A stable battery cell and its thermal management module

Abstract

This invention relates to the field of battery cells, specifically a stable battery cell and its thermal management module, comprising a housing for protecting the battery cell, with a protective cover fitted on the top of the housing; a stabilizing mechanism for stabilizing the battery cell housing and providing explosion-proof protection for its interior, the stabilizing mechanism being disposed within the housing; wherein the stabilizing mechanism includes a battery cell assembly, the battery cell assembly being composed of a battery cell body and a housing, a base being fixedly installed at the bottom of the battery cell assembly, the base being fixedly installed at the bottom of the inner cavity of the housing; a No. 3 plate is fixedly connected to the center of the inner cavity of the base. In the event of abnormal gas generation, the gas and liquid in this stable battery cell and its thermal management module are guided to the adsorption plate via a guide arc plate, and the branch-shaped strips assist in guiding the flow to the collection chamber, preventing electrolyte leakage and short circuit; simultaneously, the sliding plate and the extrusion plate work together to push the sealing disc, resealing the aluminum-plastic membrane to prevent continuous gas and liquid leakage.

Description

Technical Field

[0001] This invention relates to the field of battery cell and thermal management technology, specifically to a stable battery cell and its thermal management module. Background Technology

[0002] With the rapid development of new energy technologies, lithium-ion batteries, as core energy storage components, are widely used in electric vehicles, energy storage systems, and other fields. However, battery cells face multiple challenges during charging and discharging, including vibration and shock, internal gas generation, and temperature fluctuations. Existing technologies still have room for improvement in terms of structural stability, explosion-proof performance, and thermal management efficiency.

[0003] Most existing battery cells use a top pressure relief valve design, which directly discharges the gas-liquid mixture during pressure relief, easily causing electrolyte leakage and external short circuits;

[0004] After depressurization, the battery cell cannot automatically restore its seal, and continuous gas production may lead to secondary deflagration. In traditional designs, there is no reset mechanism after the aluminum-plastic film breaks, resulting in a high risk of continuous gas and liquid leakage, which may trigger a chain reaction, especially in energy storage systems. Summary of the Invention

[0005] The present invention provides a stable battery cell and its thermal management module to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stable battery cell, comprising a housing for protecting the battery cell, wherein a protective cover is fitted on the top of the housing;

[0007] A stabilizing mechanism is used to stabilize the battery cell housing and to provide explosion-proof protection for its interior. The stabilizing mechanism is disposed within the housing.

[0008] The stabilizing mechanism includes a battery cell assembly, which consists of a battery cell body and a housing. A base is fixedly installed at the bottom of the battery cell assembly, and the base is fixedly installed at the bottom of the inner cavity of the housing.

[0009] A No. 3 plate is fixedly connected to the center of the inner cavity of the base, and a round hole is opened in the center of the No. 3 plate. A sleeve rod is fitted into the center of the No. 3 plate, and a No. 5 plate is fixedly connected to the end of the sleeve rod away from the No. 3 plate.

[0010] A fitting rod is provided at the end of the No. 3 plate away from the sleeve rod. The fitting rod is sleeved with the sleeve rod, and the end of the fitting rod away from the No. 3 plate is fixedly connected to the No. 4 plate, wherein the sleeve rod and the fitting rod are fitted together.

[0011] Preferably, both ends of the battery cell assembly are symmetrically provided with G-shaped tubes, the bottom of the G-shaped tubes are provided with grooves, and sliding plates are slidably adapted in the grooves. Three flexible plates are symmetrically connected to both sides of the sliding plates, wherein the three flexible plates are used to prevent gas and liquid from flowing out.

[0012] Preferably, the bottom of the sliding piece is fixedly connected to the fourth plate, and the fourth plate, carrying the interlocking rod, is sleeved with the connecting rod by the pushing of the sliding piece by gas and liquid.

[0013] Preferably, the inside of the G-shaped tube has a groove, and a sliding plate is adapted to slide inside the groove. A return spring and the extrusion plate are fixedly connected to the top of the sliding plate. The end of the return spring away from the sliding plate is fixedly connected to the inner wall of the G-shaped tube. The extrusion plate passes through the side wall of the G-shaped tube and extends outward.

