Battery and electric device

Abstract

Provided are a battery (1001) and an electric device, which relate to the technical field of batteries. The battery (1001) comprises a box body (1), battery cells (2) and elastic pads (3), wherein accommodating cavities (1a) are formed in the box body (1); the battery cells (2) are disposed in the accommodating cavities (1a); each of the battery cells (2) comprises a shell (21) and a terminal post (22), and the terminal post (22) is disposed on the side of the shell (21) that is in a first direction; and an elastic pad (3) is disposed on at least one side of the terminal post (22) of at least one battery cell (2) that is in a second direction, wherein the first direction is perpendicular to the second direction. Further provided is an electric device, which comprises a battery (1001) used for supplying electric energy.

Description

A battery and an electrical device

[0001] Cross-references to related applications

[0002] This disclosure is based on and claims priority to Chinese Patent Application No. 202420857807.6, filed on April 24, 2024, entitled “A Battery and an Electric Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of battery technology, and more particularly to a battery and an electrical device. Background Technology

[0004] Batteries are increasingly used in various fields of daily life and production; for example, they are widely used in vehicles such as new energy vehicles. In related technologies, batteries contain individual battery cells, and the terminals of these cells can be damaged by impacts.

[0005] Summary of the Invention

[0006] In view of this, the present disclosure aims to provide a battery and an electrical device that reduces the risk of damage to the battery cell terminals from impact and reduces the risk of battery cell destruction.

[0007] This disclosure provides a battery, including:

[0008] The housing has a cavity.

[0009] A battery cell is disposed within the cavity. The battery cell includes a housing and a terminal post, with the terminal post disposed on one side of the housing along a first direction.

[0010] An elastic pad is provided on at least one side of the terminal post of at least one of the battery cells along a second direction, wherein the first direction is perpendicular to the second direction.

[0011] The battery disclosed herein provides an embodiment in which an elastic pad can provide impact resistance, reducing the risk of damage to the battery cell terminals from impact, and reducing the risk of the battery cell being destroyed.

[0012] In some embodiments, a non-Newtonian fluid is disposed within the elastic pad.

[0013] In this embodiment, a non-Newtonian fluid is disposed within the elastic pad. On the one hand, the battery cell expands during charging and discharging, and the expansion force is usually relatively small, so it does not cause a sharp increase in the viscosity of the non-Newtonian fluid. Thus, the elastic pad filled with the non-Newtonian fluid can undergo compressive deformation to provide expansion space for the battery cell, meeting the expansion space requirements of the battery cell during normal use. On the other hand, when subjected to a large impact force, the viscosity of the elastic pad filled with the non-Newtonian fluid increases, thereby increasing the overall hardness of the elastic pad and providing greater impact resistance, meeting impact resistance requirements and reducing the risk of the battery cell being deformed by impact.

[0014] In some embodiments, the elastic pad includes a base and a partition rib, a storage cavity is formed in the base, and the partition rib is disposed in the storage cavity to divide the storage cavity into at least two isolation chambers, at least one of the isolation chambers containing the non-Newtonian fluid.

[0015] In this embodiment, the partition ribs can provide some support for the elastic pad and absorb some of the impact force; each isolation chamber can constrain the shape and form of the non-Newtonian fluid, which is conducive to the more uniform distribution of the non-Newtonian fluid in the storage cavity and also facilitates the molding of the non-Newtonian fluid.

[0016] In some embodiments, the separator includes at least one bend.

[0017] In this embodiment, when the partition rib is subjected to an impact force from the second direction, the bending position of the partition rib is more likely to undergo elastic deformation, which quickly changes the size of the isolation chamber in the second direction, thereby transferring the impact force to the non-Newtonian fluid inside the isolation chamber. The hardness of the non-Newtonian fluid increases, which plays a good role in resisting impact.

[0018] In some embodiments, the separator rib is elastic.

[0019] In this embodiment, the partition ribs are compressible, and the partition ribs can provide a certain degree of support for the elastic pad and absorb some of the impact force.

[0020] In some embodiments, each of the isolation chambers is provided with a non-Newtonian fluid.

[0021] In this embodiment, the partition ribs divide the relatively large storage cavity into relatively small isolation chambers. In this way, each isolation chamber can constrain the shape and form of the non-Newtonian fluid, which facilitates the more uniform distribution of the non-Newtonian fluid in the storage cavity and also facilitates the molding of the non-Newtonian fluid.

[0022] In some embodiments, the substrate includes a plug and a base shell having at least one filling port, the plug sealing the filling port to collectively define the storage cavity.

