Chip assembly for battery, battery, energy storage equipment and electric equipment

Abstract

The utility model discloses a chip assembly used for a battery, the battery, an energy storage device and an electric device, the chip assembly used for the battery comprises a chip, a positive pole piece and a negative pole piece, the chip comprises a circuit structure and a detection structure, the circuit structure is provided with an integrated circuit, and the detection structure is electrically connected with the circuit structure; one end of the anode piece is electrically connected with the circuit structure, and the other end of the anode piece is suitable for being connected with the anode of the battery; one end of the cathode piece is electrically connected with the circuit structure, and the other end of the cathode piece is suitable for being connected with the cathode of the battery. According to the battery, the chip assembly is connected with the positive electrode of the battery through the positive electrode piece, the chip assembly is connected with the negative electrode of the battery through the negative electrode piece, a closed loop is formed between the chip assembly and the battery, the pole core of the battery can supply power to the chip assembly, an integrated self-power-supply structure is formed, and the integration degree of the battery and the chip assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, and in particular to a chip assembly for batteries, a battery, an energy storage device and an electrical device. Background Art

[0002] Power batteries are the key to the development of new energy vehicles. With the accelerated development of vehicle electrification transformation, the cycle life and safety of power batteries have become the key constraints to the large-scale popularization of electric vehicles.

[0003] In the related art, the power battery management system usually only adopts the technical solution of an external detection device, which can monitor the battery status. In order to make the battery structure more compact, some technical solutions place the detection device at the battery cell. However, the detection device in the related art requires external power supply or connection to an external power supply to achieve effective detection. As a result, the integration degree of the detection device and the battery is relatively low, which has room for improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, the utility model proposes a chip assembly for a battery, which can be electrically connected to the battery to form an integrated self-powered battery chip assembly, thereby improving the integration of the battery and the chip assembly.

[0005] The utility model also provides a battery.

[0006] The utility model also provides an energy storage device.

[0007] The utility model also provides an electric device.

[0008] The chip assembly for a battery according to an embodiment of the utility model comprises a chip, a positive electrode and a negative electrode. The chip comprises a circuit structure and a detection structure, wherein the detection structure is electrically connected to the circuit structure; one end of the positive electrode is electrically connected to the circuit structure, and the other end of the positive electrode is suitable for connecting to the positive electrode of the battery; one end of the negative electrode is electrically connected to the circuit structure, and the other end of the negative electrode is suitable for connecting to the negative electrode of the battery.

[0009] According to the chip assembly of the embodiment of the utility model, the chip assembly is connected to the positive electrode of the battery through the positive electrode component, and the chip assembly is connected to the negative electrode of the battery through the negative electrode component, forming a closed circuit between the chip assembly and the battery. The battery core can supply power to the chip assembly to form an integrated self-powered battery chip assembly, thereby improving the degree of integration between the battery and the chip assembly.

[0010] In some embodiments, the chip further includes a wireless transmission structure, which is electrically connected to the circuit structure, and the wireless transmission structure is at least used to transmit the signal detected by the detection structure to an external device via wireless communication.

[0011] In some embodiments, the positive electrode component is electrically connected to the circuit structure via a first conductive wire; and / or the negative electrode component is electrically connected to the circuit structure via a second conductive wire.

[0012] In some embodiments, an outer surface of the first conductive wire is coated with an insulating layer, and an outer surface of the second conductive wire is coated with an insulating layer.

[0013] In some embodiments, the chip also includes a chip shell, the circuit structure and the detection structure are arranged in the chip shell, the other end of the positive electrode piece and the other end of the negative electrode piece are both located outside the chip shell, and the outer surface of the chip shell is covered with an insulating layer.

[0014] In some embodiments, the length of each of the positive electrode member and the negative electrode member ranges from 0.3 cm to 200 cm; and / or, the width of each of the positive electrode member and the negative electrode member ranges from 0.2 cm to 50 cm; and / or, the thickness of each of the positive electrode member and the negative electrode member ranges from 0.2 mm to 5 cm.

[0015] In some embodiments, the volume range of the chip is 5 mm 3 -100cm 3 ; and / or, the weight range of the chip is 1 mg-100 g.

[0016] In some embodiments, the chip is in the shape of a cuboid, a cube, or a polyhedron.

[0017] In some embodiments, the detection structure includes a detection band, one end of the detection band is connected to the circuit structure, and the other end of the detection band extends outside the circuit structure.

[0018] In some embodiments, the length of the detection tape ranges from 0.5 cm to 100 cm; and / or, the width of the detection tape ranges from 0.2 cm to 5 cm; and / or, the thickness of the detection tape ranges from 0.2 mm to 1 cm.

[0019] The battery according to the embodiment of the utility model comprises a battery housing, a pole core and a chip assembly according to the embodiment of the utility model. The battery housing is provided with a positive pole column and a negative pole column; the chip assembly is arranged in the battery housing; the pole core is arranged in the battery housing, the pole core has a positive pole tab and a negative pole tab, the positive pole piece and the positive pole tab are connected to the positive pole column, and the negative pole piece and the negative pole tab are connected to the negative pole column.

