Battery protection devices and solid-state battery components

Abstract

The utility model relates to a battery protection device and a solid-state battery assembly. For the battery protection device, it includes: a pair of protection shells, a guide rail, a connecting through hole, a protection pad, a support member, and a return spring, one end of which is mounted on the bottom wall of the guide rail, and the other end of which abuts the support member. For the solid-state battery assembly, it includes: the above-mentioned battery protection device; a solid-state battery body, which includes a battery shell, an electrolyte layer, a positive plate, and a negative plate. The utility model is conducive to protecting the battery.

Description

Technical Field

[0001] The utility model relates to the field of battery protection, in particular to a battery protection device.

[0002] The utility model also relates to a solid-state battery assembly based on the battery protection device. Background Art

[0003] All-solid-state lithium batteries are the mainstream technology route for the next generation of power batteries, and are also a strategic hotspot that major automakers are competing to accelerate their layout. Specifically, they are composed of positive electrode materials + negative electrode materials and solid electrolytes, while liquid lithium batteries are composed of positive electrode materials + negative electrode materials + electrolytes and separators.

[0004] At present, power batteries are used more and more widely in new energy vehicles, and lithium-ion batteries are the most widely used. With the continuous development of the industry, the requirements for battery performance are also constantly increasing. However, the performance of lithium-ion batteries has approached the development limit, and breakthroughs in energy density and other aspects are more difficult. Solid-state batteries are batteries that use solid electrodes and solid electrolytes. Replacing the liquid electrolyte of lithium-ion batteries with solid electrolytes can greatly improve the energy density of the battery. Therefore, they have broad application prospects and research value.

[0005] For example, in a patent for a solid-state battery (Announcement No.: CN216084938U), the solid-state battery includes: a positive electrode sheet, the surface of which is coated with a positive electrode coating; a negative electrode sheet, the size of which is smaller than that of the positive electrode sheet; an electrolyte layer, which is coated on the surface of the positive electrode coating and is suitable for covering the positive electrode coating; the positive electrode coating, electrolyte layer and negative electrode sheet of the positive electrode sheet are stacked in sequence, and the side of the electrolyte layer away from the positive electrode coating is suitable for contacting the surface of the negative electrode sheet. In daily use, the outer wall of the battery is poorly protected, causing the outer wall of the battery to be damaged in collision with other objects, thereby affecting the safety of the device and reducing the protection of the device. Utility Model Content

[0006] The purpose of the utility model is to provide a battery protection device, which can improve the protection performance of solid-state batteries to ensure the safety of solid-state batteries.

[0007] Another object of the present invention is to provide a solid-state battery which uses the battery protection device to improve safety performance.

[0008] For the technical topic of battery protection device, it includes:

[0009] A pair of protective shells are arranged in a left-right relative spacing, and the upper and lower side plates, front and rear end plates, and back plates of the protective shells enclose a cavity, and the cavity is used to place a battery. The two protective shells sandwich a battery of matching specifications between the two; the upper and lower parts of the front and rear end plates of the protective shells are in a step-like shape, and the step is at least one level, so that the middle parts of the front and rear end plates are convex, and there is a gap between the two relatively convex middle parts;

[0010] The guide rail is formed by blind holes distributed on the vertical side surfaces in the middle of the front and rear end plates of the protective shell, and the blind holes are distributed at intervals up and down on the vertical side surfaces in the middle of the front and rear end plates of the protective shell;

[0011] A connecting through hole is provided on the front and rear end plates and the lower step surface of the protective shell and is connected to the nearest guide rail;

[0012] A protective pad is used to fill the gap between the raised middle parts of the front and rear end plates of a pair of protective shells. A plug hole is provided in the middle of the protective pad, and the plug hole is used for the external wiring terminal to extend into to connect the positive and negative poles of the battery; and connection grooves are provided on the left and right vertical sides of the protective pad;

[0013] The support member has a protruding front end which is embedded in the connecting grooves provided on the left and right vertical sides of the protective pad, and a rear end which slides into the guide rail. The rear end of the support member is also provided with a fixing protrusion extending from the connecting through hole. By moving the fixing protrusion along the connecting through hole, the support member can move along the guide rail.

[0014] A return spring has one end mounted on the bottom wall of the guide rail and the other end abuts against the support member.

[0015] With such a structure, the protective shell provides a protective function. It surrounds the battery on both sides to improve the overall rigidity and strength. The protective shell also adopts a split design, which is easy to disassemble, replace and repair.

[0016] The space reserved between the two protective shells is convenient for connecting the positive and negative poles of the battery;

[0017] During installation, after the protective pad is stuffed between the two protective shells, the return spring pushes the support member into the connecting groove of the protective pad to form a fitting;

[0018] When disassembling, the fixing protrusion extending out of the connecting through hole at the rear end of the operating support member is pressed or pulled to move along the connecting through hole to release the engagement between the support member and the connecting groove, thereby realizing the unlocking function;

[0019] The plug hole in the middle of the protective pad does not affect the wiring;

[0020] Then the battery is fully protected by two protective shells and two protective pads without affecting the battery wiring.

[0021] As a further improvement of the battery protection device, the protective shell is also equipped with:

[0022] The bow-shaped clamping plate spans across the two protective shells, and threaded holes are provided at both ends of the plate. The upper and lower sides of the front and rear end plates of the protective shell are provided with fixing grooves corresponding to the threaded holes. The fixing grooves are provided with internal threads. The threaded holes are penetrated by using connecting bolts and then tightened in the fixing grooves. The recessed part of the bow-shaped clamping plate and the steps of the front and rear end plates of the protective shell form installation holes.

[0023] The first heat sink is inserted into the mounting hole formed by the lower arched clamping plate and the steps below the front and rear end plates of the protective shell, and the arched clamping plate and the steps of the front and rear end plates of the protective shell clamp the first heat sink; the first heat sink is used to dissipate heat in close contact with the bottom wall of the battery shell;

[0024] The second heat sink is inserted into the mounting hole formed by the upper arched clamping plate and the steps above the front and rear end plates of the protective shell. The arched clamping plate and the steps of the front and rear end plates of the protective shell clamp the second heat sink.

[0025] With such a structure, after the steps of the bow-shaped clamping plate and the front and rear end plates of the protective shell form mounting holes, it is convenient to plug and clamp the first heat sink and the second heat sink. The first heat sink and the second heat sink can be close to the battery to achieve heat transfer and play a heat dissipation role.