[0023] In this embodiment, non-Newtonian fluid can be filled into the base shell through the filling port, and then the filling port can be sealed with a plug. This facilitates the filling of non-Newtonian fluid.

[0024] In some embodiments, there are two filling ports, which are located at both ends of the base shell along its length.

[0025] In this embodiment, the arrangement of the partition ribs along the length of the base shell facilitates fluid filling.

[0026] In some embodiments, the housing is formed with a cavity, and the cavity has the cavity on at least one side along the second direction.

[0027] In this embodiment, the cavity can absorb the deformation caused by impacts from the second direction, which helps protect the battery cells.

[0028] In some embodiments, the elastic pad is disposed within the cavity.

[0029] In this embodiment, the elastic pad is disposed inside the cavity, which facilitates the installation of the elastic pad and helps to enhance protection.

[0030] In some embodiments, at least one wall surface of the cavity along the second direction is formed with a groove, and a portion of the elastic pad is located within the groove.

[0031] In this embodiment, the groove wall can limit and position the elastic pad, reducing the risk of the elastic pad shifting.

[0032] In some embodiments, the housing includes a body forming the cavity, the body including a first plate, and the housing further including a second plate located below the body, the second plate and the first plate together defining the cavity, the first plate and the battery cell being bonded together by an adhesive layer.

[0033] In this embodiment, the cured adhesive layer has a certain strength. The first plate and the battery cell are bonded together by the adhesive layer, which can both fix the battery cell in the cavity and protect the battery cell.

[0034] In some embodiments, the first plate is a flat plate structure, and a portion of the second plate protrudes upward to form a boss, the boss abutting against the first plate.

[0035] In this embodiment, the boss provides some support to the first plate, thereby improving the structural strength of the box.

[0036] In some embodiments, at least two battery cells are laid out in the same plane to form a battery layer, and at least two battery cells in the battery layer are arranged along a third direction to form a battery cell. The terminals of each battery cell in the battery cell have the same orientation, and the terminals of two adjacent battery cells have opposite orientations and a gap. An elastic pad is provided on at least one side of the gap along the second direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0037] In this embodiment, an elastic pad is provided on at least one side of the gap along the second direction, so that the elastic pad can protect the two battery cells opposite the electrode posts.

[0038] In some embodiments, at least two of the battery layers are stacked along the second direction.

[0039] In this embodiment, at least two of the battery layers are stacked along the second direction, which can increase the battery capacity.

[0040] In some embodiments, the battery includes a separator disposed within the cavity, and a battery cell is arranged on each side of each separator along the first direction, with the terminals of the two battery cells on each side of the separator facing opposite directions.

[0041] In this embodiment, the separator can improve structural strength, which is beneficial to protecting the structural stability of the battery cells and the battery.

[0042] In some embodiments, the housing includes a shell and an end cap, with the pole disposed on the end cap.

[0043] In this embodiment, the terminal post is disposed on the end cap to facilitate electrical connection of the battery cells.

[0044] In some embodiments, the elastic pad is provided on the underside of the terminal post of at least one of the battery cells.

[0045] In this embodiment, the risk of individual battery cells being damaged by impacts from below is reduced.

[0046] In some embodiments, the battery cell is placed flat within the cavity.

[0047] In this embodiment, the thickness direction of the battery cell can be aligned with the second direction, with the larger surface area of ​​the battery cell facing the second direction. The thickness direction of the battery cell refers to the stacking direction of the electrode components within the battery cell. This reduces the overall height of the battery.

[0048] This disclosure also provides an electrical device, including a battery as described in any of the above embodiments for providing electrical energy.

[0049] The electrical device provided in this disclosure includes the battery of this disclosure and has the same beneficial effects as the battery. Attached Figure Description

[0050] Figure 1 is a schematic diagram of a battery from one perspective according to some embodiments of the present disclosure;

[0051] Figure 2 is a schematic diagram of the battery in Figure 1 from another perspective;

[0052] Figure 3 is an exploded view of the battery in Figure 2;

[0053] Figure 4 is a schematic diagram of the battery in Figure 1 from another perspective;

[0054] Figure 5 is a cross-sectional view at point AA in Figure 4;

[0055] Figure 6 is an enlarged view of part F in Figure 5;

[0056] Figure 7 is a schematic diagram of an elastic pad provided in some embodiments of this disclosure, wherein the plug seals the base shell;

[0057] Figure 8 is a schematic diagram of the explosion of the elastic pad in Figure 7;

[0058] Figure 9 is a schematic diagram of the elastic pad in Figure 7 from another perspective;

[0059] Figure 10 is a cross-sectional view at point BB in Figure 9;

[0060] Figure 11 is a schematic diagram of a battery mounted on a vehicle chassis according to some embodiments of this disclosure.

