WO2022082387A1 - 电池、用电装置、制备电池的方法和装置 - Google Patents

电池、用电装置、制备电池的方法和装置 Download PDF

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Publication number
WO2022082387A1
WO2022082387A1 PCT/CN2020/121990 CN2020121990W WO2022082387A1 WO 2022082387 A1 WO2022082387 A1 WO 2022082387A1 CN 2020121990 W CN2020121990 W CN 2020121990W WO 2022082387 A1 WO2022082387 A1 WO 2022082387A1
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WO
WIPO (PCT)
Prior art keywords
battery
fire
sensing
isolation layer
fighting
Prior art date
Application number
PCT/CN2020/121990
Other languages
English (en)
French (fr)
Inventor
梁成都
洪家荣
杨海奇
黄小腾
汪文礼
胡浪超
薛城
Original Assignee
江苏时代新能源科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏时代新能源科技有限公司 filed Critical 江苏时代新能源科技有限公司
Priority to HUE20827972A priority Critical patent/HUE060296T2/hu
Priority to EP20827972.9A priority patent/EP4016708B1/en
Priority to PL20827972.9T priority patent/PL4016708T3/pl
Priority to JP2023506541A priority patent/JP7457872B2/ja
Priority to PCT/CN2020/121990 priority patent/WO2022082387A1/zh
Priority to KR1020237003541A priority patent/KR20230031347A/ko
Priority to US17/138,818 priority patent/US11996580B2/en
Publication of WO2022082387A1 publication Critical patent/WO2022082387A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/383—Flame arresting or ignition-preventing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
    • A62C3/10—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in ships
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/375—Vent means sensitive to or responsive to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the embodiments of the present application relate to the field of batteries, and more particularly, to a battery, an electrical device, and a method and device for preparing a battery.
  • Embodiments of the present application provide a battery, an electrical device, and a method and device for preparing a battery, which can enhance the safety of the battery.
  • a battery comprising: a battery cell, including a pressure relief mechanism, the pressure relief mechanism being actuated to release the internal pressure when the internal pressure or temperature of the battery cell reaches a threshold value; fire protection A pipeline for accommodating a fire fighting medium, and the fire fighting pipeline is used for discharging the fire fighting medium when the pressure relief mechanism is actuated; wherein, the fire fighting pipeline is covered with an isolation layer, and the isolation layer is used for blocking gas generated from contact with the fire fighting pipeline condensate.
  • the battery provided in the embodiment of the present application may include one or more battery cells, and the battery cell is provided with a pressure relief mechanism, and the pressure relief mechanism can be actuated when the internal temperature or pressure of the battery cell exceeds a threshold value to release the pressure.
  • the internal pressure is released; a fire fighting pipeline is arranged above the pressure relief mechanism.
  • the pressure relief mechanism When the pressure relief mechanism is actuated, the discharge discharged by the pressure relief mechanism can damage the fire fighting pipeline, so that the fire fighting medium contained in the fire fighting pipeline flows out and flows to the battery cells to cool the battery cells; at the same time, the fire pipeline is covered with an isolation layer, which can be used to reduce the probability of condensate forming on the fire pipeline, thereby reducing or even preventing the condensate from causing damage to the battery. impact and improve the safety of the battery.
  • the battery further includes: a bus component including a bus unit and a bus connection port; the bus unit is used to realize electrical connection of the plurality of battery cells, and the bus connection port is used to output the plurality of battery cells
  • a bus component including a bus unit and a bus connection port; the bus unit is used to realize electrical connection of the plurality of battery cells, and the bus connection port is used to output the plurality of battery cells
  • the fire fighting pipeline is covered with the isolation layer in the area corresponding to the confluence connection port.
  • the fire fighting pipeline is covered with an isolation layer in the area corresponding to the confluence connection port, so as to reduce the probability of condensate forming in the area corresponding to the confluence connection port, and reduce or even prevent the condensate from causing electrical damage to the confluence connection port.
  • the isolation layer can also be used to prevent the fire-fighting pipeline from overlapping with the electrical connector connected to the bus connection port, resulting in a short-circuit ignition problem, so as to improve the safety of the battery.
  • the battery further includes: a sensing component including a sensing unit, a transmission line and a sensing port; the sensing unit is used for sensing the states of the plurality of battery cells, and the sensing port is used for The state signals of the plurality of battery cells are output through the transmission line; the fire-fighting pipeline is covered with the isolation layer in the area corresponding to the sensing port.
  • a sensing component including a sensing unit, a transmission line and a sensing port
  • the sensing unit is used for sensing the states of the plurality of battery cells
  • the sensing port is used for The state signals of the plurality of battery cells are output through the transmission line
  • the fire-fighting pipeline is covered with the isolation layer in the area corresponding to the sensing port.
  • the area corresponding to the sensing port is covered with an isolation layer on the fire fighting pipeline, so as to reduce the probability of condensate forming in the area corresponding to the sensing port, and reduce or even prevent the condensate from causing electrical damage to the sensing port. performance and improve the safety of the battery.
  • the bus connection port and the sensing port of the sensing component are located on the same side of the plurality of battery cells.
  • the area corresponding to the confluence connection port of the fire fighting pipeline and the area corresponding to the sensing port of the fire fighting pipeline may be the same or similar areas. Therefore, compared with the case where the fire-fighting pipeline is in different areas in the area corresponding to the confluence connection port and the fire-fighting pipeline in the area corresponding to the sensing port, using the technical solutions of the embodiments of the present application, the fire-fighting pipeline does not need to be packaged in multiple different areas. It is only necessary to coat the isolation layer in the same area to reduce or even prevent the condensate from affecting the bus connection port and the sensing port. On the premise of ensuring the safety performance of the battery, the use of the isolation layer can be reduced , which can not only reduce the cost but also make the fire pipeline play a better cooling effect.
  • the fire duct includes a plurality of first portions and at least one second portion, the plurality of first portions are arranged parallel to each other and extend along the stacking direction of the plurality of battery cells, and the at least one second portion is Each second part is connected to the ends of two adjacent first parts among the plurality of first parts; wherein the plurality of first parts are disposed at a distance from the plurality of pressure relief mechanisms of the plurality of battery cells away from the plurality of first parts One side inside the battery cell.
  • the sensing ports of the sensing components of the battery are disposed in corresponding regions of the ends of the plurality of first portions.
  • the bus connection port of the bus element is disposed on one side of the sensing port of the sensing element of the battery.
  • At least a portion of the second portion encapsulates the isolation layer.
  • At least part of the area of the second part connecting the ends of the first part is covered with an isolation layer, so as to reduce or even prevent the condensate formed on the second part from causing the transmission interface and/or the bus connection port to be caused Influence.
  • the orthographic projection of the region coated with the isolation layer in the second portion in the first plane does not overlap with the orthographic projection of the plurality of battery cells in the first plane, wherein the The first plane is a plane perpendicular to the height direction of the plurality of battery cells.
  • the fire-fighting pipeline can be closely arranged above the plurality of battery cells to reduce the distance between the fire-fighting pipeline and the plurality of battery cells, thereby improving the cooling effect of the fire-fighting pipeline on the plurality of battery cells .
  • the fire fighting medium inlet or the fire fighting medium outlet of the fire fighting pipeline is connected with the first part, and the connection area between the first part and the fire fighting medium inlet or the fire fighting medium outlet covers the isolation layer.
  • the fire-fighting medium inlet or fire-fighting medium outlet connected to the end of the first part is coated with an isolation layer, so as to reduce or even prevent the condensate formed on the fire-fighting medium inlet or fire-fighting medium outlet to the transmission interface and/or the confluence connection port is affected.
  • the first portion does not coat the isolation layer, and the first portion is used to cool the plurality of battery cells.
  • the first part does not cover the isolation layer, and the first part that does not cover the isolation layer can be used for cooling the battery cells.
  • the isolation layer is a non-absorbent material.
  • the isolation layer is made of a non-absorbent material to prevent the isolation layer from absorbing the fire-fighting liquid after the fire-fighting pipeline discharges the fire-fighting liquid, which affects the cooling effect, and also reduces the temperature in the pipeline.
  • the probability of introducing liquid at the isolation layer reduces the impact of liquid on the battery cell and other electrical structures in the battery.
  • the isolation layer is closed-cell foam, and the cells in the closed-cell foam are closed-cell cells.
  • the isolation layer is closed-cell foam
  • the cells in the closed-cell foam are closed-cell cells, which have excellent impact resistance, resilience, softness, heat insulation, and water resistance. , steam resistance and other advantages, easy to wrap to fire pipelines.
  • the isolation layer is used to isolate the fire duct and the manifold.
  • the battery further includes: an insulating medium layer disposed between the fire fighting pipeline and the battery cell.
  • the thickness of the isolation layer is greater than 1 mm.
  • the thickness of the isolation layer is greater than 1 mm to ensure good thermal insulation performance. And if the isolation layer is closed-cell foam with a thickness of more than 1mm, when the fire pipeline is impacted and collides with other components in the battery, it can play a buffering role.
  • an electrical device including: the first aspect or the battery according to any one of the embodiments of the first aspect.
  • the powered device is a vehicle, a ship, or a spacecraft.
  • a method of manufacturing a battery comprising: providing a battery cell, the battery cell including a pressure relief mechanism for actuating when the internal pressure or temperature of the battery cell reaches a threshold value to Relieving the internal pressure; providing a fire fighting conduit containing a fire fighting medium for discharging the fire fighting medium when the pressure relief mechanism is actuated, wherein the fire fighting conduit is coated with an isolation layer used for Condensate is generated when the barrier gas contacts the fire pipeline.
  • the method further includes: providing a bus component, the bus component including a bus unit and a bus connection port; the bus unit is used to realize the electrical connection of a plurality of battery cells, and the bus connection port is used for outputting the multiple battery cells.
  • the electric energy of each battery cell; the fire-fighting pipeline is covered with the isolation layer in the area corresponding to the bus connection port.
  • the method further includes: providing a sensing component, the sensing component including a sensing unit, a transmission line and a sensing port; the sensing unit for sensing the state of the plurality of battery cells, the The sensing port is used for outputting the status signals of the plurality of battery cells through the transmission line; the fire fighting pipeline is covered with the isolation layer in the area corresponding to the sensing port.
  • the orthographic projection of the region covered with the isolation layer in the fire duct in the first plane does not overlap with the orthographic projection of the plurality of battery cells in the first plane, wherein the first plane A plane is a plane perpendicular to the height direction of the plurality of battery cells.
  • the isolation layer is a non-absorbent material.
  • an apparatus for preparing a battery including a module for performing the method of the third aspect above.
  • FIG. 1 is a schematic diagram of a vehicle according to an embodiment of the application.
  • FIG. 2 is a schematic structural diagram of a battery according to an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a battery module according to an embodiment of the present application.
  • FIG. 4 is an exploded view of a battery cell according to an embodiment of the application.
  • FIG. 5 is a schematic exploded view of a battery according to an embodiment of the present application.
  • FIG. 6 is a schematic exploded view of a battery according to another embodiment of the present application.
  • FIG. 7 is a schematic exploded view of a battery according to another embodiment of the present application.
  • FIG. 8 is a schematic exploded view of a battery according to another embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a fire fighting pipeline according to another embodiment of the application.
  • Figure 10 is a schematic top view of the fire fighting pipeline in Figure 9;
  • FIG. 11 is a schematic exploded view of a battery according to another embodiment of the present application.
  • Figure 12 is a schematic top view of the fire fighting pipeline in Figure 11;
  • FIG. 13 is a schematic exploded view of a battery according to another embodiment of the application.
  • FIG. 14 is a partially enlarged schematic structural diagram of a battery according to an embodiment of the present application.
  • FIG. 15 is a partially enlarged structural schematic diagram of a battery according to another embodiment of the present application.
  • 16 is a schematic top view of a battery according to an embodiment of the application.
  • 17 is a schematic flowchart of a method for preparing a battery according to an embodiment of the present application.
  • FIG. 18 is a schematic block diagram of an apparatus for preparing a battery according to an embodiment of the present application.
  • the terms “installed”, “connected”, “connected” and “attached” should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two components.
  • installed should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two components.
  • multiple refers to two or more (including two), and similarly, “multiple groups” refers to two or more groups (including two groups), and “multiple sheets” refers to two or more sheets (includes two pieces).
  • the battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., which are not limited in the embodiments of the present application.
  • the battery cell may be in the form of a cylinder, a flat body, a rectangular parallelepiped, or other shapes, which are not limited in the embodiments of the present application.
  • the battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square-shaped battery cells, and soft-pack battery cells, which are not limited in the embodiments of the present application.
  • the battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the batteries mentioned in this application may include battery modules or battery packs, and the like.
  • Batteries typically include a case for enclosing one or more battery cells. The box can prevent liquids or other foreign objects from affecting the charging or discharging of the battery cells.
  • the battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator.
  • the battery cell mainly relies on the movement of metal ions between the positive and negative plates to work.
  • the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer, the positive electrode active material layer is coated on the surface of the positive electrode current collector, the current collector without the positive electrode active material layer protrudes from the current collector coated with the positive electrode active material layer, and the positive electrode active material layer is not coated.
  • the current collector coated with the positive electrode active material layer serves as the positive electrode tab.
  • the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganate.
  • the negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer, the negative electrode active material layer is coated on the surface of the negative electrode current collector, the current collector without the negative electrode active material layer protrudes from the current collector coated with the negative electrode active material layer, The current collector coated with the negative electrode active material layer was used as the negative electrode tab.
  • the material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon.
  • the number of positive tabs is multiple and stacked together, and the number of negative tabs is multiple and stacked together.
  • the material of the diaphragm can be PP or PE, etc.
  • the electrode assembly may be a wound structure or a laminated structure, and the embodiment of the present application is not limited thereto.
  • the main safety hazard comes from the charging and discharging process, as well as appropriate ambient temperature design.
  • the protection measures include at least switch elements, selection of appropriate isolation diaphragm materials and pressure relief mechanisms.
  • the switching element refers to an element that can stop the charging or discharging of the battery when the temperature or resistance in the battery cell reaches a certain threshold.
  • the separator is used to separate the positive electrode sheet and the negative electrode sheet. When the temperature rises to a certain value, the micro-scale (or even nano-scale) micropores attached to it can be automatically dissolved, so that the metal ions cannot pass through the separator and terminate the battery. Internal reactions of monomers.
  • the pressure relief mechanism refers to an element or component that is actuated to relieve the internal pressure or temperature when the internal pressure or temperature of the battery cell reaches a predetermined threshold.
  • the threshold design varies according to different design requirements.
  • the threshold value may depend on the materials of one or more of the positive electrode sheet, the negative electrode sheet, the electrolyte and the separator in the battery cell.