[0026] As a further improvement of the battery protection device, a plurality of spaced placement grooves are provided on the upper surface of the first heat sink and the lower surface of the second heat sink, a rotating motor is installed in the placement grooves, and a rotating fan blade is installed on the rotor of the rotating motor; a plurality of heat dissipation holes are spaced apart on the first heat sink and the second heat sink.

[0027] With such a structure, the fan blades rotate and the heat dissipation through the heat dissipation holes further enhances the heat dissipation effect.

[0028] As a further improvement of the battery protection device, a temperature sensor and a humidity sensor are installed in the placement groove of the first heat sink; a smoke sensor, a processing element, a signal light and a buzzer are installed on the upper surface of the second heat sink, and the processing element receives monitoring feedback data from the temperature sensor, humidity sensor and smoke sensor to actively control the operation of the signal light and the buzzer.

[0029] With such a structure, the temperature sensor, humidity sensor and smoke sensor can be installed to monitor the temperature, humidity and smoke data, and the processing elements such as MCU and other control chips can realize the early warning functions of signal lights and buzzers.

[0030] As a further improvement of the battery protection device, a plurality of ventilation grilles are provided on the back plate of the protection shell.

[0031] Adopting such a structure can further improve the heat dissipation effect of the battery.

[0032] As a further improvement of the battery protection device, support protrusions are provided at the two corners of the bottom of the front and rear end plates of the protective shell, and a connecting frame is fixedly connected to the bottom of the support protrusions, a driving motor is installed on the top of the connecting frame, the driving motor has a power shaft, and a coupling is provided at the end of the power shaft away from the driving motor, the power shaft is fixedly connected to a drill rod through the coupling, the outer wall of the drill rod is provided with an external thread, the bottom of the drill rod is fixedly connected to a drill bit, the upper end of the drill rod is slidably connected with a gasket and a nut, the nut is located above the gasket, the upper end of the drill rod is fixedly connected with a connecting plate, and the connecting plate is located above the nut; the top of the gasket is fixedly connected with a vertical docking plate, and the top of the docking plate is provided with a slot; the bottom of the connecting plate is fixedly connected with a vertical plug plate; the plug plate is plugged into the slot, and the threaded connection between the plug plate and the slot is connected with a fastening bolt.

[0033] With such a structure, the driving motor drives the drill bit into the installation surface to realize the positioning function. The gasket falls into the installation surface after being released. After the nut is tightened with the gasket, the contact area increases to prevent the drill rod from shifting left and right. The nut is pressed on the gasket, and because the nut is threadedly connected to the drill rod, it can prevent the drill rod from sinking and maintain its installation height.

[0034] The installation method specifically includes the following steps:

[0035] Place the drill bit against the installation surface, then operate the drive motor to drive the power shaft to rotate, thereby driving the drill bit to rotate and cooperate with the external thread on the outer wall of the drill rod to drill the drill rod into the installation surface, and unscrew the fastening bolt from the docking plate; let the gasket fall to the surface of the installation surface; the nut falls on the top of the external thread, and then rotate the nut to the surface of the gasket.

[0036] With this installation method, the gasket and nut are easy to carry and do not need to be carried extra. After the drill is inserted, the cooperation of the gasket and the nut can ensure stability and the drill rod will not shift during use. When encountering bumpy road conditions, the drill rod maintains its installation height and does not lower, so as to reserve some safety space under the battery to prevent the installation surface from convexly deforming after encountering a collision while driving, which will damage the battery.

[0037] For the technical topic of solid-state battery components, it includes:

[0038] The battery protection device mentioned above;

[0039] A solid-state battery body is placed in the cavity of a pair of protective shells, comprising a battery shell, and an electrolyte layer, a positive electrode plate and a negative electrode plate encapsulated on the inner wall of the battery shell, wherein the positive electrode plate and the negative electrode plate are respectively located on both sides of the electrolyte layer; a positive electrode tab is installed on the positive electrode plate, and a negative electrode tab is installed on the negative electrode plate, wherein the positive electrode tab and the negative electrode tab are raised and extend into the battery shell; the front and rear side surfaces of the battery shell are partially raised outward, and corresponding notches are formed in the raised portions for the raised positive electrode tab and the negative electrode tab to extend into, an insulating colloid layer is arranged in the notch, and the positive electrode tab and the negative electrode tab are embedded in the corresponding insulating colloid layer.

[0040] As a further improvement of the solid-state battery component, the electrolyte layer 102 is selected from (PEO) / LiCF3SO3, (PPO) / LiCF3SO3, (EO / MEEGE)) / LiCF3SO3, LiClO4 polymer ion conductor and Li2S-SiS2, Li 0.35 La 0.55 Any one of TiO3, Li2S-GeS2-P2S5 inorganic ion conductors or a mixture of several of them.

[0041] As a further improvement of the solid-state battery assembly, the front and rear sides of the battery casing are partially protruding outward, and the upper and lower surfaces of the protruding portions are provided with multiple groups of embedding grooves. Correspondingly, a protective pad closes one side of the battery casing and is partially concave to form a recessed portion, and the upper and lower inner surfaces of the recessed portion are provided with multiple groups of embedding protrusions, which are adapted to the embedding grooves.

[0042] With such a structure, the battery casing and the protective pad are installed more firmly and provide better protection.

[0043] The utility model can improve the protection performance of the solid-state battery to ensure the safety of the solid-state battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 Schematic diagram of the overall structure of the solid-state battery assembly.

[0045] Figure 2 This is a schematic diagram of the front view structure of a solid-state battery component.

[0046] Figure 3 A schematic diagram of the top view structure of a solid-state battery assembly.

[0047] Figure 4 This is a schematic diagram of the structure of a solid-state battery component from above.

[0048] Figure 5 Schematic diagram of the explosion structure of a solid-state battery component.

[0049] Figure 6 It is a schematic diagram of the overall structure of the connecting mechanism.

[0050] Figure 7 Schematic diagram of the cross-section structure of a solid-state battery component.

[0051] Figure 8 Schematic diagram of the explosion structure of a solid-state battery component.

[0052] Fig. 9 Schematic diagram of the explosion structure of the protective shell.

[0053] Fig.10 Assembly diagram of the mounting mechanism for the solid-state battery assembly.

[0054] Fig.11 A partial breakdown diagram of the solid-state battery assembly installation mechanism.