[0014] Preferably, a transition tube is fixedly connected to the top end of the G-shaped tube, and the end of the transition tube away from the G-shaped tube is connected to the outside of the cell assembly. A collection chamber is fixedly installed at the bottom of the inner cavity of the G-shaped tube, and the collection chamber is used to collect and process the sprayed electrolyte.

[0015] A guide arc plate is fixedly connected to the bottom of the inner cavity of the G-shaped tube.

[0016] Preferably, a light rod is fixedly connected to the outside of the battery cell assembly, and a No. 6 plate is fixedly connected to the end of the light rod away from the battery cell assembly. A spring telescopic rod is fixedly installed at the center of the outside of the No. 6 plate, and a sealing disc is fixedly connected to the end of the spring telescopic rod away from the No. 6 plate.

[0017] Preferably, the enclosed disc is inserted into the surface of the light rod and slides along the outer side of the light rod. A short strip is fixedly connected to the end of the enclosed disc away from the elastic telescopic rod, and an aluminum-plastic film is fixedly connected to the end of the short strip away from the enclosed disc.

[0018] Preferably, a No. 4 toughness sheet is fixedly connected to the outside of the G-shaped tube, the bottom of the No. 4 toughness sheet is extruded and adapted to the extrusion plate, and an arc-shaped strip is extruded and adapted to the top of the extrusion plate, the arc-shaped strip being fixedly connected to the bottom of the closed disc.

[0019] Preferably, an adsorption sheet is fixedly installed inside the G-shaped tube, wherein the adsorption sheet is used to absorb and adsorb the electrolyte, and a tree branch is fixedly connected to the outside of the adsorption sheet, and a guide groove is opened on the outside of the tree branch.

[0020] The tree branches are used to guide the electrolyte.

[0021] A thermal management module includes: a thermal management mechanism for controlling and managing the temperature inside the housing, and disposed outside the housing;

[0022] A drainage mechanism is used to discharge water from inside the thermal management unit to the outside. The drainage mechanism is located outside the outer casing and connected to the thermal management unit.

[0023] Preferably, the thermal management mechanism includes a No. 1 plate, which is fixedly installed on the outside of the outer shell. A hydraulic rod is fixedly installed inside the No. 1 plate. A connecting strip is fixedly connected to the outside of the output end of the hydraulic rod. A flow control plate is symmetrically connected to both ends of the connecting strip.

[0024] A temperature sensor is installed inside the outer casing, and the temperature sensor controls the hydraulic rod via a control terminal.

[0025] Preferably, a heat dissipation pipe is fixedly installed inside the outer casing, and an outer connecting pipe is fixedly installed at both ends of the heat dissipation pipe. A groove is opened on the outer side of the outer connecting pipe, and a sealing piece is fixedly connected in the groove. At the same time, the groove is fitted with the flow control plate to control the flow area of ​​the coolant.

[0026] Preferably, the drainage mechanism includes a drainage pipe, which is fixedly installed on the outside of the outer casing and connected to the heat dissipation pipe. A U-shaped plate is inserted into the outside of the drainage pipe, wherein the U-shaped plate is used to block the drainage pipe.

[0027] A bent rod is fixedly connected to the end of the U-shaped plate away from the drain pipe. Two sealing plates are fixedly connected to both sides of the bent rod. The end of the two sealing plates away from the bent rod is fixedly connected to the outer shell. A plate number two is fixedly connected to the end of the bent rod away from the U-shaped plate. The plate number two is fixedly connected to the plate number five.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. The stabilizing mechanism, through the interlocking design of the base, No. 3 plate, socket rod, and insert rod, forms a rigid support structure with mechanical linkage. When the battery cell is subjected to vibration or external impact, the precise engagement of the socket rod and insert rod can limit the displacement of the battery cell assembly, preventing internal electrodes or circuits from loosening or breaking due to shaking, thus improving the structural reliability of the battery cell during transportation and operation. It reduces component damage caused by vibration, enhances overall stability, and reduces safety hazards caused by structural loosening.

