CN220021225U - Battery, battery module and battery pack - Google Patents

Abstract

The utility model discloses a battery, a battery module and a battery pack, wherein the battery comprises: the device comprises a shell and a pole core, wherein an accommodating cavity suitable for accommodating the pole core is formed in the shell; the detection piece is accommodated in the accommodating cavity and is suitable for detecting parameters of the pole core; and the carrier component is connected with the detection component and is suitable for transmitting the parameters detected by the detection component in the form of wireless signals. The battery designed according to the utility model adopts a wireless signal transmission mode based on carrier transmission to transmit the parameters detected by the detection part, so that the transmission is quicker.

Description

Battery, battery module and battery pack

Technical Field

The utility model relates to the field of batteries, in particular to a battery, a battery module and a battery pack.

Background

In the related art, a battery module is provided with a chip sensor to monitor the state of a battery, in the prior art, the chip sensor is based on the NFC principle, however, the chip signal transmission distance is limited, synchronous acquisition of multiple access signals cannot be realized, signals among single chips are easy to interfere, the data acquisition process needs to transmit acquisition signals first, then receive feedback signals, a certain time difference exists in data acquisition, and the efficiency is lower.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a battery. The battery designed according to the utility model adopts a wireless signal transmission mode based on carrier transmission to transmit the parameters detected by the detection part, so that the transmission is quicker.

The utility model also provides a battery module with the battery.

The utility model also provides a battery pack with the battery module.

The battery according to the present utility model includes: the device comprises a shell and a pole core, wherein an accommodating cavity suitable for accommodating the pole core is formed in the shell; the detection piece is accommodated in the accommodating cavity and is suitable for detecting parameters of the pole core; and the carrier component is connected with the detection component and is suitable for transmitting the parameters detected by the detection component in the form of wireless signals.

According to the battery disclosed by the utility model, the detection part and the carrier part are arranged, the parameter change of the pole core can be accurately and rapidly reflected by the detection part, the carrier part communicates the parameter detected by the detection part with the outside in a wireless signal mode, the signal transmission is quicker, the battery management system can monitor the battery state more timely and accurately, and the battery safety early warning effect is better.

According to some embodiments of the utility model, the detection element is connected to the pole core and outputs a wireless signal through the carrier element when the pole core is energized.

According to some embodiments of the utility model, the carrier is configured as a tab or post connected to the pole core or the housing.

According to some embodiments of the utility model, at least part of the detecting element is disposed within the pole piece.

According to some embodiments of the utility model, the pole core has a first wall surface and a second wall surface, at least part of the first wall surface is opposite to and spaced from at least part of the second wall surface to define a receiving gap, and at least part of the detecting element is disposed in the receiving gap and is respectively attached to the first wall surface and the second wall surface.

According to some embodiments of the utility model, the pole piece is folded or wound.

According to some embodiments of the utility model, the pole piece comprises: the first pole piece, the second pole piece and the diaphragm arranged between the first pole piece and the second pole piece; at least part of the detection piece is arranged between the first pole piece and the diaphragm or between the second pole piece and the diaphragm.

According to some embodiments of the utility model, at least part of the surface of the first pole piece is formed with a coating layer, and the coating layer is formed with a containing groove suitable for containing at least part of the detecting piece.

According to some embodiments of the utility model, the detecting member includes: the sensor is arranged in the pole core; the control unit is electrically connected with the sensor and the carrier piece respectively and is suitable for acquiring signals detected by the sensor.

According to some embodiments of the utility model, the sensor is configured as at least one or a combination of more of a temperature sensor, a stress sensor, a strain sensor, a potential sensor, a barometric pressure sensor.

According to some embodiments of the utility model, the housing comprises: a housing body in which the accommodation chamber is formed to be opened toward the outside; and the cover plate is suitable for closing the opening of the accommodating cavity, and is provided with a mounting groove suitable for accommodating the control unit.

A battery module according to another embodiment of the present utility model is briefly described as follows.

The battery module comprises the battery according to any one of the embodiments, and the battery module is provided with the battery according to the embodiment, so that the battery module can assist a battery management system to monitor the battery state more accurately, timely and comprehensively, monitor and early warn parameters represented by abnormal states of the battery, and feed back quickly.

