High energy density lithium-sulfur battery for humanoid robots

Abstract

The application relates to the technical field of lithium-sulfur batteries, in particular to a high-energy-density lithium-sulfur battery for humanoid robots, which comprises an outer shell and a plurality of cell modules arranged in the outer shell, the cell modules are connected in series with each other, and each cell module comprises a plurality of cell monomers; the cell monomer comprises a lithium-sulfur cell inner shell, a liquid storage cavity is formed between the lithium-sulfur cell and the inner shell, the liquid storage cavity is filled with an insulating fluid, and a deformable isolation component is arranged between the inner shell and the lithium-sulfur cell; the inner shell is further provided with a fluid channel and a pushing cavity which are in communication with the liquid storage cavity, and the pushing cavity is provided with a movable pushing component; a movable electric connecting component is connected to the positive electrode of the lithium-sulfur cell, and the movable electric connecting component is configured to move between a first position in electric connection with the positive electrode and a second position disconnected with the positive electrode; the application can realize active and rapid power-off at the cell level, and fundamentally improves the safety and reliability of the lithium-sulfur battery in the application of humanoid robots.

Description

Technical Field

[0001] This invention relates to the field of lithium-sulfur battery technology, specifically to high-energy-density lithium-sulfur batteries for humanoid robots. Background Technology

[0002] Humanoid robots, as complex dynamic systems integrating walking, manipulation, perception, and decision-making, place extremely stringent demands on the energy density, power output, and safety of their energy systems. Currently, commercial lithium-ion batteries are limited by the theoretical capacity of their cathode materials, and improvements in energy density are nearing a bottleneck, making it difficult to meet the long-duration battery life requirements of humanoid robots. Lithium-sulfur batteries, due to their extremely high theoretical energy density, abundant sulfur resources for cathodes, and environmental friendliness, are considered a crucial development direction for next-generation high-energy-density energy storage systems, particularly suitable for weight-sensitive humanoid robot platforms.

[0003] However, the commercial application of lithium-sulfur batteries still faces many technical challenges, among which safety issues are particularly prominent. Under abuse conditions such as overcharging, overheating, and internal short circuits, polysulfide shuttling, lithium dendrite growth, and side reaction gas generation can easily occur inside the battery, causing cell expansion, a sudden increase in internal pressure, and ultimately leading to thermal runaway or even fire and explosion. Traditional explosion-proof technologies mostly focus on pack-level or module-level safety protection, such as installing pressure relief valves or using circuit protection devices on the battery pack casing. However, their response is lagging and the action threshold is coarse, making it impossible to achieve rapid and accurate location and isolation of faulty cells. Once a cell fails, it can easily trigger a chain reaction, causing the voltage of the entire battery system to collapse and the system to fail, which is unacceptable for humanoid robots with high reliability requirements.

[0004] Therefore, this application proposes a novel battery structure and explosion-proof solution that can achieve active and rapid power-off at the cell level and has system redundancy, fundamentally improving the safety and reliability of lithium-sulfur batteries in humanoid robot applications. Summary of the Invention

[0005] The purpose of this invention is to provide a high-energy-density lithium-sulfur battery for humanoid robots, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-energy-density lithium-sulfur battery for humanoid robots, comprising an outer shell and a plurality of cell modules disposed within the outer shell, wherein the cell modules are connected in series with each other, and each cell module comprises a plurality of individual cells connected in parallel. A single battery cell includes a lithium-sulfur battery cell and an inner casing covering it. A liquid storage cavity is formed between the inner casing and the lithium-sulfur battery cell. The liquid storage cavity is filled with an insulating fluid. A deformable isolation component is also provided between the inner casing and the lithium-sulfur battery cell. The inner shell is also provided with a fluid channel communicating with the liquid storage chamber and a push chamber, and the push chamber is provided with a movable push component; The positive electrode of the lithium-sulfur battery cell is connected to a movable electrical connection component, which is configured to move between a first position maintaining electrical connection with the positive electrode and a second position disconnected from the positive electrode. The actuating component is connected to a movable electrical connection component via a transmission mechanism; When a lithium-sulfur battery cell undergoes thermal runaway and expands, it squeezes the isolation component, causing insulating fluid to enter the push chamber through the fluid channel and act on the push component. The push component then drives the movable electrical connection component from the first position to the second position through the transmission mechanism, thereby disconnecting the circuit connection of the lithium-sulfur battery cell.