  • the pressure relief mechanism can take the form of an explosion-proof valve, a gas valve, a pressure relief valve or a safety valve, etc., and can specifically adopt a pressure-sensitive or temperature-sensitive element or structure, that is, when the internal pressure or temperature of the battery cell reaches a predetermined threshold When the pressure relief mechanism performs an action or the weak structure provided in the pressure relief mechanism is damaged, an opening or channel for releasing the internal pressure or temperature is formed.
  • the "actuation" mentioned in this application means that the pressure relief mechanism is actuated or activated to a certain state, so that the internal pressure and temperature of the battery cell can be released.
  • Actions produced by the pressure relief mechanism may include, but are not limited to, at least a portion of the pressure relief mechanism being ruptured, shattered, torn or opened, and the like.
  • the emissions from the battery cells mentioned in this application include but are not limited to: electrolyte, dissolved or split positive and negative electrode sheets, fragments of separators, high temperature and high pressure gas generated by the reaction, flames, and the like.
  • the pressure relief mechanism on the battery cell has an important impact on the safety of the battery. For example, when a short circuit, overcharge, etc. occurs, it may cause thermal runaway inside the battery cell, resulting in a sudden rise in pressure or temperature. In this case, the internal pressure and temperature can be released through the actuation of the pressure relief mechanism to prevent the battery cells from exploding and catching fire.
  • the main focus is to release the high pressure and high heat inside the battery cell, that is, to discharge the exhaust to the outside of the battery cell.
  • High-temperature and high-pressure discharges are discharged toward the direction in which the pressure relief mechanism is provided for the battery cells, and may be discharged more specifically in the direction of the area where the pressure relief mechanism is actuated. Enough to break through one or more structures in that direction, creating a safety problem.
  • high voltage and high heat inside the battery cell may continue to be generated, resulting in continued safety hazards.
  • a fire protection system can be installed in the battery box, and the fire protection pipeline of the fire protection system is arranged above the wall of the battery cell where the pressure relief mechanism is arranged.
  • the pressure relief mechanism When the pressure relief mechanism is activated, the fire-fighting pipeline discharges the fire-fighting medium, so that the discharge from the pressure-relief mechanism can be cooled to reduce the risk of the discharge; the fire-fighting medium can further flow into the battery through the actuated pressure relief mechanism Inside the cell, thereby further cooling the battery cell and enhancing the safety of the battery.
  • the pressure relief mechanism when the pressure relief mechanism is actuated, the discharge from the battery cell can damage the fire fighting duct, so that the fire fighting medium in the fire fighting duct is discharged.
  • the fire-fighting pipeline in the embodiment of the present application is used for containing fire-fighting medium, and the fire-fighting medium here may be a fluid, and the fluid may be a liquid or a gas.
  • the fire fighting pipeline may not contain any substance, but when the pressure relief mechanism is actuated, the fire fighting medium can be contained in the fire fighting pipeline, for example, the fire fighting can be controlled by switching the valve The medium enters the fire pipeline.
  • the fire-fighting pipeline may always contain a fire-fighting medium, and the fire-fighting medium may also be used to adjust the temperature of the battery cells. Adjusting the temperature refers to heating or cooling a plurality of battery cells.
  • the fire fighting pipeline is used to contain the cooling fluid to reduce the temperature of the plurality of battery cells.
  • the contained fire fighting medium may also be referred to as cooling medium or cooling fluid, and more specifically, may be referred to as cooling liquid or cooling gas.
  • the fire fighting medium can be circulated to achieve better temperature regulation.
  • the fire-fighting medium can be water, a mixture of water and glycol, or air, or the like.
  • the present application provides a technical solution, by covering the components with lower temperature in the battery, such as the fire-fighting pipeline, with an isolation layer to isolate the gas and the fire-fighting pipeline, thus reducing the probability of forming condensate on the fire-fighting pipeline, This reduces or even prevents the condensate from affecting the electrical connection area or other electrical areas in the battery, thereby enhancing the safety of the battery.
  • thermal management components, confluence components and other components of the battery may also be included.
  • a structure for fixing the battery cells may also be provided in the box.
  • the shape of the case may be determined according to the plurality of battery cells accommodated.
  • the box may be square with six walls.
  • Thermal management components are used to contain fluids to regulate the temperature of the plurality of battery cells.
  • the fluid here can be liquid or gas, and adjusting the temperature refers to heating or cooling a plurality of battery cells.
  • the thermal management component is used to contain a cooling fluid to reduce the temperature of the plurality of battery cells.
  • the thermal management component may also be called a cooling component, a cooling system or a cooling plate, etc.
  • the fluid it contains can also be called cooling medium or cooling fluid, more specifically, it can be called cooling liquid or cooling gas.
  • the thermal management component may also be used for heating to heat up a plurality of battery cells, which is not limited in the embodiment of the present application.
  • the fluid can be circulated to achieve better temperature regulation.
  • the fluid may be water, a mixture of water and ethylene glycol, or air, or the like.
  • the bus components are used to realize electrical connection between a plurality of battery cells, such as parallel connection or series connection or hybrid connection.
  • the bus part can realize electrical connection between the battery cells by connecting the electrode terminals of the battery cells.
  • the bus members may be fixed to the electrode terminals of the battery cells by welding.
  • the electrical connection formed by the bus component may also be referred to as a "high voltage connection”.
  • a sensing device for sensing the state of the battery cells may also be provided in the battery.
  • the electrical connections within the battery may include electrical connections formed by bus components and/or electrical connections in sensing devices.
  • a pressure balancing mechanism may also be provided on the casing of the battery for balancing the pressure inside and outside the casing. For example, when the pressure inside the box is higher than outside the box, the gas inside the box can flow to the outside of the box through the pressure balance mechanism; when the pressure inside the box is lower than outside the box, the gas outside the box can pass the pressure The balance mechanism flows into the inside of the box.
  • each component in the battery case described above should not be construed as a limitation on the embodiments of the present application, that is, the battery case in the embodiments of the present application may include the above-mentioned components or may not include the above components.
  • the technical solutions described in the embodiments of this application are all applicable to various devices using batteries, such as mobile phones, portable devices, notebook computers, battery cars, electric toys, electric tools, electric vehicles, ships, and spacecraft.
  • the spacecraft includes Planes, rockets, space shuttles and spaceships, etc.
  • the vehicle 1 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or Extended range cars, etc.
  • the interior of the vehicle 1 may be provided with a motor 50 , a controller 40 and a battery 10 , and the controller 30 is used to control the battery 40 to supply power to the motor 50 .
  • the battery 10 may be provided at the bottom of the vehicle 1 or at the front or rear of the vehicle.
  • the battery 10 can be used for power supply of the vehicle 1 , for example, the battery 10 can be used as the operating power source of the vehicle 1 , for the circuit system of the vehicle 1 , for example, for the starting, navigation and operation power requirements of the vehicle 1 .
  • the battery 10 can not only be used as the operating power source of the vehicle 1 , but also can be used as the driving power source of the vehicle 1 to provide driving power for the vehicle 1 instead or partially instead of fuel or natural gas.
  • the battery may include multiple battery cells, wherein the multiple battery cells may be connected in series or in parallel or in a mixed connection, and a mixed connection refers to a mixture of series and parallel connections.
  • a battery can also be called a battery pack.
  • a plurality of battery cells can be connected in series or in parallel or mixed to form a battery module, and then a plurality of battery modules can be connected in series or in parallel or mixed to form a battery. That is to say, a plurality of battery cells can directly form a battery, or a battery module can be formed first, and then the battery module can be formed into a battery.
  • the box body may include two parts, which are referred to as a first part of the box body 111 and a second part of the box body 112 respectively, and the first part of the box body 111 and the second part of the box body 112 are fastened together.
  • the shapes of the first partial case 111 and the second partial case 112 may be determined according to the combined shape of the plurality of battery cells 20 , and each of the first partial case 111 and the second partial case 112 may have an opening.
  • both the first part of the box 111 and the second part of the box 112 can be hollow rectangular parallelepipeds and each has only one surface that is an open surface, the opening of the first part of the box 111 and the opening of the second part of the box 112
  • the box body 111 and the second part of the box body 112 are fastened together to form a box body with a closed cavity.
  • a plurality of battery cells 20 are connected in parallel or in series or in a mixed connection, and then placed in the box formed by the first part of the box 111 and the second part of the box 112 being fastened together.
  • the battery 10 may also include other structures, which will not be repeated here.
  • the battery 10 may further include a bussing component for realizing electrical connection between the plurality of battery cells 20, such as parallel or series or hybrid.
  • the bus member may realize electrical connection between the battery cells 20 by connecting the electrode terminals of the battery cells 20 .
  • the bus members may be fixed to the electrode terminals of the battery cells 20 by welding. The electrical energy of the plurality of battery cells 20 can be further drawn out through the case through the conductive mechanism.
  • the conducting means may also belong to the bussing member.
  • the number of battery cells 20 can be set to any value.
  • a plurality of battery cells 20 can be connected in series, in parallel or in a mixed manner to achieve larger capacity or power. Since the number of battery cells 20 included in each battery 10 may be large, in order to facilitate installation, the battery cells 20 may be arranged in groups, and each group of battery cells 20 constitutes a battery module.
  • the number of battery cells 20 included in the battery module is not limited, and can be set according to requirements.
  • FIG. 3 is an example of a battery module.
  • the battery may include a plurality of battery modules, and the battery modules may be connected in series, parallel, or mixed.
  • the x direction is the width direction of the battery module
  • the y direction is the length direction of the battery module
  • the z direction is the height direction of the battery module.
  • the battery cell 20 includes one or more electrode assemblies 22 , a casing 211 and a cover plate 212 .
  • the coordinate system shown in FIG. 4 is the same as that in FIG. 3 .
  • the casing 211 and the cover plate 212 form an outer casing or battery case 21 . Both the wall of the case 211 and the cover plate 212 are referred to as the wall of the battery cell 20 .
  • the casing 211 is determined according to the combined shape of one or more electrode assemblies 22.
  • the casing 211 can be a hollow cuboid, a cube or a cylinder, and one surface of the casing 211 has an opening for one or more electrodes.
  • Assembly 22 may be placed within housing 211 .
  • one of the planes of the casing 211 is an opening surface, that is, the plane does not have a wall so that the casing 211 communicates with the inside and the outside.
  • the casing 211 can be a hollow cylinder
  • the end face of the casing 211 is an open face, that is, the end face does not have a wall so that the casing 211 communicates with the inside and the outside.
  • the cover plate 212 covers the opening and is connected with the case 211 to form a closed cavity in which the electrode assembly 22 is placed.
  • the casing 211 is filled with electrolyte, such as electrolyte.
  • the battery cell 20 may further include two electrode terminals 214 , and the two electrode terminals 214 may be disposed on the cover plate 212 .
  • the cover plate 212 is generally in the shape of a flat plate, and two electrode terminals 214 are fixed on the flat surface of the cover plate 212 , and the two electrode terminals 214 are a positive electrode terminal 214a and a negative electrode terminal 214b respectively.
  • Each electrode terminal 214 is correspondingly provided with a connecting member 23, or also referred to as a current collecting member 23, which is located between the cover plate 212 and the electrode assembly 22, and is used to electrically connect the electrode assembly 22 and the electrode terminal 214.
  • each electrode assembly 22 has a first tab 221a and a second tab 222a.
  • the polarities of the first tab 221a and the second tab 222a are opposite.
  • the first tab 221a is a positive tab
  • the second tab 222a is a negative tab.
  • the first tabs 221a of one or more electrode assemblies 22 are connected to one electrode terminal through one connecting member 23
  • the second tabs 212a of one or more electrode assemblies 22 are connected to another electrode terminal through another connecting member 23 .
  • the positive electrode terminal 214 a is connected to the positive electrode tab through one connection member 23
  • the negative electrode terminal 214 b is connected to the negative electrode tab through the other connection member 23 .
  • the electrode assembly 22 may be set in a single or multiple number. As shown in FIG. 4 , four independent electrode assemblies 22 are provided in the battery cell 20 .
  • a pressure relief mechanism 213 may also be provided on the battery cell 20 .
  • the pressure relief mechanism 213 is used to actuate when the internal pressure or temperature of the battery cell 20 reaches a threshold value to relieve the internal pressure or temperature.
  • the pressure relief mechanism 213 may be various possible pressure relief structures, which are not limited in this embodiment of the present application.
  • the pressure relief mechanism 213 may be a temperature-sensitive pressure relief mechanism configured to be able to melt when the internal temperature of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold; and/or the pressure relief mechanism 213 may be a pressure-sensitive pressure relief mechanism, and the pressure-sensitive pressure relief mechanism is configured to be able to rupture when the internal air pressure of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold value.
  • FIG. 5 shows a schematic exploded view of the battery 10 according to the embodiment of the present application.
  • the battery 10 may include: battery cells 20 and fire pipes 30 .
  • the battery cell 20 includes the above-described pressure relief mechanism 213 , which is actuated to relieve the internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold value.
  • the battery 10 may include at least one battery cell 20 .
  • the battery 10 includes 2 ⁇ 9 battery cells 20 as an example.
  • the battery cell 20 may include the above-mentioned pressure relief mechanism 213 .
  • the pressure relief mechanism 213 may be provided at any position of the battery cell 20 . If the battery cell 20 is a rectangular parallelepiped as shown in FIG. 5 , the pressure relief mechanism 213 may be disposed on any wall of the rectangular parallelepiped. For example, the pressure relief mechanism 213 may be disposed on the uppermost wall of each battery cell 20 in FIG. 5 , that is, the pressure relief mechanism 213 and the electrode terminals of the battery cell 20 may be disposed on the same wall.
  • the fire-fighting pipeline 30 is used to contain the fire-fighting medium, and the fire-fighting pipeline 30 is used to discharge the fire-fighting medium when the pressure relief mechanism 213 is actuated; wherein, the fire-fighting pipeline 30 is covered with an isolation layer 31, and the isolation layer 31 is used for blocking gas and fire protection Line 30 contacts to produce condensate.
  • the fire-fighting pipeline 30 discharges the fire-fighting medium, so that the discharge from the pressure-relief mechanism 213 can be cooled to reduce the risk of the discharge; the fire-fighting medium can further pass through the activated
  • the pressure relief mechanism 213 flows into the battery cells 20 , thereby further cooling the battery cells 20 and enhancing the safety of the battery.
  • the fire-fighting medium may also be called a cooling medium or a cooling fluid, and more specifically, may be called a fire-fighting liquid or a fire-fighting gas.
  • the fire fighting medium can be circulated to achieve better temperature regulation.
  • the fire-fighting medium may be water, a mixture of water and glycol, or air, or the like.
