WO2023115500A1 - 端板、电池模组、电池、用电装置及端板制造方法 - Google Patents

端板、电池模组、电池、用电装置及端板制造方法 Download PDF

Info

Publication number
WO2023115500A1
WO2023115500A1 PCT/CN2021/141034 CN2021141034W WO2023115500A1 WO 2023115500 A1 WO2023115500 A1 WO 2023115500A1 CN 2021141034 W CN2021141034 W CN 2021141034W WO 2023115500 A1 WO2023115500 A1 WO 2023115500A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
main body
partition
end plate
groove
Prior art date
Application number
PCT/CN2021/141034
Other languages
English (en)
French (fr)
Inventor
刘旋
阮生甡
Original Assignee
宁德时代新能源科技股份有限公司
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 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to EP21968640.9A priority Critical patent/EP4391209A1/en
Priority to PCT/CN2021/141034 priority patent/WO2023115500A1/zh
Priority to CN202180095009.3A priority patent/CN116964860A/zh
Publication of WO2023115500A1 publication Critical patent/WO2023115500A1/zh

Links

Images

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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • 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 present application relates to the field of batteries, in particular to an end plate, a battery module, a battery, an electrical device and a method for manufacturing the end plate.
  • a battery module usually includes multiple battery cells, end plates located at both ends of the multiple battery cells, and side plates located on both sides of the multiple battery cells.
  • the end plates are fixedly connected to the side plates to clamp the multiple battery cells .
  • the battery output pole is installed on the end plate together with the output pole base, and the electrical signal in the battery module is transmitted to the outside of the battery module through the output pole.
  • the embodiment of the present application provides an end plate, battery module, battery, electrical device and end plate manufacturing method, which can reduce the assembly interface between the end plate and the base for fixing the output pole, reduce the cost, and ensure that the end plate has a good Appearance.
  • an end plate for a battery module comprising: a main body disposed at both ends of the battery module for fixing the battery cells in the battery module; a base for fixing the output pole of the battery module; and a partition, located in the main body, for separating the main body and the base.
  • the material for making the base can be connected to the main part by injection molding, which can Eliminate the assembly interface and gap between the base and the main body, make their connection more tightly and firmly, and avoid the cost of making the base separately and then assembling, and the material of the base will not overflow into the main body.
  • the position below the bottom ensures that the end plate has a good and flat appearance as a whole.
  • the main body is made of metal material, and/or the base is made of plastic.
  • the main body made of metal material has high strength and can resist the expansion force of high cycle numbers inside the battery module.
  • the base made of plastic can save the manufacturing cost of the end plate.
  • the main body part includes a groove
  • the partition part is located in the groove
  • the base includes a connecting part
  • the connecting part abuts against the partition part and is fixed with the main body part. connect. Since the partition is located in the groove, when the base is connected to the main body by injection molding, the material of the base enters the groove and touches the partition. part fixed connection.
  • a step is provided in the groove, and the partition abuts against the step.
  • the partition part By providing the step part and abutting the partition part on the step part, the partition part can be easily arranged in the groove, and the connection between the base and the main part is facilitated.
  • the base includes a positive base, a negative base and a base body, the positive base and the negative base are respectively arranged at both ends of the base body along the length direction of the end plate, the positive base, the negative base
  • the base and the base body are integrally formed. Compared with the structure in which the positive base, the negative base and the base body are separated from each other in the prior art, by integrally forming the positive base, the negative base and the base body, not only can the assembly interface and the assembly gap be eliminated, the connection will be tighter, and the manufacturing cost.
  • the groove includes a first groove, a second groove and a third groove respectively corresponding to the positive base, the negative base and the base body.
  • the first groove, the second groove and the third groove corresponding to the positive base, the negative base and the base body respectively the positive base, the negative base and the base body can be formed when the base is connected to the main body. They are respectively precisely connected to predetermined positions of the main body, and the arrangement of multiple grooves forms a structure of multiple connections between the base and the main body, which can make the connection between the base and the main body tighter.
  • the partition includes a first partition, a second partition and a third partition, wherein the first partition is located in the first groove, and the second partition is located in In the second groove, and the third partition is located in the third groove.
  • the first partition closes the first groove
  • the second partition closes the second groove
  • the third partition closes the third groove. Since different battery modules have different requirements for the setting positions of positive output poles, negative output poles and CCS, the setting of the positive pole base, negative pole base and base body for fixing the positive output poles, negative output poles, and CCS The location is also based on that need.
  • the first partition, the second partition and the third partition can be respectively located at different positions in the first groove, the second groove and the third groove, thereby, when the base is shaped, the The positive base, the negative base and the base body are connected to different positions of the end plate.
  • the distance between the third partition and the bottom surface of the main body is greater than the distance between the first partition and the second partition and the main body. the distance between the bottom faces.
  • the part corresponding to the third partition is the base body used to fix the CCS. Since the CCS is usually a plate-shaped structure located on the top of the battery module, which is higher than the position where the output pole is located, the third partition and the main body The distance between the bottom surface of the part is set to be greater than the distance between the first partition and the second partition and the bottom surface of the main body, which can make the molded base more conveniently connected with the positive output pole, negative output pole and CCS. In addition, the distance between the first partition and the second partition and the bottom surface of the main body is small, so that the positive base and the negative base can penetrate deeper into the main body, and the bonding strength between the two ends of the base and the main body is strengthened .
  • the groove wall of the groove is provided with a first recess
  • the connecting portion is provided with a protrusion corresponding to the first recess
  • the groove wall of the groove is provided with a first A convex portion
  • the connecting portion is provided with a concave portion corresponding to the first convex portion.
  • the base body is provided with a metal insert for hoisting the battery module.
  • the battery module can be hoisted to any desired position.
  • the present application provides a battery module, including the end plate of the first aspect.
  • the present application provides a battery, including: the battery module of the second aspect.
  • the present application provides an electrical device, including: the battery module of the third aspect, where the battery is used to provide electrical energy.
  • a method for manufacturing an end plate comprising: providing a main body part disposed at both ends of the battery module for fixing the battery cells in the battery module; providing a partition , placed in the main body part; and a base is provided, the base is used to fix the output pole of the battery module; wherein, the partition part is used to separate the main body part from the base.
  • FIG. 1 is a schematic structural view of a vehicle in some embodiments of the present application.
  • FIG. 2 is a schematic structural diagram of a battery module in some embodiments of the present application.
  • FIG. 3 is a schematic structural diagram of a battery in some embodiments of the present application.
  • Fig. 4 is a schematic structural view of an end plate of some embodiments of the present application.
  • Fig. 5 is a partially sectional enlarged view of an end plate of some embodiments of the present application.
  • Fig. 6 is a flow chart of the manufacturing method of the end plate of some embodiments of the present application.
  • Vehicle 800 motor 400, controller 300, battery 500, box 600, first housing 601, second housing 602,
  • Battery module 100 battery cell 101, side plate 102, CCS103, output pole 104, upper plate 105,
  • End plate 1 main body 11, base 12, partition 13, groove 15, connection 16, step 17, positive base 141, negative base 143, base body 142, first groove 151, second groove 153 , the third groove 152 , the first partition 131 , the second partition 133 , the third partition 132 , the first recess 15 a, the protrusion 16 a, and the metal insert 18 .
  • connection In the description of this application, it should be noted that, unless otherwise clearly stipulated and limited, the terms “installation”, “connection”, “connection” and “attachment” should be understood in a broad sense, for example, it may be a fixed connection, It can also be detachably connected or integrally connected; it can be directly connected or indirectly connected through an intermediary, and it can be internal communication between two components.
  • connection connection
  • connection connection
  • attachment attachment
  • Multiple appearing in this application refers to more than two (including two), similarly, “multiple groups” refers to more than two groups (including two groups), and “multi-piece” refers to more than two (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, which are not limited in the embodiments of the present application.
  • the battery cell can be in the form of a cylinder, a flat body, a cuboid or other shapes, which is not limited in this embodiment of the present application.
  • Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, square square battery cells and pouch battery cells, which are not limited in this embodiment 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 battery mentioned in this application may include a battery module or a battery pack, and the like.
  • Batteries generally include a case for enclosing one or more battery cells. The box can prevent liquid 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.
  • a battery cell works primarily by moving metal ions between the positive and negative plates.
  • 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 not coated with the positive electrode active material layer protrudes from the current collector coated with the positive electrode active material layer.