[0007] Preferably, the isolation component is a pouch structure made of aluminum-plastic film, one side of which is tightly attached to the outer wall of the lithium-sulfur battery cell, and the other side is in contact with the insulating fluid in the storage cavity. It can deform synchronously with the expansion of the lithium-sulfur battery cell to squeeze the fluid. The upper and lower ends of the isolation component are limited by sealing rings, which are fixed to the inner shell by a detachable structure.

[0008] Preferably, the fluid channel includes a diversion cavity, an extrusion inlet, and multiple diversion holes. The diversion cavity is opened on the outer wall of the inner shell. The extrusion inlet connects the liquid storage cavity and the diversion cavity. The diversion holes are evenly distributed and connect the diversion cavity and the pushing cavity. A valve plate is installed inside the extrusion inlet to control the timing of the insulating fluid in the storage chamber entering the diversion chamber. The diversion orifice can evenly guide the fluid in the diversion chamber into the pushing chamber, so that the pushing component is subjected to stable force.

[0009] Preferably, the pushing component includes a float and a gantry connecting strip. The float is slidably installed in the pushing cavity, and its outer wall is in contact with the inner wall of the pushing cavity. The gantry connecting strip is bonded and fixed to the float, and one end of the gantry connecting strip is connected to an active push rod. The float can directly bear the pressure of the insulating fluid and drive the portal connecting bar to move. The portal connecting bar then transmits power to the active push rod, providing initial power for the subsequent transmission mechanism.

[0010] Preferably, the transmission mechanism includes a lever arm, a central shaft, and a sliding column. The lever arm is rotatably mounted inside the inner housing via the central shaft, and both ends are provided with movable long slots. Both the driving seat and the driven push rod are fixed with sliding columns, which are respectively inserted into the corresponding movable long slots; the lever arm is designed as a force-saving lever to reduce the fluid pressure required to drive the driven push rod.

[0011] Preferably, the movable electrical connection component is a metal spring, which is fixedly connected to the transverse movable plate through a detachable structure. A rectangular slide groove is provided on the upper end face of the inner shell, and the transverse movable plate is limited and slidably installed in the rectangular slide groove. A cylindrical pin is fixed at the upper end of the driven push rod, and an oblique groove is provided on the transverse moving plate. The cylindrical pin is inserted into the oblique groove. When the driven push rod moves, it can drive the transverse moving plate and the metal spring to move synchronously through the cooperation of the cylindrical pin and the oblique groove.

[0012] Preferably, the inner housing is further provided with a locking assembly, which includes a locking block, a limiting block and a first spring, and the limiting block is slidably mounted on the sealing plate for limiting. One end of the limiting block is connected to the No. 1 spring, and the other end of the limiting block is fixed to the locking block. The door-shaped connecting strip has a bite that matches the locking block.

[0013] Preferably, the sealing plate is provided with an unlocking assembly, which includes an unlocking plate, a toggle key and a second spring, and the unlocking plate is slidably mounted on the side wall of the sealing plate. One end of the unlocking plate is fixed to the toggle button, and the other end can be inserted into the wedge-shaped groove of the limit block. One side of the toggle button is connected to the second spring.

[0014] Preferably, both the pushing cavity and the diversion cavity are designed as semi-open structures, and the open sides of both are covered by a sealing plate. The sealing plate is detachably connected to the inner shell, which can seal the pushing cavity and the diversion cavity.

[0015] Preferably, the positive and negative electrodes of multiple battery cells are connected in parallel through an upper integrated plate and a lower integrated plate, respectively. The lower integrated plate is fixed to the bottom of the inner cavity of the outer shell, and the upper integrated plate is spliced ​​together by metal springs and connecting conductive strips. The connecting conductive strip is detachably connected to the inner shell via a push-pull buckle structure.

[0016] Preferably, the driven push rod has a protruding block on its side wall, and a No. 3 spring is provided at the lower end of the block. One end of the No. 3 spring abuts against the block, and the other end is fixed to the inner wall of the inner shell. In its natural state, the No. 3 spring is in an extended state.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention converts the abnormal expansion of the battery cell into a mechanical trigger signal by setting a fluid chamber and an isolation membrane between the inner shell and the battery cell. This mechanism directly responds to the most significant characteristics in the early stage of thermal runaway using physical principles. It has a fast response speed and high reliability, and achieves a fundamental leap from the traditional coarse pressure relief at the package level to precise and active protection at the battery cell level, thus curbing the occurrence of thermal runaway from the source.