[0061] Explanation of reference numerals in the attached drawings: 1. Box body; 11. Cover body; 1a. Cavity; 1b. Hollow cavity; 1c. Groove; 12. First plate; 13. Second plate; 131. Boss; 14. Separator; 2. Battery cell; 21. Outer shell; 22. Terminal post; 3. Elastic pad; 31. Base; 31a. Storage cavity; 32. Separating rib; 31b. Isolation chamber; 311. Base shell; 312. Cover; 1000. Vehicle; 1001. Battery. Detailed Implementation

[0062] The embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this disclosure.

[0063] The various specific technical features and embodiments described in the detailed implementation can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / implementations. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / implementations in this disclosure will not be described separately.

[0064] It should be noted that "first direction", "second direction" and "third direction" are based on the orientation or positional relationship shown in Figures 1 to 6. The first direction is represented by Y, the second direction by Z, and the third direction by X. The first direction Y includes two opposite orientations, the second direction Z includes two opposite orientations (Z1 and Z2), and the first direction Y includes two opposite orientations. It should be understood that these orientation terms are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0065] It should be noted that the terms "comprising," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. The present disclosure will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0066] It should be noted that in the embodiments of this disclosure, "multiple" includes two or more.

[0067] In related technologies, batteries are used in electrical devices, taking vehicles as an example, where the battery can be placed on the vehicle's chassis. For instance, when the second direction is vertical, in some cases, stones or other objects on the road may impact the battery upwards while the vehicle is in motion; in other cases, passengers or other objects inside the vehicle may impact the battery downwards. When the battery is impacted on at least one side along the second direction, the impact force acts on the individual battery cells, easily causing damage to the terminals of the individual cells.

[0068] The present invention provides an elastic pad on at least one side of the terminal post of the battery cell along the second direction. The elastic pad can provide impact resistance, reduce the risk of the terminal post being damaged by impact, and reduce the risk of the battery cell being destroyed.

[0069] Referring to Figures 1 to 3, the battery includes at least one battery cell, which may be housed within a casing. Exemplarily, at least two battery cells can be connected in series, parallel, or a combination thereof, where a combination means that at least two battery cells are connected in both series and parallel configurations. At least two battery cells can be directly connected in series, parallel, or a combination thereof; alternatively, at least two battery cells can first be connected in series, parallel, or a combination thereof to form a battery module, and then at least two battery modules can be connected in series, parallel, or a combination thereof to form a single unit. The battery may also include other structures; for example, it may include a busbar for electrical connection between at least two battery cells.

[0070] A battery cell is the energy storage element of a battery. A battery cell can be a rechargeable battery cell, which refers to a battery cell that can be recharged after being discharged to activate the active materials and continue to be used.

[0071] Battery cells can be lithium-ion cells, sodium-ion cells, sodium-lithium-ion cells, lithium metal cells, sodium metal cells, lithium-sulfur cells, magnesium-ion cells, nickel-metal hydride cells, nickel-cadmium cells, lead-acid cells, etc.

[0072] The battery cell can be cylindrical, prismatic, or other shapes. Prismatic battery cells include prismatic or multi-prismatic cells, such as hexagonal prismatic cells, etc., and this disclosure does not have any particular limitations.

[0073] Electrical devices include, but are not limited to, energy storage devices, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc. Energy storage devices include, but are not limited to, energy storage containers, energy storage cabinets, etc. Taking a vehicle as an example, the battery in this embodiment can be mounted on the vehicle chassis. Referring to Figure 11, a battery 1001 is mounted on the vehicle 1000.

[0074] This disclosure provides a battery comprising a housing 1, a battery cell 2, and an elastic pad 3. The housing 1 has a cavity 1a. The battery cell 2 is disposed within the cavity 1a and includes a housing 21 and a terminal post 22, the terminal post 22 being disposed on one side of the housing 21 along a first direction. At least one side of the terminal post 22 of at least one battery cell 2 is provided with an elastic pad 3 along at least one side of a second direction Z, wherein the second direction Z is perpendicular to the first direction Y.

[0075] Box 1 is a container structure that houses battery cells 2 and other various components.

[0076] Battery cell 2 is an energy storage element that can be used to provide electrical energy.

[0077] The elastic pad 3 is an elastic component that can undergo elastic deformation to absorb kinetic energy.

[0078] The cavity 1a is formed inside the box and is a hollow space structure enclosed by the box wall, which can be used to accommodate components.

[0079] The outer casing 21 is a structural component used to encapsulate and protect the internal chemical components of the battery cell.

[0080] The terminal 22 is a key component that electrically connects the active material inside the battery cell with the external circuit, and it has a conductive function.