[0055] 1. Battery body; 101. Battery shell; 102. Electrolyte layer; 103. Positive plate; 104. Positive tab; 105. Negative plate; 106. Negative tab; 107. Insulating colloid layer; 108. Embedding groove; 109. Protective shell; 110. Insertion groove; 111. Protective pad; 112. Embedding protrusion; 113. Insertion hole; 114. Support protrusion; 2. Connecting mechanism; 201. Guide rail; 202. Return spring; 203. Support member; 204. Connecting through hole; 205. Fixing protrusion; 206. Connecting groove; 207. Bow-shaped clamping plate; 208. Threaded hole; 209. Connecting bolt; 210. Fixing groove; 3. Heat sink Structure; 301, first heat sink; 302, rotating motor; 303, rotating fan blades; 304, heat dissipation holes; 305, second heat sink; 306, ventilation grille; 4, monitoring mechanism; 401, temperature sensor; 402, humidity sensor; 403, smoke sensor; 404, processing element; 405, signal light; 406, buzzer; 5, installation mechanism; 501, connecting frame; 502, driving motor; 503, power shaft; 504, coupling; 505, drill rod; 506, external thread; 507, drill bit; 508, gasket; 509, nut; 5010, connecting plate; 5011, docking plate; 5012, slot; 5013, plug-in plate; 5014, fastening bolt. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0057] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0058] Example 1

[0059] like Figure 1-Figure 11 , a battery protection device, comprising:

[0060] A pair of protective shells 109 are arranged in a left-right relative spacing. The upper and lower side plates, front and rear end plates, and back plate of the protective shells 109 enclose a cavity, and the cavity is used to place the battery. The two protective shells 109 sandwich a battery of matching specifications between the two; the upper and lower parts of the front and rear end plates of the protective shells 109 are in a step-like shape, and the step is at least one level, so that the middle parts of the front and rear end plates are convex, and there is a gap between the two relatively convex middle parts;

[0061] The guide rail 201 is formed by blind holes distributed on the vertical side surfaces in the middle of the front and rear end plates of the protective shell 109, and the blind holes are distributed at intervals up and down on the vertical side surfaces in the middle of the front and rear end plates of the protective shell 109;

[0062] The connecting through hole 204 is formed on the upper and lower step surfaces of the front and rear end plates of the protective shell 109 and connected to the nearest guide rail 201;

[0063] A protective pad 111 is used to fill the gap between the raised middle parts of the front and rear end plates of a pair of protective shells 109. A plug hole 113 is provided in the middle of the protective pad 111. The plug hole 113 is used for the external terminal to extend into to connect the positive and negative electrodes of the battery. The protective pad 111 has connecting grooves 206 on the left and right vertical sides.

[0064] The support member 203 has a protruding front end which is embedded in the connecting grooves 206 provided on the left and right vertical sides of the protective pad 111, and a rear end thereof slides into the guide rail 201. The rear end of the support member 203 is also provided with a fixing protrusion 205 extending from the connecting through hole 204. By moving the fixing protrusion 205 along the connecting through hole 204, the support member 203 can move along the guide rail 201.

[0065] One end of the return spring 202 is mounted on the bottom wall of the guide rail 201 , and the other end thereof abuts against the support member 203 .

[0066] With such a structure, the protective shell 109 provides a protective function, and surrounds the battery on both sides to improve the overall rigidity and strength. The protective shell 109 also adopts a split design, which is easy to disassemble, replace and repair.

[0067] The space reserved between the two protective shells 109 is convenient for connecting the positive and negative electrodes of the battery;

[0068] During installation, after the protective pad 111 is filled between the two protective shells 109, the return spring 202 pushes the support member 203 into the connecting groove 206 of the protective pad 111 to form an interlocking fit;

[0069] When disassembling, the fixing protrusion 205 extending from the connecting through hole 204 at the rear end of the operating support member 203 is pressed or pulled to release the engagement between the support member 203 and the connecting groove 206, thereby realizing the unlocking function;

[0070] The plug hole 113 provided in the middle of the protective pad 111 does not affect the wiring;

[0071] Then, the two protective shells 109 and the two protective pads 111 provide all-round protection for the battery without affecting the wiring of the battery.

[0072] In this embodiment, the protective shell 109 is also equipped with:

[0073] The bow-shaped clamping plate 207 spans across the two protective shells 109, and has threaded holes 208 at both ends. The upper and lower sides of the front and rear end plates of the protective shell 109 are provided with fixing grooves 210 corresponding to the threaded holes 208. The fixing grooves 210 are provided with internal threads. The threaded holes 208 are penetrated by using connecting bolts 209 and then tightened in the fixing grooves 210. The recessed portion of the bow-shaped clamping plate 207 and the steps of the front and rear end plates of the protective shell 109 form mounting holes.

[0074] The first heat sink 301 is inserted into the mounting hole formed by the arched clamping plate 207 below and the steps below the front and rear end plates of the protective shell 109. The arched clamping plate 207 and the steps of the front and rear end plates of the protective shell 109 clamp the first heat sink 301. The first heat sink 301 is used to dissipate heat in close contact with the bottom wall of the battery housing;

[0075] The second heat sink 305 is inserted into the mounting hole formed by the upper arcuate clamping plate 207 and the steps above the front and rear end plates of the protective shell 109. The arcuate clamping plate 207 and the steps of the front and rear end plates of the protective shell 109 clamp the second heat sink 305.

[0076] With such a structure, after the steps of the bow-shaped clamping plate 207 and the front and rear end plates of the protective shell 109 form mounting holes, it is convenient to plug and clamp the first heat sink 301 and the second heat sink 305. The first heat sink 301 and the second heat sink 305 can be close to the battery to achieve heat transfer and play a heat dissipation role.

[0077] In this embodiment, a plurality of spaced mounting grooves are provided on the upper surface of the first heat sink 301 and the lower surface of the second heat sink 305, in which the rotating motor 302 is installed, and the rotating fan blades 303 are installed on the rotor of the rotating motor 302; a plurality of heat dissipation holes 304 are spaced apart and distributed on the first heat sink 301 and the second heat sink 305.

[0078] With such a structure, the rotating fan blades 303 rotate, and the heat dissipation through the heat dissipation holes 304 further improves the heat dissipation effect.

[0079] In this embodiment, a temperature sensor 401 and a humidity sensor 402 are installed in the mounting groove of the first heat sink 301; a smoke sensor 403, a processing element 404, a signal light 405 and a buzzer 406 are installed on the upper surface of the second heat sink 305, and the processing element 404 receives monitoring feedback data from the temperature sensor 401, the humidity sensor 402 and the smoke sensor 403 to actively control the operation of the signal light 405 and the buzzer 406.