[0018] 2. This invention does not rely on external power or electronic sensors for driving; it only uses fluid pressure to ultimately disconnect the metal spring from the positive terminal of the battery cell. This purely mechanical structure avoids the risk of circuit system failure in case of malfunction, ensuring absolutely reliable operation and guaranteeing the normal triggering of safety functions even in the most extreme circumstances.

[0019] 3. Based on the assembly structure of "first connecting in parallel to form a group, then connecting in series to form a package", when a single faulty cell is disconnected, the parallel module to which it belongs can still continue to work through the remaining healthy cells; the battery body only shows a slight decrease in capacity, while the output voltage remains stable, avoiding the paralysis of the entire battery system due to a single point of failure, and ensuring that the humanoid robot has the ability to move to a safe position.

[0020] 4. This invention achieves disconnection through mechanical action, and the locking component can maintain the disconnected state, facilitating fault location. Simultaneously, the modular design of the sealing ring and detachable sealing plate enables the inspection and replacement of key components such as the separator and fluid chamber without scrapping the entire module, significantly reducing subsequent maintenance costs and lowering the barrier to entry, thus extending the overall lifespan of the battery pack. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the outer casing and internal components of the present invention.

[0023] Figure 3 This is a three-dimensional schematic diagram of a single battery cell of the present invention.

[0024] Figure 4 This is a three-dimensional schematic diagram of a single cell of the present invention from another perspective.

[0025] Figure 5 This is a schematic diagram of the closed state of the metal spring of the present invention.

[0026] Figure 6 This is a schematic diagram of the metal spring in the open state in this invention.

[0027] Figure 7 This is a schematic diagram of the inner shell, the isolation membrane, and the sealing ring of the present invention.

[0028] Figure 8 This is a partial structural schematic diagram of the inner shell, valve plate, sealing plate, and gate-shaped connecting strip of the present invention.

[0029] Figure 9 This is a schematic diagram showing the connection between the metal spring and the actuating component of the present invention.

[0030] Figure 10 This is an exploded schematic diagram of the driving component in this invention.

[0031] Figure 11 This is a schematic diagram of the door-type connecting strip and locking component of the present invention.

[0032] In the diagram: 1. Outer shell; 2. Inner shell; 201. Liquid storage chamber; 202. Extrusion inlet; 203. Diversion chamber; 204. Diversion orifice; 205. Pushing chamber; 3. Separating membrane; 4. Sealing ring; 5. Lithium-sulfur battery cell; 6. Metal spring; 7. Connecting conductive strip; 8. Sealing plate; 9. Valve plate; 10. Float plate; 11. Gate-type connecting strip; 1101. Engagement seam; 12. Active push rod; 13. Active seat; 14. Lever arm; 15. Central shaft; 16. Sliding column; 17. Driven push rod; 1701. Vertical block; 18. Cylindrical pin; 19. Inclined groove; 20. Lateral moving plate; 21. Locking block; 22. Limiting block; 2201. Wedge groove; 23. Spring No. 1; 24. Unlocking plate; 25. Toggle key; 26. Spring No. 2. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1 to 11 This invention provides a technical solution: a high-energy-density lithium-sulfur battery for humanoid robots, comprising an outer shell 1, with multiple cell modules connected in series within the outer shell 1; each cell module is composed of multiple individual cells connected in parallel; each individual cell includes a lithium-sulfur cell 5 and an inner shell 2, the positive and negative electrodes of the multiple lithium-sulfur cells 5 are connected in parallel by an upper integrated plate and a lower integrated plate, the lower integrated plate is located at the bottom of the inner cavity of the outer shell 1, and the upper integrated plate is composed of multiple metal springs 6 and multiple connecting conductive strips 7 spliced ​​together, the connecting conductive strips 7 are detachably fixed to the upper end of the inner shell 2 by a push-pull buckle structure, the metal springs 6 are limited and slidably mounted on the connecting conductive strips 7 and pushed by... The component drives displacement, thereby contacting or disconnecting from the positive electrode of the lithium-sulfur battery cell 5. To avoid interference with the connecting conductive strip 7, the inner shell 2 is made of insulating material. In use, this invention, through the parallel module and then series connection structure, can simultaneously meet the requirements of voltage and output stability. When a single lithium-sulfur battery cell 5 experiences thermal runaway, the metal spring 6, pushed by the driven component, quickly disconnects from the positive electrode of the lithium-sulfur battery cell 5, thus disconnecting the lithium-sulfur battery cell 5 individually, while the parallel module to which it belongs can still work normally. This only causes a decrease in system capacity rather than voltage collapse, greatly improving system redundancy and reliability, and preventing the humanoid robot from being completely paralyzed due to a single point of battery failure. Furthermore, physically disconnecting the faulty battery cell fundamentally cuts off its energy input path, minimizing the risk of thermal runaway, maintaining voltage stability at the output end, and ensuring the stability of the humanoid robot's operation.

