Ccs assembly, battery and powered device

Abstract

The application discloses a CCS assembly, a battery and a power utilization device. The CCS assembly comprises a voltage collection part and a busbar. The voltage collection part is provided with a plurality of voltage collection ends. The busbar is connected with the plurality of voltage collection ends. The plurality of voltage collection ends connected with the same busbar are used for being connected with the same battery monomer. The application aims to improve the accuracy of collected voltage data and reduce the risk of battery thermal runaway.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more particularly to a CCS component, battery, and electrical device. Background Technology

[0002] In related technologies, a battery includes a CCS module and individual battery cells. The CCS module includes a voltage acquisition unit and a bus. The voltage acquisition unit has a voltage acquisition terminal, and the bus is connected to a voltage acquisition terminal. The bus is connected to the individual battery cells, and the voltage acquisition terminal acquires the voltage data of the bus. The voltage data of the individual battery cells is obtained through the voltage data of the bus.

[0003] However, researchers have found that if the busbar makes poor contact with the voltage acquisition terminal, the acquired voltage data may be inaccurate, which could increase the risk of battery thermal runaway. Utility Model Content

[0004] This application provides a CCS component, a battery, and an electrical device, aiming to improve the accuracy of the collected voltage data and reduce the risk of battery thermal runaway.

[0005] To achieve the above objectives, according to a first aspect of this application, a CCS component is provided, comprising: The voltage acquisition device is equipped with multiple voltage acquisition terminals; and A busbar is connected to multiple voltage acquisition terminals, and the multiple voltage acquisition terminals connected to the same busbar are used to connect to the same battery cell.

[0006] The busbar connects multiple voltage acquisition terminals simultaneously, forming a multi-point redundant path. Even if one or more voltage acquisition terminals have poor contact, the remaining normally connected terminals can still stably acquire the battery cell voltage through the busbar. This is equivalent to adding a backup channel for voltage acquisition, ensuring that the acquired voltage data always reflects the true state of the battery cells. Voltage data is a key basis for judging battery status and warning of risks, and its accuracy is directly related to battery safety. By ensuring accurate voltage data through multiple voltage acquisition terminals, the BMS can monitor voltage anomalies (overcharge, over-discharge, short circuit, etc.) of battery cells in real time, thereby reducing the risk of battery thermal runaway.

[0007] Optionally, multiple busbars are provided, and each busbar is connected to multiple voltage acquisition terminals.

[0008] It is understandable that the positive and negative terminals of a single battery cell are connected to a busbar. If each busbar is connected to multiple voltage acquisition terminals, even if a voltage acquisition terminal connected to a certain busbar is loose, the voltage data of multiple battery cells assembled with the CCS module can still be measured more accurately, reducing the occurrence of situations where the voltage of a certain battery cell cannot be measured.

[0009] Optionally, multiple busbars are provided, and some of the busbars are respectively connected to multiple voltage acquisition terminals.

[0010] Therefore, not every bus is connected to multiple voltage acquisition terminals, which helps reduce the manufacturing cost of CCS components.

[0011] Optionally, the number of voltage acquisition terminals connected to the same busbar is two.

[0012] In related technologies, a single voltage acquisition terminal has zero redundancy, and a poor connection will lead to acquisition failure; while two voltage acquisition terminals are the minimum configuration for achieving redundancy protection, which can achieve the goal with minimal design changes (only adding one voltage acquisition terminal).

[0013] The two voltage acquisition terminals form a dual-path backup. Even if one of them has poor contact due to vibration, oxidation, or assembly errors, the other normally connected voltage acquisition terminal can still stably acquire the voltage of the battery cell, directly cutting off the risk chain of single-point failure, ensuring that the voltage data is uninterrupted and undistorted, and fundamentally avoiding the failure of thermal runaway warning due to acquisition problems.

[0014] Optionally, the busbar is provided in multiple ways, and the distance between any two voltage acquisition terminals connected to the same busbar does not exceed 10mm.