[0030] 2. The G-shaped tube integrates a sliding plate, a No. 3 toughness plate, an adsorption plate, and a flow guiding assembly to achieve multi-level protection of "pressure relief-flow guiding-sealing". In case of abnormal gas generation, the gas and liquid are guided to the adsorption plate via the guide arc plate, and the branch-shaped strips assist in guiding the flow to the collection chamber, preventing electrolyte leakage and short circuits. Simultaneously, the sliding plate and the extrusion plate work together to push the sealing disc, resealing the aluminum-plastic diaphragm to prevent continuous gas and liquid leakage. This tiered treatment of abnormal gas and liquid prevents short circuits, reduces the risk of explosion through secondary sealing, and improves safety.

[0031] 3. The thermal management system monitors the temperature in real time using temperature sensors, and a hydraulic rod drives a flow control plate to dynamically adjust the coolant flow rate: maintaining moderate heat dissipation when the temperature is normal; increasing the flow rate to accelerate cooling when the temperature rises; and reducing the flow rate to avoid overcooling when the temperature drops. This precise control of the cell temperature within the optimal range (20℃-30℃) improves charge and discharge performance, slows down capacity decay, and reduces the risk of thermal runaway.

[0032] 4. The venting mechanism is mechanically linked with the stabilizing mechanism and the thermal management mechanism. When the internal pressure of the battery cell increases, the No. 5 board pulls the bending rod to open the venting pipe, discharging coolant to reduce the pressure of the thermal management system and assisting in releasing the internal pressure of the battery cell. Multiple modules work together to cope with extreme operating conditions, rapidly releasing pressure and cooling down to prevent damage to the battery cell from high temperature and high pressure, achieving comprehensive safety protection. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the external structure of a stable battery cell and its thermal management module according to the present invention.

[0034] Figure 2 This is a schematic diagram of the overall internal structure of the device of the present invention.

[0035] Figure 3 This is a schematic diagram of the thermal management mechanism of the present invention.

[0036] Figure 4 This is a cross-sectional schematic diagram of the thermal management mechanism of the present invention.

[0037] Figure 5 This is a schematic diagram of the leakage mechanism of the present invention.

[0038] Figure 6 This is a schematic diagram of the internal structure of the leakage mechanism of the present invention.

[0039] Figure 7 This is a schematic diagram of the external structure of the stabilizing mechanism of the present invention.

[0040] Figure 8 This is a cross-sectional structural diagram of the stabilizing mechanism of the present invention.

[0041] Figure 9 This is a schematic diagram of the full cross-sectional structure of the stabilizing mechanism of the present invention.

[0042] Figure 10 This is a cross-sectional view of the G-shaped tube of the present invention.

[0043] Figure 11 This is a schematic diagram of the external structure of the G-shaped tube of the present invention.

[0044] Figure 12 This is a schematic diagram of the external structure of the adsorption sheet of the present invention.

[0045] In the picture:

[0046] 1. Outer shell;

[0047] 2. Protective cover;

[0048] 3. Thermal management mechanism; 31. Plate No. 1; 32. Hydraulic rod; 33. Connecting strip; 34. Flow control plate; 35. External pipe; 36. Sealing plate No. 1; 37. Temperature sensor; 38. Heat dissipation pipe;

[0049] 4. Drainage mechanism; 41. Drainage pipe; 42. U-shaped plate; 43. Bending rod; 44. No. 2 sealing plate; 45. No. 2 plate;

[0050] 5. Stabilizing mechanism; 51. Battery cell assembly; 52. Base; 53. Plate No. 3; 54. Connecting rod; 55. Inserting rod; 56. Plate No. 4; 57. Plate No. 5; 58. Sliding piece; 59. No. 3 flexible piece; 50. Slide plate; 501. Return spring; 502. Extrusion plate; 503. Smooth rod; 504. Plate No. 6; 505. Elastic telescopic rod; 506. Enclosed disc; 507. Short strip; 508. Aluminum-plastic film; 509. Arc strip; 500. No. 4 flexible piece; 50A. Guide arc piece; 50B. Collection bin; 50C. Adsorption piece; 50D. Branch strip; 50E. Flow guide groove; 50F. Transition tube; 50G. G-shaped tube. Detailed Implementation

[0051] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0052] Please see Figures 1 to 12 The present invention provides a technical solution:

[0053] Example 1, such as Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown,