[0035] like Figures 4-8 As shown, to enable each lithium-sulfur battery cell 5 that experiences thermal runaway to automatically disconnect, an annular liquid storage cavity 201 is recessed on the inner wall of the inner shell 2. A separator 3 is attached to the side of the liquid storage cavity 201 adjacent to the lithium-sulfur battery cell 5. This separator 3 is a pouch structure made of aluminum-plastic film. One side of the separator 3 contacts the outer wall of the lithium-sulfur battery cell 5, and the other side contacts the fluid inside the annular liquid storage cavity 201. The upper and lower ends of the separator 3 are fixed by sealing rings 4, which are detachably fixed to the inner shell 2 by screws. A diversion cavity 203 and a pushing cavity 205 are sequentially formed on the outer wall of the inner shell 2. Both the pushing cavity 205 and the diversion cavity 203 are gate-shaped grooves, and the pushing component is disposed within the pushing cavity 205. Multiple linearly distributed diversion holes 204 are provided between the liquid storage chamber 203 and the push chamber 205. The liquid storage chamber 201 is filled with fluid, which is a liquid medium with high insulation, high chemical stability and suitable viscosity. It can be one or more of mineral oil, synthetic hydrocarbon oil, transformer oil or hydraulic oil. An extrusion inlet 202 is provided between the liquid storage chamber 201 and the diversion chamber 203. A valve plate 9 is provided in the extrusion inlet 202. When the lithium-sulfur battery cell 5 expands, it directly acts on the separator 3, thereby pushing the fluid through the extrusion inlet 202 into the diversion chamber 203. The fluid in the diversion chamber 203 is evenly squeezed into the push chamber 205 through the multiple diversion holes 204, thereby stably acting on the push assembly.

[0036] like Figures 8-10 As shown, the pushing assembly includes a float 10, a portal connecting strip 11, an active push rod 12, an active seat 13, a lever arm 14, a central shaft 15, a sliding column 16, a driven push rod 17, and a transverse moving plate 20. The float 10 is slidably installed in the pushing cavity 205 and is bonded and fixed to the portal connecting strip 11. One end of the active push rod 12 is fixedly connected to the portal connecting strip 11, and the other end of the active push rod 12 is welded and fixed to the driven push rod 17. The active push rod 12 is connected to the driven push rod 17 through the lever arm 14. The upper end extends into the top wall of the inner housing 2 and is fixedly connected with a cylindrical pin 18. The upper end face of the inner housing 2 is provided with a rectangular groove for accommodating the transverse moving plate 20. The top of the transverse moving plate 20 is fixed to the metal spring 6 by screws. Similarly, the transverse moving plate 20 is made of insulating material, and the transverse moving plate 20 is provided with an oblique groove 19 for accommodating the cylindrical pin 18. When the driven push rod 17 moves downward, the cylindrical pin 18 on it acts on the oblique groove 19, so that the transverse moving plate 20 is forced to drive the metal spring 6 to disconnect from the positive electrode of the lithium-sulfur battery.

[0037] like Figures 8-10As shown, to ensure that the active push rod 12 can properly push the driven push rod 17, the lever arm 14 is designed as a force-saving lever. The lever arm 14 is rotatably mounted in the inner housing 2 through the central shaft 15. Both ends of the lever arm 14 are provided with movable long slots. The active seat 13 and the driven push rod 17 are both fixedly welded with sliding pins 16 that are inserted into the movable long slots. In order to ensure that the metal spring 6 is stably connected to the positive electrode of the lithium-sulfur battery cell 5, a block 1701 is provided protruding from the side wall of the driven push rod 17. A No. 3 spring is provided at the lower end of the block 1701. With this configuration, when the lever arm 14 is not subjected to external force, the elastic force of the No. 3 spring acts on the driven push rod 17 through the block 1701, so that the cylindrical pin 18 on the driven push rod 17 is always stably engaged with the upper end of the inclined slot 19, thereby ensuring that the metal spring 6 is stably connected to the positive electrode of the lithium-sulfur battery cell 5. When the active push rod 12 moves upward, the sliding pin 16 on it acts on the power end of the lever arm 14, causing the driven end of the lever arm 14 to drive the driven push rod 17 to move downward, causing the cylindrical pin 18 on the driven push rod 17 to act on the inclined groove 19.