A battery pack according to another embodiment of the present utility model is briefly described as follows.

The battery pack according to the present utility model includes: a battery module configured as the battery module described in the above embodiment; the battery management system is suitable for receiving the wireless signals transmitted by the carrier, and the battery pack is provided with the battery module according to the embodiment, so that the battery pack can be positioned to a fault battery more timely and accurately, and the safety pre-warning effect is good.

In summary, the battery according to the utility model is provided with the detection part and the carrier part, the parameters detected by the detection part can be transmitted to the outside in a wireless mode, the signal transmission is rapid, the battery management system can monitor the battery state more timely and accurately, the battery safety early warning effect is better, the detection part can accurately and rapidly reflect the parameter change of the pole core, the prevention and early warning are provided for the possible abnormality and abuse of the pole core, the reliability and the safety of the battery are improved, and the service life of the battery is prolonged.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is an exploded view of a battery according to some embodiments of the present utility model.

Fig. 2 is a battery structure diagram according to other embodiments of the present utility model.

Fig. 3 is an exploded view of a battery according to other embodiments of the present utility model.

Fig. 4 is a battery structure diagram according to still other embodiments of the present utility model.

Fig. 5 is an exploded view of a battery according to still other embodiments of the present utility model.

Fig. 6 is a cross-sectional view of a battery according to still other embodiments of the present utility model.

Fig. 7 is a schematic diagram illustrating the operation of a battery management system according to other embodiments of the present utility model.

Fig. 8 is a schematic diagram of the operation of a battery management system according to further embodiments of the present utility model.

Fig. 9 is a schematic diagram of the safety precaution operation logic of the battery management system according to an embodiment of the utility model.

Reference numerals:

a battery 1; a battery module 2; a battery management system 3;

a housing 10; a housing body 11; a cover plate 12; a mounting groove 121;

a pole piece 20; a positive electrode tab 24; a negative electrode tab 25;

a detecting member 30; a sensor 31; a control unit 32; a first primer 33; a second primer 34.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the related art, a battery module is provided with a chip sensor to monitor the state of a battery, in the prior art, the chip sensor is based on the NFC principle, however, the chip signal transmission distance is limited, synchronous acquisition of multiple access signals cannot be realized, signals among single chips are easy to interfere, the data acquisition process needs to transmit acquisition signals first, then receive feedback signals, a certain time difference exists in data acquisition, and the efficiency is lower.

A battery 1 according to an embodiment of the present utility model is described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, a battery 1 according to the present utility model includes: the device comprises a shell 10, a pole piece 20, a detection piece 30 and a carrier piece. A housing cavity suitable for housing the pole piece 20 is formed in the housing 10; the detecting piece 30 is accommodated in the accommodating cavity and is suitable for detecting parameters of the pole core; the carrier member is connected to the sensing member 30 and is adapted to transmit the parameter sensed by the sensing member 30 in the form of a wireless signal. Specifically, the detecting member 30 is adapted to detect parameters of the pole core 20, including but not limited to temperature, strain, stress, gas pressure, positive and negative electrode potential, etc., and the battery 1 provided with the detecting member 30 can provide status parameters of the single pole core 20, help the Battery Management System (BMS) 3 to perform more accurate, timely and comprehensive status monitoring of the battery 1, and perform monitoring and early warning for parameters characterized by abnormal status of the battery 1. The case 10 may be a hard case, a soft case, or the like, and is not limited herein. More specifically, the detecting element 30 is connected with the carrier element and communicates with the outside through the carrier element, so that the battery 1 can adopt a wireless signal transmission mode, and preferably adopts a wireless signal transmission mode based on carrier transmission, so that the signal transmission is quicker, and the battery management system 3 can monitor the state of the battery 1 more timely and accurately.

According to the battery 1 provided by the utility model, the detection piece 30 and the carrier piece are arranged, the detection piece 30 can accurately and rapidly reflect the parameter change of the pole core 20, the carrier piece 30 communicates the parameter detected by the detection piece with the outside in a wireless signal mode, the signal transmission is quicker, the battery 1 state monitoring is more timely and accurately carried out by the battery management system 3, and the safety pre-warning effect of the battery 1 is better.