  • the fire fighting pipeline 30 may be set in any shape according to practical applications.
  • the shape of the cross section of the fire duct 30 can be set to any shape according to practical applications.
  • the fire fighting pipeline 30 can be set as a flat pipeline as shown in FIG. 5 , or can also be set as other shapes, such as cylindrical pipelines and the like.
  • the embodiment of the present application takes the shape shown in FIG. 5 as an example for description.
  • the above-mentioned fire-fighting pipeline 30 is covered with an isolation layer 31 , and the isolation layer 31 is used to prevent the gas from contacting the fire-fighting pipeline 30 to generate condensate, thereby reducing the effect of the condensate on the battery cells in the battery 10 . body 20, electrical connection areas, and other electrical structures.
  • the battery 10 of the embodiment of the present application may include one or more battery cells 20 , and the battery cell 20 is provided with a pressure relief mechanism 213 , and the pressure relief mechanism 213 can be used when the internal temperature or pressure of the battery cell 20 exceeds a threshold value.
  • the pressure relief mechanism 213 When the pressure relief mechanism 213 is actuated, the fire fighting pipe 30 is arranged above the corresponding pressure relief mechanism 213.
  • the pressure relief mechanism 213 When the pressure relief mechanism 213 is actuated, the fire fighting medium contained in the fire fighting pipe 30 flows out and flows to the battery cell 20.
  • the fire pipeline 30 is covered with an isolation layer 31, and the isolation layer 31 can be used to reduce the possibility of condensate forming on the fire pipeline 30, thereby reducing the condensate. influence and improve the safety of the battery 10 .
  • the material of the isolation layer 31 can also be a thermal insulation material, and its thermal conductivity is small, and the ambient temperature and the temperature of the fire fighting pipeline 30 affect it.
  • the gas with high temperature and high humidity is not easy to form condensate on the surface of the isolation layer 31 .
  • the isolation layer 31 can be made of a non-absorbent material to prevent the isolation layer 31 from absorbing the fire-fighting liquid after the fire-fighting pipeline 30 discharges the fire-fighting liquid, which affects the cooling effect , and also reduces the probability of introducing liquid at the isolation layer 31 , reducing the impact of the liquid on the battery cells 20 and other electrical structures in the battery 10 .
  • the above-mentioned isolation layer 31 can be closed-cell foam, and the cells in the closed-cell foam are closed-cell cells, which have excellent impact resistance, resilience, softness, heat insulation, water resistance, etc. Advantages, it is easy to wrap to the fire pipeline 30.
  • the thickness of the above-mentioned isolation layer 31 may be greater than 1 mm to ensure good thermal insulation performance. And if the isolation layer 31 is a closed-cell foam with a thickness of more than 1 mm, it can play a buffering role when the fire fighting pipe 30 is impacted and collides with other components in the battery 10 .
  • the isolation layer 31 can be not only closed-cell foam, but also other isolation materials with thermal insulation and non-absorbent properties, and its thickness can also be designed according to actual needs.
  • the specific type and thickness of 31 are not limited.
  • FIG. 6 shows a schematic structural diagram of another battery 10 in the embodiment of the present application.
  • the battery 10 further includes a bus component 12 , and the bus component 12 includes a bus unit 121 and a bus connection port 122 .
  • the bus component 12 includes a plurality of bus units 121, the multiple bus units 121 are used to realize the electrical connection of the plurality of battery cells 20 in the battery 10, and each bus unit 121 of the multiple bus units 121 is used for To realize the electrical connection of the adjacent battery cells 20 , specifically, each bus unit 121 can realize the electrical connection of the battery cells 20 by connecting the electrode terminals of the adjacent battery cells 20 .
  • bus component 12 further includes a plurality of bus connection ports 122 for outputting the electrical energy of the plurality of battery cells 20 in the battery 10 .
  • the plurality of bus connection ports 122 are at least one group of bus connection ports 122, and each group of bus connection ports 122 includes a positive connection port and a negative connection port for outputting
  • a group of battery cells 20 corresponding to the group of bus connection ports 122 may be referred to as a battery cell group.
  • the battery 10 may include one or more battery cell groups, that is, one or more groups of bus connection ports 122 correspondingly. If the battery 10 includes a plurality of battery cell groups, the plurality of groups of bus connection ports 122 are connected to each other through electrical connectors to form power output ports of the battery 10 .
  • the battery 10 includes two bus connection ports 122 , that is, a group of bus connection ports 122 , and the plurality of battery cells 20 in the battery 10 are one battery cell Group.
  • the two bus connection ports 122 may be located on the same side of a battery cell group. Further, in the group of bus connection ports 122 , the positive connection port and the negative electrode connection port may be arranged adjacent to each other for outputting the electric energy of the one battery cell group.
  • the fire fighting pipeline 30 is covered with an isolation layer 31 in the area corresponding to the above-mentioned confluence connection port 122, so as to reduce the probability of condensate forming in the area corresponding to the confluence connection port 122, so as to reduce or even prevent the condensate from forming on the area corresponding to the confluence connection port 122.
  • the bus connection port 122 affects electrical performance.
  • the isolation layer 31 can also be used to prevent the fire-fighting pipeline 30 from overlapping with the electrical connector connected to the bus connection port 122 , resulting in a short-circuit ignition problem, so as to further improve the safety of the battery 10 .
  • bus connection port 122 is used to output the electrical energy of the plurality of battery cells 20 in the battery 10. If condensate is formed on the bus connection port 122, on the one hand, it will affect the power transmission of the bus connection port 122, and on the other hand. On the one hand, the condensate is also likely to cause corrosion to the metal bus connection port 122 and the electrical connection between the bus connection port 122 , which further affects the electrical performance of the bus connection port 122 .
  • the condensate will cause a short circuit between the two bus connection ports 122, and in a plurality of A large current is generated in the battery cells 20, and a large amount of heat is generated at the same time, which causes damage to the battery cells 20 and even explosion, resulting in safety incidents.
  • the pressure relief mechanism 213 and the electrode terminal 214 are both located on the first wall of the battery cell 20 .
  • the walls are located on the same plane, and for the convenience of description, the surface where the first walls of the plurality of battery cells 20 are hereinafter referred to as the first surface of the plurality of battery cells 20 .
  • the bus unit 121 for connecting the electrode terminals of the plurality of battery cells 20 may be located in the first Further, the bus connection port 122 may be located at the edge of the first surface, for example, on one side of the first surface, and in order to facilitate the connection with the electrical connector, the bus connection port 122 may be formed as a bent structure, including A first plate on the first side and a second plate perpendicular to the first plate.
  • the fire fighting pipe 30 can be arranged above the confluence component 12, that is, above the first surface.
  • the fire fighting medium in the fire fighting medium can be under the action of gravity. It is discharged down to cool down the discharge of the pressure relief mechanism 213 .
  • the area corresponding to the confluence connection port 122 in the fire fighting pipeline 30 includes but is not limited to the area located above the certain side in the fire fighting pipeline 30, The distance between the area corresponding to the confluence connection port 122 in the fire fighting pipeline 30 and the confluence connection port 122 is relatively short.
  • FIG. 7 shows a schematic structural diagram of another battery 10 in the embodiment of the present application.
  • the battery 10 further includes a sensing component 15 , and the sensing component 15 includes a sensing unit 151 , a transmission line 152 and a sensing port 153 .
  • the plurality of sensing units 151 are used for sensing the states of the plurality of battery cells 20 .
  • the sensing units 151 include but are not limited to being used for sensing the temperature, voltage, current, etc. of the plurality of battery cells 20 .
  • the state signals of the plurality of battery cells 20 sensed by the sensing unit 151 are transmitted through at least one transmission line 152, and the transmission line 152 may be, for example, an electrical signal transmission line or a circuit board, wherein the circuit board includes but is not limited to It is a flexible printed circuit (FPC), which is thin and easy to install.
  • One end of the transmission line 152 is provided with a sensing port 153 , and the sensing port 153 is used to output the status signal transmitted in the transmission line 152 .
  • the fire fighting pipeline 30 is covered with an isolation layer 31 in the area corresponding to the above-mentioned sensing port 153 .
  • the transmission line 152 is located above the first surface where the pressure relief mechanisms 213 of the plurality of battery cells 20 are located. Similar to the connection port 122, the sensing port 153 is disposed adjacent to one side of the first face.
  • the area corresponding to the sensing port 153 in the fire fighting pipeline 30 includes, but is not limited to, the area located above the certain side in the fire fighting pipeline 30 .
  • the distance between the area corresponding to the sensing port 153 in the fire fighting pipeline 30 and the sensing port 153 is relatively short.
  • the distance between the area corresponding to the sensing port 153 in the fire fighting pipeline 30 and the sensing port 153 is relatively short, if condensate is formed in the corresponding area, it is easy to drip onto the confluence connection port 122 and affect the sensing port 153 Transmission of status signals of a plurality of battery cells 20 . Therefore, it is necessary to coat the isolation layer 31 in the corresponding area to reduce the probability of forming condensate.
  • the sensing port 153 in the sensing component 15 described above is located on the same side of the plurality of battery cells 20 as the bus connecting port 122 in the bus component 12 .
  • the sensing port 153 in the sensing member 15 and the bus connecting port 122 in the bus member 12 are disposed close to the same side of the first face.
  • the area corresponding to the confluence connection port 122 of the fire fighting pipeline 30 and the area corresponding to the sensing port 153 of the fire fighting pipeline 30 may be the same or similar areas.
  • the fire fighting pipeline 30 does not need to be in the area corresponding to the sensing port 153 .
  • the isolation layer 31 is covered in a plurality of different areas, and the isolation layer 31 only needs to be covered in the same area, which can reduce or even prevent the condensate from affecting the bus connection port 122 and the sensing port 153. Under the premise, the usage of the isolation layer 31 can be reduced, which can not only reduce the cost, but also relatively increase the area of the fire pipeline 30 that is not covered with the isolation layer 31, so that the fire pipeline 30 can play a better temperature regulation role.
  • the battery 10 further includes an insulating medium layer disposed between the above-mentioned fire-fighting pipe 30 and the battery cells 20 .
  • the exhaust discharged through the pressure relief mechanism 213 can quickly melt the corresponding position of the insulating medium layer covering the pressure relief mechanism 213 to discharge the battery.
  • the insulating medium layer in the embodiment of the present application is used for the insulation between the wall where the pressure relief mechanism 213 of the battery cell 20 is located and the fire duct 30 .
  • a plurality of battery cells 20 may be provided in the battery 10 , for setting In the case of a large number of battery cells 20 , the plurality of battery cells 20 may correspond to a larger area of the insulating medium layer, which facilitates its installation in the battery 10 .
  • the battery 10 may include two insulating medium layers for covering the bus unit 121 in the bus unit 12 and/or the sensing unit 151 and the sensing line 152 in the sensing unit 15 up and down, leaving only the Outgoing bus connection port 122 and sensing port 153 .
  • the area corresponding to the insulating medium layer of the fire-fighting pipeline 30 may not be covered with the isolation layer 31. Even if the fire-fighting pipeline 30 forms condensate on this area, the insulating medium layer can also be used to coat the condensate with the confluence unit. 121 and/or the sensing unit 151 and the sensing circuit 152 are insulated and isolated, and further, the insulating medium layer can also be used for insulating and isolating the condensate from the battery cells 20 .
  • the structure formed after covering the bus unit 121, the sensing unit 151 and the sensing line 152 with an insulating medium layer is referred to as a transmission assembly.
  • FIG. 8 shows a schematic structural diagram of a transmission assembly 16 , the transmission assembly 16 is disposed between the fire fighting pipeline 30 and the battery cells 20 , and the transmission assembly 16 corresponds to 2 ⁇ 9 battery cells 20.
  • both the bus connection port 122 in the bus component 12 and the sensing port 153 in the sensing component 15 are located on the same side of the insulating medium layer 161 .
  • the two sensing ports 153 are located on two sides of the two bus connection ports 122 respectively.
  • the converging unit 121 in the converging part 12 and the sensing unit 151 and the sensing line 152 in the sensing part 15 are covered by the insulating medium layer 161 to form the transmission assembly 16, and the fire fighting pipeline 30 is insulated
  • the area corresponding to the medium layer 161 may not be covered with the isolation layer 31 , but the area corresponding to the confluence connection port 122 and the sensing port 153 may be covered with the isolation layer 31 , so that the fire pipeline 30 has only a small area covered with the isolation layer 31 , is used to reduce or even prevent the condensate from affecting the confluence connection port 122 and the sensing port 153 , while other larger areas are not covered with the isolation layer 31 , so that the fire fighting pipeline 30 has a better cooling effect. Therefore, through the solutions of the embodiments of the present application, the safety performance of the battery 10 can be further enhanced.
  • the above-mentioned transmission component 16 may also include other structural components such as the bracket of the fire pipeline 30 , which are transmitted in the embodiment of the present application.
  • the specific structure of the assembly 16 is not limited.
  • sensing port 153 in the sensing component 15 and the bus connecting port 122 in the bus component 12 are shown located in the plurality of battery cells 20 .
  • the sensing port 153 in the sensing component 15 and the bus connecting port 122 in the bus component 12 may also be located on different sides of the plurality of battery cells 20, for example, the bus connection port 122 in the bus component 12
  • the bus connection port 122 is located on the first side of the above-mentioned first face
  • the sensing port 153 in the sensing member 15 is located on the second side of the above-mentioned first face, which is opposite to the first side.
  • the embodiments of the present application do not specifically limit the specific positions of the sensing port 153 and the confluence connection port 122 .
  • FIG. 9 shows a schematic three-dimensional structure diagram of a fire fighting pipeline 30 provided in an embodiment of the present application.
  • FIG. 10 shows a top view of the fire duct 30 of FIG. 9 .
  • the fire duct 30 includes a plurality of first parts 301 and at least one second part 302, and the plurality of first parts 301 are arranged parallel to each other and along the stacking direction of the plurality of battery cells 20 (y shown in the figure). direction), each second portion 302 of the at least one second portion 302 connects the ends of two adjacent first portions of the plurality of first portions 301 .
  • the plurality of first portions 301 may be approximately parallel, and two first portions 301 of the plurality of first portions 301 may have a slight included angle, for example, the included angle may be within 5 degrees.
  • the first part 301 of the fire fighting pipeline 30 can be a straight pipeline
  • the second part 302 can be a U-shaped pipeline, a straight pipeline, or a pipeline of other shapes.
  • the second part 302 The middle part of the pipe is a straight pipe, and the two ends of the straight pipe are connected with an arc angle pipe, and the arc angle pipe is used to connect the first part 301 .
  • the first part 301 and the second part 302 may also be pipes communicating with each other in other shapes, which are not specifically limited in this embodiment of the present application.