[0081] In some embodiments, the second direction Z refers to the spatial direction in the vertical dimension. The second direction can be the up and down direction. When the second direction is the up and down direction, the upper Z1 is the direction pointing to the sky, and the lower Z2 is the direction pointing to the ground.

[0082] The first direction Y is perpendicular to the second direction Z. When the second direction is up or down, the first direction is parallel to the horizontal plane.

[0083] At least one battery cell 2 has an elastic pad 3 disposed on at least one side of its terminal post 22 along the second direction Z. For example, the elastic pad 3 may be disposed on at least one side of the terminal post 22 of one battery cell 2 along the second direction Z; or, for example, the elastic pad 3 may be disposed on at least one side of the terminal post 22 of at least two battery cells 2 along the second direction Z. That is, the elastic pad 3 may be disposed on the terminal post 22 facing Z1 and / or Z2 along the second direction Z.

[0084] As an example, at least one battery cell 2 has an elastic pad 3 provided on the lower side of its terminal post 22. This reduces the risk of the battery cell 2 being damaged by impacts from below.

[0085] The battery provided in this embodiment has, on the one hand, a terminal post 22 disposed on one side of the outer casing 21 along the first direction Y, meaning that the terminal post 22 does not face Z1 or Z2, allowing the terminal post 22 to avoid impact forces along the second direction Z to a certain extent. On the other hand, an elastic pad 3 is capable of elastic deformation to absorb impact forces. At least one side of the terminal post 22 of at least one battery cell 2 is provided with an elastic pad 3 along the second direction Z. Thus, the elastic pad 3 converts the kinetic energy of the impact force into internal energy through elastic deformation, absorbing and dissipating the impact force. In other words, the elastic pad 3 can provide impact resistance, reducing the risk of the terminal post 22 being damaged by impact and reducing the risk of the battery cell 2 being destroyed.

[0086] In some embodiments, the battery cell 2 is placed flat within the cavity 1a. That is, the thickness direction of the battery cell 2 can be aligned with the second direction Z, with the larger surface of the battery cell 2 facing the second direction Z. The thickness direction of the battery cell 2 refers to the stacking direction of the electrode components within the battery cell 2. The two surfaces of the battery cell 2 along its thickness direction are the larger surfaces, which face the second direction Z. For example, taking the second direction Z as the vertical direction, the battery cell 2 is placed flat within the cavity 1a, with its two larger surfaces facing upwards and downwards respectively. The battery cell 10 has a generally horizontally placed, flat structure. This reduces the overall height of the battery.

[0087] In some embodiments, a non-Newtonian fluid is disposed within the elastic pad 3.

[0088] Non-Newtonian fluids are a class of fluids that do not conform to Newton's law of viscosity. Non-Newtonian fluids have the following characteristics: they exhibit low viscosity and are relatively soft when subjected to small or uniform forces, while their viscosity increases sharply when subjected to large or rapid impact forces, exhibiting hardness and impact resistance similar to solids.

[0089] The elastic pad 3 contains a non-Newtonian fluid. On the one hand, the battery cell 2 expands during charging and discharging. The expansion force is usually relatively small and does not cause a sharp increase in the viscosity of the non-Newtonian fluid. Thus, the elastic pad 3 filled with the non-Newtonian fluid can undergo compression deformation to provide expansion space for the battery cell 2, meeting the expansion space requirements of the battery cell 2 during normal use. On the other hand, when subjected to a large impact force, the viscosity of the elastic pad 3 filled with the non-Newtonian fluid increases, thereby increasing the overall hardness of the elastic pad 3, which can provide greater impact resistance, meet impact resistance requirements, and reduce the risk of the battery cell 2 being deformed by impact.

[0090] In some embodiments, the elastic pad 3 includes a base 31 and a partition rib 32. A storage cavity 31a is formed in the base 31, and the partition rib 32 is disposed in the storage cavity 31a to divide the storage cavity 31a into at least two isolation chambers 31b, each isolation chamber 31b containing a non-Newtonian fluid.

[0091] The substrate 31 is the main component of the elastic pad 3, providing necessary support and stability for the entire elastic pad, and has a certain degree of elasticity.

[0092] The storage cavity 31a is a spatial structure formed in the substrate 31, which can be used to contain fluids or some components.

[0093] The partition rib 32 is a structure installed inside the storage cavity 31a. It can separate the storage cavity 31a and also improve the load-bearing capacity of the elastic pad 3.

[0094] The isolation chamber 31b is a smaller chamber separated from the storage cavity 31a by the partition rib 32.