  • 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 cobaltate, lithium iron phosphate, ternary lithium or lithium manganate.
  • the negative electrode sheet includes 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 serves as the negative electrode tab.
  • the material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon or silicon.
  • the number of positive pole tabs is multiple and stacked together, and the number of negative pole tabs is multiple and stacked together.
  • the material of the isolation film can be PP or PE.
  • the electrode assembly may be a wound structure or a laminated structure, which is not limited in the embodiment of the present application.
  • the battery module mentioned in the embodiments of the present application includes a plurality of battery cells and a frame structure for fixing the battery cells, wherein the plurality of battery cells are stacked on top of each other.
  • the frame structure includes end plates, which are located at both ends of the battery module, and are used to limit the movement of the battery cells.
  • the frame structure may also include side plates, the end plates and the side plates Secure the connection to clamp the battery.
  • the battery output pole and the output pole base are installed on the end plate, and the electrical signal in the battery module is transmitted to the outside of the battery module through the output pole.
  • the end plate and the output pole base are connected by plugging.
  • the base and the end plate are parts independent of each other. They are manufactured separately and then plugged together for use. There are many parts and multiple mating interfaces. The cost of manufacturing these parts separately is high and there are too many mating interfaces. If there is a large gap between the parts, the parts will become loose due to insufficient bonding strength, and the assembly process will consume a lot of labor costs.
  • the present application provides an end plate integrated with an output pole base, the end plate is used for a battery module, including: a main body, arranged at both ends of the battery module, for fixing the battery module The battery cell; the base, used to fix the output pole of the battery module; and the partition, located in the main body, used to separate the main body and the base. Therefore, under the separation of the partition, the material for making the base can be integrally connected to the main body by injection molding.
  • the matching interface and gap between parts are eliminated, so that The connection between the base and the main body is tighter, and it is no longer necessary to manufacture parts separately, which effectively reduces the manufacturing cost, and, under the action of the partition, the material for making the base will not flow into the partition in the height direction of the end plate during molding Below the position, it is ensured that the manufactured end plate has a good appearance.
  • batteries such as mobile phones, portable devices, notebook computers, battery cars, electric toys, electric tools, electric vehicles, ships and spacecraft, etc.
  • spacecraft include Airplanes, rockets, space shuttles and spaceships, etc.
  • FIG. 1 is a schematic structural diagram of a vehicle 800 according to an embodiment of the present application.
  • the vehicle 800 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 an extended-range vehicle.
  • a motor 400 , a controller 300 and a battery 500 may be provided inside the vehicle, and the controller 300 is used to control the battery 500 to supply power to the motor 400 .
  • the battery 500 may be provided at the bottom or front or rear of the vehicle.
  • the battery 500 can be used for power supply of the vehicle.
  • the battery 500 can be used as the operating power source of the vehicle for the circuit system of the vehicle 800 , for example, for the starting, navigation and working power requirements of the vehicle 800 during operation.
  • the battery 500 can not only be used as an operating power source for the vehicle 800 , but can also be used as a driving power source for the vehicle 800 , replacing or partially replacing fuel oil or natural gas to provide driving power for the vehicle 800 .
  • the battery may include multiple battery cells, wherein the multiple battery cells may be connected in series, in parallel or in parallel, and the hybrid connection refers to a mixture of series and parallel connections. Batteries can also be called battery packs.
  • a plurality of battery cells can be connected in series, parallel or mixed to form a battery module, and then a plurality of battery modules can be connected in series, parallel or mixed to form a battery. That is to say, multiple battery cells can directly form a battery, or form a battery module first, and then form a battery from the battery module.
  • FIG. 2 is a schematic structural diagram of a battery 500 according to an embodiment of the present application.
  • the battery 500 may include a plurality of battery cells 101 .
  • the battery 500 may also include a box body 600 (or called a cover body), the box body 600 is a hollow structure, and a plurality of battery cells 1 are accommodated in the box body 600 .
  • the box body 600 may include a first shell 601 and a second shell 602 , and the first shell 601 and the second shell 602 are fastened together.
  • the shapes of the first casing 601 and the second casing 602 can be determined according to the combined shape of a plurality of battery cells 101 , and each of the first casing 601 and the second casing 602 has an opening.
  • both the first housing 601 and the second housing 602 can be hollow cuboids and one of their faces is an open face, the opening of the first housing 601 and the opening of the second housing 602 are arranged oppositely, and the opening of the first housing 601 and the second housing 601 602 snap together to form a box with a closed chamber.
  • a plurality of battery cells 101 are connected in parallel, in series or in parallel, and placed in a box formed by fastening the first casing 601 and the second casing 602 .
  • the number of battery cells 101 can be set to any value. Multiple battery cells 101 can be connected in series, in parallel or in parallel to achieve greater capacity or power. Since the number of battery cells 101 included in each battery 500 may be large, in order to facilitate installation, the battery cells 101 may be arranged in groups, and each group of battery cells 101 constitutes a battery module 100 . The number of battery cells 101 included in the battery module 100 is not limited, and can be set according to requirements. For example, the battery may include a plurality of battery modules 100, and these battery modules may be connected in series, in parallel or in parallel.
  • FIG. 3 is an exploded view of a battery module 100 according to some embodiments of the present application.
  • the battery module 100 includes a plurality of battery cells 101 and a frame structure for fixing the battery cells 101 , wherein the plurality of battery cells 101 are stacked on each other along the length direction.
  • the frame structure includes end plates 1 , and the end plates 1 are located at both ends of the battery cell 101 along the length direction, and are used to limit the movement of the battery cell 101 along the length direction.
  • the frame structure may further include a side plate 102 and an upper plate 105, the side plate 102 is located on both sides of the battery cell 101 along the width direction, and the side plate is connected to the end plate 1 to form a frame structure; in another preferred embodiment, the frame structure may not be provided with side plates, and the battery cells 101 are stacked and connected by cable ties, and the end plates 1 and the cable ties form the above-mentioned frame structure.
  • the battery module 100 also includes a CCS (Cell Connection System, battery connection system) 103.
  • the CCS 103 includes two output poles 104.
  • the output poles 104 are used to extract the electric energy of the battery module 100.
  • the two output poles 104 are positive output poles and Negative output pole.
  • Fig. 4 is an exploded view of the end plate 1 of some embodiments of the present application.
  • the end plate 1 includes a main body 11 , a base 12 and a partition 13 , the main body 11 is arranged at both ends of the battery module 100 for fixing the battery cells 101 in the battery module 100
  • the base 12 is used to fix the output pole 104 of the battery module 100 ;
  • the base 12 Under the barrier of the partition part 13, the base 12 can be connected by injecting material onto the main body part 11, so as to make the end plate 1 integrated with the function of the output pole base. Due to the function of the partition 13, when the material for making the base 12 is injected into the main body 11, the material will not overflow to the position below the partition 13 in the height direction of the end plate 1, so that the base 12 is smoothly and tightly connected to the main body
  • the part above the partition part 13 in the part 11 can also ensure that the finished end plate 1 has a good and flat appearance, and there will be no burrs and flashes due to material overflow.
  • the end plate 1 of the present application not only integrates the functions of the base, directly reduces the number of parts, but also eliminates the gap between the main body 11 and the base 12.
  • the assembly interface and the gap generated between the parts during assembly make the connection between the main body 11 and the base 12 tighter.
  • the cost of separately manufacturing the main body 11 and the base 12 and the cost of the assembly process can be saved.
  • Partition 13 is generally a plate-shaped sheet made of metal material, such as aluminum sheet, copper sheet, etc., but the material and shape of partition 13 are not limited thereto, as long as it can separate base 12 and main body 11, so that It is sufficient that the material of the base 12 does not enter the position below the partition 13 in the main body 11 .
  • the main body 11 is made of metal material, and/or the base 12 is made of plastic. Since the main body 11 is the part that mainly bears the expansion force from the battery module 100 , the main body 11 made of metal material can guarantee to bear the expansion force and prevent the end plate 1 from being broken.
  • the base 12 can be made of the same metal material as the main body 11 , for example, both the main body 11 and the base 12 are formed by extruding aluminum. In some embodiments, however, base 12 is made of plastic. Compared with the case where the base 12 is also made of metal materials, the use of metal materials is greatly reduced, ensuring low cost.
  • FIG. 5 is an enlarged partial cross-sectional view of the end plate 1 of some embodiments of the present application, showing the state when the base 12 is connected to the main body 11 .
  • the main body 11 includes a groove 15, the partition 13 is located in the groove 15, the base 12 includes a connecting portion 16, and the connecting portion 16 abuts against the partition 13 and is in contact with the partition 13.
  • the main body 11 is fixedly connected.
  • the partition 13 is located in the groove 15, so when the base 12 is connected to the main body 11 by injection molding, the material of the base 12 enters the groove 15, touches the partition 13, and the material in the groove 15 is formed into