[0015] When the spacing is controlled within 10mm, the line resistance of the bus is extremely small at a short distance of 10mm, and the voltage drop of the current flowing through this section is negligible. All voltage acquisition terminals on the same bus are at almost the same potential point, and the acquired voltage data are highly consistent. The BMS does not need to process data deviations. It can directly and quickly determine the true voltage of a battery cell by comparing multiple acquired signals, avoiding false data interference with protection strategies caused by line resistance (such as misjudging voltage abnormalities).

[0016] Optionally, the voltage acquisition device includes multiple voltage acquisition lines, each of which has a voltage acquisition terminal.

[0017] This helps reduce the manufacturing cost of CCS components.

[0018] Optionally, multiple busbars are provided, and the CCS component further includes a temperature acquisition element, with at least one busbar connected to the temperature acquisition element.

[0019] After the temperature sensor is connected to the busbar, the collected temperature information can be promptly fed back to the BMS. The BMS uses this temperature data to effectively manage the battery temperature, ensuring the battery operates within a suitable temperature range and extending its lifespan.

[0020] Optionally, each of the busbars is connected to the temperature acquisition device.

[0021] In this way, the temperature data of each individual cell assembled with the CCS module can be measured, which helps to reduce the risk of battery thermal runaway.

[0022] Optionally, some of the busbars are connected to the temperature acquisition devices.

[0023] Therefore, not every bus is equipped with a temperature sensor, which helps to save on the manufacturing cost of CCS components.

[0024] Optionally, the CCS component includes two connecting buses and multiple intermediate buses, with one connecting bus, multiple intermediate buses, and another connecting bus arranged sequentially for current to flow through sequentially, and at least one connecting bus connected to the temperature acquisition device.

[0025] In this way, the highest temperature of multiple busbars can be detected by monitoring the temperature of the connected busbars. Compared with the solution of setting a temperature sensor on each busbar, this solution has a lower cost.

[0026] Optionally, the CCS component includes two connecting buses and multiple intermediate buses, one of the connecting buses, the multiple intermediate buses, and another connecting bus for sequentially supplying current, and at least one of the intermediate buses is connected to the temperature acquisition device.

[0027] In this way, it is possible to detect in a timely manner whether the battery cells corresponding to the intermediate busbar have experienced thermal runaway, which helps to reduce the probability of thermal runaway.

[0028] Optionally, the temperature acquisition element is connected to the busbar via thermally conductive adhesive.

[0029] This allows the busbar to efficiently transfer heat to the temperature sensor.

[0030] According to a second aspect of this application, a battery is provided, including the aforementioned CCS component.

[0031] According to a third aspect of this application, an electrical device is also provided, including the aforementioned battery.

[0032] In the CCS component of this application embodiment, the busbar connects multiple voltage acquisition terminals simultaneously, forming a multi-point redundant path. Among the multiple voltage acquisition terminals connected to the same busbar, even if one or more voltage acquisition terminals cannot acquire signals normally due to poor contact, the remaining normally connected voltage acquisition terminals can still stably acquire the battery cell voltage through the busbar. This is equivalent to adding a backup channel for voltage acquisition, ensuring that the acquired voltage data always reflects the true state of the battery cell. Voltage data is a key basis for judging battery status and warning of risks, and the accuracy of the data is directly related to battery safety. Ensuring the accuracy of voltage data through multiple voltage acquisition terminals enables the BMS to monitor the voltage anomalies of battery cells (overcharge, over-discharge, short circuit, etc.) in real time and accurately, thereby reducing the risk of battery thermal runaway.

[0033] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0035] Figure 1 This is a schematic diagram of the overall structure of the electrical equipment provided in the exemplary embodiments of this disclosure; Figure 2 This is a schematic diagram of the overall structure of the CCS component provided in an exemplary embodiment of this disclosure; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 2 Enlarged view of point B in the middle; Figure 5 yes Figure 2 Enlarged view of point C in the middle; Figure 6 yes Figure 2 Enlarged view of point D in the middle.