[0054] The stabilizing mechanism 5, as the core support module of the battery cell, incorporates the anti-vibration theory and dynamic load transfer principle from mechanical engineering into its structural design. The battery cell assembly 51 is fixed to the bottom of the inner cavity of the outer shell 1 via the base 52, forming a dual support system of "base-outer shell". The base 52 is installed at the bottom of the inner cavity of the outer shell 1. The center of plate 53 in base 52 is embedded with a sleeve rod 54. One end of the sleeve rod 54 is connected to plate 57. On the other side of plate 53, there is an insert rod 55 that engages with the sleeve rod 54. Its end is connected to plate 56. Gas pushes the sliding piece 58 to move outward. The third flexible piece 59 prevents gas and liquid from leaking out. At the same time, it drives plate 56 to further engage the insert rod 55 with the sleeve rod 54, enhancing the stability of the cell structure. There are two G-shaped tubes 50G and two internal components, which are symmetrically arranged on both sides of the cell assembly 51. Therefore, when the gas pressure inside the cell assembly 51 continues to rise, plate 56 will move the insert rod 55 towards the center, while plate 57 will move the sleeve rod 54 towards the center.

[0055] This structural design enables the battery cell assembly 51 to remain stable during operation even when subjected to vibration or external impact through the interlocking and socketing structure, reducing the risk of loosening or displacement of internal components and enhancing the overall structural strength and stability of the battery cell.

[0056] The battery cell assembly 51 has G-shaped tubes 50G symmetrically arranged at both ends. Sliding adapters 58 slide in the groove at the bottom of the G-shaped tubes 50G. The sliding adapters 58 are connected to No. 3 flexible plates 59 on both sides of the sliding adapters 58, which can effectively prevent gas and liquid leakage. The sliding plate 50 inside the G-shaped tube 50G is connected to the reset spring 501 and the compression plate 502. The top is connected to the battery cell assembly 51 through the transition tube 50F. The bottom of the inner cavity is provided with a collection chamber 50B, a guide arc plate 50A, an adsorption plate 50C, and a branch strip 50D with a guide groove 50E.

[0057] When abnormal gas generation occurs inside the battery cell, the gas and liquid flow through the transition tube 50F into the G-shaped tube 50G. The gas will carry some of the electrolyte outward. The guide arc plate 50A guides the gas and liquid flow to the adsorption plate 50C. The guide groove 50E of the branch bar 50D assists in guiding the electrolyte into the collection chamber 50B, effectively avoiding short circuits and other faults caused by electrolyte leakage. At the same time, the sliding plate 50, the reset spring 501, and the squeezing plate 502 work together to further protect the battery cell and reduce the risk of battery cell explosion.

[0058] One end of the light rod 503 on the outer side of the battery cell assembly 51 is connected to plate 504 (number six). Plate 504 is connected to the sealing disc 506 via a spring-loaded telescopic rod 505. The sealing disc 506 is connected to the aluminum-plastic diaphragm 508 via a short strip 507. The No. 4 toughness sheet 500 on the outer side of the G-shaped tube 50G cooperates with the extrusion plate 502 and the arc-shaped strip 509 at the bottom of the sealing disc 506. Under normal conditions, the sealing disc 506 presses the aluminum-plastic diaphragm 508 tightly under the action of the spring-loaded telescopic rod 505, ensuring the sealing of the battery cell.

[0059] When the internal pressure of the battery cell increases and the aluminum-plastic diaphragm 508 ruptures, the gas and liquid push the sealing disk 506 to move. Subsequently, the gas accumulation in the G-shaped tube 50G can cause the extrusion plate 502 to push the sealing disk 506 to reseal the battery cell assembly 51, achieving double sealing protection for the battery cell and improving the safety of the battery cell. Example

[0060] like Figure 1 , Figure 2 and Figure 3 As shown, the protective cover 2 is fitted onto the top of the outer casing 1 of the stable battery cell, forming a complete protective shell. The fitting joint between the outer casing 1 and the protective cover 2 employs a precise slot and snap-fit ​​design to ensure a tight connection and effectively block external dust, moisture, and mechanical impact. This protective structure design provides a stable and safe operating environment for the internal components of the battery cell, effectively preventing cell failures caused by external factors and extending the battery cell's service life.

[0061] The thermal management mechanism 3 outside the outer shell 1 has a first plate 31 on which a hydraulic rod 32 is installed. The output end of the hydraulic rod 32 is connected to the sleeve strip 33 and the flow control plate 34. The temperature sensor 37 inside the outer shell 1 controls the hydraulic rod 32. The external pipes 35 at both ends of the heat dissipation pipe 38 cooperate with the flow control plate 34 to adjust the flow of coolant.