  • the fire fighting duct 30 includes three first parts 301 and two second parts 302 .
  • the fire duct 30 formed by the three first parts 301 and the two second parts 302 can be approximated as an S-shaped duct.
  • a fire fighting medium inlet 303 and a fire fighting medium outlet 304 are further included, and the fire fighting medium inlet 303 and the fire fighting medium outlet 304 are respectively connected to the two first parts 301 .
  • the dotted frame area shown next to the fire-fighting medium inlet 303 and fire-fighting medium outlet 304 in the figure is the connection area between the fire-fighting medium inlet 303 and the fire-fighting medium outlet 304 and the end of the first part 301 .
  • the fire fighting medium inlet 303 and the fire fighting medium outlet 304 may be connected to an inlet valve and an outlet valve, respectively.
  • the inlet valve is used for filling fire-fighting medium into the fire-fighting pipeline 30
  • the outlet valve is used for discharging the fire-fighting medium to the outside.
  • the positions of the valves can be set according to practical applications, for example, the inlet valve and the outlet valve are respectively arranged on two opposite sides of the battery 10 .
  • the inlet valves of the multiple sets of valves may be arranged on the same side, and the outlet valves of the multiple sets of valves may be arranged on the same opposite side, but the embodiment of the present application is not limited to this. .
  • FIG. 11 shows a schematic structural diagram of the battery 10 after the fire-fighting pipes 30 in the above-mentioned FIGS. 9 and 10 are assembled with a plurality of battery cells 20 .
  • FIG. 12 is a schematic top view of the battery 10 in FIG. 11 .
  • the battery 10 includes 6 ⁇ 18 battery cells 20 , and in the stacking direction, 1 ⁇ 18 battery cells 20 are referred to as a row of battery cells 20 .
  • two fire-fighting pipes 30 are disposed above the plurality of battery cells 20 , and in each fire-fighting pipe 30 , three first parts 301 are located above three adjacent rows of battery cells 20 in a one-to-one correspondence.
  • the two second parts 302 are respectively connected to the ends of the two adjacent first parts 301 .
  • the plurality of first parts 301 in the fire fighting pipeline 30 are arranged above the plurality of pressure relief mechanisms of the plurality of battery cells 20 , that is, the fire protection
  • the plurality of first portions 301 in the conduit 30 may be disposed on a side of the plurality of pressure relief mechanisms away from the interior of the plurality of battery cells 20 .
  • the length of the first portion 301 may be equivalent to the length of a row of battery cells 20 , for example, the length of the first portion 301 is greater than that of a row of battery cells 20 .
  • the length of the connection line of the pressure relief structure 213 is less than or equal to the length of a row of battery cells 20 .
  • the ends of the first portion 301 are located above both sides of a row of battery cells 20 . Further, the ends of the first part 301 are located above the centers of both sides of the row of battery cells 20 .
  • the second part 302 is used to connect the ends of the two first parts 301 , the second part 302 can also be considered to be located on both sides of the two rows of battery cells 20 correspondingly.
  • the above-mentioned two fire-fighting pipes 30 may be arranged above the plurality of battery cells 20 in any arrangement.
  • two fire fighting pipes 30 are arranged in a mirror image above the plurality of battery cells 20 .
  • the two fire-fighting pipes 30 may also be arranged in other manners such as an array, which is not specifically limited in this embodiment of the present application.
  • the battery 10 includes six rows of battery cells 20 , and one fire duct 30 corresponds to three rows of battery cells 20 for illustration, and one fire duct 30 may also correspond to two The battery cells 20 in one row, four rows, or more than four rows are not specifically limited in this embodiment of the present application.
  • the battery 10 is not limited to including two fire-fighting pipes 30 , it may include only one fire-fighting pipe 30 , or three or more fire-fighting pipes 30 , which are not specifically described in the embodiments of the present application. limited.
  • the battery 10 further includes a sensing component 15 . If the battery 10 includes multiple rows of battery cells 20 , each row of the battery cells 20 is provided with a corresponding sensing line 152 , and the multiple sensing ports 153 at the ends of the multiple sensing lines 152 are set on the aforementioned multiple first portions 301 the corresponding area at the end of .
  • the battery 10 further includes a bus component 12 .
  • the battery 10 includes multiple rows of battery cells 20, each row or multiple rows of battery cells 20 forms a battery module, and a bus component 12 is correspondingly provided, and the bus connection port 122 of the bus component 12 is disposed at the One side of the sensing port 153 of the sensing part 15 .
  • the insulating medium layer 161 covers the bus unit 121 in the bus part 12 and the sensing unit 151 and the sensing line 152 in the sensing part 15 to form the transmission assembly 16 .
  • Both the bus connection port 122 in the bus part 12 and the sensing port 153 in the sensing part 15 are located on the same side of the insulating medium layer 161 .
  • the area of the insulating medium layer 161 may be equal to or similar to the area of the plane where the first walls of the plurality of battery cells 20 in the battery 10 are located.
  • FIG. 13 shows a schematic structural diagram of the transmission assembly 16 and the fire fighting pipeline 30 .
  • the transmission assembly 16 can be correspondingly disposed between the 6 ⁇ 18 battery cells 20 in FIG. 11 (not shown in FIG. 13 ) and the two fire fighting pipes 30 .
  • six sensing ports 153 and six bus connection ports 122 are provided on one edge of the insulating medium layer 161 .
  • the first part 301 in the fire fighting pipe 30 may be located above the sensing line 152 (not shown in the figure) in the sensing component 15 , and the second part 302 is located at the edges of both sides of the insulating medium layer 161 Two adjacent first parts 301 are connected.
  • FIG. 14 and FIG. 15 show two partially enlarged structural schematic views of the battery 10 .
  • two first parts 301 are disposed above the two rows of battery cells 20 , and a second part 302 is connected between the ends of the two first parts 301 .
  • one end of each of the first parts 301 is located above one side edge of a row of battery cells 20 .
  • a sensing port 153 of the sensing component 15 is also provided on one side edge of a row of battery cells 20 , and the sensing port 153 is disposed close to the bottom of the end of the first part 301 , in order to reduce the pressure of the first part 301 .
  • an isolation layer 31 may be provided around the end of the first portion 301 .
  • At least a partial area of the second portion 302 connecting the ends of the first portion 301 coats the isolation layer 31 .
  • At least part of the second part 302 connecting the ends of the two first parts 301 covers the isolation layer 31 , and the second part 302 is located in the battery cell 20 where the sensing port 153 is located. If condensate is formed on one side edge of the sensor port 153 , it is easy to affect the sensing port 153 .
  • the fire-fighting medium inlet 303 or the fire-fighting medium outlet 304 of the fire-fighting pipeline 30 is connected with the first part 301, and the connection area between the fire-fighting medium inlet 303 or the fire-fighting medium outlet 304 and the first part 301 is covered with isolation layer 31 .
  • two first parts 301 are provided above the two rows of battery cells 20 , and one of the first parts 301 is connected to the fire protection medium outlet 304 (or the fire protection medium inlet 303 ) of the fire fighting pipe 30 , and the other is connected to the first part 301 .
  • the end of one part 301 is connected to the second part 302 .
  • the sensing ports 153 are disposed proximate below the end of the first portion 301 , with one sensing port 153 proximate the fire-fighting medium outlet 304 and the other sensing port 153 proximate the second Section 302.
  • the connection area between the first part 301 and the fire-fighting medium inlet 303 or fire-fighting medium outlet 304 (Fig.
  • the spacer 31 is covered with the isolation layer 31, and at least a part of the second part 302 is covered with the isolation layer 31, so as to reduce or even prevent the formation of condensate from affecting the sensing port 153.
  • bus connection port 122 of the bus element 12 is disposed on one side of the sensing port 153 of the sensing element 15 .
  • a sensing port 153 is provided in the middle region of the end of the battery cell 20 , and a bus connection port 122 is provided on one side of the sensing port 153 .
  • the sense port 153 and the bus connection port 122 are disposed on the same side edge of a row of battery cells 20 .
  • the bus connection port 122 is provided obliquely below the end of the first portion 301 .
  • an isolation layer 31 may be provided around the end of the first portion 301 .
  • the distance between the confluence connection port 122 and the end of the first part 301 is slightly farther than the distance between the transmission interface 153 and the end of the first part 301. If the fire pipe 30 is covered with The isolation layer 31 can reduce the influence of the formation of condensate on the transmission interface 153, and also can reduce the influence of the formation of the condensate on the confluence connection port 122.
  • At least part of the area of the second part 302 connecting the ends of the first part 301 is covered with the isolation layer 31 to reduce the impact of the condensate formed on the second part 302 on the transmission interface 153 .
  • the influence of the condensate on the confluence connection port 122 can also be reduced.
  • the fire-fighting medium inlet 303 or the fire-fighting medium outlet 304 of the fire-fighting pipeline 30 is connected with the first part 301 , and the connection area between the fire-fighting medium inlet 303 or the fire-fighting medium outlet 304 and the first part 301 is covered with an isolation layer 31 to reduce the connection While the condensate formed on the area affects the transmission interface 153 , the condensate can also reduce the effect of the condensate on the confluence connection port 122 .
  • the portion of the straight pipe in the second portion 302 is coated with the isolation layer 31 , while the connecting portion connected to the first portion 302 in the second portion 302 is not coated isolation layer 31 .
  • the first part 301 may not cover the isolation layer 31 , and the connection parts in the first part 301 and/or the second part 302 of the uncoated isolation layer 31 may be used to The battery cells 20 regulate temperature.
  • the straight pipe portion in the second portion 302 and the connecting portion connected to the first portion 302 both coat the isolation layer 31 .
  • the end of the first part 301 of the fire fighting pipe 30 and other regions in the vicinity thereof can also be coated with the isolation layer 31 to further reduce the probability of forming condensate.
  • the orthographic projection of the region covered with the isolation layer 31 in the second portion 302 in the first plane at least partially overlaps with the orthographic projection of the plurality of battery cells 20 in the first plane, wherein the first plane is A plane perpendicular to the height direction of the plurality of battery cells 20 .
  • the orthographic projection of the region covered with the isolation layer 31 in the connection region of the fire-fighting medium inlet 303 and/or the fire-fighting medium outlet 304 and the first part 301 in the first plane is the same as that of the plurality of battery cells 20 in the first plane.
  • the orthographic projections in the plane overlap at least partially.
  • the first plane may be the plane where the first surfaces of the plurality of battery cells 20 are located, and the orthographic projection of the plurality of battery cells 20 on the first plane is the plurality of battery cells 20 the first side.
  • the first plane may also be a plane parallel to the first surfaces of the plurality of battery cells 20, and the orthographic projection of the plurality of battery cells 20 on the first plane is a plurality of battery cells Orthographic projection of the first face of 20 in the first plane.
  • FIG. 16 shows a schematic top view of a battery 10 .
  • the orthographic projection of the area covered with the isolation layer 31 in the second part 302 on the first surface of the plurality of battery cells 20 (a part of the black area shown in the figure) and the plurality of battery cells 20 The first sides of the at least partially overlap.
  • the orthographic projection of the area covered with the isolation layer 31 in the connection area between the fire-fighting medium inlet 303 and the fire-fighting medium outlet 304 and the first part 301 on the first surface of the plurality of battery cells 20 (the other part shown in the figure is black area) at least partially overlaps the first faces of the plurality of battery cells 20 .
  • the orthographic projection on the first plane of the area covered with the isolation layer 31 in the second part 302 may be different from the multiple Orthographic projections of the battery cells 20 in the first plane may also not overlap each other.
  • the orthographic projection of the other areas covered with the isolation layer 31 in the fire duct 30 in the first plane is the same as that of the plurality of battery cells 20 in the first plane.
  • Orthographic projections in the plane may also be non-overlapping.
  • the orthographic projection of the region covered with the isolation layer 31 in the connection region of the fire-fighting medium inlet 303 and the fire-fighting medium outlet 304 and the first part 301 in the first plane is the orthographic projection of the plurality of battery cells 20 in the first plane.
  • the projections also do not overlap each other.
  • the orthographic projection of the region in the fire duct 30 all covered with the isolation layer 31 in the first plane does not overlap with the orthographic projection of the plurality of battery cells 20 in the first plane.
  • the fire fighting pipeline 30 can be closely arranged above the plurality of battery cells 20 to reduce the distance between the fire fighting pipeline 30 and the plurality of battery cells 20, thereby improving the effect of the fire fighting pipeline 30 on the plurality of batteries. Temperature regulating effect of the monomer 20 . At the same time, the space occupied by the fire fighting pipe 30 in the height direction of the battery 10 is reduced, and the energy density of the battery 10 is improved.
  • An embodiment of the present application further provides an electrical device, and the electrical device may include the battery 10 in the foregoing embodiments.
  • the electrical device may be a vehicle 1, a ship or a spacecraft.
  • FIG. 17 shows a schematic flowchart of a method 300 for preparing a battery according to an embodiment of the present application. As shown in Figure 17, the method 300 may include:
  • the battery cell 20 comprising a pressure relief mechanism 213, the pressure relief mechanism 213 being actuated to release the internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold;
  • the fire fighting pipeline 30 accommodates the fire fighting medium
  • the fire fighting pipeline 30 is used to discharge the fire fighting medium when the pressure relief mechanism 213 is actuated, wherein the fire fighting pipeline 30 is covered with an isolation layer 31, the isolation layer 31 is used for Condensate is generated when the barrier gas contacts the fire fighting pipeline 30 .
  • FIG. 18 shows a schematic block diagram of an apparatus 400 for preparing a battery according to an embodiment of the present application.
  • the apparatus 400 for preparing a battery may include a providing module 410 and an installation module 420 .
  • the providing module 410 is used to: provide the battery cell 20, the battery cell 20 includes a pressure relief mechanism 213, and the pressure relief mechanism 213 is actuated to relieve the internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold value;
  • a fire-fighting pipe 30 is provided, the fire-fighting pipe 30 contains a fire-fighting medium, and the fire-fighting pipe 30 is used to discharge the fire-fighting medium when the pressure relief mechanism 213 is actuated, wherein the fire-fighting pipe 30 is coated with an isolation layer 31 for blocking Contact of the gas with the fire piping 30 produces condensate.