According to some embodiments of the present utility model, as shown in fig. 1 and 6, the detecting member 30 is connected to the pole core 20 and outputs a wireless signal through the carrier member when the pole core 20 is powered. Specifically, since the detecting element 30 needs to be connected to a power supply to work normally, the detecting element 30 can be electrically connected with the positive electrode tab 24 and the negative electrode tab 25 of the electrode core 20 respectively, so as to supply current to the detecting element 30, in some embodiments, the carrier element can be configured as the tab of the electrode core 20, so that the tab can be electrically connected with the detecting element 30 to supply power and simultaneously transmit wireless signals, the tab is utilized to transmit wireless signals and supply power to the detecting element 30, other carrier elements are not additionally arranged, the existing structure of the electrode core 20 is effectively utilized, the occupied space of the carrier element in the housing 10 is reduced, and the energy density of the battery 1 is ensured.

According to some embodiments of the present utility model, the carrier member is configured as a tab or post or housing 10 connected to the pole core 20, it being understood that the carrier member may be a metallic material of the pole core 20 and its structural members, which may act as a signal amplifier to transmit signals of the control unit 32, including but not limited to metallic tabs, posts, housing 10, etc.

According to some embodiments of the present utility model, as shown in fig. 1-6, at least a portion of the sensing element 30 is disposed within the pole piece 20. Specifically, a part of the detecting element 30 may be embedded into the housing 10 and another part of the detecting element 30 may be embedded into the pole core 20, or the detecting element 30 may be entirely embedded into the pole core 20, and because the scheme of the structure in which the detecting element 30 is entirely embedded into the pole core 20 has a certain implementation difficulty, it is preferable that the part of the detecting element 30 is embedded into the pole core 20, and the part of the detecting element 30 embedded into the pole core 20 can more accurately and rapidly reflect the actual temperature, stress and other parameter changes of the pole core 20, so that the detecting element 30 does not occupy too much internal space of the battery 1 and can accurately and rapidly reflect the parameter changes in the pole core 20, and the battery management system can perform more accurate and timely battery 1 state monitoring under the condition of reducing the influence of the detecting element 30 on the energy density of the battery 1. For a large-volume battery, the environmental states of different positions in the battery 1 are obviously different, and the detection piece 30 is at least partially embedded into the pole core 20, so that the purposes of preferential discovery and preferential early warning can be achieved in the aspect of the safety of the battery 1.

According to some embodiments of the present utility model, as shown in fig. 1-3, the pole piece 20 has a first wall surface and a second wall surface, at least part of the first wall surface is opposite to and spaced apart from at least part of the second wall surface to define a receiving gap, and at least part of the detecting member 30 is disposed in the receiving gap and is respectively attached to the first wall surface and the second wall surface. Specifically, in some embodiments, the pole core 20 is formed by stacking multiple layers of positive pole pieces, diaphragms, negative pole pieces and the like, the first wall surface and the second wall surface may refer to two adjacent layers in the multiple-layer structure of the pole core 20, and at least part of the detecting element 30 is disposed between the two layers of the pole core 20, so that at least part of the detecting element 30 is embedded into the pole core 20, so as to be convenient for monitoring signals of temperature, strain, stress, potential and the like of the pole core 20; the first wall surface and the second wall surface may refer to structures located on two sides of the multi-layer structure of the pole core 20, at this time, the pole core 20 may be a winding pole core (as shown in fig. 2-3) or a folding pole core (not shown), the middle of the winding pole core 20 has a hollow area, that is, an accommodating gap, the first wall surface and the second wall surface are configured as the same layer, the detecting element 30 is disposed in the accommodating gap, so that the detecting element 30 is located inside the winding pole core 20, the folding pole core 20 is folded in an "S" shape, the first wall surface and the second wall surface are also configured as the same layer, and the detecting element 30 is disposed in the gap of the "S" folding pole core 20, that is, the accommodating gap, so as to monitor signals such as temperature, strain, stress, and potential of the pole core 20.

It is to be understood that the at least partially embedding the detecting element 30 into the pole core 20 includes, but is not limited to, at least part of the detecting element 30 being disposed between two layers of the multi-layered pole core 20, at least part of the detecting element 30 being disposed in a receiving gap between the winding pole core 20, at least part of the detecting element 30 being disposed in a receiving gap of the folding pole core 20, etc., the shapes of the pole core 20 and the detecting element 30 being not limited, the shape and position of the detecting element 30 being adjustable according to the shape and position of the pole core 20, so that at least part of the detecting element 30 is disposed inside the pole core 20.