[0062] Temperature sensor 37 monitors the cell temperature in real time. Based on the temperature data, the control terminal drives hydraulic rod 32 to adjust the engagement degree between control plate 34 and external connector 35, thereby precisely controlling the coolant flow rate. When the cell temperature rises due to high current discharge and exceeds 30°C, temperature sensor 37 transmits a signal to the control terminal, and hydraulic rod 32 retracts, causing control plate 34 to extend upward from the slot of external connector 35, increasing coolant flow and accelerating heat dissipation. Example

[0063] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the drain pipe 41 of the drain mechanism 4 is connected to the heat dissipation pipe 38, and the outer U-shaped plate 42 is connected to the fifth plate 57 via the bending rod 43 and the second sealing piece 44. When abnormal gas generation in the battery cell causes an increase in internal pressure, it pushes the sliding piece 58 to move downward, which in turn drives the fourth plate 56 and the fifth plate 57. The fifth plate 57 pulls the bending rod 43 through the second plate 45, pulls out the U-shaped plate 42 to open the drain pipe 41, and discharges the coolant in the heat dissipation pipe 38, reducing the pressure of the thermal management system and simultaneously helping to release the internal pressure of the battery cell. This drain mechanism 4 works in conjunction with the stabilizing mechanism 5 and the thermal management mechanism 3 to achieve cross-module collaborative protection when the battery cell faces abnormal pressure, effectively preventing the battery cell from being damaged due to excessive pressure.

[0064] During this process, the thermal management mechanism 3 and the venting mechanism 4 work together, and the stabilizing mechanism 5 strengthens the structural connection. This not only rapidly reduces the temperature of the battery cell, but also releases internal pressure, avoids thermal runaway, and ensures that the battery cell can maintain its structural integrity under extreme overheating conditions, thus extending the battery cell's service life.

[0065] In use, when the battery cell experiences an abnormal situation such as overcharging, short circuit, or high temperature, causing an uncontrolled internal chemical reaction, a large amount of gas, mainly a mixture of carbon dioxide, hydrogen, and methane, is generated. The internal pressure rises rapidly at a rate of 0.1-0.3 MPa / min. Simultaneously, as the internal pressure increases, the high-pressure gas exerts pressure on the aluminum-plastic diaphragm 508 until it ruptures. The diaphragm 508 thins to 0.05 mm along a predetermined weak line, forming a pressure relief port with a diameter of 3-5 mm, preventing the battery cell casing from directly exploding. The gas generated during the abnormal battery cell operation, along with some leaked electrolyte, passes through the ruptured aluminum-plastic diaphragm 508 and compresses the sealing disc 506. The sealing disc 506 compresses the elastic telescopic rod 505, which contains a nitrogen spring, and moves outward along the smooth rod 503. Subsequently, the gas and liquid enter the G-shaped tube 50G through the transition tube 50F, and the guide arc plate 50... A guides the gas-liquid mixture towards the adsorption plate 50C. The guide arc plates 50A are arranged in a 120° fan shape, with a PTFE coating resulting in a friction coefficient of 0.05. They guide over 80% of the gas-liquid mixture towards the adsorption plate 50C. The adsorption plate 50C is composed of activated carbon fiber and ceramic fiber composite and adsorbs residual electrolyte. Branch bars 50D are distributed below the adsorption plate 50C. The guide grooves 50E on its 3-4 branch structures at a 60° angle are 1-2 mm deep and 2-3 mm wide, employing a gradient design. The wide inlet and narrow outlet structure creates a Venturi effect, guiding unadsorbed electrolyte into the collection chamber 50B at a flow rate of 0.5 m / s. The collection chamber 50B has a volume of 50-80 mL, and its inner wall is covered with a fluororubber layer resistant to electrolyte corrosion. It can temporarily store leaked liquid until the battery cell is completely cooled, eliminating the safety hazard of electrolyte spillage at the source.