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Abstract

一种电池、用电装置、制备电池的方法和装置，能够增强电池的安全性。电池包括：电池单体，包括泄压机构，泄压机构用于电池单体的内部压力或温度达到阈值时致动以泄放内部压力；消防管道，用于容纳消防介质，消防管道用于在泄压机构致动时排出消防介质；其中，消防管道包覆有隔离层，隔离层用于阻隔气体与消防管道接触产生冷凝液。本申请实施例提供的电池中，电池单体设置有泄压机构，在泄压机构致动时，其排放物可以破坏消防管道，使得消防管道内的消防介质流出并流向电池单体，以对电池单体进行降温；同时，消防管道包覆有隔离层，隔离层可以用于降低在消防管道上形成冷凝液的概率，从而减小乃至防止冷凝液对电池造成影响，提升电池的安全性。

Description

电池、用电装置、制备电池的方法和装置 技术领域
本申请实施例涉及电池领域，并且更具体地，涉及一种电池、用电装置、制备电池的方法和装置。
背景技术
节能减排是汽车产业可持续发展的关键。在这种情况下，电动车辆由于其节能环保的优势成为汽车产业可持续发展的重要组成部分。而对于电动车辆而言，电池技术又是关乎其发展的一项重要因素。
在电池技术的发展中，除了提高电池的性能外，安全问题也是一个不可忽视的问题。如果电池的安全问题不能保证，那该电池就无法使用。因此，如何增强电池的安全性，是电池技术中一个亟待解决的技术问题。
发明内容
本申请实施例提供一种电池、用电装置、制备电池的方法和装置，能够增强电池的安全性。
第一方面，提供一种电池，该电池包括：电池单体，包括泄压机构，该泄压机构用于该电池单体的内部压力或温度达到阈值时致动以泄放该内部压力；消防管道，用于容纳消防介质，该消防管道用于在该泄压机构致动时排出该消防介质；其中，该消防管道包覆有隔离层，该隔离层用于阻隔气体与该消防管道接触产生冷凝液。
本申请实施例提供的电池中，可以包括一个或者多个电池单体，该电池单体设置有泄压机构，该泄压机构可以在电池单体内部温度或者压力超过阈值时致动，以泄放内部压力；在与泄压机构对应的上方设置有消防管道，在泄压机构致动时，泄压机构排除的排放物可以破坏该消防管道，以使得消防管道内容纳的消防介质流出并流向电池单体，以对电池单体进行降温；同时，该消防管道包覆有隔离层，该隔离层可以用于降低在消防管道上形成冷凝液的概率，从而减小乃至防止冷凝液对电池造成影响，提升电池的安全性。
在一些实施例中，该电池还包括：汇流部件，包括汇流单元以及汇流连接端口；该汇流单元用于实现该多个电池单体的电连接，该汇流连接端口用于输出该多个电池单体的电能；该消防管道在该汇流连接端口对应的区域包覆有该隔离层。
在本申请实施例中，消防管道在汇流连接端口对应的区域包覆有隔离层，以降低冷凝液形成于汇流连接端口对应的区域的概率，减小乃至防止该冷凝液对汇流连接端口造成电气性能的影响，此外，隔离层还能用于防止消防管道与连接至汇流连接端口的电连接件发生搭接，造成短路打火问题，以提升电池的安全性。
在一些实施例中，该电池还包括：传感部件，包括传感单元、传输线路以及传感端口；该传感单元用于感测该多个电池单体的状态，该传感端口用于通过该传输线路输出该多个电池单体的状态信号；该消防管道在该传感端口对应的区域包覆有该隔离层。
在本申请实施例中，消防管道在传感端口对应的区域包覆有隔离层，以降低冷凝液 形成于传感端口对应的区域的概率，减小乃至防止该冷凝液对传感端口造成电气性能的影响，提升电池的安全性。
在一些实施例中，该汇流连接端口和该传感部件的传感端口位于该多个电池单体的同一侧。
在本申请实施例中，消防管道在该汇流连接端口对应的区域与消防管道在该传感端口对应的区域可以为相同或者相近的区域。因此，相比于消防管道在汇流连接端口对应的区域与消防管道在该传感端口对应的区域为不同区域的情况，采用本申请实施例的技术方案，消防管道不需在多个不同区域包覆隔离层，而仅需在同一区域包覆隔离层，即可减小乃至防止冷凝液对汇流连接端口和传感端口造成影响，在保证电池安全性能的前提下，可以减少隔离层的使用量，既能降低成本也能让消防管道起到更好的冷却降温作用。
在一些实施例中，该消防管道包括多个第一部分和至少一个第二部分，该多个第一部分相互平行设置，且沿该多个电池单体的堆叠方向延伸，该至少一个第二部分中每个第二部分连接该多个第一部分中相邻的两个第一部分的端部；其中，该多个第一部分设置于该多个电池单体的该多个泄压机构的远离该多个电池单体内部的一侧。
在一些实施例中，该电池的传感部件的传感端口设置于该多个第一部分的端部的对应区域。
在一些实施例中，该汇流部件的汇流连接端口设置于该电池的传感部件的传感端口的一侧。
在一些实施例中，该第二部分中的至少部分区域包覆该隔离层。
在本申请实施例中，在连接第一部分端部的第二部分中的至少部分区域均包覆隔离层，减小乃至防止第二部分上形成的冷凝液对传输接口和/或汇流连接端口造成影响。
在一些实施例中，该第二部分中包覆有该隔离层的区域在第一平面中的正投影与该多个电池单体在该第一平面中的正投影互不重叠，其中，该第一平面为垂直于该多个电池单体的高度方向的平面。
在本申请实施例中，可以将消防管道紧密设置于多个电池单体上方，减小消防管道与多个电池单体之间的距离，从而提高消防管道对多个电池单体的降温冷却效果。
在一些实施例中，该消防管道的消防介质入口或消防介质出口连接有该第一部分，该第一部分与该消防介质入口或该消防介质出口的连接区域包覆该隔离层。
在本申请实施例中，在连接第一部分端部的消防介质入口或消防介质出口包覆隔离层，减小乃至防止消防介质入口或消防介质出口上形成的冷凝液对传输接口和/或汇流连接端口造成影响。
在一些实施例中，该第一部分不包覆该隔离层，该第一部分用于对该多个电池单体进行冷却。
在本申请实施例中，第一部分不包覆隔离层，该不包覆隔离层的第一部分，可以用于对电池单体的冷却降温。
在一些实施例中，该隔离层为不吸水材质。
在本申请实施例中，若消防管道中的消防介质为消防液，该隔离层为不吸水材质，防止消防管道在排出消防液后，隔离层吸收该消防液，影响冷却降温效果，也降低在隔 离层处引入液体的概率，减小液体对电池单体的以及电池中的其它电气结构造成影响。
在一些实施例中，该隔离层为闭孔泡棉，该闭孔泡棉中的孔泡均为密闭孔泡。
在本申请实施例中，隔离层为闭孔泡棉，该闭孔泡棉中的孔泡均为密闭孔泡，其具有优良的抗冲击性，反弹性，柔软性，隔热性，防水性，防汽性等优点，便于包覆至消防管道。
在一些实施例中，该隔离层用于隔离该消防管道与该汇流部件。
在一些实施例中，电池还包括：绝缘介质层，设置于该消防管道与该电池单体之间。
在一些实施例中，该隔离层的厚度大于1mm。
在本申请实施例中，隔离层的厚度大于1mm，以保证良好的隔热保温性能。且若隔离层为厚度大于1mm的闭孔泡棉，当消防管道受到冲击与电池中的其它部件发生碰撞时，可以起到缓冲作用。
第二方面，提供一种用电装置，包括：第一方面或者第一方面中任意一个实施例所述的电池。
在一些实施例中，该用电装置为车辆、船舶或航天器。
第三方面，提供了一种制备电池的方法，包括：提供电池单体，该电池单体包括泄压机构，该泄压机构用于该电池单体的内部压力或温度达到阈值时致动以泄放该内部压力；提供消防管道，该消防管道容纳消防介质，该消防管道用于在该泄压机构致动时排出该消防介质，其中，该消防管道包覆有隔离层，该隔离层用于阻隔气体与该消防管道接触产生冷凝液。
在一些实施例中，该方法还包括：提供汇流部件，该汇流部件包括汇流单元以及汇流连接端口；该汇流单元用于实现多个电池单体的电连接，该汇流连接端口用于输出该多个电池单体的电能；该消防管道在该汇流连接端口对应的区域包覆有该隔离层。
在一些实施例中，该方法还包括：提供传感部件，该传感部件包括传感单元、传输线路以及传感端口；该传感单元用于感测该多个电池单体的状态，该传感端口用于通过该传输线路输出该多个电池单体的状态信号；该消防管道在该传感端口对应的区域包覆有该隔离层。
在一些实施例中，该消防管道中包覆有该隔离层的区域在第一平面中的正投影与该多个电池单体在该第一平面中的正投影互不重叠，其中，该第一平面为垂直于该多个电池单体的高度方向的平面。
在一些实施例中，该隔离层为不吸水材质。
第四方面，提供了一种制备电池的装置，包括执行上述第三方面的方法的模块。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1为本申请一个实施例的车辆的示意图；
图2为本申请一个实施例的电池的结构示意图；
图3为本申请一个实施例的电池模块的结构示意图；
图4为本申请一个实施例的电池单体的分解图；
图5为本申请一个实施例的电池的示意性分解图；
图6为本申请另一个实施例的电池的示意性分解图；
图7为本申请另一个实施例的电池的示意性分解图；
图8为本申请另一个实施例的电池的示意性分解图；
图9为本申请另一个实施例的消防管道的结构示意图；
图10为图9中消防管道的示意性俯视图；
图11为本申请另一个实施例的电池的示意性分解图；
图12为图11中消防管道的示意性俯视图；
图13为本申请另一个实施例的电池的示意性分解图；
图14为本申请一个实施例的电池的局部放大的结构示意图；
图15为本申请另一个实施例的电池的局部放大的结构示意图；
图16为本申请一个实施例的电池的示意性俯视图；
图17为本申请一个实施例的制备电池的方法的示意性流程图；
图18为本申请一个实施例的制备电池的装置的示意性框图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本申请中在申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。本申请的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序或主次关系。
在本申请中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本申请所描述的实施例可以与其它实施例相结合。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“附接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请的实施例中，相同的附图标记表示相同的部件，并且为了简洁，在不同实 施例中，省略对相同部件的详细说明。应理解，附图示出的本申请实施例中的各种部件的厚度、长宽等尺寸，以及集成装置的整体厚度、长宽等尺寸仅为示例性说明，而不应对本申请构成任何限定。
本申请中出现的“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
本申请中，电池单体可以包括锂离子二次电池、锂离子一次电池、锂硫电池、钠锂离子电池、钠离子电池或镁离子电池等，本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体一般按封装的方式分成三种：柱形电池单体、方体方形电池单体和软包电池单体，本申请实施例对此也不限定。
本申请的实施例所提到的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。例如，本申请中所提到的电池可以包括电池模块或电池包等。电池一般包括用于封装一个或多个电池单体的箱体。箱体可以避免液体或其他异物影响电池单体的充电或放电。
电池单体包括电极组件和电解液，电极组件由正极片、负极片和隔离膜组成。电池单体主要依靠金属离子在正极片和负极片之间移动来工作。正极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的集流体凸出于已涂覆正极活性物质层的集流体，未涂敷正极活性物质层的集流体作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的集流体凸出于已涂覆负极活性物质层的集流体，未涂敷负极活性物质层的集流体作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。为了保证通过大电流而不发生熔断，正极极耳的数量为多个且层叠在一起，负极极耳的数量为多个且层叠在一起。隔膜的材质可以为PP或PE等。此外，电极组件可以是卷绕式结构，也可以是叠片式结构，本申请实施例并不限于此。电池技术的发展要同时考虑多方面的设计因素，例如，能量密度、循环寿命、放电容量、充放电倍率等性能参数，另外，还需要考虑电池的安全性。
对于电池单体来说，主要的安全危险来自于充电和放电过程，同时还有适宜的环境温度设计，为了有效地避免不必要的损失，对电池单体一般会有至少三重保护措施。具体而言，保护措施至少包括开关元件、选择适当的隔离膜材料以及泄压机构。开关元件是指电池单体内的温度或者电阻达到一定阈值时而能够使电池停止充电或者放电的元件。隔离膜用于隔离正极片和负极片，可以在温度上升到一定数值时自动溶解掉附着在其上的微米级(甚至纳米级)微孔，从而使金属离子不能在隔离膜上通过，终止电池单体的内部反应。
泄压机构是指电池单体的内部压力或温度达到预定阈值时致动以泄放内部压力或温度的元件或部件。该阈值设计根据设计需求不同而不同。所述阈值可能取决于电池单体中的正极极片、负极极片、电解液和隔离膜中一种或几种的材料。泄压机构可以采用诸如防爆阀、气阀、泄压阀或安全阀等的形式，并可以具体采用压敏或温敏的元件或构造，即，当电池单体的内部压力或温度达到预定阈值时，泄压机构执行动作或者泄压机构中 设有的薄弱结构被破坏，从而形成可供内部压力或温度泄放的开口或通道。
本申请中所提到的“致动”是指泄压机构产生动作或被激活至一定的状态，从而使得电池单体的内部压力及温度得以被泄放。泄压机构产生的动作可以包括但不限于：泄压机构中的至少一部分破裂、破碎、被撕裂或者打开，等等。泄压机构在致动时，电池单体的内部的高温高压物质作为排放物会从致动的部位向外排出。以此方式能够在可控压力或温度的情况下使电池单体发生泄压，从而避免潜在的更严重的事故发生。
本申请中所提到的来自电池单体的排放物包括但不限于：电解液、被溶解或分裂的正负极极片、隔离膜的碎片、反应产生的高温高压气体、火焰，等等。
电池单体上的泄压机构对电池的安全性有着重要影响。例如，当发生短路、过充等现象时，可能会导致电池单体内部发生热失控从而压力或温度骤升。这种情况下通过泄压机构致动可以将内部压力及温度向外释放，以防止电池单体爆炸、起火。
目前的泄压机构设计方案中，主要关注将电池单体内部的高压和高热释放，即将所述排放物排出到电池单体外部。高温高压的排放物朝向电池单体设置泄压机构的方向排放，并且可更具体地沿朝向泄压机构致动的区域的方向排放，这种排放物的威力和破坏力可能很大，甚至可能足以冲破在该方向上的一个或多个结构，造成安全问题。另外，电池单体内部发生热失控后电池单体内部的高压和高热可能会持续产生，导致持续的安全隐患。