  • the connecting portion 16 of the base 12 is fixedly connected to the main body 11 after molding.
  • a step portion 17 is disposed in the groove 15 , and the partition portion 13 abuts against the step portion 17 .
  • the plate-shaped partition portion 13 can be easily placed in the groove 15 .
  • the partition 13 can completely seal the position below the partition 13 , preventing the material from overflowing into the main body 1 when the base 12 is molded.
  • the partition portion 13 is sandwiched between the stepped portion 17 and the connecting portion 16 to become a part of the end plate 1 .
  • the present application is not limited to such a structure, and the partition part 13 can also be integrally formed with the main body part 11 .
  • a step portion 17 is provided at both ends of each groove 15 along the length direction of the end plate 1 , and the two ends of the partition portion 13 along the length direction of the end plate 1 respectively abut against the step portions 17 at both ends.
  • the stepped portions 17 may also be provided at both ends of the groove 15 along the width direction of the end plate 1 , or one stepped portion 17 is formed around the groove 15 , or multiple stepped portions 17 are formed along the surroundings of the groove 15 .
  • the base 12 includes a positive base 141, a negative base 143, and a base body 142.
  • the positive base 141 and the negative base 143 are respectively arranged at both ends of the base body 142 along the length direction of the end plate 1.
  • the positive base 141 , the negative base 143 and the base body 142 are integrally formed.
  • the positive base 141 is used to fix the positive output pole of the battery module 100
  • the negative base 143 is used to fix the negative output pole of the battery module 100
  • the base body 142 is used to fix the CCS103 in the battery module.
  • the positive electrode base, the negative electrode base and the base body are independent components, which are respectively assembled on the end plates, and they are also connected to each other through assembly.
  • the positive base 141, the negative base 143, and the base body 142 are integrally formed into the base 12, which directly reduces the number of parts.
  • Assembling interfaces and gaps making them more tightly connected to each other, preventing loosening and loosening.
  • the groove 15 includes a first groove 151 , a second groove 153 and a third groove 152 respectively corresponding to the positive base 141 , the negative base 143 and the base body 142 .
  • the first groove 151, the second groove 153 and the third groove 152 corresponding to the positive base 141, the negative base 143 and the base body 142 respectively, when the base 12 is molded and connected to the main body 11, the The positive base 141, the negative base 143 and the base body 142 are respectively accurately connected to the predetermined positions of the main body 11, and the arrangement of multiple grooves 15 makes the base 12 and the main body 11 form a structure of multiple connections, which can make the base 12 is more tightly connected to the main body portion 11.
  • the divider 13 includes a first divider 131 , a second divider 133 and a third divider 132 , wherein the first divider 131 is located in the first groove 151 , and the second divider 131 is located in the first groove 151 .
  • the second partition 133 is located in the second groove 153
  • the third partition 132 is located in the third groove 152 .
  • the first partition 131 closes the first groove 151
  • the second partition 133 closes the second groove 153
  • the third partition 132 closes the third groove 152 .
  • the positive pole base 141, the negative pole base 143 and the base of the fixed positive output pole, the negative output pole and the CCS103 The installation position of the main body 142 is also determined according to this requirement.
  • the first partition 131, the second partition 133 and the third partition 132 close the first groove 151, the second groove 153 and the third groove 152 respectively, when the base 12 is molded, the first The installation positions of the partition 131, the second partition 133, and the third partition 132 determine the specific positions of the positive base 141, the negative base 143, and the base body 142 connected to the main body 11 in the height direction, so as to meet the requirements of the battery module 100.
  • the base 12 includes three connecting portions 16, which are respectively located at the bottom of the positive base 141 in the height direction, the bottom of the negative base 143 in the height direction, and the bottom of the base body 142 in the height direction,
  • the three connecting parts 16 extend into the first groove 151, the second groove 153 and the third groove 152, respectively, and respectively abut against the first partition 131, the second partition 133 and the third partition 132 to be with the third partition 132.
  • the main body part 11 is connected.
  • the distance between the third partition 132 and the bottom surface of the main body 11 is greater than the distance between the first partition 131 and the second partition 133 and the main body.
  • the part corresponding to the third partition 132 is the base body 142 for fixing the CCS103.
  • the distance between the third partition 132 and the bottom surface of the main body 11 is set to be greater than the distance between the first partition 131 and the second partition 133 and the bottom surface of the main body 11, so that the formed base 12 can be more compact. It is convenient to connect with output pole 104 and CCS103.
  • the distance between the first partition 131 and the second partition 133 and the bottom surface of the main body 11 is relatively small, so that the positive base 141 and the negative base 143 can penetrate deeper into the main body, thereby strengthening the connection between the two ends of the base 12 and the main body. Bonding strength between parts 11.
  • the groove wall of the groove 15 is provided with a first concave portion, and the connecting portion 16 is provided with a convex portion corresponding to the first concave portion; or the groove wall of the groove 15 is provided with a first convex portion, and the connecting portion 16 is provided with a concave portion corresponding to the first convex portion.
  • the groove wall of the groove 15 is provided with a first concave portion 15 a
  • the connecting portion 16 is provided with a convex portion 16 a corresponding to the first concave portion.
  • the material of the base 12 when the material of the base 12 is injected onto the main body portion 11, the material of the base 12 will naturally flow into the first concave portion 15a, and after molding, it will extend into the first concave portion 15a of the convex portion 16a, and there is almost no gap between the first concave portion 15a and the convex portion 16a. Thereby the connection between the base 12 and the main body 11 is tighter, and the pull-off resistance between the base 12 and the main body 11 is improved. In addition, it is also possible to set the first protrusion on the groove wall of the groove 15.
  • the material of the base 12 is injected onto the main body 11, and the material of the base 12 naturally wraps the first protrusion.
  • the first convex portion corresponds to the concave portion, and there is almost no gap between the first convex portion and the concave portion, which can also make the connection between the base 12 and the main body 11 tighter, and improve the pull-off between the base 12 and the main body 11 resistance.
  • each groove 15 is provided with a first concave portion 15a or a first convex portion
  • each connecting portion 16 is provided with a convex portion 16a corresponding to the first concave portion 15a or a concave portion corresponding to the first convex portion.
  • a first concave portion 15a or a first convex portion can be provided on the inner wall at both ends of the groove 15 in the length direction, and a first concave portion 15a or a first convex portion can be respectively arranged at both ends of each connecting portion 16 in the length direction.
  • the convex portion 16a corresponding to the concave portion 15a or the concave portion corresponding to the first convex portion enables the connecting portion 16 to engage with the groove 15 at both ends, further improving the pull-off resistance between the base 12 and the main body 11 .
  • One first recess 15 a or first protrusion may be formed on the entire circumference of the inner wall of the groove 15 , or a plurality of first recesses 15 a or first protrusions may be formed on the inner wall of the groove 15 .
  • a metal insert 18 is disposed on the base body 142 for hoisting the battery module 100 .
  • a metal insert 18 is embedded at both ends of each base body 142 in the length direction, so that the battery module 100 can be hoisted in a proper position through the four metal inserts 18 on the two end plates 1 .
  • a battery module 100 is also provided, including the above-mentioned end plate 1 .
  • a battery 500 is provided, including the above-mentioned battery module 100 .
  • an electrical device including the battery 500 described above, which is used to provide electrical energy.
  • the electrical device may be the vehicle 800 shown in FIG. 1 , or may be a ship or a spacecraft.
  • the present application also provides a method for manufacturing an end plate.
  • Fig. 6 shows a flow chart of the manufacturing method of the end plate 1 according to one embodiment of the present application.
  • the manufacturing method of the end plate 1 of the present embodiment includes:
  • Step S1 providing a main body 11, which is arranged at both ends of the battery module 100 and used to fix the battery cells 101 in the battery module 100;
  • Step S2 providing a partition 13 and placing it in the main body 11;
  • step S3 the base 12 is provided, and the base 12 is used to fix the output pole 104 of the battery module 100 ; wherein, the partition 13 is used to separate the main body 11 and the base 12 .
  • the main body 11 is first manufactured by a mold of the main body 11, and the manufactured main body 11 includes the above-mentioned groove 15.
  • the manufactured main body 11 also includes a step portion 17, a second concave portion 19, and process the first recess 15a on the groove 15.
  • the partition part 13 is placed on the step part 17 for fixing, so as to cover the bottom of the groove 15 . Then put the main body 11 with the partition 13 fixed into the mold of the injection base 12 , and inject the material of the base 12 .
  • connection part 16 The part of the material of the base 12 that enters the groove 15 forms the connection part 16, the part that enters the first recess 15a forms the first convex part 16a, and the part that enters the second recess 19 forms the second connection part 18, and the final shape is as shown in Figure 4 shaped base 12 .
  • the main body 11 is made of metal material, and the main body 11 is formed by extrusion or die casting.
  • the base 12 is made of plastic material, and the base 12 is formed by injection molding on the main body 11 through the separation effect of the partition 13 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请实施例提供了一种端板、电池模组、电池、用电装置及端板制造方法。端板，用于电池模组，包括：主体部，设置于所述电池模组两端，用于固定所述电池模组中的电池单体；底座，用于固定所述电池模组的输出极；以及分隔部，位于所述主体部内，用于分隔所述主体部与所述底座。本申请实施例的技术方案，能够使端板的主体部与固定输出极的底座紧密地连为一体且保证端板具有良好的外观。