[0095] For example, the partition rib 32 is elastic. In this way, the partition rib 32 is compressible, and the partition rib 32 can both provide a certain degree of support for the elastic pad 3 and absorb part of the impact force.

[0096] The storage cavity 31a is divided into at least two isolation chambers 31b by the partition rib 32. Each isolation chamber 31b contains a non-Newtonian fluid. The partition rib 32 divides the relatively large storage cavity 31a into relatively small isolation chambers 31b. In this way, each isolation chamber 31b can constrain the shape and form of the non-Newtonian fluid, which facilitates the more uniform distribution of the non-Newtonian fluid in the storage cavity 31a and also facilitates the molding of the non-Newtonian fluid.

[0097] In one embodiment, the compressive force of the partition rib 32 is relatively small, which improves the support and helps maintain the shape of the internal fluid, facilitating the installation of the elastic pad 3.

[0098] The specific number and shape of the partition ribs 32 are not limited and can be adjusted according to actual conditions, such as the shape and size of the elastic pad 3. There can be one or more partition ribs 32. One partition rib 32 can divide the storage cavity 31a into two isolation chambers 31b; multiple partition ribs 32 can divide the storage cavity 31a into more than two isolation chambers 31b. As an example, there can be more than three partition ribs 32.

[0099] The partition ribs 32 can extend along the length direction of the base 31, or they can be arranged perpendicular to the length direction of the base 31. As an example, please refer to Figures 9 and 10, where the partition ribs 32 extend along the length direction of the base 31, and at least two partition ribs 32 are spaced apart along the width direction of the base 31.

[0100] In some embodiments, the substrate 31 includes a cap 312 and a base shell 311 having at least one filling port, the cap 312 sealing the filling port to collectively define a storage cavity 31a. That is, non-Newtonian fluid can be filled into the base shell 311 from the filling port, and then the filling port is sealed by the cap 312. This facilitates the filling of non-Newtonian fluid. The cap 312 and the base shell 311 can be detachably connected, allowing the amount of non-Newtonian fluid in the elastic pad 3 to be adjusted as needed.

[0101] There can be one or more filling ports, and correspondingly one or more plugs 312. As an example, referring to Figures 7 and 8, the elastic pad 3 has two filling ports, which are located at both ends of the base shell 311 along its length. In this way, when the partition rib 32 extends along the length of the base shell 311, it facilitates the filling of fluid.

[0102] The material and manufacturing process of the base shell 311 are not specifically limited. As an example, the base shell 311 can be made of plastic material through processes such as extrusion and injection molding, or it can be directly made of hard rubber or aluminum alloy material.

[0103] In some embodiments, the partition rib 32 includes at least one bend. That is, the partition rib 32 may have one bend or multiple bends. The bends may be arranged along the second direction Z, meaning that the partition rib 32 may be bent at any point in the second direction Z, or it may be bent at multiple points in the second direction Z. The multiple bent points of the partition rib 32 may be evenly distributed or unevenly distributed. As an example, please refer to Figures 5 and 6, where the partition rib 32 is bent at two points in the second direction Z.

[0104] The partition rib 32 bends at least one part in the second direction Z. When the partition rib 32 is subjected to an impact force from the second direction Z, the bending position of the partition rib 32 is more likely to undergo elastic deformation, which quickly changes the size of the isolation chamber 31b in the second direction Z, thereby transferring the impact force to the non-Newtonian fluid in the isolation chamber 31b. The hardness of the non-Newtonian fluid increases, which plays a good role in impact resistance.

[0105] In some embodiments, the housing 1 is formed with a cavity 1b, and the cavity 1a has a cavity 1b on at least one side along the second direction Z.

[0106] Cavity 1b is the spatial region formed inside the wall of the cavity in box 1.

[0107] The cavity 1a has a cavity 1b on at least one side along the second direction Z, that is, the cavity 1a has a cavity 1b on any one or both sides along the second direction Z.

[0108] In one embodiment, referring to Figures 5 and 6, the cavity 1a has a cavity 1b on the side facing Z2. The battery cell 2 is placed flat inside the cavity 1a, which has a cavity 1b on the side facing Z2. In other words, the battery cell 2 has a cavity 1b on the side facing Z2. Thus, the cavity 1b can absorb deformation from impacts towards Z2, which helps protect the battery cell 2.

[0109] In one embodiment, cavity 1a has a cavity on the side facing Z1, that is, battery cell 2 has a cavity on the side facing Z1. The cavity can absorb the deformation from the impact facing Z1, which is beneficial to protecting battery cell 2.

[0110] In some embodiments, the elastic pad 3 is disposed within the cavity 1b.