[0020] According to the battery of the embodiment of the utility model, by arranging the chip assembly inside the battery housing, the chip assembly can monitor a single battery, and can achieve high-precision evaluation and safety warning of the working state and health state of the battery, thereby greatly improving the safety performance of the battery. In addition, the chip assembly is connected to the positive pole of the battery through the positive electrode, and the chip assembly is connected to the negative pole of the battery through the negative electrode. A closed loop is formed between the chip assembly and the pole core of the battery. The pole core of the battery can supply power to the chip assembly, forming an integrated self-powered battery chip assembly, and improving the degree of integration between the battery and the chip assembly. In addition, the positive electrode and the positive pole ear are connected to the positive pole, and the negative electrode and the negative pole ear are connected to the negative pole. On the one hand, the internal structure of the battery can be made more compact and the internal space utilization of the battery can be improved; on the other hand, the pole core can be monitored to improve the accuracy of the evaluation and the safety of the battery.

[0021] In some embodiments, the battery case includes a case body, a positive electrode cover plate and a negative electrode cover plate, the positive electrode cover plate is arranged at one end of the case body, the positive electrode column is arranged on the positive electrode cover plate, the negative electrode cover plate is arranged at the other end of the case body, and the negative electrode column is arranged on the negative electrode cover plate; the positive electrode component is arranged on the positive electrode column side, the negative electrode component is arranged on the negative electrode column side, and the chip is arranged on the positive electrode column side or the negative electrode column side or between the positive electrode column and the negative electrode column.

[0022] The energy storage device according to the embodiment of the utility model includes a plurality of batteries according to the embodiment of the utility model.

[0023] According to the energy storage device of the embodiment of the utility model, by setting the above-mentioned battery, the chip assembly is set inside the battery housing, and the chip assembly can monitor a single battery, and can achieve high-precision evaluation and safety warning of the working state and health state of the battery, thereby greatly improving the safety performance of the battery. In addition, the chip assembly is connected to the positive pole of the battery through the positive electrode, and the chip assembly is connected to the negative pole of the battery through the negative electrode. A closed loop is formed between the chip assembly and the pole core of the battery. The pole core of the battery can power the chip assembly to form an integrated self-powered battery chip assembly, thereby improving the degree of integration between the battery and the chip assembly. In addition, the positive electrode, the positive pole ear is connected to the positive pole, and the negative electrode, the negative pole ear is connected to the negative pole. On the one hand, the internal structure of the battery can be made more compact and the internal space utilization of the battery can be improved; on the other hand, the pole core can be monitored to improve the accuracy of the evaluation and the safety of the battery.

[0024] The electrical equipment according to the embodiment of the utility model includes the energy storage device according to the embodiment of the utility model.

[0025] According to the electrical equipment of the embodiment of the utility model, by setting the above-mentioned energy storage device, the chip assembly is set inside the battery housing, and the chip assembly can monitor a single battery, and can achieve high-precision evaluation and safety warning of the working state and health state of the battery, thereby greatly improving the safety performance of the battery. In addition, the chip assembly is connected to the positive pole of the battery through the positive electrode, and the chip assembly is connected to the negative pole of the battery through the negative electrode. A closed loop is formed between the chip assembly and the pole core of the battery. The pole core of the battery can supply power to the chip assembly, forming an integrated self-powered battery chip assembly, and improving the degree of integration between the battery and the chip assembly. In addition, the positive electrode, the positive pole ear is connected to the positive pole, and the negative electrode, the negative pole ear is connected to the negative pole. On the one hand, the internal structure of the battery can be made more compact and the internal space utilization of the battery can be improved; on the other hand, the pole core can be monitored to improve the accuracy of the evaluation and the safety of the battery.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of a chip assembly according to an embodiment of the utility model;

[0028] Figure 2 is a schematic diagram of a chip assembly including a first conductive line according to an embodiment of the utility model;

[0029] Figure 3 is a schematic diagram of a chip assembly including a second wire according to an embodiment of the utility model;

[0030] Figure 4 is a schematic diagram of a chip assembly including a first conductive line and a second conductive line according to an embodiment of the utility model;

[0031] Figure 5 is a schematic diagram of a chip assembly including a detection band according to an embodiment of the utility model;

[0032] Figure 6 It is a schematic diagram of the connection between the chip assembly including the second wire and the pole core according to an embodiment of the utility model;

[0033] Figure 7 It is a schematic diagram of the connection between the chip assembly including the first wire and the pole core according to an embodiment of the utility model;

[0034] Figure 8 It is a schematic diagram of the connection between a chip assembly including a first wire and a second wire and a pole core according to an embodiment of the utility model;

[0035] Fig. 9 is a schematic diagram of a battery according to an embodiment of the utility model;

[0036] Fig.10 is a schematic diagram of an energy storage device according to an embodiment of the utility model;

[0037] Fig.11 It is a schematic diagram of an electrical device according to an embodiment of the utility model.