[0080] With such a structure, the temperature sensor 401, the humidity sensor 402 and the smoke sensor 403 can be installed to monitor the temperature, humidity and smoke data, and the processing element 404 such as the MCU control chip can realize the warning function of the signal light 405 and the buzzer 406.

[0081] In this embodiment, a plurality of ventilation grilles 306 are provided on the back plate of the protective shell 109 .

[0082] Adopting such a structure can further improve the heat dissipation effect of the battery.

[0083] In this embodiment, support protrusions 114 are provided at the two corners of the bottom of the front and rear end plates of the protective shell 109, and a connecting frame 501 is fixedly connected to the bottom of the support protrusion 114. A driving motor 502 is installed on the top of the connecting frame 501. The driving motor 502 has a power shaft 503. A coupling 504 is provided at one end of the power shaft 503 away from the driving motor 502. The power shaft 503 is fixedly connected to a drill rod 505 through the coupling 504. The outer wall of the drill rod 505 is provided with an external thread 506. The bottom of the drill rod 505 is fixedly connected to a drill bit 507. The upper end of the drill rod 505 is slidably connected with a gasket 508 and a nut 509, and the nut 509 is located above the gasket 508. The upper end of the drill rod 505 is fixedly connected with a connecting plate 5010, and the connecting plate 5010 is located above the nut 509; the top of the gasket 508 is fixedly connected with a vertical docking plate 5011, and a slot 5012 is provided on the top of the docking plate 5011; the bottom of the connecting plate 5010 is fixedly connected with a vertical plug-in plate 5013; the plug-in plate 5013 is plugged into the slot 5012, and the plug-in plate 5013 and the slot 5012 are threadedly connected with a fastening bolt 5014.

[0084] With such a structure, the driving motor 502 drills the drill bit 507 into the installation surface to realize the positioning function. The gasket 508 is released and falls into the installation surface. After the nut 509 tightens the gasket 508, the contact area increases to prevent the drill rod 505 from shifting left and right. The nut 509 is pressed on the gasket 508. Because the nut 509 is threadedly connected to the drill rod 505, the drill rod 505 can be prevented from sinking, and its installation height is maintained from being reduced.

[0085] The installation method specifically includes the following steps:

[0086] The drill bit 507 is pressed against the installation surface, and then the driving motor 502 is controlled to drive the power shaft 503 to rotate, thereby driving the drill bit 507 to rotate and cooperate with the external thread 506 on the outer wall of the drill rod 505 to drill the drill rod 505 into the installation surface, and unscrew the fastening bolt 5014 from the docking plate 5011; the gasket 508 falls to the surface of the installation surface; the nut 509 falls above the external thread 506, and then the nut 509 is rotated to the surface of the gasket 508.

[0087] With such an installation method, the gasket 508 and the nut 509 are portable and do not need to be carried extra. After the drill bit 507 is drilled in, the cooperation of the gasket 508 and the nut 509 can ensure stability, and the drill rod 505 does not shift during use. When encountering bumpy road conditions, the drill rod 505 maintains its installation height and does not lower, so as to reserve some safety space under the battery to prevent the installation surface from being deformed inward after encountering a collision while driving, which will damage the battery.

[0088] Example 2

[0089] A solid-state battery assembly comprising:

[0090] The battery protection device mentioned above;

[0091] A solid-state battery body 1 is placed in the cavity of a pair of protective shells 109, and includes a battery shell 101, and an electrolyte layer 102, a positive electrode plate 103 and a negative electrode plate 105 encapsulated on the inner wall of the battery shell 101, the positive electrode plate 103 and the negative electrode plate 105 are respectively located on both sides of the electrolyte layer 102; a positive electrode tab 104 is installed on the positive electrode plate 103, and a negative electrode tab 106 is installed on the negative electrode plate 105, the positive electrode tab 104 and the negative electrode tab 106 are raised and extend into the battery shell 101; the front and rear side surfaces of the battery shell 101 are partially convex outward, and corresponding notches are formed in the convex parts for the protrusions of the positive electrode tab 104 and the negative electrode tab 106 to extend into, and an insulating colloid layer 107 is arranged in the notch, and the positive electrode tab 104 and the negative electrode tab 106 are embedded in the corresponding insulating colloid layer 107.

[0092] In this embodiment, the electrolyte layer 102 is selected from (PEO) / LiCF3SO3, (PPO) / LiCF3SO3, (EO / MEEGE)) / LiCF3SO3, LiClO4 polymer ion conductor and Li2S-SiS2, Li 0.35 La 0.55 Any one of TiO3, Li2S-GeS2-P2S5 inorganic ion conductors or a mixture of several of them.

[0093] In this embodiment, the front and rear sides of the battery housing 101 are partially convex, and the upper and lower surfaces of the convex are provided with multiple groups of embedding grooves 108. Correspondingly, the protective pad 111 closes one side of the battery housing 101 and is partially concave to form a concave portion, and the upper and lower inner surfaces of the concave portion are provided with multiple groups of embedding protrusions 112, which are adapted to the embedding grooves 108.

[0094] With such a structure, the battery housing 101 and the protective pad 111 are installed more firmly and provide better protection.

[0095] Example 3

[0096] like Figure 1-Figure 11As shown, it includes a battery body 1, the outer wall of the battery body 1 is installed with a connecting mechanism 2, the upper and lower parts of the battery body 1 (according to the description of the accompanying drawings, whether it should be modified to upper and lower parts) are installed with heat dissipation mechanisms 3, and the interior of the heat dissipation mechanism 3 is installed with a monitoring mechanism 4; the outer wall of the battery body 1 is provided with a battery shell 101; the inner wall of the battery shell 101 is encapsulated with an electrolyte layer 102, and a positive electrode plate 103 is encapsulated between the inner wall of the battery shell 101 and the outer wall of the electrolyte layer 102, and a positive electrode tab 104 is installed on one side of the positive electrode plate 103, and a negative electrode plate 105 is encapsulated on the side of the outer wall of the electrolyte layer 102 away from the positive electrode plate 103, and a negative electrode tab 106 is installed on one side of the negative electrode plate 105, wherein the user can encapsulate the electrolyte layer 102 on the inner wall of the battery shell 101, and the positive electrode plate 103 and the negative electrode tab 106 are installed. The electrode plates 105 are respectively installed in the battery shell 101, and are connected to the two ends of the outer wall of the internal electrolyte layer 102; and the positive electrode contact 104 and the negative electrode contact 106 are symmetrically fixed on the outer walls of the positive electrode plate 103 and the negative electrode plate 105, respectively, and the positive electrode contact 104 and the negative electrode contact 106 are respectively embedded in the inner wall of the groove formed by the local protrusion of the end face of the battery shell 101. The electrolyte layer 102 may include a polymer ion conductor such as polyethylene oxide (PEO) / LiCF3SO3, polyphenylene ether (PPO) / LiCF3SO3, poly [ethylene oxide-co-2-(2-methoxyethoxy) ethyl glycidyl ether] (P(EO / MEEGE)) / LiCF3SO3, polysiloxane / LiClO4, or a polymer ion conductor such as Li2S-SiS2, Li 0.35 La 0.55 Inorganic ion conductors such as TiO3 (LLTO), Li2S-GeS2-P2S5, or any material suitable for forming a solid-state battery electrolyte layer 102 to separate the positive electrode plate 103 and the negative electrode plate 105 in the device;