[0111] The elastic pad 3 is disposed within the cavity 1b, and the cavity 1b and the elastic pad 3 together protect the battery cell 2. This facilitates the installation of the elastic pad 3 and enhances protection.

[0112] In some embodiments, at least one wall surface of the cavity 1b along the second direction Z is formed with a groove 1c, and a portion of the elastic pad 3 is located within the groove 1c. The groove wall surface of the groove 1c can limit and position the elastic pad 3, reducing the risk of the elastic pad 3 shifting.

[0113] The groove 1c is a smaller spatial region divided along the second direction Z within the cavity 1b, and is part of the cavity 1b. The wall of the cavity 1b protrudes along the second direction Z to form the groove 1c.

[0114] At least one wall surface is formed with a groove 1c, that is, the cavity 1b has a groove 1c formed on the wall surface facing Z1 and / or facing Z2.

[0115] In one embodiment, a groove is formed on the upper wall surface, that is, the first plate 12 protrudes upward to form a groove with an opening facing downward, and the elastic pad can be placed in the groove.

[0116] In one embodiment, a groove is formed on the lower wall surface, that is, the second plate 13 protrudes downward to form an upward-opening groove, in which the elastic pad can be placed. Referring to Figures 5 and 6, when the second direction Z is the vertical direction, a groove 1c is formed on the wall surface of Z2 below the cavity 1b below the electrode post 22. Part of the elastic pad 3 is located in the groove 1c. In this way, on the one hand, it is convenient to install the elastic pad 3, and on the other hand, it is beneficial to stabilize the position of the elastic pad 3 to better protect the battery cell 2, and can specifically improve the protection of the battery cell 2 electrode post 22.

[0117] In some embodiments, the elastic pad 3 can be bonded to at least one wall surface of the cavity 1b along the second direction Z, for example, by an adhesive layer, including but not limited to structural adhesive, hot melt adhesive, epoxy resin adhesive, etc. As an example, the elastic pad 3 is bonded to the groove wall surface of the groove 1c.

[0118] In some embodiments, the housing 1 includes a body forming a cavity 1a, the body including a first plate 12, the housing also including a second plate 13 located on the lower side of the body, the second plate 13 and the first plate 12 together defining a cavity 1b, and the first plate 12 and the battery cell 2 are bonded together by an adhesive layer.

[0119] The first plate 12 refers to the lower side plate of the main body. The lower side plate belongs to the main body 1a and participates in the enclosure to form the cavity 1a.

[0120] The second plate 13 refers to the protective plate located on the lower side of the main body, which is not part of the main body.

[0121] The second plate 13 and the first plate 12 of the main body together define the cavity 1b. The cavity 1b between the second plate 13 and the first plate 12 can absorb the deformation from the impact towards Z2, which is beneficial to protecting the battery cell 2.

[0122] The cured adhesive layer has a certain strength. The first plate 12 and the battery cell 2 are bonded together by the adhesive layer, which not only fixes the battery cell 2 in the cavity 1a, but also protects the battery cell 2. The adhesive layer includes, but is not limited to, structural adhesive, hot melt adhesive, epoxy resin adhesive, etc.

[0123] In some embodiments, please refer to Figures 5 and 6, the first plate 12 is a flat plate structure, and a portion of the second plate 13 protrudes upward to form a boss 131, which abuts against the first plate 12.

[0124] The boss 131 is a protruding structure formed locally in the second plate 13 and is part of the second plate.

[0125] The boss 131 abuts against the first plate 12, that is, the second plate 13 contacts the first plate 12 through the boss 131. The boss 131 provides a certain support for the first plate 12, thereby improving the structural strength of the box 1.

[0126] The boss 131 can be a continuous elongated strip extending along the third direction X, or it can be formed by at least two protruding structures spaced apart along the third direction X.

[0127] There can be one or more bosses 131, and multiple bosses 131 can be distributed at intervals along the first direction Y.

[0128] In some embodiments, the upper surface of the second plate 13 is recessed to form a groove 1c.

[0129] The second plate 13 can be made of metal, and grooves 1c and bosses 131 can be formed on the second plate 13 by stamping.

[0130] In some embodiments, please refer to Figures 1 to 5. The body includes a middle frame, a cover 11 and a first plate 12. The middle frame has openings on both sides along the second direction Z. The cover 11 closes the opening of the middle frame facing Z1, and the first plate 12 closes the opening of the middle frame facing Z2, so as to jointly define the cavity 1a.

