the third probe and the ground terminal, and the third normally-open switch is connected between the ground terminal and the third pin of the controller, wherein the third normally-open switch is opened when the third coil is powered off and is closed when the third coil is powered on. When the battery cell is damaged and housed in the shell, the third probe outputs the supply voltage to the third coil so that current flows through the third coil, thereby closing the third normally-open switch and conducting the connection between the ground terminal and the third pin of the controller, so that the third pin of the controller receives a low-level signal. When the battery cell is not damaged and housed in the shell, the third probe does not output the supply voltage to the third coil, thereby disconnecting the third normally-open switch and disconnecting the connection between the ground terminal and the third pin of the controller, so that the third pin of the controller does not receive the low-level signal.

13. The battery detection device according to claim 7, characterized in that: The battery detection device also includes a human-machine operation interface, which is used to input operation instructions. The controller is used to generate a control signal according to the operation instruction and control the second pin to output a low-level signal or a high-level signal according to the control signal. The controller is also used to control the time when the second pin outputs the low-level signal or the high-level signal.

14. The battery detection device according to claim 13, characterized in that: The controller is also used to mark the currently detected battery cell or battery when the battery is abnormal. The battery detection device also includes an MES. The controller sends information about the marked battery cell or battery to the MES so that the MES disposes of the marked battery cell or battery.

15. The battery detection device according to claim 6, characterized in that: The DC power supply is a 24V DC power supply.

16. A battery detection system for detecting battery abnormalities, characterized in that: include: The battery according to claim 1 or 2; The battery detection device according to any one of claims 3 to 15.

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