[0097] The sides of both ends of the battery casing 101 are partially convex to form notches, and the notches are in the shape of a mouth, and the inner surface of the mouth is the inner wall of the notch. Two groups of insulating colloid layers 107 are installed on the inner wall of the notch, and the insulating colloid layers 107 are annular, and the inner surface of the annular ring is the inner wall of the insulating colloid layer. The two groups of insulating colloid layers 107 are symmetrically distributed on the inner walls of the notches at both ends of the battery casing 101, wherein the user can symmetrically embed the two groups of insulating colloid layers 107 on the inner walls of the notches at both ends of the battery casing 101, and the positive electrode contact 104 and the negative electrode contact 106 are respectively embedded in the inner walls of the two groups of insulating colloid layers 107 to prevent the electrolyte inside the device from leaking.

[0098] A mounting mechanism 5 is provided below the battery body 1, wherein the mounting mechanism 5 facilitates the installation of the solid-state battery. The sides of the two ends of the battery shell 101 are partially convex to form a convex portion, and multiple groups of embedded grooves 108 are provided on the upper and lower outer walls. The multiple groups of embedded grooves 108 are evenly distributed on the upper and lower outer walls of the convex portions of the battery shell 101 at both ends, wherein the inner diameter size of the embedded groove 108 is the same as the outer diameter size of the embedded protrusion 112. Two groups of protective shells 109 are inserted into the left and right outer walls of the battery shell 101. The two groups of protective shells 109 are symmetrically distributed on the outer wall of the battery shell 101. The protective shell 109 has a cavity, and the inner wall of the cavity forms a plug-in groove 110, wherein the inner diameter size of the plug-in groove 110 formed by the inner wall of the cavity of the two groups of protective shells 109 is the same as the outer diameter size of the battery shell 101. The two sets of protective shells 109 can be symmetrically inserted into the side outer walls of the battery shell 101, so that the two sets of protective shells 109 can slide along the outer wall of the battery shell 101 to protect the outer wall of the battery body 1. Two sets of protective pads 111 are inserted into the corresponding positions of the convex parts of the front and rear sides of the battery shell 101. The protective pad 111 is concave, and the upper and lower inner walls of the concave part are fixed with two sets of embedded protrusions 112. The two sets of embedded protrusions 112 are symmetrically distributed on the upper and lower inner walls of the concave part of the protective pad 111. The user can symmetrically set the two sets of embedded protrusions 112 on the inner wall of the concave part of the protective pad 111, so that the embedded protrusions 112 and the protective pad 111 are firmly connected, so that the embedded protrusions 112 on the inner wall of the concave part of the protective pad 111 can be inserted into the battery shell 1 01, the protective pad 111 is firmly connected to the battery shell 101, and the front side outer wall of the protective pad 111 is provided with a plug hole 113, wherein the user can plug in the wiring terminal of the electrical connection line through the plug hole 113 provided on the front side outer wall of the protective pad 111, and the wiring terminals of the two groups of connection lines are respectively connected to the positive electrode contact piece 104 and the negative electrode contact piece 106, and are embedded in the plug hole 113 on the inner wall of the protective pad 111, so that the positive electrode contact piece 104 and the negative electrode contact piece 106 of the device can be protected, and the positive electrode contact piece 104 and the negative electrode contact piece 106 can be prevented from being damaged due to collision, so that the protection of the device is improved, and the bottom outer wall of the protective shell 109 is fixed with two The two groups of support protrusions 114 are symmetrically distributed on the bottom outer wall of the protective shell 109, wherein the user can symmetrically fix the two groups of support protrusions 114 on the bottom outer wall of the protective shell 109, and the battery body 1 can be fixed and isolated on the device through the support protrusions 114 at the bottom of the protective shell 109, so that the protection of the device is improved. The mounting mechanism 5 includes a connecting frame 501 fixedly arranged at the bottom of the support protrusions 114, and a driving motor 502 is installed on the top of the connecting frame 501. The driving motor 502 is provided with a power shaft 503. The power shaft 503 is provided with a coupling 504 at one end away from the driving motor 502. The power shaft 503 is fixedly connected to a drill rod 505 through the coupling 504, and the outer wall of the drill rod 505 is provided with an external thread 506.The bottom of the drill rod 505 is fixedly connected with a drill bit 507, the upper end of the drill rod 505 is slidably connected with a gasket 508 and a nut 509, the upper end of the drill rod 505 is fixedly connected with a connecting plate 5010, the top of the gasket 508 is fixedly connected with a docking plate 5011, the top of the docking plate 5011 is provided with a slot 5012, the bottom of the connecting plate 5010 is fixedly connected with a plug-in plate 5013, the plug-in plate 5013 is plugged into the slot 5012, and the plug-in plate 5013 is fixedly connected to the bottom of the connecting plate 5010. A fastening bolt 5014 is connected to the internal thread of the slot 5012. When the drill rod 505 cooperates with the drill bit 507 to rotate and drill a hole, the gasket 508 is limited on the connecting plate 5010. The connecting plate 5010 is fixedly connected to the drill rod 505. Therefore, the gasket 508 can be limited on the drill rod 505. The nut 509 is limited between the gasket 508 and the connecting plate 5010. This method can prevent the movable gasket 508 from interfering with the nut 509. 9 affects drilling. When the solid-state battery needs to be installed, the user can press the drill bit 507 against an external object, and then operate the drive motor 502 to drive the power shaft 503 to rotate. Because the power shaft 503 is fixedly connected to the drill rod 505 through the coupling 504, the bottom of the drill rod 505 is fixedly connected to the drill bit 507, and then the drill bit 507 is driven to rotate and cooperate with the external thread 506 on the outer wall of the drill rod 505 to drill the drill rod 505 into the external object. Then the user screws the fastening bolt 5014 out of the docking plate 5011 and the plug plate 5013. The gasket 508 will fall to the surface of the external object under the action of gravity, and the nut 509 will fall above the external thread 506. Then the user screws the nut 509 to the surface of the gasket 508, so that the solid-state battery can be fastened and installed under the cooperation of the nut 509 and the gasket 508, which is convenient for the user to quickly and conveniently install the solid-state battery. ,