Description

端板、电池模组、电池、用电装置及端板制造方法 技术领域
本申请涉及电池领域，具体涉及一种端板、电池模组、电池、用电装置及端板制造方法。
背景技术
电池模组通常包括多个电池单体、位于多个电池单体两端的端板和位于多个电池单体两侧的侧板，端板与侧板固定连接以将多个电池单体夹紧。电池输出极与输出极底座一起安装在端板上，通过输出极将电池模组内的电信号传送至电池模组外部。
发明内容
本申请实施例提供一种端板、电池模组、电池、用电装置及端板制造方法，能够减少端板与固定输出极的底座之间的装配界面，降低成本，且保证端板具有良好的外观。
第一方面，提供了一种端板，用于电池模组，包括：主体部，设置于所述电池模组两端，用于固定所述电池模组中的电池单体；底座，用于固定所述电池模组的输出极；以及分隔部，位于所述主体部内，用于分隔所述主体部与所述底座。
在本申请实施例的端板中，由于在主体部内具有分隔主体部与底座的分隔部，所以，在分隔部的阻挡作用下，制作底座的材料可以通过注塑的方式连接到主体部上，能够消除底座与主体部之间的装配界面及间隙，使它们的连接更加紧密牢固，还能够避免单独制作底座后再进行装配而产生的成本，并且，底座的材料也不会溢出到主体部中分隔部以下的位置，保证端板整体具有良好、平整的外观。
在一些实施例中，所述主体部由金属材料制成，和/或所述底座由塑胶制成。金属材料制成的主体部强度高，能够抵抗来自电池模组内部的高循环数的膨胀力作用。塑胶制成的底座能够节省端板的制造成本。
在一些实施例中，所述主体部包括凹槽，所述分隔部位于所述凹槽内，所述底座包括连接部，所述连接部抵靠所述分隔部，并与所述主体部固定连接。由于分隔部位于凹槽内，所以在将底座以注塑的方式连接到主体部上时，底座的材料进入凹槽内，触及分隔部，成型后进入凹槽内的部分成为连接部，从而与主体部固定连接。
在一些实施例中，所述凹槽内设置有台阶部，所述分隔部抵靠所述台阶部。通过设置台阶部，并将分隔部抵靠在台阶部上，可以将分隔部容易地设置在凹槽内，方便底座与主体部的连接。
在一些实施例中，所述底座包括正极底座、负极底座及底座本体，所述正极底座和负极底座分别设置在所述底座本体沿所述端板长度方向的两端，所述正极底座、负极底座及底座本体一体成型。与现有技术中正极底座、负极底座及底座本体彼此分离的结构相比，通过使正极底座、负极底座及底座本体一体成型，不仅能够消除装配界面及装配间隙，使连接更加紧密，并且能够降低制造成本。
在一些实施例中，所述凹槽包括分别与所述正极底座、负极底座及底座本体相对应的第一凹槽、第二凹槽及第三凹槽。通过设置分别与正极底座、负极底座及底座本体相对应的第一凹槽、第二凹槽及第三凹槽，能够在将底座成型连接到主体部时，将正极底座、负极底座及底座本体分别精准地连接到主体部的预定位置，并且多个凹槽的设置使底座与主体部之间形成多处连接的结构，可以使底座与主体部的连接更加紧密。
在一些实施例中，所述分隔部包括第一分隔部、第二分隔部以及第三分隔部，其中，所述第一分隔部位于所述第一凹槽内，所述第二分隔部位于 所述第二凹槽内，以及所述第三分隔部位于所述第三凹槽内。由此，第一分隔部封闭第一凹槽，第二分隔部封闭第二凹槽，第三分隔部封闭第三凹槽。由于在不同的电池模组中，对于正输出极、负输出极和CCS的设置位置有不同的需求，所以，固定正输出极、负输出极和CCS的正极底座、负极底座及底座本体的设置位置也根据该需求而定。因此，可以使第一分隔部、第二分隔部以及第三分隔部分别位于第一凹槽、第二凹槽及第三凹槽中的不同位置上，由此，在使底座成型时，能够使正极底座、负极底座及底座本体连接到端板的不同位置上。
在一些实施例中，沿所述主体部高度方向，所述第三分隔部与所述主体部的底面之间的距离大于所述第一分隔部和所述第二分隔部与所述主体部的底面之间的距离。与第三分隔部所对应的部分为用于固定CCS的底座本体，由于CCS通常为位于电池模组顶部的板状的结构，高于输出极所在的位置，因此，将第三分隔部与主体部的底面之间的距离设置成大于第一分隔部和第二分隔部与主体部的底面之间的距离，可以使成型后的底座更方便地与正输出极、负输出极和CCS连接。此外，第一分隔部和第二分隔部与主体部的底面之间的距离较小，可以使正极底座、负极底座更深地进入到主体部中，加强底座两端与主体部之间的结合强度。
在一些实施例中，所述凹槽的槽壁上设置有第一凹部，所述连接部设置有与所述第一凹部对应的凸部；或所述凹槽的槽壁上设置有第一凸部，所述连接部设置有与所述第一凸部对应的凹部。由此，连接部上的凸部或凹部能够与槽壁上的第一凹部或第一凸部互相卡合，使底座与主体部的连接更加紧密。
在一些实施例中，所述底座本体上设置有金属嵌件，用于吊装所述电池模组。由此，可以将电池模组吊装到任何需要的位置。
第二方面，本申请提供了一种电池模组，包括第一方面的端板。
第三方面，本申请提供了一种电池，包括：第二方面的电池模组。
第四方面，本申请提供了一种用电装置，包括：第三方面的电池模组，该电池用于提供电能。
第五方面，提供了一种端板制造方法，包括：提供主体部，所述主体部设置于所述电池模组两端，用于固定所述电池模组中的电池单体；提供分隔部，放置于所述主体部内；以及提供底座，所述底座用于固定所述电池模组的输出极；其中，所述分隔部用于分隔所述主体部与所述底座。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
通过阅读对下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本申请的限制。而且在全部附图中，用相同的附图标号表示相同的部件。在附图中：
图1为本申请一些实施例的车辆的结构示意图；
图2为本申请一些实施例的电池模组的结构示意图；
图3为本申请一些实施例的电池的结构示意图；
图4为本申请一些实施例的端板的结构示意图；
图5为本申请一些实施例的端板的局部剖视放大图；
图6为本申请一些实施例的端板的制造方法的流程图.
具体实施方式中的附图标号如下：
车辆800，马达400，控制器300，电池500，箱体600，第一外壳601，第二外壳602，
电池模组100，电池单体101，侧板102，CCS103，输出极104，上板 105，
端板1，主体部11，底座12，分隔部13，凹槽15，连接部16，台阶部17，正极底座141，负极底座143，底座本体142，第一凹槽151，第二凹槽153，第三凹槽152，第一分隔部131，第二分隔部133，第三分隔部132，第一凹部15a，凸部16a，金属嵌件18。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
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。
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。隔离膜的材质可以为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。
本申请的实施例所提到的电池模组包扩多个电池单体和用于固定电池单体的框架结构，其中，多个电池单体相互堆叠。框架结构包括端板，端板位于电池模组的两端部，用于限制电池单体的运动，同时，在一种具体实施例中，该框架结构还可包括侧板，端板与侧板固定连接以将电池夹紧。电池输出极与输出极底座安装在端板上，通过输出极将电池模组内的电信号传送至电池模组外部。通常，端板与输出极底座通过插接的方式相连。
在这样的结构中，底座与端板是彼此独立的零件，分别制造后插接以配合使用，零件多且具有多个配合界面，分别制造这些零件的成本较高并且配合界面过多，零件之间的间隙较大，零件之间会因为结合强度不够而松动，而且装配过程会耗费很多人力成本。