[0038] Reference numerals:

[0039] 2000 electrical equipment, 1000 energy storage equipment;

[0040] Chip assembly 100, battery 200;

[0041] Chip 10, positive electrode 101, negative electrode 102, first wire 11, second wire 12, detection belt 13;

[0042] Electrode core 20, positive electrode tab 201, negative electrode tab 202, positive electrode cover plate 21, positive electrode column 211, negative electrode cover plate 22, negative electrode column 222;

[0043] Insulating layer 30. DETAILED DESCRIPTION

[0044] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0045] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] Combine the following Figure 1-Figure 11 The chip assembly 100 for the battery 200 according to the embodiment of the present invention is described in detail.

[0047] Reference Figure 1 , Figure 4 As shown, the chip assembly 100 for the battery 200 according to the embodiment of the present invention includes a chip 10 , a positive electrode member 101 and a negative electrode member 102 .

[0048] The circuit structure has an integrated circuit, and the detection structure is electrically connected to the circuit structure, specifically to the integrated circuit on the circuit structure. Thus, electrical signals can be transmitted between the detection structure and the circuit structure, thereby detecting the internal condition of the battery 200.

[0049] Optionally, the circuit structure may be a circuit board or a thin film circuit or other forms of circuit structures.

[0050] It should be further explained that the detection structure can be a temperature sensor and its associated connectors to detect the temperature of the battery 200; the detection structure can be a stress detection device to detect the stress condition inside the battery 200; the detection structure can also be an air pressure detection device to detect the air pressure inside the battery 200. That is to say, according to different monitoring contents and requirements, the detection structure inside the chip 10 can be replaced according to different test requirements. Therefore, the detection structure includes but is not limited to a temperature sensor, a stress detection device, and an air pressure detection device.

[0051] Combination Figure 6-Figure 8 As shown, one end of the positive electrode 101 is electrically connected to the circuit structure, and the other end of the positive electrode 101 can be connected to the positive electrode column 211 of the battery 200; one end of the negative electrode 102 is electrically connected to the circuit structure, and the other end of the negative electrode can be connected to the negative electrode column 222 of the battery 200. Thus, the detection structure is electrically connected to the circuit structure, and the circuit structure and the battery 200 are electrically connected through the positive electrode 101 and the negative electrode 102, that is, the battery 200 can supply power to the detection structure, and then the battery 200 can supply power to the chip assembly 100.

[0052] In the related art, the detection structure realizes effective detection by external power supply or electrical connection with an external power source; in the present application, the battery 200 can supply power to the detection structure, and the battery 200 and the chip assembly 100 form an integrated self-powered battery chip assembly, without the need to set up an external power source to power the chip assembly 100, thereby improving the integration of the battery 200 and the chip assembly 100.

[0053] It should be pointed out that the average power consumption of the chip component 100 during normal operation is between 1mW-100mW, and the power consumption during sleep is between 1μW-100μW. The average power consumption of the chip component 100 is much smaller than the average power consumption of the battery 200 during operation. The average power consumption loss of the chip component 100 has a negligible effect on the battery 200.

[0054] According to the chip assembly 100 of the embodiment of the utility model, the chip assembly 100 is connected to the positive electrode column 211 of the battery 200 through the positive electrode component 101, and the chip assembly 100 is connected to the negative electrode column 222 of the battery 200 through the negative electrode component 102. A closed circuit is formed between the chip assembly 100 and the battery 200. The pole core 20 of the battery 200 can supply power to the chip assembly 100, forming an integrated self-powered battery chip assembly, thereby improving the degree of integration between the battery 200 and the chip assembly 100.

[0055] In some embodiments, the chip 10 further includes a wireless transmission structure. The wireless transmission structure can be electrically connected to the circuit structure, and the wireless transmission structure can transmit signals by wireless communication. The wireless transmission structure is at least used to transmit signals to an external device, and the transmitted signals may include signals detected by the detection structure, or the signals may include circuit structure status signals of the chip assembly 100 and signals detected by the detection structure. By setting up a wireless transmission structure to transmit signals, no additional connecting wires are required to be led out from the inside of the battery 200, so there is no need to open a hole in the battery housing structure to pass the connecting wires, which is beneficial to improving the overall sealing of the battery 200.

[0056] In some embodiments, the wireless transmission structure can transmit the signal to the external device at preset intervals. Or in other embodiments, the wireless transmission structure further includes a receiving module and a transmission module, and the transmission module transmits the signal to the external device only when the receiving module receives a trigger command from the external device.

[0057] Optionally, the communication mode of the wireless transmission structure can be 4G communication, 5G communication or Bluetooth, etc.

[0058] For example, the communication rate of the chip 10 is between 2 Mbps and 10 Mbps, the stable communication distance is between 0.1 m and 1000 m, and the transmission delay is less than 10 ms.