[0066] As gas flows through the G-tube 50G, the sliding plate 58 moves outward under gas pressure, and the third flexible plate 59 adheres tightly to the tank wall to prevent leakage. The sliding plate 58 is connected to the fourth plate 56, causing the interlocking rod 55 to slide, thus transmitting pressure. At the same time, the sleeve rod 54 in another position is moved towards the center by the fifth plate 57 until the sleeve rod 54 is properly engaged with the third plate 53, and the interlocking rod 55 is properly engaged with the sleeve rod 54. In addition, as gas accumulates in the G-tube 50G, the sliding plate 50 inside the G-tube 50G overcomes the elastic force of the return spring 501 and moves upward, causing the extrusion plate 502 to be lifted. The extrusion plate 502 pushes the arc-shaped strip 509 at the bottom of the sealing disk 506, causing the sealing disk 506 to re-seal the cell assembly 51.

[0067] Temperature sensor 37 inside the outer casing 1 monitors the temperature in real time, and the data is transmitted to the control terminal. When the temperature is within the normal range of 20℃-30℃, the control terminal drives hydraulic rod 32 to partially embed the flow control plate 34 into the groove of the outer pipe 35, adjusting the coolant flow through the heat dissipation pipe 38 at a moderate flow rate. If the temperature rises, hydraulic rod 32 contracts, and flow control plate 34 extends outward to increase the coolant flow rate and accelerate heat dissipation; when the temperature drops, hydraulic rod 32 shortens to reduce the flow rate and avoid overcooling, ensuring that the battery cell operates within the optimal temperature range. When abnormal gas generation in the battery cell causes an increase in internal pressure, it pushes sliding plate 58 downward, driving plate 46 and plate 57 in tandem. Plate 57 pulls bending rod 43 through plate 2 45, pulling out U-shaped plate 42 to open drain pipe 41, discharging coolant from heat dissipation pipe 38, reducing the pressure of the thermal management system, preventing component damage, and simultaneously assisting in releasing internal pressure in the battery cell, achieving cross-module collaborative protection between stabilization mechanism 5 and thermal management module.

[0068] In the above process, the stabilization mechanism 5, thermal management mechanism 3, and leakage mechanism 4 form a triple safety redundancy through mechanical linkage and signal interaction: the rupture of the aluminum-plastic diaphragm triggers primary pressure relief, the G-shaped tube 50G achieves gas-liquid separation and adsorption, and the stabilization mechanism enhances structural stability; the temperature sensor and hydraulic rod constitute dynamic temperature control to avoid thermal runaway; and pressure transmission drives the leakage mechanism to provide emergency pressure relief, reducing the system load. The response time of all three is controlled within 1 second, and if any single module fails, the remaining modules can continue to play a protective role through cross-triggering mechanisms, such as directly driving leakage when the temperature is too high. This increases the safety factor of the battery cell under extreme conditions to more than 1.5 times, providing core protection for the stable operation of new energy equipment.

[0069] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made by those skilled in the art based on the above concepts without creative effort shall fall within the scope of protection of the present invention.

Claims

1. A stable battery cell, characterized in that, include: The outer casing is used to protect the battery cell, and a protective cover is fitted on the top of the outer casing. A stabilizing mechanism is used to stabilize the battery cell housing and to provide explosion-proof protection for its interior. The stabilizing mechanism is disposed within the housing. The stabilizing mechanism includes a battery cell assembly, which consists of a battery cell body and a housing. A base is fixedly installed at the bottom of the battery cell assembly, and the base is fixedly installed at the bottom of the inner cavity of the housing. A No. 3 plate is fixedly connected to the center of the inner cavity of the base, and a round hole is opened in the center of the No. 3 plate. A sleeve rod is fitted into the center of the No. 3 plate, and a No. 5 plate is fixedly connected to the end of the sleeve rod away from the No. 3 plate. A fitting rod is provided at the end of the No. 3 plate away from the sleeve rod, the fitting rod is sleeved with the sleeve rod, and the end of the fitting rod away from the No. 3 plate is fixedly connected to the No. 4 plate, wherein the sleeve rod and the fitting rod are fitted together. Both ends of the battery cell assembly are symmetrically provided with G-shaped tubes. The bottom of the G-shaped tube is provided with a groove, and a sliding plate is slidably adapted in the groove. Three flexible plates are symmetrically connected to both sides of the sliding plate, and the three flexible plates are used to prevent gas and liquid from flowing out. An adsorption plate is fixedly installed inside the G-shaped tube. The adsorption plate is used to absorb and adsorb the electrolyte. A tree branch is fixedly connected to the outside of the adsorption plate. A flow guide groove is opened on the outside of the tree branch. The tree branches are used to guide the electrolyte.