According to some embodiments of the present utility model, the pole piece 20 is folded (not shown) or wound (as shown in fig. 2-3), the folded pole piece 20 may be folded in an "S" shape, at least part of the detecting member 30 is disposed in the accommodation gap of the "S" folded pole piece 20 or at least part of the detecting member 30 is disposed between two layers of the folded pole piece 20; the middle of the winding pole core 20 is provided with an accommodating gap, at least part of the detecting piece 30 is arranged in the accommodating gap or at least part of the detecting piece 30 is arranged between the two layers of structures of the winding pole core 20.

According to some embodiments of the present utility model, the pole piece 20 includes a first pole piece, a second pole piece, and a diaphragm disposed between the first pole piece and the second pole piece; at least part of the detecting member 30 is disposed between the first pole piece and the diaphragm or between the second pole piece and the diaphragm. Specifically, the pole core 20 is formed by stacking a first pole piece, a diaphragm and a second pole piece, the first pole piece is one of a positive pole piece and a negative pole piece, the second pole piece is the other of the positive pole piece and the negative pole piece, the first wall surface and the second wall surface can be the first pole piece and the diaphragm or the second pole piece and the diaphragm, at least part of the detecting piece 30 is arranged between the first pole piece and the diaphragm or between the second pole piece and the diaphragm, so that at least part of the detecting piece 30 is buried in the pole core 20, signals such as temperature, strain, stress, potential and the like of the pole core 20 are conveniently monitored, the internal space of the battery 1 shell 10 is not occupied excessively, and the influence of the detecting piece 30 on the energy density of the battery 1 is reduced.

According to some embodiments of the utility model, at least part of the surface of the first pole piece is formed with a coating layer, on which a receiving groove adapted to receive at least part of the detecting element 30 is formed. Specifically, to avoid swelling of the surface of the rear electrode core 20 where the detecting element 30 is disposed inside the electrode core 20, at least a portion of the coating layer of the first electrode sheet may be removed to form a receiving groove suitable for accommodating at least a portion of the detecting element 30, in some embodiments, the first electrode sheet is a positive electrode sheet, the surface of the positive electrode sheet is coated with an active material, that is, a coating layer, and a portion of the active material on the positive electrode sheet is removed by a laser etching method, a doctor-blading method, or the like, to form a receiving groove, and at least a portion of the detecting element 30 is disposed in the receiving groove, so as to reduce a volume change of the rear electrode core 20 where the detecting element 30 is disposed inside the electrode core 20. It can be appreciated that the middle of the winding pole core 20 has an accommodating gap, and when the detecting member 30 is arranged in the accommodating gap, the accommodating groove is not required to be formed on the surface of the coating layer, so that the nondestructive implantation of the detecting member 30 can be realized without damaging the structure of the pole core 20, and the installation is convenient and the operation of the battery 1 is not affected.

According to some embodiments of the present utility model, as shown in fig. 1, 3 and 5, the detecting member 30 includes a sensor 31 and a control unit 32. The sensor 31 is arranged in the pole core 20; the control unit 32 is electrically connected to the sensor 31 and the carrier member, respectively. Specifically, in some embodiments, as shown in fig. 5, the sensor 31 and the control unit 32 are highly integrated and connected by a flexible integrated circuit (FPC), and the detection member 30 is integrated by using Polyimide (PI) or polyester film as a substrate, and the detection member 30 has a first primer 33 and a second primer 34 that are electrically connected, so that the detection member 30 is used normally, the first primer 33 of the detection member 30 is connected to the positive electrode tab 24 of the electrode core 20, and the second primer 34 of the detection member 30 is connected to the negative electrode tab 25 of the electrode core 20. More specifically, the carrier member may be configured as a tab of the pole core 20, the outer layer of the detecting member 30 is wrapped with various well-known insulating and corrosion-preventing materials such as Polytetrafluoroethylene (PVDF), polyethylene terephthalate (PET), aramid, aluminum plastic film, epoxy resin, silicone rubber, etc., and the first and second primers 33 and 34 of the detecting member 30 are respectively connected with the positive and negative electrode tabs 24 and 25 of the pole core 20 by welding methods well known in the industries such as ultrasonic welding, laser welding, and resistance-heat welding, so as to supply power to the detecting member 30. The sensor 31 can monitor the temperature, strain, stress, potential and other signals of the pole core 20, and the control unit 32 obtains the signals monitored by the sensor 31 and feeds back the signals to the battery management system 3, so as to early warn the occurrence and deterioration of the abnormality of the battery 1 in advance and ensure the use safety.