[0059] like Figure 2-Figure 4As shown, in some embodiments, the positive electrode 101 is electrically connected to the circuit structure through a first wire 11; and / or, the negative electrode 102 is electrically connected to the circuit structure through a second wire 12. The connection between the circuit structure and the positive electrode 101 and between the circuit structure and the negative electrode 102 can be achieved by either a direct connection or a wire switching solution. By using a wire switching method, the installation position of the chip 10 and the circuit structure can be made more flexible, and the positions of the positive electrode 101 and the negative electrode 102 do not need to be too close, and can be adjusted according to different battery 200 types and monitoring types, thereby improving the adaptability of the chip assembly 100.

[0060] like Figure 2 As shown, for example, the positive electrode member 101 can be electrically connected to the circuit structure through the first wire 11, and the negative electrode member 102 is directly connected to the circuit structure.

[0061] like Figure 3 As shown, for example, the positive electrode member 101 can be directly connected to the circuit structure, and the negative electrode member 102 can be connected to the circuit structure through the second wire 12 .

[0062] like Figure 4 As shown, for example, the positive electrode member 101 can be connected to the circuit structure via a first wire 11 , and the negative electrode member 102 can be connected to the circuit structure via a second wire 12 .

[0063] It should be further explained that the first conductive wire 11 and the second conductive wire 12 can be made of one or a combination of copper, silver, aluminum and some alloy materials with good conductivity.

[0064] like Figure 2-Figure 4 As shown, in some embodiments, the outer surface of the first wire 11 is covered with an insulating layer 30 (not shown); the outer surface of the second wire 12 is covered with an insulating layer 30 (not shown); by covering the outer surfaces of the first wire 11 and the second wire 12 with the insulating layer 30, the wires can be effectively prevented from being corroded by the electrolyte in the battery 200.

[0065] In some embodiments, the chip 10 includes a chip housing, and the circuit structure and the detection structure are arranged in the chip housing, and the chip housing can protect the circuit structure and the detection structure. The other end of the positive electrode 101 and the other end of the negative electrode 102 are both located outside the chip housing. The outer surface of the chip housing is coated with an insulating layer 30 (not shown), the connection between the first wire 11 and the chip housing is coated with an insulating layer 30, and the connection between the second wire 12 and the chip housing is coated with an insulating layer 30. By arranging the insulating layer 30 at the above positions, the chip housing can be protected, and the connection between the first wire 11 and the chip housing and the connection between the second wire 12 and the chip housing can also be protected, so as to prevent the chip housing, the connection between the first wire 11 and the chip housing, and the connection between the second wire 12 and the chip housing from being corroded by the electrolyte in the battery 200.

[0066] Optionally, the chip housing may be a hard housing or a soft housing.

[0067] For example, the insulating layer 30 may be made of one or a combination of materials such as polyimide, polypropylene, and polyethylene.

[0068] In some embodiments, the length of each of the positive electrode member 101 and the negative electrode member 102 ranges from 0.3 cm to 200 cm; and / or, the width of each of the positive electrode member 101 and the negative electrode member 102 ranges from 0.2 cm to 50 cm; and / or, the thickness of each of the positive electrode member 101 and the negative electrode member 102 ranges from 0.2 mm to 5 cm. The length, width and thickness of the positive electrode member 101 and the negative electrode member 102 can be adjusted to accommodate different batteries 200.

[0069] Optionally, the length of the positive electrode member 101 can be 0.3 cm, 1.7 cm, 20 cm, 47 cm, 91 cm, 110 cm, 149 cm, 178 cm, 200 cm, etc. Of course, the length of the positive electrode member 101 can also be other values ​​between 0.3 cm and 200 cm, which are not listed here. The length of the negative electrode member 102 can be 0.3 cm, 2.8 cm, 30 cm, 49 cm, 81 cm, 110 cm, 142 cm, 168 cm, 200 cm, etc. Of course, the length of the negative electrode member 102 can also be other values ​​between 0.3 cm and 200 cm, which are not listed here.

[0070] Optionally, the width of the positive electrode member 101 can be 0.2 cm, 6.7 cm, 16.0 cm, 24 cm, 27 cm, 34.2 cm, 41.6 cm, 45 cm, 50 cm, etc. Of course, the width of the positive electrode member 101 can also be other values ​​between 0.2 cm and 50 cm, which are not listed here. The width of the negative electrode member 102 can be 0.2 cm, 4.7 cm, 14.0 cm, 21 cm, 26 cm, 33.2 cm, 40.6 cm, 47 cm, 50 cm, etc. Of course, the width of the negative electrode member 102 can also be other values ​​between 0.2 cm and 50 cm, which are not listed here.

[0071] Optionally, the thickness of the positive electrode member 101 can be 0.2 cm, 0.4 cm, 0.51 cm, 2 cm, 2.7 cm, 3.42 cm, 4.6 cm, 4.67 cm, 5.0 cm, etc. Of course, the thickness of the positive electrode member 101 can range from 0.2 mm to 5 cm, which are not listed here. The thickness of the negative electrode member 102 can be 0.2 cm, 0.3 cm, 0.61 cm, 1 cm, 1.7 cm, 2.44 cm, 3.6 cm, 4.67 cm, 5.0 cm, etc. Of course, the thickness of the negative electrode member 102 can range from 0.2 mm to 5 cm, which are not listed here.