针对上述问题，可以在电池的箱体内设置消防系统，消防系统的消防管道设置在电池单体的设置有泄压机构的壁的上方。泄压机构致动时，消防管道排出消防介质，从而可以对从泄压机构排出的排放物进行降温，降低排放物的危险性；消防介质还可以进一步通过致动后的泄压机构流入到电池单体内部，从而进一步对电池单体降温，增强电池的安全性。例如，可以利用泄压机构致动时，从电池单体内排出的排放物破坏该消防管道，以使得消防管道内的消防介质排出。
本申请实施例中的消防管道用于容纳消防介质，这里的消防介质可以为流体，该流体可以是液体或气体。在泄压机构未破坏该消防管道的情况下，该消防管道中可以不容纳任何物质，而在泄压机构致动的情况下，使得消防管道中容纳消防介质，例如，可以通过开关阀门控制消防介质进入至消防管道中。或者，在泄压机构未被破坏的情况下，该消防管道中也可以始终容纳有消防介质，该消防介质还可以用于调节电池单体的温度。调节温度是指给多个电池单体加热或者冷却。在给电池单体冷却或降温的情况下，该消防管道用于容纳冷却流体以给多个电池单体降低温度，此时，消防管道也可以称为冷却部件、冷却系统或冷却管道等，其容纳的消防介质也可以称为冷却介质或冷却流体，更具体的，可以称为冷却液或冷却气体。可选的，所述消防介质可以是循环流动的，以达到更好的温度调节的效果。可选的，消防介质可以为水、水和乙二醇的混合液或者空气等。
电池在高温高湿环境中，容易在电池的箱体内产生冷凝液，造成安全隐患，影响电池的安全性。具体而言，电池内高温高湿的气体在遇到温度较低的部件，例如电池的箱体内的消防管道时，会产生冷凝液，该冷凝液若滴到电池内的电连接区域，则可能会影响电池的安全性。
鉴于此，本申请提供了一种技术方案，通过在电池内温度较低的部件，例如消防管 道上包覆隔离层，隔离气体与消防管道，这样，降低在消防管道上形成冷凝液的概率，从而减小乃至防止冷凝液对电池中的电连接区域或者其它电气区域造成影响，因此能够增强电池的安全性。
在电池的箱体中，除了上文提到的电池单体以及消防管道外，还可以包括热管理部件、汇流部件以及电池的其他部件。在一些实施例中，箱体中还可以设置用于固定电池单体的结构。箱体的形状可以根据所容纳的多个电池单体而定。在一些实施例中，箱体可以为方形，具有六个壁。
热管理部件是用于容纳流体以给多个电池单体调节温度。这里的流体可以是液体或气体，调节温度是指给多个电池单体加热或者冷却。在给电池单体冷却或降温的情况下，该热管理部件用于容纳冷却流体以给多个电池单体降低温度，此时，热管理部件也可以称为冷却部件、冷却系统或冷却板等，其容纳的流体也可以称为冷却介质或冷却流体，更具体的，可以称为冷却液或冷却气体。另外，热管理部件也可以用于加热以给多个电池单体升温，本申请实施例对此并不限定。可选的，所述流体可以是循环流动的，以达到更好的温度调节的效果。可选的，流体可以为水、水和乙二醇的混合液或者空气等。
汇流部件用于实现多个电池单体之间的电连接，例如并联或串联或混联。汇流部件可通过连接电池单体的电极端子实现电池单体之间的电连接。在一些实施例中，汇流部件可通过焊接固定于电池单体的电极端子。对应于“高压腔”，汇流部件形成的电连接也可称为“高压连接”。
除了汇流部件外，电池内还可以设置用于感测电池单体的状态的传感器件。在本申请实施例中，电池内的电连接可以包括汇流部件形成的电连接和/或传感器件中的电连接。
电池的箱体上还可以设置压力平衡机构，用于平衡箱体内外的压力。例如，当箱体内的压力高于箱体外时，箱体内部的气体可以通过压力平衡机构流到箱体外；当箱体内的压力低于箱体外时，箱体外部的气体可以通过压力平衡机构流入箱体内部。
应理解，以上描述的电池的箱体中的各个部件不应理解为对本申请实施例的限定，也就是说，本申请实施例的用于电池的箱体可以包括上述的部件，也可以不包括上述的部件。
本申请实施例描述的技术方案均适用于各种使用电池的装置，例如，手机、便携式设备、笔记本电脑、电瓶车、电动玩具、电动工具、电动车辆、船舶和航天器等，例如，航天器包括飞机、火箭、航天飞机和宇宙飞船等。
应理解，本申请实施例描述的技术方案不仅仅局限适用于上述所描述的设备，还可以适用于所有使用电池的设备，但为描述简洁，下述实施例均以电动车辆为例进行说明。
例如，如图1所示，为本申请一个实施例的一种车辆1的结构示意图，车辆1可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1的内部可以设置马达50，控制器40以及电池10，控制器30用来控制电池40为马达50的供电。例如，在车辆1的底部或车头或车尾可以设置电池10。电池10可以用于车辆1的供电，例如，电池10可以作为车辆1的操作电源，用于车辆1的电路系统，例如，用于车辆1的启动、导航和运行时的工作用电需求。在本申请的另一实施例中，电池10不仅仅可以作为车辆1的操作电源，还可以作为车辆1的驱动电源， 替代或部分地替代燃油或天然气为车辆1提供驱动动力。
为了满足不同的使用电力需求，电池可以包括多个电池单体，其中，多个电池单体之间可以串联或并联或混联，混联是指串联和并联的混合。电池也可以称为电池包。可选地，多个电池单体可以先串联或并联或混联组成电池模块，多个电池模块再串联或并联或混联组成电池。也就是说，多个电池单体可以直接组成电池，也可以先组成电池模块，电池模块再组成电池。
如图2所示，箱体可以包括两部分，这里分别称为第一部分箱体111和第二部分箱体112，第一部分箱体111和第二部分箱体112扣合在一起。第一部分箱体111和第二部分箱体112的形状可以根据多个电池单体20组合的形状而定，第一部分箱体111和第二部分箱体112可以均具有一个开口。例如，第一部分箱体111和第二部分箱体112均可以为中空长方体且各自只有一个面为开口面，第一部分箱体111的开口和第二部分箱体112的开口相对设置，并且第一部分箱体111和第二部分箱体112相互扣合形成具有封闭腔室的箱体。多个电池单体20相互并联或串联或混联组合后置于第一部分箱体111和第二部分箱体112扣合后形成的箱体内。
可选地，电池10还可以包括其他结构，在此不再一一赘述。例如，该电池10还可以包括汇流部件，汇流部件用于实现多个电池单体20之间的电连接，例如并联或串联或混联。具体地，汇流部件可通过连接电池单体20的电极端子实现电池单体20之间的电连接。进一步地，汇流部件可通过焊接固定于电池单体20的电极端子。多个电池单体20的电能可进一步通过导电机构穿过箱体而引出。可选地，导电机构也可属于汇流部件。
根据不同的电力需求，电池单体20的数量可以设置为任意数值。多个电池单体20可通过串联、并联或混联的方式连接以实现较大的容量或功率。由于每个电池10中包括的电池单体20的数量可能较多，为了便于安装，可以将电池单体20分组设置，每组电池单体20组成电池模块。电池模块中包括的电池单体20的数量不限，可以根据需求设置。例如，图3为电池模块的一个示例。电池可以包括多个电池模块，这些电池模块可通过串联、并联或混联的方式进行连接。图3中，x方向为电池模块宽度方向，y方向为电池模块的长度方向，z方向为电池模块的高度方向。
如图4所示，为本申请一个实施例的一种电池单体20的结构示意图，电池单体20包括一个或多个电极组件22、壳体211和盖板212。图4中所示的坐标系与图3中的相同。壳体211和盖板212形成外壳或电池盒21。壳体211的壁以及盖板212均称为电池单体20的壁。壳体211根据一个或多个电极组件22组合后的形状而定，例如，壳体211可以为中空的长方体或正方体或圆柱体，且壳体211的其中一个面具有开口以便一个或多个电极组件22可以放置于壳体211内。例如，当壳体211为中空的长方体或正方体时，壳体211的其中一个平面为开口面，即该平面不具有壁体而使得壳体211内外相通。当壳体211可以为中空的圆柱体时，壳体211的端面为开口面，即该端面不具有壁体而使得壳体211内外相通。盖板212覆盖开口并且与壳体211连接，以形成放置电极组件22的封闭的腔体。壳体211内填充有电解质，例如电解液。
该电池单体20还可以包括两个电极端子214，两个电极端子214可以设置在盖板212上。盖板212通常是平板形状，两个电极端子214固定在盖板212的平板面上，两个电极端子214分别为正电极端子214a和负电极端子214b。每个电极端子214各对应设置一 个连接构件23，或者也可以称为集流构件23，其位于盖板212与电极组件22之间，用于将电极组件22和电极端子214实现电连接。
如图4所示，每个电极组件22具有第一极耳221a和第二极耳222a。第一极耳221a和第二极耳222a的极性相反。例如，当第一极耳221a为正极极耳时，第二极耳222a为负极极耳。一个或多个电极组件22的第一极耳221a通过一个连接构件23与一个电极端子连接，一个或多个电极组件22的第二极耳212a通过另一个连接构件23与另一个电极端子连接。例如，正电极端子214a通过一个连接构件23与正极极耳连接，负电极端子214b通过另一个连接构件23与负极极耳连接。
在该电池单体20中，根据实际使用需求，电极组件22可设置为单个，或多个，如图4所示，电池单体20内设置有4个独立的电极组件22。
电池单体20上还可设置泄压机构213。泄压机构213用于电池单体20的内部压力或温度达到阈值时致动以泄放内部压力或温度。泄压机构213可以为各种可能的泄压结构，本申请实施例对此并不限定。例如，泄压机构213可以为温敏泄压机构，温敏泄压机构被配置为在设有泄压机构213的电池单体20的内部温度达到阈值时能够熔化；和/或，泄压机构213可以为压敏泄压机构，压敏泄压机构被配置为在设有泄压机构213的电池单体20的内部气压达到阈值时能够破裂。
图5示出了本申请实施例的电池10的示意性分解图。如图5所示，该电池10可以包括：电池单体20和消防管道30。电池单体20包括上述泄压机构213，该泄压机构213用于该电池单体20的内部压力或温度达到阈值时致动以泄放该内部压力。
作为示例，电池10中可以包括至少一个电池单体20，例如，图5中以电池10包括2×9个电池单体20为例。其中，对于任意一个电池单体20，该电池单体20可以包括上述泄压机构213。
可选地，该泄压机构213可以设置在电池单体20的任意位置。若电池单体20为如图5所示的长方体，则泄压机构213可以设置在该长方体的任意一个壁上。例如，泄压机构213可以设置在图5中每个电池单体20的最上方的壁，即泄压机构213和电池单体20的电极端子可以设置在同一壁上。
消防管道30，用于容纳消防介质，该消防管道30用于在泄压机构213致动时排出消防介质；其中，消防管道30包覆有隔离层31，该隔离层31用于阻隔气体与消防管道30接触产生冷凝液。
具体地，泄压机构213致动时，消防管道30排出消防介质，从而可以对从泄压机构213排出的排放物进行降温，降低排放物的危险性；消防介质还可以进一步通过致动后的泄压机构213流入到电池单体20内部，从而进一步对电池单体20降温，增强电池的安全性。可选的，该消防介质也可以称为冷却介质或冷却流体，更具体的，可以称为消防液或消防气体。另外，可选的，该消防介质可以是循环流动的，以达到更好的温度调节的效果。在一些实施方式中，消防介质可以为水、水和乙二醇的混合液或者空气等。
可选地，在本申请实施例中，消防管道30可以根据实际应用设置为任意形状。例如，对于消防管道30的横截面的形状，可以根据实际应用设置为任意形状。考虑到空间利用率和便于安装，可以将消防管道30设置为如图5所示的扁平的管道，或者也可以设置为其他形状，例如圆柱形管道等。为了便于说明，本申请实施例中以图5所示的形状为例 进行描述。
进一步的，如图5所示，上述消防管道30包覆有隔离层31，该隔离层31用于阻隔气体与消防管道30接触产生冷凝液，从而减小该冷凝液对电池10内的电池单体20、电连接区域以及其它电气结构造成影响。
因此，本申请实施例的电池10，可以包括一个或者多个电池单体20，该电池单体20设置有泄压机构213，该泄压机构213可以在电池单体20内部温度或者压力超过阈值时致动，以泄放内部压力；在与泄压机构213对应的上方设置有消防管道30，在泄压机构213致动时，消防管道30内容纳的消防介质流出并流向电池单体20，以对电池单体20进行降温；同时，该消防管道30包覆有隔离层31，该隔离层31可以用于减少在消防管道30上形成冷凝液的可能性，从而减小冷凝液对电池造成影响，提升电池10的安全性。
可选的，隔离层31除了可以用于阻隔气体与消防管道30以外，该隔离层31的材料还可以为保温隔热材料，其导热系数较小，环境温度以及消防管道30的温度对其影响较小，且高温高湿的气体在该隔离层31的表面也不易形成冷凝液。
在一些实施方式中，若消防管道30中的消防介质为消防液，该隔离层31可为不吸水材质，防止消防管道30在排出消防液后，隔离层31吸收该消防液，影响冷却降温效果，也降低在隔离层31处引入液体的概率，减小液体对电池单体20的以及电池10中的其它电气结构造成影响。
作为示例，上述隔离层31可为闭孔泡棉，该闭孔泡棉中的孔泡均为密闭孔泡，其具有优良的抗冲击性，反弹性，柔软性，隔热性，防水性等优点，便于包覆至消防管道30。
作为示例，上述隔离层31的厚度可以大于1mm，以保证良好的隔热保温性能。且若隔离层31为厚度大于1mm的闭孔泡棉，当消防管道30受到冲击与电池10中的其它部件发生碰撞时，可以起到缓冲作用。
可以理解的是，隔离层31除了可以为闭孔泡棉以外，还可以为其它具有保温、不吸水等特性的隔离材料，其厚度也可以根据实际需求进行设计，本申请实施例对该隔离层31的具体类型以及厚度不做限定。
图6示出了本申请实施例中的另一种电池10的结构示意图。
如图6所示，在本申请实施例中，电池10还包括汇流部件12，该汇流部件12包括汇流单元121和汇流连接端口122。
具体的，汇流部件12包括多个汇流单元121，该多个汇流单元121用于实现电池10中多个电池单体20的电连接，且多个汇流单元121中的每个汇流单元121用于实现相邻电池单体20的电连接，具体地，每个汇流单元121可通过连接相邻电池单体20的电极端子实现电池单体20的电连接。
此外，汇流部件12还包括多个汇流连接端口122，该多个汇流连接端口122用于输出电池10中多个电池单体20的电能。
此处需要说明是，在本申请实施例中，该多个汇流连接端口122为至少一组汇流连接端口122，每一组汇流连接端口122包括一个正极连接端口和一个负极连接端口，用于输出电池10中一组电池单体20的电能，为了方便描述，可以将该一组汇流连接端口122对应的一组电池单体20称之为一个电池单体组。电池10可以包括一个或者多个电池单体组，即对应的包括一组或者多组汇流连接端口122。若电池10包括多个电池单体组， 多组汇流连接端口122通过电连接件相互连接，用于形成电池10的电能输出端口。
作为示例，如图6所示，在一种实施方式中，该电池10包括两个汇流连接端口122，即一组汇流连接端口122，电池10中的多个电池单体20为一个电池单体组。该两个汇流连接端口122可位于一个电池单体组的同一侧。进一步地，在该组汇流连接端口122中，正极连接端口和负极连接端口可相邻设置，用于输出该一个电池单体组的电能。