According to some embodiments of the present utility model, the sensor 31 is configured as at least one or a combination of a plurality of temperature sensors, stress sensors, strain sensors, potential sensors, air pressure sensors, it is understood that the sensor 31 types include, but are not limited to, temperature sensors, strain sensors, stress sensors, air pressure sensors, potential sensors, etc., each sensor range and accuracy is matched to the battery 1 operating range, the same type of sensor may use a plurality of sensors in the same battery 1 and be disposed in different locations, such as the temperature sensors may be disposed at the top, middle, and bottom of the same battery 1; the gas sensor comprises a gas chamber for collecting gas, so that the gas sensor is arranged at the cover plate 12 of the battery 1, different kinds of sensors can be independently used in one battery 1, and also can be integrated or matched together for use, for example, a temperature sensor and a stress sensor are arranged at the middle part of the same battery 1, and a gas sensor, a gas pressure sensor and the like are arranged at the top end of the gas sensor and the gas pressure sensor and the like, and can be adjusted according to actual requirements.

According to some embodiments of the present utility model, as shown in fig. 1, 3, 4 and 5, the housing 10 includes a housing body 11 and a cover 12. The housing body 11 has a housing chamber formed therein which is opened to the outside; the cover plate 12 is suitable for closing the open mouth of the accommodating cavity, the cover plate 12 is provided with a mounting groove 121 suitable for accommodating the control unit 32, the detecting piece 30 is arranged in the mounting groove 121, the detecting piece 30 is prevented from occupying the accommodating cavity, the volume occupancy rate of the pole core 20 in the shell 10 is ensured, and therefore the energy density of the battery 1 is ensured.

The battery module 2 according to the present utility model is briefly described below.

The battery module 2 according to the present utility model includes the battery 1 according to any one of the above embodiments, and since the battery module 2 according to the present utility model is provided with the battery 1 according to the above embodiments, the battery module 2 can assist the battery management system 3 in more accurate, timely and comprehensive monitoring of the state of the battery 1, and in response to the monitoring and early warning of the parameter represented by the abnormal state of the battery 1, the feedback is rapid.

The battery pack according to the present utility model is briefly described as follows.

The battery pack according to the present utility model includes: a battery module 2 and a battery management system 3, the battery module 2 being configured as the battery module 2 described in the above embodiments; the battery management system 3 is adapted to receive wireless signals transmitted by the carrier member. As shown in fig. 7-8, the battery 1 provided with the detecting element 30 can provide the state parameters of the single pole core 20, the detecting element 30 is connected with the carrier element and communicates with the outside through the carrier element, so that the battery 1 can adopt a wireless signal transmission mode based on carrier transmission, help the battery management system 3 to monitor the state of the battery 1 more accurately, timely and comprehensively, and monitor and early warn the parameters represented by the abnormal state of the battery 1. Since the battery pack according to the present utility model is provided with the battery module 2 of the above-described embodiment, the battery pack can be positioned to the faulty battery 1 more timely and accurately, and the safety precaution effect is good.

As shown in fig. 7 to 8, the battery pack includes a battery module 2 and a battery management system 3, the battery module 2 is formed by electrically connecting a plurality of the above-mentioned batteries 1, and the battery management system 3 and the detecting member 30 of each battery 1 are in communication connection by wireless means, so that the battery management system 3 can effectively monitor the environmental conditions such as temperature, strain, stress, gas pressure, electric potential and the like inside each battery 1 in the battery module 2.