[0036] Explanation of reference numerals in the attached figures: 100 Electrical equipment; 200 Battery; 300 CCS module; 400 Voltage acquisition device; 410 Voltage acquisition line; 411 Voltage acquisition terminal; 500 Temperature acquisition device; 600 Busbar; 610 Connecting busbar; 620 Intermediate busbar. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0038] Reference Figure 1 This application provides a battery 200. The battery 200 mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. For example, the battery 200 mentioned in this application may include a battery module or battery pack, etc. The battery 200 generally includes a battery case for encapsulating one or more battery cells. The battery case can prevent liquids or other foreign matter from affecting the charging or discharging of the battery cells.

[0039] The battery cell mentioned in the embodiments of this application may include an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The battery cell mainly relies on the movement of metal ions between the positive and negative electrode plates to operate. The positive electrode includes a positive current collector and a positive active material layer, with the positive active material layer coated on the surface of the positive current collector. The positive current collector includes a positive electrode coating area and a positive electrode tab connected to the positive electrode coating area. The positive electrode coating area is coated with the positive active material layer, while the positive electrode tab is not coated with the positive active material layer. Taking a lithium-ion battery cell as an example, the material of the positive current collector can be aluminum, and the positive active material layer includes positive active material, which can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, the negative electrode active material layer being coated on the surface of the negative electrode current collector. The negative electrode current collector includes a negative electrode coating area and a negative electrode tab connected to the negative electrode coating area. The negative electrode coating area is coated with the negative electrode active material layer, while the negative electrode tab is not coated with the negative electrode active material layer. The material of the negative electrode current collector can be copper, and the negative electrode active material layer includes negative electrode active material, which can be carbon or silicon, etc. The material of the separator can be PP (polypropylene) or PE (polyethylene), etc.

[0040] Currently, the application of Battery 200 is becoming increasingly widespread. Battery 200 is not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of the application fields of Battery 200, its market demand is also constantly increasing.

[0041] The battery 200 described in this application embodiment is used in electrical device 100.

[0042] Electrical equipment 100 can be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. This application embodiment does not impose any special limitations on the above-mentioned electrical equipment 100.

[0043] For ease of explanation, the following embodiments will use a new energy vehicle as an example for illustrating the electrical equipment 100.

[0044] New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery 200 is installed inside the vehicle, and the battery 200 can be located at the bottom, front, or rear of the vehicle. The battery 200 can be used to power the vehicle; for example, the battery 200 can serve as the vehicle's operating power source. The vehicle may also include a controller and a motor. The controller is used to control the battery 200 to power the motor, for example, to meet the power needs of starting, navigation, and driving the vehicle.

[0045] Reference Figures 2 to 6 In one embodiment, the CCS component 300 includes a voltage acquisition unit 400 and a bus 600. The voltage acquisition unit 400 has multiple voltage acquisition terminals 411. The bus 600 is connected to multiple voltage acquisition terminals 411, and the multiple voltage acquisition terminals 411 connected to the same bus 600 are used to connect to the same battery cell.

[0046] This reduces the risk of data acquisition failure due to poor contact and improves the accuracy of voltage data.

[0047] In related technologies, the bus 600 connects only one voltage acquisition terminal 411, which is a single-point dependency. Once the voltage acquisition terminal 411 experiences poor contact due to vibration (such as road conditions after the battery 200 is installed in the vehicle), oxidation (aging of metal contacts after long-term use), assembly errors (insufficient contact pressure during production), etc., the only acquisition path will be interrupted or the signal will be attenuated, resulting in distorted voltage data (such as being too high, too low, or fluctuating).