[0072] For example, both the positive electrode member 101 and the negative electrode member 102 are hard members.

[0073] In some embodiments, the volume range of chip 10 is 5 mm 3 -100cm 3 , and / or, the weight range of the chip 10 is 1 mg-100 g. According to different structures of the battery 200 , the size of the chip 10 can be adjusted and modified accordingly to improve the adaptability of the chip 10 .

[0074] Optionally, the volume of the chip 10 can be 5 mm 3 , 10cm 3 、22cm 3 、42cm 3 、67cm 3 、74cm 3 、82cm 3 、91cm 3 、95cm 3 、100cm 3 Of course, the volume of the chip 10 can be 5mm 3 -100cm 3The weight of the chip 10 may be 1 mg, 4 mg, 125 mg, 800 mg, 1 g, 2 g, 15 g, 42 g, 76 g, 87 g, 100 g, etc. Of course, the weight of the chip 10 may be other values ​​between 1 mg and 100 g, which are not listed here.

[0075] In some embodiments, the shape of the chip 10 may be a rectangular parallelepiped; or, the shape of the chip 10 may be a cube; or, the shape of the chip 10 may be a polyhedron. According to different battery 200 structures, the shape of the chip 10 may be adjusted and modified accordingly to improve the adaptability of the chip 10.

[0076] like Figure 5 As shown, in some embodiments, the detection structure further includes a detection belt 13, one end of the detection belt 13 is connected to the circuit structure, and the other end of the detection belt 13 extends outside the circuit structure. Specifically, a detection belt 13 can extend from the middle position of the chip 10, and the detection belt 13 can extend into the pole core 20 of the battery 200, so as to facilitate more accurate monitoring of the battery 200.

[0077] By way of example, the chip 10 includes a chip housing, one end of the detection band 13 is connected to the circuit structure, and the other end of the detection band 13 is located outside the chip housing.

[0078] Preferably, when the detection structure is a temperature sensor, a detection belt 13 can be extended from the middle position of the chip 10, and the detection belt 13 can be extended between the pole piece and the diaphragm inside the pole core 20 to perform more accurate temperature monitoring of the battery 200.

[0079] It should be further explained that, according to monitoring requirements, the number, length, width, etc. of the detection tape 13 can be modified and adjusted accordingly, and the surface of the detection tape 13 and the connection with the chip 10 are also covered by the insulating layer 30.

[0080] In some embodiments, the length range of the detection tape 13 is 0.5 cm-100 cm; and / or, the width range of the detection tape 13 is 0.2 cm-5 cm; and / or, the thickness range of the detection tape 13 is 0.2 mm-1 cm, thereby adjusting the size of the detection tape 13 according to the type, size and monitoring type of the battery 200 to improve the adaptability of the detection tape 13.

[0081] Optionally, the length of the detection belt 13 can be 0.5 cm, 4 cm, 17 cm, 21 cm, 54 cm, 94 cm, 100 cm, etc. The width of the detection belt 13 can be 0.2 cm, 0.4 cm, 1.4 cm, 2.7 cm, 3.6 cm, 4.8 cm, 5.0 cm, etc. The thickness of the detection belt 13 can be 0.2 cm, 0.3 cm, 0.4 cm, 0.6 cm, 0.7 cm, 0.9 cm, 1 cm. Of course, the length of the detection belt 13 can be other values ​​between 0.5 cm and 100 cm, the width of the detection belt 13 can be other values ​​between 0.2 cm and 5 cm, and the thickness of the detection belt 13 can be other values ​​between 0.2 mm and 1 cm, which are not listed here one by one.

[0082] like Figure 6-Figure 9 As shown, the battery 200 according to the embodiment of the utility model comprises a battery housing, a pole core 20 and a chip assembly 100 according to the embodiment of the utility model. The battery housing is provided with a positive pole column 211 and a negative pole column 222; the chip assembly 100 is arranged in the battery housing; the pole core 20 is arranged in the battery housing, and the pole core 20 has a positive pole tab 201 and a negative pole tab 202, the positive pole piece 101 and the positive pole tab 201 are connected to the positive pole column 211, and the negative pole piece 102 and the negative pole tab 202 are connected to the negative pole column 222.

[0083] In the related art, the power battery management system usually adopts external sensors, which monitor the battery module level. The external sensor monitoring content includes the voltage and temperature signals at the battery module level, which cannot monitor and evaluate the health status and safety status of each battery inside the battery module. In the present application, the chip assembly 100 is arranged inside the battery housing, and the chip assembly 100 can monitor a single battery 200 and the pole core 20 of the battery 200, and can realize the high-precision evaluation and safety warning of the working status and health status of the battery 200 and the pole core 20 of the battery 200, thereby improving the safety performance of the battery 200.