[0099] The connecting mechanism 2 includes front and rear end plates provided on the protective shell 109, the upper and lower parts of one side of the front and rear end plates form a step shape, so that the middle part is convex, and cavities are distributed at intervals on the upper and lower inner walls of the middle vertical surface, and the cavities form guide rails 201, and multiple groups of guide rails 201 are evenly distributed on the side surfaces of the middle parts of the front and rear end plates of the protective shell 109. A return spring 202 is installed on the inner wall of the guide rail 201, and a support member is inserted at a position of the inner wall of the guide rail 201 near the end of the return spring 202 203, a fixing protrusion 205 is fixed on the outer wall of the rear end of the support member 203, wherein the user can respectively insert multiple groups of support members 203 into the guide rail 201 on the vertical surface of the middle part of the front and rear end plates of the protective shell 109, and the end of the return spring 202 is embedded in the limit block on the inner wall of the guide rail 201, and the front end is abutted against the inner wall of the rear end of the support member 203, and the fixing protrusion 205 is fixed on the outer wall of the rear end of the support member 203, so that the support member 203 can slide along the inner wall of the guide rail 201.

[0100] A plurality of groups of connecting through holes 204 are provided on the outer walls of the upper and lower step surfaces of the front and rear end plates of the protective shell 109, and the plurality of groups of connecting through holes 204 are evenly distributed on the outer walls of the upper and lower step surfaces of the front and rear end plates of the protective shell 109; the outer diameter of the fixing protrusion 205 is the same as the inner diameter of the connecting through hole 204, and the fixing protrusion 205 can be inserted into the inner wall of the connecting through hole 204, so that the staff can control the sliding of the support member 203 on the guide rail 201 by pulling the fixing protrusion 205.

[0101] The outer walls of the left and right end surfaces of the protective pad 111 are provided with multiple groups of connecting grooves 206, and the multiple groups of connecting grooves 206 are evenly distributed on the outer walls of the left and right end surfaces of the protective pad 111, wherein the inner diameter of the connecting grooves 206 is the same as the outer diameter of the support member 203, and the support member 203 inserted in the guide rail 201 can be embedded in the connecting grooves 206 on the outer walls of the left and right end surfaces of the protective pad 111 with the elasticity of the return spring 202, so that the protective shell 109 can be supported on the outer wall of the battery shell 101 through the protective pad 111.

[0102] The outer wall of the protective shell 109 is installed with multiple groups of bow-shaped clamping plates 207, and the multiple groups of bow-shaped clamping plates 207 are evenly distributed on the outer wall of the protective shell 109. Two groups of threaded holes 208 are opened on the top outer walls at both ends of the bow-shaped clamping plates 207. The two groups of threaded holes 208 are symmetrically distributed on the top outer walls at both ends of the bow-shaped clamping plates 207. Connecting bolts 209 are installed on the inner walls of the threaded holes 208, wherein the inner diameter of the threaded holes 208 is the same as the outer diameter of the connecting bolts 209, so that the two groups of connecting bolts 209 can be twisted and rotated in the threaded holes 208 in the bow-shaped clamping plates 207.

[0103] A plurality of sets of fixing grooves 210 are arranged on the outer walls of the front and rear end plates of the protective shell 109, and the plurality of sets of fixing grooves 210 are evenly distributed on the outer walls of the front and rear end plates of the protective shell 109, wherein the inner diameter of the fixing grooves 210 is the same as the outer diameter of the connecting bolts 209, so that the staff can respectively install the plurality of sets of bow-shaped clamping plates 207 on the upper and lower outer wall surfaces of the front and rear end plates of the two sets of protective shells 109, and twist the connecting bolts 209 in the rotating threaded holes 208 into the fixing grooves 210, so that the plurality of sets of bow-shaped clamping plates 207 can firmly connect the two sets of protective shells 109, making the device convenient for the staff to disassemble and install.

[0104] The heat dissipation mechanism 3 includes a first heat dissipation member 301 disposed on the inner side wall of the lower part of the protective shell 109. A plurality of placement grooves are distributed in the first heat dissipation member 301. A plurality of rotating motors 302 are installed in the placement grooves. The plurality of rotating motors 302 are evenly distributed on the inner wall of the placement groove of the first heat dissipation member 301. The rotor of the rotating motor 302 is installed with a rotating fan blade 303. The outer wall of the first heat dissipation member 301 is provided with a plurality of heat dissipation holes 304. The user can insert the first heat dissipation member 301 between the inner side walls of the two groups of protective shells 109. The first heat sink 301 is clamped between the inner walls of the two groups of protective shells 109 via the bow-shaped clamping plate 207 and connected to the internal battery shell 101. The multiple groups of rotating motors 302 installed on the inner wall of the first heat sink 301 are powered on and run, and the inner wall of the rotating fan blades 303 is embedded in the rotor in the rotating motor 302, which can drive the rotation of the rotating fan blades 303, so that the heat generated by the long-term operation of the battery body 1 can be adsorbed and discharged through the multiple groups of heat dissipation holes 304 on the outer wall of the heat dissipation mechanism 3, so that the heat dissipation effect of the device is enhanced.

[0105] A second heat sink 305 is provided on the inner side wall of the protective shell 109 away from the top of the first heat sink 301, and a plurality of groups of air-permeable grilles 306 are provided on the outer side wall of the protective shell 109, and the plurality of groups of air-permeable grilles 306 are evenly distributed on the outer side wall of the protective shell 109. The user can embed the second heat sink 305 into the inner side walls of the two groups of protective shells 109 and clamp them through the arched clamping plate 207, so that the second heat sink 305 can be connected to the outer top wall of the battery housing 101 inside the device. The heat dissipation element inside the second heat sink 305 is the same as the heat dissipation element inside the first heat sink 301. The operation of the second heat sink 305 can export the heat generated by the long-term operation of the battery main body 1 in the device, and the heat generated by the long-term operation of the battery main body 1 can be exported through the plurality of groups of air-permeable grilles 306 on the outer side wall of the protective shell 109, so that the heat generated by the operation of the battery main body 1 can be quickly exported, thereby extending the service life of the device.