[0048] In this disclosure, bus 600 connects multiple voltage acquisition terminals 411 simultaneously. These multiple voltage acquisition terminals 411 connected to the same bus 600 are used to connect to the same battery cell and are all used to acquire the voltage of the same battery cell, forming a multi-point redundant path. Even if one or more of the voltage acquisition terminals 411 connected to the same battery cell have poor contact, the remaining normally connected voltage acquisition terminals 411 can still stably acquire the battery cell voltage through bus 600. This is equivalent to adding a backup channel for voltage acquisition, ensuring that the acquired voltage data always reflects the true state of the battery cell.

[0049] In addition, it significantly reduces the risk of thermal runaway in Battery 200 and improves the safety level of Battery 200.

[0050] Voltage data is a key basis for judging the status of battery 200 and warning of risks, and the accuracy of the data is directly related to the safety of battery 200.

[0051] In related technologies, inaccurate voltage acquisition can lead to errors in the Battery Management System's (BMS) assessment of the battery cell's state. For example, a battery cell may actually be overcharged (voltage too high), but due to poor contact at the voltage acquisition terminal 411, the BMS may misjudge the voltage as normal, failing to trigger overcharge protection. This can cause a large amount of heat to be generated inside the battery 200 due to lithium dendrite growth and electrolyte decomposition, ultimately leading to thermal runaway. Alternatively, if a battery cell has an internal short circuit (voltage drop), but the acquired data is distorted, the BMS may fail to recognize it in time. The continuous heat generated at the short circuit point can also induce thermal runaway.

[0052] This disclosure ensures accurate voltage data through multiple voltage acquisition terminals 411, enabling the BMS to monitor voltage anomalies (overcharge, over-discharge, short circuit, etc.) of individual battery cells in real time, thereby reducing the risk of thermal runaway of the battery 200.

[0053] In some embodiments, multiple busbars 600 are provided, and each busbar 600 is connected to multiple voltage acquisition terminals 411.

[0054] It is understandable that the positive and negative terminals of a single battery cell are connected to a busbar 600. If each busbar 600 is connected to multiple voltage acquisition terminals 411, even if a voltage acquisition terminal 411 connected to a certain busbar 600 becomes loose, the voltage data of multiple battery cells assembled with the CCS module 300 can still be measured more accurately, reducing the occurrence of situations where the voltage of a certain battery cell cannot be measured.

[0055] However, this design is not limited to this. In some other embodiments, multiple busbars 600 are provided, and some busbars 600 are respectively connected to multiple voltage acquisition terminals 411.

[0056] Thus, not every bus 600 is connected to multiple voltage acquisition terminals 411, which helps reduce the manufacturing cost of the CCS component 300.

[0057] In some embodiments, the distance between any two voltage acquisition terminals 411 among the plurality of voltage acquisition terminals 411 connected to the same bus 600 does not exceed 10 mm.

[0058] This ensures a high degree of consistency in voltage data collected on the same bus 600, reducing data deviations that could mislead BMS judgments.

[0059] The core function of bus 600 is to conduct the current and voltage signals of individual battery cells, but it itself has a small resistance (i.e., line resistance). If the distance between the two voltage acquisition terminals 411 on the same bus 600 is too large, a small voltage drop will occur when the current flows through the bus 600 due to the line resistance (following Ohm's law: U=IR). This will cause a difference in the voltage acquired by different voltage acquisition terminals 411. This difference is not the actual voltage difference of the individual battery cells, but rather a measurement deviation caused by the line resistance of the bus 600.

[0060] When the spacing is controlled within 10mm, the line resistance of the bus 600 is extremely small at a short distance of 10mm, and the voltage drop of the current flowing through this section is negligible. All voltage acquisition terminals 411 on the same bus 600 are almost at the same potential point, and the acquired voltage data are highly consistent. The BMS does not need to process data deviations. It can directly and quickly determine the true voltage of the battery cell by comparing multiple acquired signals, avoiding false data interference with protection strategies (such as misjudging voltage abnormalities) caused by line resistance.

[0061] In one example, the distance between any two voltage acquisition terminals 411 among the multiple voltage acquisition terminals 411 connected to the same bus 600 may be, but is not limited to, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm or 10 mm.