[0084] According to the battery 200 of the embodiment of the utility model, by setting the chip assembly 100 inside the battery housing, the chip assembly 100 can monitor a single battery 200, and can achieve high-precision evaluation and safety warning of the working state and health state of the battery 200, thereby greatly improving the safety performance of the battery 200. In addition, the chip assembly 100 is connected to the positive pole 211 of the battery 200 through the positive electrode 101, and the chip assembly 100 is connected to the negative pole 222 of the battery 200 through the negative electrode 102. A closed loop is formed between the chip assembly 100 and the pole core 20 of the battery 200. The pole core 20 of the battery 200 can supply power to the chip assembly 100, forming an integrated self-powered battery chip assembly, and improving the degree of integration between the battery 200 and the chip assembly 100. In addition, the positive electrode component 101 and the positive electrode tab 201 are connected to the positive electrode column 211, and the negative electrode component 102 and the negative electrode tab 202 are connected to the negative electrode column 222. On the one hand, the internal structure of the battery 200 can be made more compact and the internal space utilization of the battery 200 can be improved; on the other hand, the pole core 20 can be monitored to improve the accuracy of the evaluation and the safety of the battery 200.

[0085] like Figure 6-Figure 8 As shown, in some embodiments, the battery case includes a case body (not shown), a positive electrode cover plate 21 and a negative electrode cover plate 22. The positive electrode cover plate 21 is arranged at one end of the case body, the positive electrode column 211 is arranged on the positive electrode cover plate 21, the negative electrode cover plate 22 is arranged at the other end of the case body, and the negative electrode column 222 is arranged on the negative electrode cover plate 22; the positive electrode member 101 is arranged on the side of the positive electrode column 211, and the negative electrode member 102 is arranged on the side of the negative electrode column 222. The chip 10 can be arranged on the side of the positive electrode column 211; or, the chip 10 can be arranged on the side of the negative electrode column 222; or, the chip 10 can be arranged at a position between the positive electrode column 211 and the negative electrode column 222. That is to say, the installation position of the chip 10 in the battery case can be changed, and the placement of the chip 10 can be adjusted inside the battery 200 according to needs, so that the state changes at different positions inside the battery 200 can be effectively monitored.

[0086] like Figure 6 As shown, for example, the chip 10 and the positive electrode member 101 are arranged on the positive electrode column 211 side, the negative electrode member 102 is arranged on the negative electrode column 222 side, and the negative electrode member 102 is connected to the chip 10 through the second wire 12.

[0087] like Figure 7 As shown, for example, the chip 10 and the negative electrode member 102 are arranged on the negative electrode column 222 side, the positive electrode member 101 is arranged on the positive electrode column 211 side, and the positive electrode member 101 is connected to the chip 10 through the first wire 11.

[0088] like Figure 8As shown, for example, the chip 10 is located between the positive electrode column 211 and the negative electrode column 222, the positive electrode component 101 is arranged on the side of the positive electrode column 211, and the positive electrode component 101 is connected to the chip 10 through the first wire 11; the negative electrode component 102 is arranged on the side of the negative electrode column 222, and the negative electrode component 102 is connected to the chip 10 through the second wire 12.

[0089] like Figure 6 As shown, in some specific examples, the chip 10 is first placed on the side of the positive pole column 211, and then the positive electrode member 101 of the chip 10 is connected to the positive pole ear 201 of the pole core 20, and the connection method is one or a combination of ultrasonic welding and laser welding methods, and then the positive pole ear 201 welded with the positive electrode member 101 is laser welded to the positive pole column 211 on the positive electrode cover 21. The negative electrode member 102 is connected to the chip 10 through the second wire 12, and the negative electrode member 102 is placed on the negative side of the battery 200. The negative electrode member 102 is welded to the negative pole ear 202 of the pole core 20. After the welding is completed, the negative pole ear 202 is laser welded to the negative pole column 222 on the negative electrode cover 22. In this way, the positive electrode part of the chip 10 is connected to the positive pole ear 201, and the negative electrode part is connected to the negative pole ear 202, so as to form a closed loop inside the battery 200, power the chip 10, and form an integrated self-powered chip.

[0090] like Figure 7 As shown, in some specific examples, the chip 10 is first placed on the negative pole column 222 side, and then the negative electrode member 102 of the chip 10 is connected to the negative pole ear 202 of the pole core 20, and the connection method is one or a combination of ultrasonic welding and laser welding methods, and then the negative pole ear 202 welded with the negative electrode member 102 is laser welded to the negative pole column 222 on the negative electrode cover 22. The positive electrode member 101 is connected to the chip 10 through the first wire 11, and the positive electrode member 101 is placed on the positive side of the battery 200. The positive electrode member 101 is welded to the positive pole ear 201 of the pole core 20. After the welding is completed, the positive pole ear 201 is laser welded to the positive pole column 211 on the positive electrode cover 21. In this way, the positive electrode part of the chip 10 is connected to the positive pole ear 201, and the negative electrode part is connected to the negative pole ear 202, so as to form a closed loop inside the battery 200, power the chip 10, and form an integrated self-powered chip.