As shown in fig. 9, by providing the detection member 30 for detecting the environmental state inside the battery 1 on each or a specific position of the battery 1, it is possible to realize real-time monitoring and control of each battery 1 by the battery management system 3. Since the detecting member 30 is provided inside the battery 1, the environmental data monitored by the detecting member 30 has higher accuracy, and thus the state of the battery 1 can be judged more accurately. The battery management system 3 establishes a corresponding model by monitoring corresponding environmental data such as temperature, strain, stress, gas pressure, potential and the like in real time, compares the model with an original standard model, evaluates abuse and abnormal states of the battery 1, judges abnormal types of the battery 1, wherein common battery 1 abnormality comprises battery thermal runaway, abnormal gas production bulge of the battery 1, dry electrolyte of the battery 1 and the like, and carries out safety early warning on the abnormal battery 1 based on the monitoring model, thereby improving the management efficiency and safety of a battery pack.

In summary, the battery 1 according to the present utility model is provided with the detecting member 30 and the carrier member, so that the parameters detected by the detecting member 30 can be transmitted to the outside in a wireless manner, the signal transmission is rapid, the battery management system 3 is convenient to monitor the state of the battery 1 more timely and accurately, the safety pre-warning effect of the battery 1 is better, the detecting member 30 can accurately and rapidly reflect the parameter variation of the pole core 20, and the method can provide prevention and pre-warning for the possible abnormality and abuse of the pole core 20, improve the reliability and safety of the battery 1, and prolong the service life of the battery 1.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

Although embodiments of the present utility model have been shown and described above, variations, modifications, substitutions and alterations are possible to the above embodiments.

Claims (13)

1. A battery, comprising:

a housing (10) and a pole core (20), wherein a containing cavity suitable for containing the pole core (20) is formed in the housing (10);

the detection piece (30) is accommodated in the accommodating cavity and is suitable for detecting parameters of the pole core (20);

and the carrier component is connected with the detection component (30) and is suitable for transmitting the parameters detected by the detection component (30) in the form of wireless signals.

2. The battery according to claim 1, characterized in that the detection element (30) is connected to the pole core (20) and outputs a wireless signal through the carrier element under the energization of the pole core (20).

3. The battery according to claim 2, characterized in that the carrier is configured as a tab or post connected to the pole core (20) or as the housing (10).

4. A battery according to claim 3, characterized in that at least part of the detecting element (30) is arranged inside the pole piece (20).

5. The battery according to claim 4, wherein the pole piece (20) has a first wall surface and a second wall surface, at least a portion of the first wall surface is opposite to and spaced apart from at least a portion of the second wall surface to define a receiving gap, and at least a portion of the detecting member (30) is disposed in the receiving gap and is bonded to the first wall surface and the second wall surface, respectively.

6. The battery according to claim 5, characterized in that the pole core (20) is folded or wound.

7. The battery according to claim 2, characterized in that the pole piece (20) comprises: the first pole piece, the second pole piece and the diaphragm arranged between the first pole piece and the second pole piece; at least part of the detection piece (30) is arranged between the first pole piece and the diaphragm or between the second pole piece and the diaphragm.

8. The battery according to claim 7, characterized in that at least part of the surface of the first pole piece is formed with a coating layer on which a receiving groove adapted to receive at least part of the detecting member (30) is formed.

9. The battery according to any one of claims 1 to 8, wherein the detecting member (30) includes:

a sensor (31), the sensor (31) being disposed within the pole piece (20);

the control unit (32), the control unit (32) respectively with sensor (31) and carrier spare electric connection, the control unit (32) is suitable for obtain the signal that the sensor (31) monitored.

10. The battery according to claim 9, wherein the sensor (31) is configured as at least one or a combination of more of a temperature sensor, a stress sensor, a strain sensor, a potential sensor, a gas pressure sensor.

11. The battery according to claim 9, wherein the housing (10) comprises:

a housing body (11), wherein the housing body (11) is internally provided with the accommodation cavity which is opened towards the outside;

and the cover plate (12), the cover plate (12) is suitable for closing the opening of the accommodating cavity, and the cover plate (12) is provided with a mounting groove (121) suitable for accommodating the control unit (32).

12. A battery module characterized by comprising a battery (1) according to any one of claims 1-11.

13. A battery pack, comprising:

a battery module (2), the battery module (2) being configured as the battery module (2) of claim 12;

-a battery management system (3), said battery management system (3) being adapted to receive wireless signals transmitted by said carrier member.