[0062] In some embodiments, the number of voltage acquisition terminals 411 connected to the same bus 600 is two.

[0063] In related technologies, a single voltage acquisition terminal 411 has zero redundancy, and poor contact will lead to acquisition failure; while two voltage acquisition terminals 411 are the minimum configuration for achieving redundancy protection, which can achieve the goal with minimal design changes (only adding one voltage acquisition terminal 411).

[0064] The two voltage acquisition terminals 411 form a dual-path backup. Even if one of them has poor contact due to vibration, oxidation, or assembly errors, the other normally connected voltage acquisition terminal 411 can still stably acquire the voltage of the battery cell, directly cutting off the risk chain of single-point failure, ensuring that the voltage data is uninterrupted and undistorted, and fundamentally avoiding the failure of thermal runaway warning due to acquisition problems.

[0065] However, this design is not limited to this. In some other embodiments, the bus 600 is connected to three, four, or five voltage acquisition terminals 411.

[0066] The voltage acquisition device 400 has many structural forms. In some embodiments, the voltage acquisition device 400 includes multiple voltage acquisition lines 410, each of which has a voltage acquisition terminal 411. The manufacturing technology of the voltage acquisition lines 410 is mature, making the voltage acquisition lines 410 easy to obtain.

[0067] However, this design is not limited to this. In some other embodiments, the voltage acquisition device 400 is configured as an FFC (Flexible Flat Cable), which includes a main body and a plurality of branches arranged at an angle to the main body, each branch having a voltage acquisition terminal 411.

[0068] In some embodiments, the bus 600 is provided with multiple busbars, and the CCS component 300 also includes a temperature acquisition element 500, with at least one busbar 600 connected to the temperature acquisition element 500.

[0069] After the temperature acquisition unit 500 is connected to the busbar 600, the acquired temperature information can be fed back to the BMS in a timely manner. The BMS uses this temperature data to effectively manage the temperature of the battery 200, ensuring that the battery 200 operates within a suitable temperature range and extending the battery 200's service life.

[0070] In one example, the temperature acquisition element 500 is configured as a thermistor.

[0071] In some embodiments, a portion of the bus 600 is connected to a temperature acquisition device 500.

[0072] Therefore, not every bus 600 is equipped with a temperature acquisition element 500, which helps to save on the manufacturing cost of the CCS component 300.

[0073] However, this design is not limited to this. In some other embodiments, each bus 600 is connected to a temperature acquisition device 500.

[0074] In this way, the temperature data of each battery cell assembled with the CCS module 300 can be measured, which helps to reduce the risk of thermal runaway of the battery 200.

[0075] Multiple busbars 600 include connecting busbars 610 and intermediate busbars 620. Researchers have found that during the charging and discharging process of battery 200, the temperature of connecting busbar 610 is higher than that of intermediate busbar 620. To reduce the risk of thermal runaway of battery 200, in some embodiments, CCS component 300 includes two connecting busbars 610 and multiple intermediate busbars 600. One connecting busbar 610, multiple intermediate busbars 600, and another connecting busbar 610 are used to supply current sequentially; at least one connecting busbar 610 is connected to a temperature sensing element 500; and / or, at least one intermediate busbar 600 is connected to a temperature sensing element 500.

[0076] In this way, the maximum temperature of multiple busbars 600 can be detected by monitoring the temperature of the connected busbar 610. Compared with the solution of setting a temperature detection element in each busbar 600, this solution has a lower cost.

[0077] In one example, there are two connecting busbars 610, and each of the two connecting busbars 610 is connected to a temperature acquisition device 500.

[0078] In some embodiments, the CCS component 300 includes two connecting buses 610 and a plurality of intermediate buses 600. One connecting bus 610, the plurality of intermediate buses 600 and another connecting bus 610 are arranged sequentially and used to supply current to flow through them sequentially. At least one intermediate bus 600 is connected to a temperature acquisition device 500.