[0091] like Figure 8As shown, in some specific examples, the chip 10 is placed between the positive pole 211 and the negative pole 222, the positive pole member 101 is connected to the chip 10 through the first wire 11, the positive pole member 101 is placed on the positive side of the battery 200, the positive pole member 101 is welded to the positive pole ear 201 of the pole core 20, and after the welding is completed, the positive pole ear 201 is laser welded to the positive pole 211 on the positive cover 21. The negative pole member 102 is connected to the chip 10 through the second wire 12, the negative pole member 102 is placed on the negative side of the battery 200, the negative pole member 102 is welded to the negative pole ear 202 of the pole core 20, and after the welding is completed, the negative pole ear 202 is laser welded to the negative pole 222 on the negative cover 22. In this way, the positive electrode part of the chip 10 is connected to the positive electrode tab 201, and the negative electrode part is connected to the negative electrode tab 202, thereby forming a closed loop inside the battery 200 to power the chip 10 and form an integrated self-powered chip.

[0092] In some examples not shown in the figures, the battery case only includes a shell body and a positive electrode cover 21, one end of the shell body has an opening, the positive electrode cover 21 is arranged at the opening of the shell body, the positive electrode column 211 is arranged on the positive electrode cover 21, the positive electrode member 101 and the positive electrode tab 201 are connected to the positive electrode column 211, the negative electrode column 222 is arranged on the shell body and contacts the shell body, the negative electrode member 102 and the negative electrode tab 202 are connected to the negative electrode column 222, and the shell body is negatively charged.

[0093] It should be pointed out that the positive electrode member 101 of the chip 10 can be connected to the positive electrode tab 201 of the electrode core 20, and the negative electrode member 102 of the chip 10 can be connected to the negative electrode tab 202 of the electrode core 20; and then welded to the corresponding positive electrode column 201 and negative electrode column 202. This connection method is simple and practical.

[0094] In some embodiments, the battery 200 may be a blade-shaped battery. For example, the length of the blade-shaped battery may range from 400 mm to 700 mm. For another example, the length of the blade-shaped battery may be greater than 700 mm. The battery 200 may also be a cylindrical battery, a square battery, or a soft-pack battery. The chip 10 is applicable to all of these batteries 200, but the shape, structure, and size of the chip 10 need to be adjusted and modified accordingly according to the different structures of the battery 200.

[0095] In some specific examples, an insulating plate is provided between the positive electrode column 211 and the positive electrode cover plate 21, and an insulating plate is provided between the negative electrode column 222 and the negative electrode cover plate 22. By providing the insulating plate, the positive electrode column 211 and the negative electrode column 222 can be charged, while the positive electrode cover plate 21 and the negative electrode cover plate 22 are not charged, thereby avoiding the current from being conducted to the shell body through the positive electrode cover plate 21 and the negative electrode cover plate 22, thereby reducing the risk of short circuit.

[0096] like Fig.10 As shown, the energy storage device 1000 according to the embodiment of the utility model includes a plurality of batteries 200 according to the embodiment of the utility model. By setting the above-mentioned batteries 200, the chip assembly 100 is set inside the battery housing. The chip assembly 100 can monitor a single battery 200, and can achieve high-precision evaluation and safety warning of the working state and health state of the battery 200, thereby greatly improving the safety performance of the battery 200. In addition, the chip assembly 100 is connected to the positive pole 211 of the battery 200 through the positive pole piece 101, and the chip assembly 100 is connected to the negative pole 222 of the battery 200 through the negative pole piece 102. A closed loop is formed between the chip assembly 100 and the pole core 20 of the battery 200. The pole core 20 of the battery 200 can supply power to the chip assembly 100, forming an integrated self-powered battery chip assembly, which improves the degree of integration of the battery 200 and the chip assembly 100. In addition, the positive electrode member 101 and the positive electrode tab 201 are connected to the positive electrode column 211, and the negative electrode member 102 and the negative electrode tab 202 are connected to the negative electrode column 222. On the one hand, the internal structure of the battery 200 can be made more compact and the internal space utilization of the battery 200 can be improved; on the other hand, the electrode core 20 can be monitored to improve the accuracy of the evaluation and the safety of the battery 200. Fig.11 As shown, the electric device 2000 according to the embodiment of the utility model includes the energy storage device 1000 according to the embodiment of the utility model. By setting the above energy storage device 1000, the chip assembly 100 is set inside the battery housing. The chip assembly 100 can monitor a single battery 200, and can achieve high-precision evaluation and safety warning of the working state and health state of the battery 200, thereby greatly improving the safety performance of the battery 200. In addition, the chip assembly 100 is connected to the positive pole 211 of the battery 200 through the positive pole piece 101, and the chip assembly 100 is connected to the negative pole 222 of the battery 200 through the negative pole piece 102. A closed loop is formed between the chip assembly 100 and the pole core 20 of the battery 200. The pole core 20 of the battery 200 can supply power to the chip assembly 100, forming an integrated self-powered battery chip assembly, which improves the integration of the battery 200 and the chip assembly 100. In addition, the positive electrode component 101 and the positive electrode tab 201 are connected to the positive electrode column 211, and the negative electrode component 102 and the negative electrode tab 202 are connected to the negative electrode column 222. On the one hand, the internal structure of the battery 200 can be made more compact and the internal space utilization of the battery 200 can be improved; on the other hand, the pole core 20 can be monitored to improve the accuracy of the evaluation and the safety of the battery 200.