在本申请实施例中，消防管道30在上述汇流连接端口122对应的区域包覆有隔离层31，以降低冷凝液形成于汇流连接端口122对应的区域的概率，以减小乃至防止冷凝液对该汇流连接端口122造成电气性能的影响。此外，隔离层31还能用于防止消防管道30与连接至汇流连接端口122的电连接件发生搭接，造成短路打火问题，以进一步提升电池10的安全性。
可以理解的是，上述汇流连接端口122用于输出电池10中多个电池单体20的电能，若有冷凝液形成于汇流连接端口122上，一方面会影响汇流连接端口122的电能传输，另一方面，冷凝液也容易对金属材质的汇流连接端口122以及汇流连接端口122之间的电连接件造成腐蚀，进一步影响汇流连接端口122的电气性能。
此外，若冷凝液形成于两个汇流连接端口122之间，且该两个汇流连接端口122之间的电势差较大，则冷凝液会造成两个汇流连接端口122之间的短路，在多个电池单体20中产生大的电流，同时产生大量的热量，导致电池单体20的损坏乃至发生爆炸，引发安全事件。
作为示例，在本申请实施例中，在电池单体20中，泄压机构213和电极端子214均位于电池单体20的第一壁，可以理解的是，多个电池单体20的第一壁位于同一平面上，为了方便描述，下文将多个电池单体20的第一壁所在面称为多个电池单体20的第一面。
可选地，若将图6中的汇流部件12安装于多个电池单体20上，在汇流部件12中，用于连接多个电池单体20的电极端子的汇流单元121可位于上述第一面上，进一步的，汇流连接端口122可位于第一面的边缘，例如，位于第一面的一侧，且为了方便与电连接件连接，该汇流连接端口122可形成为弯折结构，包括位于第一面的第一板和垂直于第一板的第二板。
可选地，消防管道30可设置于上述汇流部件12的上方，即位于第一面的上方，在消防管道30受到泄压机构213排出的排放物的破坏时，其中的消防介质可以在重力作用下排出，对泄压机构213的排放物进行降温冷却。
在本申请实施例中，若汇流连接端口122位于第一面的某一侧，消防管道30中与汇流连接端口122对应的区域包括但不限于消防管道30中位于该某一侧上方的区域，该消防管道30中与汇流连接端口122对应的区域与汇流连接端口122之间的距离较近。
由于该消防管道30中与汇流连接端口122对应的区域与汇流连接端口122之间的距离较近，该对应的区域中若形成冷凝液，容易滴落至汇流连接端口122，影响该汇流连接端口122的电气性能。因此，首要的，需要在该对应的区域包覆隔离层31，降低形成冷凝液的概率。
作为示例，图7示出了本申请实施例中的另一种电池10的结构示意图。
如图7所示，在本申请实施例中，电池10还包括传感部件15，该传感部件15包括传感单元151、传输线路152以及传感端口153。
其中，多个传感单元151用于感测多个电池单体20的状态，作为示例，传感单元151包括但不限于是用于感测多个电池单体20的温度、电压、电流等状态信号的至少一个传感器。该传感单元151感测得到的多个电池单体20的状态信号通过至少一条传输线路152进行传输，该传输线路152例如可以是电信号传输线或者是电路板，其中，电路板包括但不限于是柔性电路板(Flexible Printed Circuit，FPC)，其厚度较薄且易于安装。传输线路152的一端设置有传感端口153，该传感端口153用于输出传输线路152中传输的状态信号。
可选地，在本申请实施例中，消防管道30在上述传感端口153对应的区域包覆有隔离层31。
如图7所示，在传感部件15中，传输线路152位于多个电池单体20的泄压机构213所在的第一面的上方，作为示例，传感端口153可以与图6中的汇流连接端口122类似，传感端口153靠近于第一面中的一侧设置。
在本申请实施例中，若传感端口153靠近于第一面的某一侧设置，消防管道30中与传感端口153对应的区域包括但不限于消防管道30中位于该某一侧上方的区域，该消防管道30中与传感端口153对应的区域与传感端口153之间的距离较近。
由于该消防管道30中与传感端口153对应的区域与传感端口153之间的距离较近，该对应的区域中若形成冷凝液，容易滴落至汇流连接端口122，影响该传感端口153的多个电池单体20的状态信号的传输。因此，需要在该对应的区域包覆隔离层31，降低形成冷凝液的概率。
在一些实施方式中，上述传感部件15中的传感端口153与汇流部件12中的汇流连接端口122位于多个电池单体20的同一侧。
例如，在上文图6和图7中，传感部件15中的传感端口153与汇流部件12中的汇流连接端口122靠近于第一面的同一侧设置。在该情况下，消防管道30在该汇流连接端口122对应的区域与消防管道30在该传感端口153对应的区域可以为相同或者相近的区域。
因此，相比于消防管道30在汇流连接端口122对应的区域与消防管道30在该传感端口153对应的区域为不同区域的情况，采用本申请实施例的技术方案，消防管道30不需在多个不同区域包覆隔离层31，而仅需在同一区域包覆隔离层31，即可减小乃至防止冷凝液对汇流连接端口122和传感端口153造成影响，在保证电池10安全性能的前提下，可以减少隔离层31的使用量，既能降低成本也能相对增加消防管道30中未包覆隔离层31的区域，让消防管道30起到更好的温度调节作用。
在一些实施方式中，电池10中还包括绝缘介质层，设置于上述消防管道30与电池单体20之间。
可选地，在电池单体20的泄压机构213致动时，通过泄压机构213排出的排放物可以快速熔化覆盖在泄压机构213的上方的绝缘介质层的对应位置，以泄放电池单体20的内部温度和压力，因此，绝缘介质层在泄压机构213的位置的材料的熔点通常较低。
本申请实施例中的绝缘介质层用于电池单体20的泄压机构213所在的壁与消防管道30之间的绝缘，考虑到电池10中可以设置有多个电池单体20，而对于设置有数量较多的电池单体20的情况，多个电池单体20可以对应于较大面积的绝缘介质层，便于其在 电池10中的安装。
可选地，电池10中可包括两层绝缘介质层，用于上下包覆上述汇流部件12中的汇流单元121和/或传感部件15中的传感单元151和传感线路152，只留出汇流连接端口122和传感端口153。
可选地，消防管道30在绝缘介质层对应的区域可以不包覆隔离层31，即使消防管道30在该区域上形成了冷凝液，绝缘介质层也可用于将冷凝液与其包覆的汇流单元121和/或传感单元151和传感线路152进行绝缘隔离，进一步地，该绝缘介质层还可用于将冷凝液与电池单体20进行绝缘隔离。
为了方便描述，下文中，将绝缘介质层包覆汇流单元121、传感单元151和传感线路152之后形成的结构，称之为传输组件。
作为示例，图8示出了一种传输组件16的示意性结构图，该传输组件16设置于消防管道30与电池单体20之间，且该传输组件16对应于2×9个电池单体20。
可选地，汇流部件12中的汇流连接端口122与传感部件15中的传感端口153均位于绝缘介质层161的同一侧。在一些实施例中，如图8所示，两个传感端口153分别位于两个汇流连接端口122的两侧。
在本申请实施例中，通过绝缘介质层161包覆上述汇流部件12中的汇流单元121和传感部件15中的传感单元151和传感线路152，形成传输组件16，消防管道30在绝缘介质层161对应的区域可以不包覆隔离层31，而在汇流连接端口122和传感端口153对应的区域包覆隔离层31，从而使得消防管道30仅有较小面积区域包覆隔离层31，用于减小乃至防止冷凝液对汇流连接端口122和传感端口153造成影响，而其他较大面积区域不包覆隔离层31，使得消防管道30起到更好的冷却降温作用。因此，通过本申请实施例的方案，能够进一步增强电池10的安全性能。
可以理解的是，上述传输组件16除了包括绝缘介质层161、以及其中的汇流部件12、传感部件15以外，还可以包括例如消防管道30的支架等其它结构件，本申请实施例对此传输组件16的具体结构不做限定。
还可以理解的是，上文图6至图8的实施例中，仅示出了传感部件15中的传感端口153与汇流部件12中的汇流连接端口122位于多个电池单体20的同一侧的情况，可以理解的是，传感部件15中的传感端口153与汇流部件12中的汇流连接端口122也可以位于多个电池单体20的不同侧，例如，汇流部件12中的汇流连接端口122位于上述第一面中的第一侧，传感部件15中的传感端口153位于上述第一面中与第一侧相对的第二侧。本申请实施例对传感端口153与汇流连接端口122的具体位置不做具体限定。
上文结合图4至图8，说明了本申请中消防管道30上包覆的隔离层31与汇流部件12以及传感部件15的位置关系。下面，结合图9至图18，说明消防管道30的设计以及隔离层31在消防管道30中的位置设计。
图9示出了本申请实施例提供的一种消防管道30的立体结构示意图。图10示出了图9中消防管道30的俯视图。
可选地，消防管道30包括多个第一部分301和至少一个第二部分302，该多个第一部分301相互平行设置，且沿多个电池单体20的堆叠方向(如图中所示的y方向)延伸，该至少一个第二部分302中每个第二部分302连接多个第一部分301中相邻的两个第一 部分的端部。
需要说明的是，该多个第一部分301可以近似平行，多个第一部分301中两个第一部分301可能具有微小的夹角，作为示例，该夹角可以为5度以内的夹角。
可选地，消防管道30中的第一部分301可以为直线型管道，第二部分302可以为U形管道、直线型管道、或者其它形状的管道，例如，如图10所示，第二部分302的中部为直线型管道，直线型管道的两端连接有圆弧弯角管道，该圆弧弯角管道用于连接第一部分301。当然，除了上述举例以外，第一部分301和第二部分302还可以为其它形状的相互连通的管道，本申请实施例对此不做具体限定。
作为示例，在图9和图10所示的实施例中，消防管道30中包括三个第一部分301以及两个第二部分302。该三个第一部分301和两个第二部分302形成的消防管道30可以近似为S型管道。
可选地，如图9和图10所示，在消防管道30的两端，还包括消防介质入口303以及消防介质出口304，该消防介质入口303以及消防介质出口304分别连接两个第一部分301的端部，图中消防介质入口303以及消防介质出口304旁示出的虚线框区域为消防介质入口303以及消防介质出口304与第一部分301的端部的连接区域。
可选地，该消防介质入口303和消防介质出口304可以分别连接至入口阀门和出口阀门。其中，进口阀门用于向消防管道30中填充消防介质，相反的，出口阀门用于向外排出消防介质，同时设置有进口阀门和出口阀门可以实现消防管道30内消防介质的循环。另外，阀门的位置可以根据实际应用进行设置，例如，进口阀门和出口阀门分别设置于电池10的两个对侧。又例如，若电池10包括多组阀门，可以将多组阀门中的进口阀门均设置于同一侧，且将多组阀门中的出口阀门设置于同一对侧，但本申请实施例并不限于此。
图11示出了将上述图9和图10中的消防管道30与多个电池单体20组装之后的电池10的结构示意图。图12为图11中电池10的俯视示意图。
作为示例，在图11和图12中，电池10中包括6×18个电池单体20，在堆叠方向上，1×18个电池单体20称为一排电池单体20。可选地，该多个电池单体20上方设置有两个消防管道30，在每个消防管道30中，三个第一部分301一一对应的位于相邻的三排电池单体20的上方。两个第二部分302分别连接相邻的两个第一部分301的端部。
如图11和图12所示，根据电池单体20中泄压机构的位置，消防管道30中多个第一部分301设置在多个电池单体20的多个泄压机构的上方，即该消防管道30中多个第一部分301可设置在该多个泄压机构的远离该多个电池单体20的内部的一侧。
可选地，在本申请实施例中，在消防管道30中，第一部分301的长度可以与一排电池单体20的长度相当，例如，该第一部分301的长度大于一排电池单体20中泄压结构213连线的长度，小于等于一排电池单体20的长度。概括来说，第一部分301的端部位于一排电池单体20的两侧上方。进一步地，第一部分301的端部位于一排电池单体20的两侧的中心的上方。
由于第二部分302用于连接两个第一部分301的端部，该第二部分302对应的也可以认为位于两排电池单体20的两侧。
可选地，上述两个消防管道30可以以任意排列方式设置在多个电池单体20上方。 作为示例，可以如图12中所示，两个消防管道30在多个电池单体20上方呈镜像排列。此外，该两个消防管道30也可以按照阵列等其它方式排列，本申请实施例对此不做具体限定。
可以理解的是，图11和图12中以电池10中包括六排电池单体20，且一个消防管道30对应三排电池单体20为例进行举例说明，一个消防管道30还可以对应于两排、四排或者是四排以上的电池单体20，本申请实施例对此不做具体限定。此外，电池10中也不限于是包括2个消防管道30，其可以仅包括1个消防管道30，又或者是3个或3个以上的消防管道30，本申请实施例对此也不做具体限定。
可选地，该电池10中还包括传感部件15。若电池10中包括多排电池单体20，每一排电池单体20对应设置一条传感线路152，多条传感线路152端部的多个传感端口153设置于上述多个第一部分301的端部的对应区域。
可选地，该电池10中还包括汇流部件12。可选地，若电池10中包括多排电池单体20，每一排或多排电池单体20形成一个电池模组，对应设置一个汇流部件12，该汇流部件12的汇流连接端口122设置于传感部件15的传感端口153的一侧。
在一些实施方式中，绝缘介质层161包覆汇流部件12中的汇流单元121以及传感部件15中的传感单元151和传感线路152，形成传输组件16。汇流部件12中的汇流连接端口122与传感部件15中的传感端口153均位于绝缘介质层161的同一侧。可选地，该绝缘介质层161的面积可以与电池10中多个电池单体20的第一壁所在平面的面积相等或相近。
作为示例，图13示出了传输组件16与消防管道30的结构示意图。
可选地，该传输组件16可对应的设置于图11中的6×18个电池单体20(图13中未示出)与两个消防管道30之间。可选地，在绝缘介质层161的一侧边缘设置有6个传感端口153和6个汇流连接端口122。
在本申请实施例中，消防管道30中的第一部分301可位于传感部件15中传感线路152(图中未示出)的上方，第二部分302在绝缘介质层161的两侧边缘处连接相邻的两个第一部分301。
为了便于说明传感端口153、汇流连接端口122和消防管道30的位置关系，图14和图15示出了电池10中的两种局部放大的结构示意图。
如图14所示，两排电池单体20上方设置有两个第一部分301，两个第一部分301的端部之间连接有第二部分302。两个第一部分301中，每个第一部分301的其中一个端部位于一排电池单体20的一侧边缘上方。且一排电池单体20的一侧边缘还设置有传感部件15的一个传感端口153，且该传感端口153靠近于第一部分301的端部的下方设置，为了降低该第一部分301的端部附近形成冷凝液的概率，减小乃至防止冷凝液对传感端口153造成影响，可在第一部分301的端部周围设置隔离层31。