[0079] In this way, it is possible to detect in time whether the battery cell corresponding to the intermediate busbar 620 has thermal runaway, which helps to reduce the probability of thermal runaway of battery 200.

[0080] In one example, two intermediate busbars 620 are each connected to a temperature acquisition unit 500.

[0081] It is worth mentioning that, in one example, multiple busbars 600 are used to connect multiple battery cells in series.

[0082] In some embodiments, the temperature acquisition element 500 is bonded to the busbar 600 by thermally conductive adhesive.

[0083] This enables the busbar 600 to efficiently transfer heat to the temperature sensor 500.

[0084] However, this design is not limited to this. In some other embodiments, the temperature acquisition element 500 is welded to the bus 600.

[0085] In some embodiments, the bus 600 may be configured as a copper bus or an aluminum bus.

[0086] To understand this disclosure, a general overview of this disclosure is provided below.

[0087] To address the issue of insufficient voltage detection points in battery 200, this disclosure redundantly increases the number of voltage acquisition points for the LF310 1P9S battery cell in battery 200. Specifically, 18 voltage acquisition points are arranged for each battery 200, and 4 temperature acquisition points are placed on both sides of the CCS module 300. At this time, the data collected by the CCS module 300 can collect the actual voltage and redundant voltage of each battery cell in battery 200. Meanwhile, the four preset temperature acquisition points can detect the overall temperature status of the entire module and transmit the voltage data, redundant voltage data, and temperature data to the BMS system in a timely manner. This allows for accurate detection of the status of each battery cell and timely handling of potential thermal runaway risks.

[0088] In one example, four temperature sensors 500 are placed at the first, fourth, sixth, and ninth battery cells, and the temperature sensors 500 are fixed with thermally conductive adhesive.

[0089] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0090] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0091] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0092] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A CCS component, characterized in that, include: The voltage acquisition device is equipped with multiple voltage acquisition terminals; as well as A busbar is connected to multiple voltage acquisition terminals, and the multiple voltage acquisition terminals connected to the same busbar are used to connect to the same battery cell.

2. The CCS component according to claim 1, characterized in that, The busbars are provided in multiple manner, and each busbar is connected to multiple voltage acquisition terminals; Alternatively, multiple busbars may be provided, and some of the busbars may be connected to multiple voltage acquisition terminals respectively.

3. The CCS component according to claim 1, characterized in that, The number of voltage acquisition terminals connected to the same busbar is two; And / or, the busbar is provided in multiple manner, and the distance between any two voltage acquisition terminals among the multiple voltage acquisition terminals connected to the same busbar does not exceed 10mm.

4. The CCS component according to any one of claims 1 to 3, characterized in that, The voltage acquisition device includes multiple voltage acquisition lines, and each of the voltage acquisition lines has a voltage acquisition terminal.

5. The CCS component according to any one of claims 1 to 3, characterized in that, The busbars are provided in multiple locations, and the CCS component also includes a temperature acquisition device, with at least one of the busbars connected to the temperature acquisition device.

6. The CCS component according to claim 5, characterized in that, Each of the aforementioned busbars is connected to the temperature acquisition device; Alternatively, some of the busbars may be connected to the temperature acquisition devices.

7. The CCS component according to claim 6, characterized in that, The CCS component includes two connecting buses and multiple intermediate buses. One connecting bus, multiple intermediate buses, and another connecting bus are arranged sequentially and used to supply current to flow through them sequentially. At least one of the aforementioned connection busbars is connected to the temperature acquisition device; And / or, at least one of the intermediate busbars is connected to the temperature acquisition element.

8. The CCS component according to claim 6, characterized in that, The temperature acquisition element is connected to the busbar via thermally conductive adhesive.

9. A battery, characterized in that, Includes the CCS component as described in any one of claims 1 to 8.

10. An electrical appliance, characterized in that, Includes the battery as described in claim 9.

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