[0131] In some embodiments, please refer to Figures 3 to 5. At least two battery cells 2 are laid out in the same plane to form a battery layer. At least two battery cells 2 in the battery layer are arranged along a third direction X to form a battery unit. The terminals 22 of each battery cell 2 in the battery unit have the same orientation. The terminals 22 of two adjacent battery units are oriented opposite to each other and have a gap. An elastic pad 3 is provided on at least one side of the gap along the second direction Z. The first direction Y, the second direction Z and the third direction X are perpendicular to each other.

[0132] At least two battery cells 2 are laid out in the same plane to form a battery layer. In other words, multiple battery cells 2 in the battery layer can be arranged in more than one direction in the same plane.

[0133] At least two battery cells 2 in a battery layer are arranged along a third direction X to form a battery unit. The terminals 22 of each battery cell 2 in the battery unit have the same orientation. That is, multiple battery cells 2 are arranged along the third direction X to form a battery unit. Multiple battery units can be arranged along a first direction Y to form a battery layer. The terminals 22 of each battery cell 2 in the same battery unit have the same orientation. The third direction X is perpendicular to the first direction Y. That is, the terminals 22 of each battery cell 2 in the same unit are perpendicular to the third direction X.

[0134] The terminals 22 of two adjacent battery cells face each other and have a gap. That is, the terminal 22 of one battery cell faces the terminal 22 of another battery cell, and a certain distance is maintained between them to form a gap. An elastic pad 3 is provided on at least one side of the gap along the second direction Z, so that the elastic pad 3 can protect the two battery cells with opposite terminals 22.

[0135] In one embodiment, when the first plate 12 and the battery cell 2 are bonded together by an adhesive layer, the gap between two adjacent battery cells lacks an adhesive layer. The terminal post 22 of the battery cell 2 is located on both sides of the gap. The elastic pad 3 is provided below the gap Z2 to protect the terminal post 22 of the battery cells 2 of the two adjacent battery cells.

[0136] In some embodiments, at least two battery layers are stacked along the second direction Z. This can increase the battery capacity.

[0137] In one embodiment, at least two battery layers are stacked along the second direction Z, that is, at least two battery cells are stacked along the second direction Z. The terminals 22 of the battery cells stacked along the second direction Z face the same direction. The elastic pad 3 is located below the terminal 22 of the battery cell 2 of the bottommost battery cell. In this way, one elastic pad 3 can protect the two stacked battery cells.

[0138] In some embodiments, the battery includes a separator 14 disposed within a cavity 1a, with a battery cell arranged on each side of each separator 14 along a first direction Y, and the terminals 22 of the two battery cells on each side of the separator facing opposite directions. Thus, the separator 14 can improve structural strength, which is beneficial for protecting the battery cells 2 and the structural stability of the battery.

[0139] In one embodiment, referring to Figures 5 and 6, the separator 14 is perpendicular to the first direction Y, and the two sides of the separator 14 are respectively opposite to the bottom of the two battery cells.

[0140] In one embodiment, referring to Figures 5 and 6, the partition 14 is located on one side of the boss 131 along the second direction Z, which helps to strengthen the structural strength.

[0141] In some embodiments, the housing 21 includes a housing and an end cap, with the terminal post disposed on the end cap. This facilitates electrical connection of the battery cells.

[0142] This disclosure also provides an electrical device including a battery as described in any embodiment of this disclosure for providing electrical energy.

[0143] This disclosure provides a battery comprising a housing 1, a battery cell 2, and an elastic pad 3. The housing 1 has a cavity 1a, and the battery cell 2 is placed flat within the cavity 1a. The battery cell 2 includes a housing 21 and a terminal post 22, with the terminal post 22 disposed on one side of the housing 21 along a first direction Y. At least one terminal post 22 of the battery cell 2 has an elastic pad 3 disposed on a side of a second direction Z2, wherein the second direction Z is perpendicular to the first direction Y.

[0144] The elastic pad 3 includes a base 31 and a partition rib 32. The base 31 includes a cap 312 and a base shell 311 having at least one filling port. The cap 312 seals the filling port to collectively define a storage cavity 31a. The partition rib 32 bends at two locations in the second direction Z and is disposed within the storage cavity 31a to divide the storage cavity 31a into at least two isolation chambers 31b, each isolation chamber 31b containing a non-Newtonian fluid.

[0145] The battery also includes a separator 14 disposed within the cavity 1a. The housing 1 includes a main body forming the cavity 1a and a second plate 13 located below the main body. The second plate 13 and the first plate 12 of the main body together define a cavity 1b. The first plate 12 and the battery cell 2 are bonded together with structural adhesive. A groove 1c is formed on the wall surface of the Z2 below the terminal post 22, and a portion of the elastic pad 3 is located within the groove 1c. The first plate 12 has a flat structure, and a portion of the second plate 13 protrudes along the second direction Z to form a boss 131, which abuts against the first plate 12.