鉴于此，本申请提供一种集成了输出极底座的端板，该端板用于电池模组，包括：主体部，设置于所述电池模组两端，用于固定所述电池模组中的电池单体；底座，用于固定所述电池模组的输出极；以及分隔部，位于所述主体部内，用于分隔所述主体部与所述底座。因此，在分隔部的分隔作用下，制作底座的材料可以通过注塑的方式一体连接到主体部上，与现有的装配连接的方式相比，消除了零件之间的配合界面和间隙，从而使底座与主体部的连接更加紧密，并且不再需要分别制造零件，有效降低了制造成本，并且，在分隔部的作用下，制作底座的材料在成型时不会流入到端板高度方向上分隔部的位置以下，保证了制造出端板具有良好的外观。
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。
接下来，对本申请的具体实施例进行详细说明。
图1为本申请一个实施例的车辆800的结构示意图。车辆800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。车辆的内部可以设置马达400，控制器300以及电池500，控制器300用来控制电池500为马达400的供电。例如，在车辆的底部或车头或车尾可以设置电池500。电池500可以用于车辆的供电，例如，电池500可以作为车辆的操作电源，用于车辆800的电路***，例如，用于车辆800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500不仅仅可以作为车辆800的操作电源，还可以作为车辆800的驱动电源，替代或部分地替代燃油或天然气为车辆800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。
图2为本申请一个实施例的电池500的结构示意图。电池500可以包括多个电池单体101。电池500还可以包括箱体600(或称罩体)，箱体600为中空结构，多个电池单体1容纳于箱体600内。如图2所示，箱体600可以包括第一外壳601和第二外壳602，第一外壳601和第二外壳602 扣合在一起。第一外壳601和第二外壳602的形状可以根据多个电池单体101组合的形状而定，第一外壳601和第二外壳602均具有一个开口。例如，第一外壳601和第二外壳602均可以为中空长方体且各自的一个面为开口面，第一外壳601的开口和第二外壳602的开口相对设置，并且第一外壳601和第二外壳602相互扣合形成具有封闭腔室的箱体。多个电池单体101相互并联或串联或混联组合后置于第一外壳601和第二外壳602扣合后形成的箱体内。
根据不同的电力需求，电池单体101的数量可以设置为任意数值。多个电池单体101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500中包括的电池单体101的数量可能较多，为了便于安装，可以将电池单体101分组设置，每组电池单体101组成电池模组100。电池模组100中包括的电池单体101的数量不限，可以根据需求设置。例如，电池可以包括多个电池模组100，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为本申请一些实施例的电池模组100的***图。如图3所示，该电池模组100包括多个电池单体101和用于固定电池单体101的框架结构，其中，多个电池单体101沿长度方向相互堆叠。该框架结构包括端板1，且端板1位于电池单体101沿长度方向的两端部，用于限制电池单体101沿长度方向的运动。在一种具体实施例中，该框架结构还可包括侧板102和上板105，侧板102位于电池单体101沿宽度方向的两侧，且该侧板与端板1连接，从而形成框架结构；在另一种优选实施例中，该框架结构可不设置侧板，电池单体101堆叠后，通过扎带连接，该端板1和扎带形成上述框架结构。电池模组100还包括CCS(Cell Connection System，电池连接***)103，CCS103包括两个输出极104，输出极104用于引出电池模组100的电能，两个输出极104分别为正输出极和负输出极。
图4为本申请一些实施例的端板1的***图。如图3、图4所示，端板1包括主体部11、底座12以及分隔部13，主体部11设置于电池模组100的两端，用于固定电池模组中100的电池单体101；底座12用于固定电池模组100的输出极104；分隔部13位于主体部11内，用于分隔主体部11与底座12。
在分隔部13的阻隔下，底座12可通过将材料注塑到主体部11上而实现连接，从而做成集成有输出极底座功能的端板1。由于分隔部13的作用，在向主体部11注塑制作底座12的材料时，材料不会溢出至端板1的高度方向上分隔部13之下的位置，使底座12顺利、紧密地连接到主体部11中分隔部13之上的部分，并且，还能够保证制作完成的端板1具有良好、平整的外观，不会因材料溢出而产生毛刺、溢料现象。与现有技术中将制作完成的底座装配到端板上的结构相比，本申请的端板1不仅集成了底座的功能，直接减少零部件数量，还能够消除主体部11与底座12之间的装配界面以及装配时零件之间产生的间隙，使主体部11与底座12的连接更加紧密。此外，还能够节省分别制作主体部11与底座12的成本，以及节省装配工序所带来的成本。
分隔部13通常为金属材料制成的平板形状的片材，例如为铝片、铜片等，但分隔部13的材料和形状不限于此，只要能起到分隔底座12与主体部11，使底座12的材料不会进入主体部11中分隔部13之下的位置的作用即可。
在一些实施例中，主体部11由金属材料制成，和/或底座12由塑胶制成。由于主体部11是主要承受来自电池模组100内的膨胀力作用的部分，所以，金属材料制作的主体部11可以保证承载膨胀力，避免端板1破碎。
底座12可以使用与主体部11相同的金属材料制成，例如，主体部11与底座12都通过挤铝的方式成型。但在一些实施例中，底座12由塑胶 制成。与同样使用金属材料制作底座12的情况相比，很大程度上减少了金属材料的使用，保证低廉的成本。
图5为本申请一些实施例的端板1的局部剖视放大图，示出底座12与主体部11连接时的状态。在一些实施例中，如图4、图5所示，主体部11包括凹槽15，分隔部13位于凹槽15内，底座12包括连接部16，连接部16抵靠分隔部13，并与主体部11固定连接。分隔部13位于凹槽15内，所以在将底座12以注塑的方式连接到主体部11上时，底座12的材料进入凹槽15内，触及分隔部13，位于凹槽15内的材料成型为底座12的连接部16，在成型后连接部16与主体部11固定连接。
在一些实施例中，如图5所示，凹槽15内设置有台阶部17，分隔部13抵靠台阶部17。通过台阶部17，可以将平板形状的分隔部13容易放置置于凹槽15内。并且，在将底座12连接到主体部11上时，分隔部13得以完全封闭住分隔部13之下的位置，防止使底座12成型时材料溢出到主体部1的内部。端板1制造完成后，分隔部13被夹持在台阶部17与连接部16之间成为端板1的一部分。但本申请不限于这样的结构，分隔部13也可以与主体部11一体成型。
此外，优选在每个凹槽15沿端板1的长度方向的两端各设置一个台阶部17，分隔部13沿端板1的长度方向的两端分别抵靠在两端的台阶部17上。此外，台阶部17也可以设置在凹槽15沿端板1宽度方向的两端，或者沿凹槽15的四周形成一个台阶部17，或者沿凹槽15的四周形成多个台阶部17。在一些实施例中，如图4所示，底座12包括正极底座141、负极底座143及底座本体142，正极底座141和负极底座143分别设置在底座本体142沿端板1长度方向的两端，正极底座141、负极底座143及底座本体142一体成型。