[0038] like Figure 4 , Figure 7 , Figure 8 as well as Figure 11 As shown, to facilitate the assembly of the pushing component, both the pushing cavity 205 and the diversion cavity 203 are designed as semi-open structures. A sealing plate 8 is detachably installed on the open side to simultaneously surround the pushing cavity 205 and the diversion cavity 203. The sealing plate 8 is fixed to the inner housing 2 with screws. To prevent the phenomenon of unstable dynamics due to thermal runaway compression of the fluid, a locking component is provided on the sealing plate 8. The locking component includes a locking block 21, a limiting block 22, and a first spring 23. The limiting block 22 is slidably mounted on the sealing plate 8. One end of the limiting block 22 is connected to the first spring 23, and the other end of the limiting block 22 is fixedly connected to the locking block 21. The lower end face of the locking block 21 is designed as an arc shape, and the gate-type connecting strip 11 has a bite 1101 for accommodating the locking block 21. When the gantry connecting strip 11 moves up to the top of the push cavity 205, it pushes the limiting block 22 under the elastic force of the first spring 23, thereby causing the locking block 21 to quickly engage in the bite 1101, thus limiting and fixing the gantry connecting strip 11, and stabilizing the metal spring 6 in the moved position.

[0039] like Figure 5 , Figure 10 as well as Figure 11As shown, in order to facilitate the reset of the door-shaped connecting strip 11, an unlocking component is also provided on the sealing plate 8. The unlocking component includes an unlocking plate 24, a toggle key 25, and a second spring 26. The unlocking plate 24 is slidably mounted on the side wall of the sealing plate 8. A wedge-shaped groove 2201 is provided on the limiting block 22. One end of the unlocking plate 24 is fixedly connected to the toggle key 25, and the other end of the unlocking plate 24 can be movably inserted into the wedge-shaped groove 2201. A second spring 26 is also connected to the side of the toggle key 25 near the unlocking plate 24.

[0040] In use: When a single lithium-sulfur cell 5 experiences thermal runaway, its outer wall expands and compresses the separator 3, thereby pushing fluid through the extrusion port 202 into the diversion chamber 203. The fluid in the diversion chamber 203 is evenly squeezed into the pushing chamber 205 through multiple diversion holes 204, thus stably acting on the float 10. This causes the gate-shaped connecting bar 11 to be forced to move the active push rod 12 upward. The sliding pin 16 on the active push rod 12 acts on the power end of the lever arm 14, causing the driven end of the lever arm 14 to drive the driven push rod 17 downward. The cylindrical pin 18 on the driven push rod 17 acts on the inclined groove 19, thereby causing the transverse moving plate 20 to be forced to disconnect the metal spring 6 from the lithium-sulfur battery. The positive electrode is connected; during this process, when the gate-type connecting bar 11 moves up to the top of the pushing cavity 205, it pushes the limiting block 22 under the elastic force of the first spring 23, thereby causing the locking block 21 to quickly engage in the bite 1101, thus limiting and fixing the gate-type connecting bar 11, and stabilizing the metal spring 6 in the position after the movement; thus, the lithium-sulfur battery cell 5 is disconnected alone, while the parallel module to which it belongs can still work normally, only causing a decrease in system capacity rather than voltage collapse, and physically disconnecting the faulty battery cell fundamentally cuts off its energy input path, keeping the risk of thermal runaway to a minimum, maintaining the voltage stability of the output end, and ensuring the stability of the humanoid robot's operation.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-energy-density lithium-sulfur battery for humanoid robots, comprising a housing and a plurality of cell modules disposed within the housing, the cell modules being connected in series with each other, characterized in that, Each cell module includes multiple individual cells connected in parallel; A single battery cell includes a lithium-sulfur battery cell and an inner casing covering it. A liquid storage cavity is formed between the inner casing and the lithium-sulfur battery cell. The liquid storage cavity is filled with an insulating fluid. A deformable isolation component is also provided between the inner casing and the lithium-sulfur battery cell. The inner shell is also provided with a fluid channel communicating with the liquid storage chamber and a push chamber, and the push chamber is provided with a movable push component; The positive electrode of the lithium-sulfur battery cell is connected to a movable electrical connection component, which is configured to move between a first position maintaining electrical connection with the positive electrode and a second position disconnected from the positive electrode. The actuating component is connected to a movable electrical connection component via a transmission mechanism; When a lithium-sulfur battery cell undergoes thermal runaway and expands, it squeezes the isolation component, causing the insulating fluid to enter the push chamber through the fluid channel and act on the push component. The push component drives the movable electrical connection component from the first position to the second position through the transmission mechanism, thereby disconnecting the circuit connection of the lithium-sulfur battery cell. The pushing component includes a float and a gantry connecting strip. The float is slidably installed in the pushing cavity, and its outer wall is in contact with the inner wall of the pushing cavity. The gantry connecting strip is bonded and fixed to the float, and one end of the gantry connecting strip is connected to an active push rod. The float can directly bear the pressure of the insulating fluid and drive the portal connecting bar to move. The portal connecting bar then transmits power to the active push rod, providing initial power for the subsequent transmission mechanism.