[0106] A second heat sink 305 is provided on the inner side wall of the protective shell 109 away from the top of the first heat sink 301, and a plurality of groups of air-permeable grilles 306 are provided on the side outer wall of the protective shell 109, and the plurality of groups of air-permeable grilles 306 are evenly distributed on the side outer wall of the protective shell 109. The user can embed the second heat sink 305 into the inner side walls of the two groups of protective shells 109 and clamp them through the arched clamping plate 207, so that the second heat sink 305 can be connected to the top outer wall of the battery housing 101 inside the device. The internal heat dissipation element of the second heat sink 305 is the same as the internal heat dissipation element of the first heat sink 301. The operation of the second heat sink 305 can extract the heat generated by the long-term operation of the battery main body 1 in the device, and the heat generated by the long-term operation of the battery main body 1 can be extracted through the plurality of groups of air-permeable grilles 306 on the side outer wall of the protective shell 109, so that the heat generated by the operation of the battery main body 1 can be quickly extracted, thereby extending the service life of the device.

[0107] The monitoring mechanism 4 includes a temperature sensor 401 arranged on the inner wall of the top of the first heat sink 301, and a humidity sensor 402 is installed on one side of the temperature sensor 401. The user can respectively install the temperature sensor 401 and the humidity sensor 402 on the inner wall of the placement groove of the first heat sink 301, so that the operation of the temperature sensor 401 and the humidity sensor 402 can monitor the temperature and humidity of the outer wall of the battery body 1 in the device.

[0108] A smoke sensor 403 is installed on the inner wall of the top placement groove of the second heat sink 305, and a processing element 404 is installed on one side of the smoke sensor 403. The processing element 404 can be selected as an MCU. A signal light 405 is installed on the top outer wall of the second heat sink 305, and a buzzer 406 is installed on one side of the signal light 405. The user can install the smoke sensor 403 and the processing element 404 on the inner wall of the second heat sink 305 respectively. The operation of the smoke sensor 403 can monitor the air quality of the battery body 1 in the device. The data monitored by the temperature sensor 401, the humidity sensor 402 and the smoke sensor 403 can be transmitted to the processing element 404. After the monitoring data exceeds the preset standard of the processing element 404, the signal light 405 on the top of the device can be controlled by the processing element 404 to flash and the buzzer 406 to sound an alarm, thereby facilitating the staff to monitor the operation of the battery body 1 and making the device convenient for users to monitor.

[0109] Working principle: The positive electrode tab 104 and the negative electrode tab 106 connected to the electrolyte layer 102 and the positive electrode plate 103 and the negative electrode plate 105 can be respectively embedded in the inner wall of the groove formed by the local protrusion of the two ends of the battery shell 101 of the battery body 1 through two sets of insulating colloid layers 107, and the side outer wall of the battery shell 101 is clamped. The insertion grooves 110 in the two sets of protective shells 109 can be respectively embedded in the side outer wall of the battery shell 101, and the embedding protrusions 112 on the inner walls of the two sets of protective pads 111 can be embedded in the embedding grooves 108 of the protrusions at both ends of the battery shell 101. The positive electrode tab 104 and the negative electrode tab 106 are connected through the insertion holes 113. The protection can be realized by the two sets of support protrusions 114 at the bottom of the protective shell 109 to support and isolate the device, thereby preventing the battery body 1 from being damaged due to collision, thereby improving the protection of the device; the multiple sets of support members 203 in the connecting mechanism 2 can slide in the guide rails 201 of the front and rear end plates of the protective shell 109, and are supported by the return spring 202 connected to the bottom wall of the guide rail 201. The fixed protrusion 205 on the outer wall of the rear end of the support member 203 can move in the connecting through hole 204 on the outer wall of the front and rear end plates of the protective shell 109 as the staff pulls, and the side of the protective pad 111 is inserted by relying on the elasticity of the return spring 202. The protective pad 111 is clamped between the two groups of protective shells 109, and the multiple groups of arched clamping plates 207 can be twisted in the fixing groove 210 through the connecting bolts 209 in the threaded holes 208, so that the connection between the two groups of protective shells 109 is firm, and the device is convenient for the staff to disassemble and install; in the first heat sink 301 and the second heat sink 305 in the heat dissipation mechanism 3 on the inner wall of the side of the two groups of protective shells 109, the power-on operation of the rotating motor 302 can drive the rotation of the rotating fan blade 303, so that the heat generated by the operation of the battery main body 1 can be discharged through the multiple groups of heat dissipation holes 304 on the outer wall, and the heat generated by the operation of the battery main body 1 Heat can be discharged through multiple groups of air-permeable grilles 306 on the side outer wall of the protective shell 109, so that the heat dissipation effect of the device can be improved and the service life of the device can be extended; the operation of the temperature sensor 401, the humidity sensor 402 and the smoke sensor 403 in the monitoring mechanism 4 can monitor the temperature, humidity and air quality of the battery shell 101, and the monitored data can be received by the processing element 404, and the operation of the signal light 405 and the buzzer 406 on the control device can be processed to alarm the staff, so that the device is convenient for the staff to monitor, realizing the functions of improving the protection of a solid-state battery, facilitating disassembly and installation, increasing the service life and facilitating monitoring.