其中，正极底座141用于固定电池模组100的正输出极，负极底座 143用于固定电池模组100的负输出极，底座本体142用于固定电池模组中的CCS103。在现有技术中，正极底座、负极底座及底座本体为分别独立的部件，它们分别装配到端板上，并且它们彼此之间也通过装配的方式连接。而本申请中使正极底座141、负极底座143及底座本体142一体成型为底座12，直接减少了零件数量，由此，不仅能够免除分别制造各零件的过程以及插接装配的过程，还可以消除装配界面和间隙，使它们彼此之间的连接更加紧密，防止松脱落和松动。
在一些实施例中，如图4所示，凹槽15包括分别与正极底座141、负极底座143底座本体142相对应的第一凹槽151、第二凹槽153及第三凹槽152。通过设置分别与正极底座141、负极底座143及底座本体142相对应的第一凹槽151、第二凹槽153及第三凹槽152，能够在将底座12成型连接到主体部11时，将正极底座141、负极底座143及底座本体142分别精准地连接到主体部11的预定位置，并且多个凹槽15的设置使底座12与主体部11之间形成多处连接的结构，可以使底座12与主体部11的连接更加紧密。
在一些实施例中，如图4所示，分隔部13包括第一分隔部131、第二分隔部133以及第三分隔部132，其中，第一分隔部131位于第一凹槽151内，第二分隔部133位于第二凹槽内153，以及第三分隔部132位于第三凹槽152内。由此，第一分隔部131封闭第一凹槽151，第二分隔部133封闭第二凹槽153，第三分隔部132封闭第三凹槽152。由于在不同的电池模组100中，对于正输出极、负输出极和CCS103的设置位置有不同的需求，所以，固定正输出极、负输出极和CCS103的正极底座141、负极底座143及底座本体142的设置位置也根据该需求而定。通过使第一分隔部131、第二分隔部133以及第三分隔132部分别封闭第一凹槽151、第二凹槽153及第三凹槽152，在使底座12成型时，能够通过第一分隔部131、第二分 隔部133以及第三分隔132部的设置位置决定正极底座141、负极底座143及底座本体142连接到主体部11在高度方向上的具***置，以满足电池模组100的各种设计需求。
在一些实施例中，如图4所示，底座12包括三个连接部16，分别位于正极底座141高度方向上的底部、负极底座143高度方向上的底部以及底座本体142高度方向上的底部，三个连接部16并分别伸入第一凹槽151、第二凹槽内153第三凹槽152内，分别抵靠第一分隔部131、第二分隔部133以及第三分隔部132而与主体部11连接。
在一些实施例中，如图4所示，沿主体部11高度方向，第三分隔132部与主体部11的底面之间的距离大于第一分隔部131和所述第二分隔部133与主体部11的底面之间的距离。与第三分隔部132所对应的部分为用于固定CCS103的底座本体142，例如在图3中，CCS103为位于电池模组100顶部的板状的结构，而输出极104则略低一些，因此，将第三分隔部132与主体部11的底面之间的距离设置成大于第一分隔部131和第二分隔部133与主体部11的底面之间的距离，可以使成型后的底座12更方便地与输出极104和CCS103连接。此外，第一分隔部131和第二分隔部133与主体部11的底面之间的距离较小，可以使正极底座141、负极底座143更深地进入到主体部中，加强底座12两端与主体部11之间的结合强度。
在一些实施例中，凹槽15的槽壁上设置有第一凹部，连接部16设置有与第一凹部对应的凸部；或凹槽15的槽壁上设置有第一凸部，连接部16设置有与第一凸部对应的凹部。例如，如图5所示，凹槽15的槽壁上设置有第一凹部15a，连接部16设置有与第一凹部对应的凸部16a。通过凹槽15的槽壁上设置的第一凹部15a，在将底座12的材料注塑到主体部11上时，底座12的材料自然地流入到第一凹部15a，成型后成为伸入第一凹部15a的凸部16a，且第一凹部15a与凸部16a之间几乎不存在缝隙。从而底 座12与主体部11之间的连接更加紧密，提高底座12与主体部11之间的拉脱抵抗力。此外，也可以是在凹槽15的槽壁上设置第一凸部，此时，将底座12的材料注塑到主体部11上，底座12的材料自然地包裹第一凸部，成型后形成与第一凸部对应的凹部，且第一凸部与凹部之间几乎不存在缝隙，也能够使底座12与主体部11之间的连接更加紧密，提高底座12与主体部11之间的拉脱抵抗力。
优选在每个凹槽15中都设置有第一凹部15a或第一凸部，在每个连接部16上都设置有与第一凹部15a对应的凸部16a或者与第一凸部对应的凹部，进一步提高底座12与主体部11之间的拉脱抵抗力。此外，可以在每个凹槽15中，在凹槽15长度方向两端的内壁上各设置一个第一凹部15a或第一凸部，每个连接部16长度方向两端上各设置一个与第一凹部15a对应的凸部16a或者与第一凸部对应的凹部，从而使连接部16在两端与凹槽15形成卡合，进一步提高底座12与主体部11之间的拉脱抵抗力。也可以在凹槽15的内壁的一整周形成一个第一凹部15a或第一凸部，还可以在凹槽15的内壁形成多个第一凹部15a或第一凸部。
在一些实施例中，如图4所示，底座本体142上设置有金属嵌件18，用于吊装电池模组100。例如在每个底座本体142长度方向上的两端各嵌入一个金属嵌件18，由此，可以将电池模组100通过两个端板1上的四个金属嵌件18吊装在合适的位置。
以上，对本申请实施例的端板1进行了说明。
本申请另一方面，还提供一种电池模组100，包括上述的端板1。
本申请的又一方面，还提供一种电池500，包括上述的电池模组100。
本申请的又一方面，还提供一种用电装置，包括上述的电池500，其用于提供电能。可选地，用电装置可以为图1所示的车辆800，也可以是船舶或航天器。
本申请还提供了一种端板制造方法。
图6示出本申请一个实施例的端板1的制造方法的流程图。
如图6所示，本实施例的端板1的制造方法包括：
步骤S1，提供主体部11，主体部设置于电池模组100两端，用于固定电池模组100中的电池单体101；
步骤S2，提供分隔部13，放置于主体部11内；
步骤S3，提供底座12，底座12用于固定电池模组100的输出极104；其中，分隔部13用于分隔主体部11与底座12。
更具体而言，例如，先通过主体部11的模具制造出主体部11，制造出的主体部11包括上述的凹槽15，此外，制造出的主体部11还包括台阶部17、第二凹部19，并且在凹槽15上加工出第一凹部15a。接着，将分隔部13放置于台阶部17上进行固定，以覆盖凹槽15的底部。然后将固定好分隔部13的主体部11放到注塑底座12的模具中，注塑底座12的材料。底座12的材料进入凹槽15的部分形成连接部16，进入第一凹部15a的部分形成第一凸部16a，进入第二凹部19的部分形成第二连接部18，最终成型为图4所示形状的底座12。
在一个优选的实施例中，主体部11由金属材料制成，主体部11通过挤出或压铸成型。
在一个优选的实施例中，所述底座12由塑胶材料制成，底座12通过分隔部13的分隔作用，在主体部11上注塑形成。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各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，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，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范围，其均 应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (16)