在一些实施方式中，连接第一部分301的端部的第二部分302中的至少部分区域包覆隔离层31。
作为示例，如图14所示，连接上述两个第一部分301端部的第二部分302中的至少部分区域包覆隔离层31，该第二部分302位于传感端口153所在的电池单体20的一侧边缘，若形成冷凝液，容易对传感端口153造成影响。
除了第二部分302连接第一部分301的端部以外，还有其他部件可连接第一部分301的端部。
可选地，在本申请实施例中，消防管道30的消防介质入口303或消防介质出口304连接有第一部分301，该消防介质入口303或消防介质出口304与第一部分301的连接区域包覆有隔离层31。
如图15所示，两排电池单体20上方设置有两个第一部分301，消防管道30的消防介质出口304(或者也可以为消防介质入口303)连接有其中一个第一部分301，另一个第一部分301的端部连接第二部分302。
与图14类似地，在图15中，传感端口153靠近于第一部分301的端部的下方设置，其中一个传感端口153靠近于消防介质出口304，另一个传感端口153靠近于第二部分302。为了降低在第一部分301的端部附近形成冷凝液的概率，减小冷凝液对传感端口153造成影响，可在该第一部分301与消防介质入口303或消防介质出口304的连接区域(图中虚线框所示)包覆有隔离层31，以及第二部分302中的至少部分区域包覆隔离层31，减小乃至防止形成冷凝液对传感端口153造成影响。
进一步地，汇流部件12的汇流连接端口122设置于传感部件15的传感端口153的一侧。
作为示例，如图14和图15所示，在一排电池单体20中，其端部的中间区域设置一个传感端口153，传感端口153的一侧设置有一个汇流连接端口122，传感端口153和汇流连接端口122设置于一排电池单体20的同一侧边缘。
如图14和图15所示，该汇流连接端口122在第一部分301的端部的斜下方设置。为了降低在该第一部分301的端部附近形成冷凝液的概率，减小冷凝液对汇流连接端口122造成影响，可在第一部分301的端部周围设置隔离层31。
由图14和图15可以看出，汇流连接端口122与第一部分301的端部之间的距离略远于传输接口153与第一部分301的端部之间的距离，若消防管道30上包覆的隔离层31能够减小形成冷凝液对传输接口153造成影响，则也能减小形成冷凝液对汇流连接端口122造成影响。
因此，在一些实施方式中，在连接第一部分301端部的第二部分302中的至少部分区域均包覆隔离层31，减小第二部分302上形成的冷凝液对传输接口153造成影响的同时，也能减小冷凝液对汇流连接端口122造成影响。进一步地，消防管道30的消防介质入口303或消防介质出口304连接有第一部分301，该消防介质入口303或消防介质出口304与第一部分301的连接区域包覆有隔离层31，减小在连接区域上形成的冷凝液对传输接口153造成影响的同时，也能减小冷凝液对汇流连接端口122造成影响。
可选地，在一些实施方式中，如图14所示，第二部分302中的直线管道部分包覆有隔离层31，而第二部分302中，与第一部分302连接的连接部不包覆隔离层31。
可选地，如图14和15所示，第一部分301可以不包覆隔离层31，该不包覆隔离层31的第一部分301和/或第二部分302中的连接部，可以用于对电池单体20调节温度。
可选地，在另一些实施方式中，第二部分302中的直线管道部分以及与第一部分302连接的连接部均包覆隔离层31。或者，消防管道30中第一部分301端部及其附近的其它区域也可以包覆隔离层31，以进一步减小形成冷凝液的概率。
可选地，第二部分302中包覆有隔离层31的区域在第一平面中的正投影与多个电池单体20在第一平面中的正投影至少部分重叠，其中，第一平面为垂直于多个电池单体20的高度方向的平面。
可选地，消防介质入口303和/或消防介质出口304与第一部分301的连接区域中包覆有隔离层31的区域在第一平面中的正投影与多个电池单体20在该第一平面中的正投影至少部分重叠。
在一些实施方式中，该第一平面可以为上文中多个电池单体20的第一面所在平面，该多个电池单体20在第一平面中的正投影即为多个电池单体20的第一面。
在另一些实施方式中，该第一平面也可以为与多个电池单体20的第一面平行的平面，该多个电池单体20在第一平面中的正投影为多个电池单体20的第一面在第一平面中的正投影。
图16示出了一种电池10的示意性俯视图。
如图16所示，第二部分302中包覆有隔离层31的区域在多个电池单体20的第一面的正投影(图中所示的一部分黑色区域)与多个电池单体20的第一面至少部分重叠。
此外，消防介质入口303和消防介质出口304与第一部分301的连接区域中包覆有隔离层31的区域在多个电池单体20的第一面的正投影(图中所示的另一部分黑色区域)与多个电池单体20的第一面至少部分重叠。
可选地，隔离层31在消防管道30中设置的区域除了可以如图16所示的情况以外，第二部分302中包覆有隔离层31的区域在第一平面中的正投影与多个电池单体20在该第一平面中的正投影也可互不重叠。
此外，除了第二部分302中包覆有隔离层31的区域以外，消防管道30中其它包覆有隔离层31的区域在第一平面中的正投影与多个电池单体20在该第一平面中的正投影也可互不重叠。例如，消防介质入口303和消防介质出口304与第一部分301的连接区域中包覆有隔离层31的区域在第一平面中的正投影与多个电池单体20在该第一平面中的正投影也互不重叠。
换言之，在该实施方式下，消防管道30中全部包覆有隔离层31的区域在第一平面中的正投影与多个电池单体20在该第一平面中的正投影均互不重叠。
通过上述申请实施例的方案，可以将消防管道30紧密设置于多个电池单体20上方，减小消防管道30与多个电池单体20之间的距离，从而提高消防管道30对多个电池单体20的温度调节效果。同时减小消防管道30在电池10内高度方向占用的空间，提高电池10能量密度。
本申请一个实施例还提供了一种用电装置，该用电装置可以包括前述各实施例中的电池10。可选地，用电装置可以为车辆1、船舶或航天器。
上文描述了本申请实施例的用于电池的箱体、电池和用电装置，下面将描述本申请实施例的制备电池的方法和装置，其中未详细描述的部分可参见前述各实施例。
图17示出了本申请一个实施例的制备电池的方法300的示意性流程图。如图17所示，该方法300可以包括：
310，提供电池单体20，该电池单体20包括泄压机构213，该泄压机构213用于电池单体20的内部压力或温度达到阈值时致动以泄放内部压力；
320，提供消防管道30，该消防管道30容纳消防介质，该消防管道30用于在泄压机构213致动时排出消防介质，其中，消防管道30包覆有隔离层31，该隔离层31用于阻隔气体与消防管道30接触产生冷凝液。
图18示出了本申请一个实施例的制备电池的装置400的示意性框图。如图18所示，制备电池的装置400可以包括：提供模块410和安装模块420。
提供模块410用于：提供电池单体20，该电池单体20包括泄压机构213，该泄压机构213用于电池单体20的内部压力或温度达到阈值时致动以泄放内部压力；提供消防管道30，该消防管道30容纳消防介质，该消防管道30用于在泄压机构213致动时排出消防介质，其中，消防管道30包覆有隔离层31，该隔离层31用于阻隔气体与消防管道30接触产生冷凝液。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换，但这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (24)

  1. 一种电池(10)，其特征在于，包括：
    电池单体(20)，包括泄压机构(213)，所述泄压机构(213)用于所述电池单体(20)的内部压力或温度达到阈值时致动以泄放所述内部压力；
    消防管道(30)，用于容纳消防介质，所述消防管道(30)用于在所述泄压机构(213)致动时排出所述消防介质；
    其中，所述消防管道(30)包覆有隔离层(31)，所述隔离层(31)用于阻隔气体与所述消防管道(30)接触产生冷凝液。
  2. 根据权利要求1所述的电池，其特征在于，所述电池还包括：
    汇流部件(12)，包括汇流单元(121)以及汇流连接端口(122)；
    所述汇流单元(121)用于实现多个电池单体(20)的电连接，所述汇流连接端口(122)用于输出所述多个电池单体(20)的电能；
    所述消防管道(30)在所述汇流连接端口(122)对应的区域包覆有所述隔离层(31)。
  3. 根据权利要求2所述的电池，其特征在于，所述电池还包括：
    传感部件(15)，包括传感单元(151)、传感线路(152)以及传感端口(153)；
    所述传感单元(151)用于感测所述多个电池单体(20)的状态，所述传感端口(153)用于通过所述传感线路(152)输出所述多个电池单体(20)的状态信号；
    所述消防管道(30)在所述传感端口(153)对应的区域包覆有所述隔离层(31)。
  4. 根据权利要求3所述的电池，其特征在于，所述汇流连接端口(122)和所述传感部件(15)的传感端口(153)位于所述多个电池单体(20)的同一侧。
  5. 根据权利要求2至4中任一项所述的电池，其特征在于，所述消防管道(30)包括多个第一部分(301)和至少一个第二部分(302)，所述多个第一部分(301)相互平行设置，且沿所述多个电池单体(20)的堆叠方向延伸，所述至少一个第二部分(302)中每个第二部分(302)连接所述多个第一部分(301)中相邻的两个第一部分(301)的端部；
    其中，所述多个第一部分(301)设置于所述多个电池单体(20)的多个所述泄压机构(213)的远离所述多个电池单体(20)内部的一侧。
  6. 根据权利要求5所述的电池，其特征在于，所述电池的传感部件(15)的传感端口(153)设置于所述多个第一部分(301)的端部的对应区域。
  7. 根据权利要求5或6所述的电池，其特征在于，所述汇流部件(12)的汇流连接端口(122)设置于所述电池的传感部件(15)的传感端口(153)的一侧。
  8. 根据权利要求5至7中任一项所述的电池，其特征在于，所述第二部分(302)中的至少部分区域包覆所述隔离层(31)。
  9. 根据权利要求5至7中任一项所述的电池，其特征在于，所述第二部分(302)中包覆有所述隔离层(31)的区域在第一平面中的正投影与所述多个电池单体(20)在所述第一平面中的正投影互不重叠，其中，所述第一平面为垂直于所述多个电池单体(20)的高度方向的平面。
  10. 根据权利要求5至9中任一项所述的电池，其特征在于，所述消防管道(30)的消防介质入口或消防介质出口连接有所述第一部分(301)，所述第一部分(301)与 所述消防介质入口或所述消防介质出口的连接区域包覆所述隔离层(31)。
  11. 根据权利要求5至9中任一项所述的电池，其特征在于，所述第一部分(301)不包覆所述隔离层(31)，所述第一部分(301)用于对所述多个电池单体(20)进行冷却。
  12. 根据权利要求1至11中任一项所述的电池，其特征在于，所述隔离层(31)为不吸水材质。
  13. 根据权利要求12所述的电池，其特征在于，所述隔离层(31)为闭孔泡棉，所述闭孔泡棉中的孔泡均为密闭孔泡。
  14. 根据权利要求1至13中任一项所述的电池，其特征在于，所述隔离层(31)用于隔离所述消防管道(30)与所述汇流部件(12)。
  15. 根据权利要求1至14中任一项所述的电池，其特征在于，还包括：
    绝缘介质层，设置于所述消防管道(30)与所述电池单体(20)之间。
  16. 根据权利要求1至15中任一项所述的电池，其特征在于，所述隔离层(31)的厚度大于1mm。
  17. 一种用电装置，其特征在于，包括：根据权利要求1至16中任一项所述的电池(10)。
  18. 根据权利要求17所述的用电装置，其特征在于，所述用电装置为车辆、船舶或航天器。
  19. 一种制备电池的方法(300)，其特征在于，包括：
    提供(310)电池单体(20)，所述电池单体(20)包括泄压机构(213)，所述泄压机构(213)用于所述电池单体(20)的内部压力或温度达到阈值时致动以泄放所述内部压力；
    提供(320)消防管道(30)，所述消防管道(30)容纳消防介质，所述消防管道(30)用于在所述泄压机构(213)致动时排出所述消防介质；
    其中，所述消防管道(30)包覆有隔离层(31)，所述隔离层(31)用于阻隔气体与所述消防管道(30)接触产生冷凝液。
  20. 根据权利要求19所述的方法，其特征在于，所述方法还包括：
    提供汇流部件(12)，所述汇流部件(12)包括汇流单元(121)以及汇流连接端口(122)；
    所述汇流单元(121)用于实现多个电池单体(20)的电连接，所述汇流连接端口(122)用于输出所述多个电池单体(20)的电能；
    所述消防管道(30)在所述汇流连接端口(122)对应的区域包覆有所述隔离层(31)。
  21. 根据权利要求20所述的方法，其特征在于，所述方法还包括：
    提供传感部件(15)，所述传感部件(15)包括传感单元(151)、传感线路(152)以及传感端口(153)；
    所述传感单元(151)用于感测多个所述电池单体(20)的状态，所述传感端口(153)用于通过所述传感线路(152)输出多个所述电池单体(20)的状态信号；
    所述消防管道(30)在所述传感端口(153)对应的区域包覆有所述隔离层(31)。
  22. 根据权利要求19至21中任一项所述的方法，其特征在于，所述消防管道(30) 中包覆有所述隔离层(31)的区域在第一平面中的正投影与所述多个电池单体(20)在所述第一平面中的正投影互不重叠，其中，所述第一平面为垂直于多个所述电池单体(20)的高度方向的平面。
  23. 根据权利要求19至22中任一项所述的方法，其特征在于，所述隔离层(31)为不吸水材质。
  24. 一种制备电池的装置(400)，其特征在于，包括：
    提供模块(410)，用于：
    提供电池单体(20)，所述电池单体(20)包括泄压机构(213)，所述泄压机构(213)用于所述电池单体(20)的内部压力或温度达到阈值时致动以泄放所述内部压力；
    提供消防管道(30)，所述消防管道(30)容纳消防介质，所述消防管道(30)用于在所述泄压机构(213)致动时排出所述消防介质；
    其中，所述消防管道(30)包覆有隔离层(31)，所述隔离层(31)用于阻隔气体与所述消防管道(30)接触产生冷凝液。
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