2. A stable battery cell according to claim 1, characterized in that: The bottom of the sliding plate is fixedly connected to the fourth plate. By pushing the sliding plate with gas and liquid, the fourth plate, along with the insert rod, is engaged with the sleeve rod.

3. A stable battery cell according to claim 1, characterized in that: The G-shaped tube has a groove inside, and a sliding plate is adapted to slide inside the groove. A return spring and a pressing plate are fixedly connected to the top of the sliding plate. The end of the return spring away from the sliding plate is fixedly connected to the inner wall of the G-shaped tube. The pressing plate passes through the side wall of the G-shaped tube and extends outward.

4. A stable battery cell according to claim 1, characterized in that: A transition tube is fixedly connected to the top end of the G-shaped tube. The end of the transition tube away from the G-shaped tube is connected to the outside of the battery cell assembly. A collection chamber is fixedly installed at the bottom of the inner cavity of the G-shaped tube, and the collection chamber is used to collect and process the sprayed electrolyte. A guide arc plate is fixedly connected to the bottom of the inner cavity of the G-shaped tube.

5. A stable battery cell according to claim 3, characterized in that: A light rod is fixedly connected to the outside of the battery cell assembly. A No. 6 plate is fixedly connected to the end of the light rod away from the battery cell assembly. A spring telescopic rod is fixedly installed at the center of the outside of the No. 6 plate. A closed disc is fixedly connected to the end of the spring telescopic rod away from the No. 6 plate.

6. A stable battery cell according to claim 5, characterized in that: The enclosed disc is inserted into the surface of the light rod and slides along the outside of the light rod. A short strip is fixedly connected to the end of the enclosed disc away from the elastic telescopic rod, and an aluminum-plastic film is fixedly connected to the end of the short strip away from the enclosed disc.

7. A stable battery cell according to claim 5, characterized in that: The outer side of the G-shaped tube is fixedly connected to a No. 4 toughness sheet. The bottom of the No. 4 toughness sheet is pressed and adapted to the extrusion plate, and the top of the extrusion plate is pressed and adapted to an arc-shaped strip. The arc-shaped strip is fixedly connected to the bottom of the closed disc.

8. A thermal management module for use in a stable battery cell as described in claim 1, characterized in that, include: A thermal management mechanism, used to control and manage the temperature inside the outer casing, is located on the outside of the outer casing; A drainage mechanism is used to discharge water from inside the thermal management unit to the outside. The drainage mechanism is located outside the outer casing and connected to the thermal management unit.

9. A thermal management module according to claim 8, characterized in that: The thermal management mechanism includes a No. 1 plate, which is fixedly installed on the outside of the outer shell. A hydraulic rod is fixedly installed inside the No. 1 plate. A connecting strip is fixedly connected to the outside of the output end of the hydraulic rod. A flow control plate is symmetrically connected to both ends of the connecting strip. A temperature sensor is installed inside the outer casing, and the temperature sensor controls the hydraulic rod via a control terminal.

10. A thermal management module according to claim 9, characterized in that: The outer casing is fixedly installed with a heat dissipation pipe. Both ends of the heat dissipation pipe are fixedly installed with an outer connecting pipe. The outer side of the outer connecting pipe is provided with a groove, and a sealing piece is fixedly connected in the groove. At the same time, the groove is fitted with the flow control plate to control the flow area of ​​the coolant.

11. A thermal management module according to claim 10, characterized in that: The drainage mechanism includes a drainage pipe, which is fixedly installed on the outside of the outer shell and connected to the heat dissipation pipe. A U-shaped plate is inserted into the outside of the drainage pipe, wherein the U-shaped plate is used to block the drainage pipe. A bent rod is fixedly connected to the end of the U-shaped plate away from the drain pipe. Two sealing plates are fixedly connected to both sides of the bent rod. The end of the two sealing plates away from the bent rod is fixedly connected to the outer shell. A plate number two is fixedly connected to the end of the bent rod away from the U-shaped plate. The plate number two is fixedly connected to the plate number five.

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