  1. 一种端板，用于电池模组，包括：
    主体部，设置于所述电池模组两端，用于固定所述电池模组中的电池单体；
    底座，用于固定所述电池模组的输出极；以及
    分隔部，位于所述主体部内，用于分隔所述主体部与所述底座。
  2. 根据权利要求1所述的端板，其中，所述主体部由金属材料制成，和/或所述底座由塑胶制成。
  3. 根据权利要求1或2所述的端板，其中，
    所述主体部包括凹槽，所述分隔部位于所述凹槽内，所述底座包括连接部，所述连接部抵靠所述分隔部，并与所述主体部固定连接。
  4. 根据权利要求3所述的端板，其中，
    所述凹槽内设置有台阶部，所述分隔部抵靠所述台阶部。
  5. 根据权利要求1-4任一项所述的端板，其中，
    所述底座包括正极底座、负极底座及底座本体，所述正极底座和负极底座分别设置在所述底座本体沿所述端板长度方向的两端，所述正极底座、负极底座及底座本体一体成型。
  6. 根据权利要求5所述的端板，其中，
    所述凹槽包括分别与所述正极底座、负极底座及底座本体相对应的第 一凹槽、第二凹槽及第三凹槽。
  7. 根据权利要求1-6任一项所述的端板，其中，所述分隔部包括第一分隔部、第二分隔部以及第三分隔部，其中，所述第一分隔部位于所述第一凹槽内，所述第二分隔部位于所述第二凹槽内，以及所述第三分隔部位于所述第三凹槽内。
  8. 根据权利要求7所述的端板，其中，沿所述主体部高度方向，所述第三分隔部与所述主体部的底面之间的距离大于所述第一分隔部和所述第二分隔部与所述主体部的底面之间的距离。
  9. 根据权利要求3-8任一项所述的端板，其中，
    所述凹槽的槽壁上设置有第一凹部，所述连接部设置有与所述第一凹部对应的凸部；或
    所述凹槽的槽壁上设置有第一凸部，所述连接部设置有与所述第一凸部对应的凹部。
  10. 根据权利要求2-9任一项所述的端板，其中，
    所述底座本体上设置有金属嵌件，用于吊装所述电池模组。
  11. 一种电池模组，其中，包括根据权利要求1-10任一项所述的电池模组端板。
  12. 一种电池，其中，包括根据权利要求11所述的电池模组。
  13. 一种用电装置，其中，包括：根据权利要求12所述的电池，所述电 池用于提供电能。
  14. 一种端板制造方法，其特征在于，包括：
    提供主体部，所述主体部设置于所述电池模组两端，用于固定所述电池模组中的电池单体；
    提供分隔部，放置于所述主体部内；以及
    提供底座，所述底座用于固定所述电池模组的输出极；
    其中，所述分隔部用于分隔所述主体部与所述底座。
  15. 根据权利要求14所述的制造方法，其中，
    所述主体部由金属材料制成，所述主体部通过挤出或压铸成型。
  16. 根据权利要求14或15所述的制造方法，其中，
    所述底座由塑胶材料制成，所述底座通过分隔部的分隔作用，在所述主体部上注塑形成。
PCT/CN2021/141034 2021-12-24 2021-12-24 端板、电池模组、电池、用电装置及端板制造方法 WO2023115500A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP21968640.9A EP4391209A1 (en) 2021-12-24 2021-12-24 End plate, battery module, battery, electric device, and method for manufacturing end plate
PCT/CN2021/141034 WO2023115500A1 (zh) 2021-12-24 2021-12-24 端板、电池模组、电池、用电装置及端板制造方法
CN202180095009.3A CN116964860A (zh) 2021-12-24 2021-12-24 端板、电池模组、电池、用电装置及端板制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/141034 WO2023115500A1 (zh) 2021-12-24 2021-12-24 端板、电池模组、电池、用电装置及端板制造方法