[0110] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For technicians in the technical field to which the present invention belongs, several equivalent substitutions or obvious variations can be made without departing from the concept of the present invention, and the performance or use is the same, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A battery protection device, characterized in that include: A pair of protective shells (109) are arranged in a left-right relative spacing, and the upper and lower side plates, front and rear end plates, and back plate of the protective shells (109) enclose a cavity, and the cavity is used to place a battery, and the two protective shells (109) sandwich a battery of matching specifications between the two; the upper and lower parts of the front and rear end plates of the protective shells (109) are in a step-like shape, and the step is at least one level, so that the middle parts of the front and rear end plates are convex, and there is a gap between the two relatively convex middle parts; The guide rail (201) is formed by blind holes distributed on the vertical side surfaces in the middle of the front and rear end plates of the protective shell (109), and the blind holes are distributed at intervals in the upper and lower parts of the vertical side surfaces in the middle of the front and rear end plates of the protective shell (109); A connecting through hole (204) is provided on the front and rear end plates and the lower step surface of the protective shell (109) and is connected to the nearest guide rail (201); A protective pad (111) is used to fill the gap between the raised middle parts on the front and rear end plates of a pair of protective shells (109); a plug hole (113) is provided in the middle of the protective pad (111); the plug hole (113) is used for an external terminal to extend into to connect the positive and negative electrodes of the battery; and connection grooves (206) are provided on the left and right vertical sides of the protective pad (111); The support member (203) has a protruding front end which is embedded in the connecting grooves (206) provided on the left and right vertical side surfaces of the protective pad (111), and a rear end which slides into the guide rail (201). The rear end of the support member (203) is also provided with a fixing protrusion (205) extending out of the connecting through hole (204). By moving the fixing protrusion (205), the support member (203) can be moved along the guide rail (201); A return spring (202), one end of which is mounted on the bottom wall of the guide rail (201), and the other end of which abuts against the support member (203); The back plate of the protective shell (109) is provided with a plurality of groups of ventilation grilles (306).

2. The battery protection device according to claim 1, characterized in that The protective shell (109) is also equipped with: The bow-shaped clamping plate (207) spans across the two protective shells (109), and has threaded holes (208) at both ends. The upper and lower sides of the front and rear end plates of the protective shell (109) are provided with fixing grooves (210) corresponding to the threaded holes (208). The fixing grooves (210) are provided with internal threads. The threaded holes (208) are penetrated by using connecting bolts (209) and then tightened in the fixing grooves (210); the recessed portion of the bow-shaped clamping plate (207) and the steps of the front and rear end plates of the protective shell (109) form mounting holes; The first heat sink (301) is inserted into a mounting hole formed by the bow-shaped clamping plate (207) below and the steps below the front and rear end plates of the protective shell (109), and the bow-shaped clamping plate (207) and the steps of the front and rear end plates of the protective shell (109) clamp the first heat sink (301); the first heat sink (301) is used to dissipate heat by being in close contact with the bottom wall of the battery housing; The second heat sink (305) is inserted into a mounting hole formed by the upper arched clamping plate (207) and the steps above the front and rear end plates of the protective shell (109), and the arched clamping plate (207) and the steps of the front and rear end plates of the protective shell (109) clamp the second heat sink (305).

3. The battery protection device according to claim 2, characterized in that A plurality of spaced placement grooves are provided on the upper surface of the first heat sink (301) and the lower surface of the second heat sink (305), a rotating motor (302) is installed in the placement grooves, and a rotating fan blade (303) is installed on the rotor of the rotating motor (302); and a plurality of heat dissipation holes (304) are spaced apart on the first heat sink (301) and the second heat sink (305).

4. The battery protection device according to claim 3, characterized in that A temperature sensor (401) and a humidity sensor (402) are installed in the placement groove of the first heat sink (301); a smoke sensor (403), a processing element (404), a signal light (405) and a buzzer (406) are installed on the upper surface of the second heat sink (305); the processing element (404) receives monitoring feedback data from the temperature sensor (401), the humidity sensor (402) and the smoke sensor (403) to actively control the operation of the signal light (405) and the buzzer (406).

5. The battery protection device according to claim 1, characterized in that Support protrusions (114) are provided at two corners of the bottom of the front and rear end plates of the protective shell (109), and a connecting frame (501) is fixedly connected to the bottom of the support protrusion (114). A driving motor (502) is installed on the top of the connecting frame (501). The driving motor (502) has a power shaft (503). A coupling (504) is provided at one end of the power shaft (503) away from the driving motor (502). The power shaft (503) is fixedly connected to a drill rod (505) through the coupling (504). The outer wall of the drill rod (505) is provided with an external thread (506). The bottom of the drill rod (505) is fixedly connected to a drill bit (507). The upper end of the drill rod (505) is provided with a threaded portion (506). A gasket (508) and a nut (509) are slidably connected, and the nut (509) is located above the gasket (508). The upper end of the drill rod (505) is fixedly connected with a connecting plate (5010), and the connecting plate (5010) is located above the nut (509); the top of the gasket (508) is fixedly connected with a vertical docking plate (5011), and a slot (5012) is provided on the top of the docking plate (5011); the bottom of the connecting plate (5010) is fixedly connected with a vertical plugging plate (5013); the plugging plate (5013) is plugged into the slot (5012), and a fastening bolt (5014) is threadedly connected between the plugging plate (5013) and the slot (5012).

6. A solid-state battery assembly, characterized in that include: The battery protection device according to any one of claims 1 to 5; A solid-state battery body (1) is placed in a cavity of a pair of protective shells (109), comprising a battery shell (101), and an electrolyte layer (102), a positive electrode plate (103) and a negative electrode plate (105) encapsulated on the inner wall of the battery shell (101), wherein the positive electrode plate (103) and the negative electrode plate (105) are respectively located on both sides of the electrolyte layer (102); a positive electrode tab (104) is installed on the positive electrode plate (103), and a negative electrode tab (104) is installed on the negative electrode plate (105). The positive electrode contact piece (104) and the negative electrode contact piece (106) are protruding and extend into the battery shell (101); the front and rear side surfaces of the battery shell (101) are partially protruding outward, and corresponding grooves are formed in the protrusions for the protrusions of the positive electrode contact piece (104) and the negative electrode contact piece (106) to extend into, and an insulating gelatin layer (107) is arranged in the groove, and the positive electrode contact piece (104) and the negative electrode contact piece (106) are embedded in the corresponding insulating gelatin layer (107).

7. The solid-state battery assembly according to claim 6, characterized in that The electrolyte layer (102) is selected from (PEO) / LiCF3SO3, (PPO) / LiCF3SO3, (EO / MEEGE)) / LiCF3SO3, LiClO4 polymer ion conductor and Li2S-SiS2, Li 0.35 La 0.55 Any one of TiO3, Li2S-GeS2-P2S5 inorganic ion conductors.

8. The solid-state battery assembly according to claim 6, characterized in that The front and rear sides of the battery housing (101) are partially convex outward, and the upper and lower surfaces of the convex parts are provided with a plurality of groups of embedding grooves (108). Correspondingly, the protective pad (111) seals one side of the battery housing (101) and partially concave inward to form a concave part, and the upper and lower inner surfaces of the concave part are provided with a plurality of groups of embedding protrusions (112), and the embedding protrusions (112) are adapted to the embedding grooves (108).

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