[0146] The battery disclosed herein provides an embodiment in which an elastic pad 3 is provided on the Z2 side of the terminal post 22 of at least one battery cell 2 along a second direction. The elastic pad 3 provides impact resistance, reducing the risk of damage to the terminal post 22 of the battery cell 2 from impact, and reducing the risk of the battery cell 2 being destroyed. Furthermore, by providing a non-Newtonian fluid within the elastic pad 3, the expansion space requirements of the battery cell 2 during normal use can be met. Under the influence of the non-Newtonian fluid, the overall hardness of the elastic pad 3 can be increased when subjected to large impact forces, better meeting the impact resistance requirements of the battery cell 2. The partition ribs 32 provided within the elastic pad 3 provide some support, absorb some impact force, and facilitate a more uniform distribution of the non-Newtonian fluid within the elastic pad 3. Simultaneously, the cavity 1b defined by the first plate 12 and the second plate 13 can absorb some impact deformation, and the groove 1c formed under the cavity 1b serves to limit and position the elastic pad 3. In addition, the boss 131 can improve the structural strength of the housing 1.

[0147] In the description of this specification, the references to "some embodiments," "other embodiments," and "exemplary" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the embodiments disclosed herein. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0148] The various embodiments / implementations provided in this disclosure can be combined with each other without creating contradictions. The above descriptions are merely preferred embodiments of this disclosure and are not intended to limit the scope of this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A battery, comprising: The housing has a cavity. A battery cell is disposed within the cavity. The battery cell includes a housing and a terminal post, with the terminal post disposed on one side of the housing along a first direction. An elastic pad is provided on at least one side of the terminal post of at least one of the battery cells along a second direction, wherein the first direction is perpendicular to the second direction.

2. The battery according to claim 1, wherein, The elastic pad contains a non-Newtonian fluid.

3. The battery according to claim 2, wherein, The elastic pad includes a base and a partition rib. A storage cavity is formed in the base, and the partition rib is disposed in the storage cavity to divide the storage cavity into at least two isolation chambers. At least one of the isolation chambers contains the non-Newtonian fluid.

4. The battery according to claim 3, wherein, The dividing rib includes at least one bent portion.

5. The battery according to claim 3, wherein, The separating ribs are elastic.

6. The battery according to claim 3, wherein, Each of the isolation chambers is equipped with a non-Newtonian fluid.

7. The battery according to claim 3, wherein, The substrate includes a plug and a base shell having at least one filling port, the plug sealing the filling port to collectively define the storage cavity.

8. The battery according to claim 7, wherein, There are two filling ports, which are located at both ends of the base shell along its length.

9. The battery according to any one of claims 1 to 8, wherein, The housing has a cavity, and the cavity has the cavity on at least one side along the second direction.

10. The battery according to claim 9, wherein, The elastic pad is disposed within the cavity.

11. The battery according to claim 10, wherein, The cavity has a groove formed on at least one wall surface along the second direction, and a portion of the elastic pad is located within the groove.

12. The battery according to claim 9, wherein, The housing includes a body forming the cavity, the body includes a first plate, and the housing also includes a second plate located below the body. The second plate and the first plate together define the cavity, and the first plate and the battery cell are bonded together by an adhesive layer.

13. The battery according to claim 12, wherein, The first plate is a flat plate, and a portion of the second plate protrudes upward to form a boss, which abuts against the first plate.

14. The battery according to any one of claims 1 to 13, wherein, At least two battery cells are laid out in the same plane to form a battery layer. At least two battery cells in the battery layer are arranged along a third direction to form a battery cell. The terminals of each battery cell in the battery cell have the same orientation. The terminals of two adjacent battery cells have opposite orientations and a gap. An elastic pad is provided on at least one side of the gap along the second direction. The first direction, the second direction and the third direction are perpendicular to each other.

15. The battery according to claim 14, wherein, At least two of the battery layers are stacked along the second direction.

16. The battery according to claim 14, wherein, The battery includes a separator disposed within the cavity, and a battery cell is arranged on each side of each separator along the first direction, with the terminals of the two battery cells on each side of the separator facing opposite directions.

17. The battery according to any one of claims 1 to 16, wherein, The outer casing includes a housing and an end cap, with the pole post disposed on the end cap.

18. The battery according to any one of claims 1 to 17, wherein, The elastic pad is provided on the lower side of the terminal post of at least one of the battery cells.

19. The battery according to any one of claims 1 to 18, wherein, The battery cell is placed flat inside the cavity.

20. An electrical device comprising a battery according to any one of claims 1 to 19 for providing electrical energy.

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