Publications (1)

Publication Number Publication Date
WO2023115500A1 true WO2023115500A1 (zh) 2023-06-29

Family

ID=86901044

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/141034 WO2023115500A1 (zh) 2021-12-24 2021-12-24 端板、电池模组、电池、用电装置及端板制造方法

Country Status (3)

Country Link
EP (1) EP4391209A1 (zh)
CN (1) CN116964860A (zh)
WO (1) WO2023115500A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015191842A (ja) * 2014-03-28 2015-11-02 株式会社Ｇｓユアサ 組電池およびスペーサ構造体
CN112531299A (zh) * 2020-11-27 2021-03-19 宁德时代新能源科技股份有限公司 一种安装座、电池及用电设备
CN213782214U (zh) * 2020-11-27 2021-07-23 宁德时代新能源科技股份有限公司 一种安装座、电池及用电设备
CN214589171U (zh) * 2021-04-09 2021-11-02 宁德时代新能源科技股份有限公司 电池及用电装置
CN215266598U (zh) * 2021-07-30 2021-12-21 宁德时代新能源科技股份有限公司 电池单体、电池以及用电装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015191842A (ja) * 2014-03-28 2015-11-02 株式会社Ｇｓユアサ 組電池およびスペーサ構造体
CN112531299A (zh) * 2020-11-27 2021-03-19 宁德时代新能源科技股份有限公司 一种安装座、电池及用电设备
CN213782214U (zh) * 2020-11-27 2021-07-23 宁德时代新能源科技股份有限公司 一种安装座、电池及用电设备
CN214589171U (zh) * 2021-04-09 2021-11-02 宁德时代新能源科技股份有限公司 电池及用电装置
CN215266598U (zh) * 2021-07-30 2021-12-21 宁德时代新能源科技股份有限公司 电池单体、电池以及用电装置

Also Published As

Publication number Publication date
CN116964860A (zh) 2023-10-27
EP4391209A1 (en) 2024-06-26

Similar Documents

Publication Publication Date Title
WO2023070290A1 (zh) 电池单体、电池、用电设备、制造电池单体的方法和设备
US20090081539A1 (en) Battery pack
WO2022213400A1 (zh) 电池单体及其制造方法和制造***、电池以及用电装置
CN214254576U (zh) 端盖组件、电池单体、电池及用电装置
US20130229147A1 (en) Stationary electric power system and method for manufacturing stationary electric power system
WO2023023917A1 (zh) 电池单体及其制造方法和制造***、电池以及用电装置
US20230327306A1 (en) Battery cell, battery and electrical apparatus
US20230395952A1 (en) Battery cell, battery and electrical device
WO2023078109A1 (zh) 一种电池冷却结构、电池、用电装置
WO2022199152A1 (zh) 电极组件、电池单体、电池以及用电设备
WO2024032195A1 (zh) 电池单体、电池和用电装置
WO2023197905A1 (zh) 端盖组件、电池单体、电池和用电设备
WO2023160034A1 (zh) 电池箱体上盖、电池箱体、电池及用电设备
WO2023025104A1 (zh) 电池单体、电池以及用电装置
WO2023115500A1 (zh) 端板、电池模组、电池、用电装置及端板制造方法
US20230045904A1 (en) Battery cell, manufacturing method and manufacturing system of same, battery, and electric device
WO2022267602A1 (zh) 电池及用电装置
WO2023082155A1 (zh) 电池单体及其制造方法和制造***、电池以及用电装置
WO2023082150A1 (zh) 电池单体及其制造方法和制造***、电池以及用电装置
WO2023133748A1 (zh) 电池模块、电池、用电设备、制备电池的方法和设备
WO2023004825A1 (zh) 电池单体、电池、用电设备及电池单体的制造方法和设备
WO2023023915A1 (zh) 电池单体及其制造方法和制造***、电池以及用电装置
WO2023000184A1 (zh) 电池单体、电池、用电设备及电池单体的制造方法和设备
WO2023082151A1 (zh) 电池单体及其制造方法和制造***、电池以及用电装置
WO2023115498A1 (zh) 电池及其单体和模组、用电装置、端盖组件及其制造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21968640

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202180095009.3

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2021968640

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2021968640

Country of ref document: EP

Effective date: 20240318