[0097] Optionally, the electrical equipment 2000 may be a vehicle, a ship, an airplane, a machine tool, a household appliance, etc.

[0098] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0099] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0100] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0101] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A chip assembly (100) for a battery (200), characterized in that: include: A chip (10), the chip (10) comprising a circuit structure and a detection structure, the detection structure being electrically connected to the circuit structure; A positive electrode member (101), one end of the positive electrode member (101) being electrically connected to the circuit structure, and the other end of the positive electrode member (101) being suitable for being connected to the positive electrode of the battery (200); A negative electrode member (102), one end of the negative electrode member (102) is electrically connected to the circuit structure, and the other end of the negative electrode member (102) is suitable for being connected to the negative electrode of the battery (200).

2. The chip assembly (100) according to claim 1, characterized in that: The chip (10) also includes a wireless transmission structure, which is electrically connected to the circuit structure and is used at least to transmit the signal detected by the detection structure to an external device by wireless communication.

3. The chip assembly (100) according to claim 1, characterized in that: The positive electrode member (101) is electrically connected to the circuit structure via a first wire (11); and / or the negative electrode member (102) is electrically connected to the circuit structure via a second wire (12).

4. The chip assembly (100) according to claim 3, characterized in that: The outer surface of the first conductive wire (11) is covered with an insulating layer (30), and the outer surface of the second conductive wire (12) is covered with an insulating layer (30).

5. The chip assembly (100) according to any one of claims 1 to 4, characterized in that: The chip (10) further comprises a chip shell, the circuit structure and the detection structure are arranged in the chip shell, the other end of the positive electrode member (101) and the other end of the negative electrode member (102) are both located outside the chip shell, and the outer surface of the chip shell is coated with an insulating layer (30).

6. The chip assembly (100) according to claim 1, characterized in that: The length of each of the positive electrode member (101) and the negative electrode member (102) is in the range of 0.3 cm to 200 cm; and / or the width of each of the positive electrode member (101) and the negative electrode member (102) is in the range of 0.2 cm to 50 cm; and / or the thickness of each of the positive electrode member (101) and the negative electrode member (102) is in the range of 0.2 mm to 5 cm.

7. The chip assembly (100) according to claim 1, characterized in that: The volume range of the chip (10) is 5 mm 3 -100cm 3 ; and / or, the weight range of the chip (10) is 1 mg-100 g.

8. The chip assembly (100) according to claim 1, characterized in that: The chip (10) is in the shape of a cuboid, a cube, or a polyhedron.

9. The chip assembly (100) according to claim 1, characterized in that: The detection structure comprises a detection belt (13), one end of the detection belt (13) is connected to the circuit structure, and the other end of the detection belt (13) extends outside the circuit structure.

10. The chip assembly (100) according to claim 9, characterized in that: The length of the detection tape (13) ranges from 0.5 cm to 100 cm; and / or the width of the detection tape (13) ranges from 0.2 cm to 5 cm; and / or the thickness of the detection tape (13) ranges from 0.2 mm to 1 cm.

11. A battery (200), characterized in that: include: A battery housing, wherein the battery housing is provided with a positive electrode column (211) and a negative electrode column (222); The chip assembly (100) according to any one of claims 1 to 10, wherein the chip assembly (100) is arranged in the battery housing; A pole core (20), the pole core (20) being arranged in the battery housing, the pole core (20) having a positive pole tab (201) and a negative pole tab (202), the positive pole piece (101) and the positive pole tab (201) being connected to the positive pole column (211), and the negative pole piece (102) and the negative pole tab (202) being connected to the negative pole column (222).

12. The battery (200) according to claim 11, characterized in that: The battery case comprises a case body, a positive electrode cover plate (21) and a negative electrode cover plate (22), wherein the positive electrode cover plate (21) is arranged at one end of the case body, the positive electrode column (211) is arranged on the positive electrode cover plate (21), the negative electrode cover plate (22) is arranged at the other end of the case body, and the negative electrode column (222) is arranged on the negative electrode cover plate (22); The positive electrode component (101) is arranged on the side of the positive electrode column (211), the negative electrode component (102) is arranged on the side of the negative electrode column (222), and the chip (10) is arranged on the side of the positive electrode column (211) or the side of the negative electrode column (222) or between the positive electrode column (211) and the negative electrode column (222).

13. An energy storage device (1000), characterized in that: Comprising a plurality of batteries (200) according to claim 11 or 12.

14. An electrical device (2000), characterized in that: Comprising the energy storage device (1000) as claimed in claim 13.

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