2. The high-energy-density lithium-sulfur battery for humanoid robots according to claim 1, characterized in that: The isolation component is a pouch structure made of aluminum-plastic film, one side of which is tightly attached to the outer wall of the lithium-sulfur battery cell, and the other side is in contact with the insulating fluid in the storage cavity. It can deform synchronously with the expansion of the lithium-sulfur battery cell to squeeze the fluid. The upper and lower ends of the isolation component are limited by sealing rings, which are fixed to the inner shell by a detachable structure.

3. The high-energy-density lithium-sulfur battery for humanoid robots according to claim 2, characterized in that: The fluid channel includes a flow distribution cavity, an extrusion inlet, and multiple flow distribution holes. The flow distribution cavity is opened on the outer wall of the inner shell. The extrusion inlet connects the liquid storage cavity and the flow distribution cavity. The flow distribution holes are evenly distributed and connect the flow distribution cavity and the pushing cavity. A valve plate is installed inside the extrusion inlet to control the timing of the insulating fluid in the storage chamber entering the diversion chamber. The diversion orifice can evenly guide the fluid in the diversion chamber into the pushing chamber, so that the pushing component is subjected to stable force.

4. The high-energy-density lithium-sulfur battery for humanoid robots according to claim 3, characterized in that: The transmission mechanism includes a lever arm, a central shaft, and a sliding column. The lever arm is rotatably mounted in the inner housing via the central shaft, and both ends are provided with movable long slots. Both the driving seat and the driven push rod are fixed with sliding columns, which are respectively inserted into the corresponding movable long slots; the lever arm is designed as a force-saving lever to reduce the fluid pressure required to drive the driven push rod.

5. The high-energy-density lithium-sulfur battery for humanoid robots according to claim 4, characterized in that: The movable electrical connection component is a metal spring. The metal spring is fixedly connected to the transverse movable plate through a detachable structure. A rectangular slide groove is provided on the upper end face of the inner shell. The transverse movable plate is limited and slidably installed in the rectangular slide groove. A cylindrical pin is fixed at the upper end of the driven push rod, and an oblique groove is provided on the transverse moving plate. The cylindrical pin is inserted into the oblique groove. When the driven push rod moves, it can drive the transverse moving plate and the metal spring to move synchronously through the cooperation of the cylindrical pin and the oblique groove.

6. The high-energy-density lithium-sulfur battery for humanoid robots according to claim 1, characterized in that: The inner housing is also provided with a locking assembly, which includes a locking block, a limiting block and a No. 1 spring. The limiting block is slidably mounted on the sealing plate for limiting. One end of the limiting block is connected to the No. 1 spring, and the other end of the limiting block is fixed to the locking block. The door-shaped connecting strip has a bite that matches the locking block.

7. The high-energy-density lithium-sulfur battery for humanoid robots according to claim 6, characterized in that: The sealing plate is provided with an unlocking component, which includes an unlocking plate, a toggle key and a second spring. The unlocking plate is slidably mounted on the side wall of the sealing plate. One end of the unlocking plate is fixed to the toggle button, and the other end can be inserted into the wedge-shaped groove of the limit block. One side of the toggle button is connected to the second spring.

8. The high-energy-density lithium-sulfur battery for humanoid robots according to claim 7, characterized in that: Both the pushing chamber and the diversion chamber are designed as semi-open structures, and their open sides are covered by a sealing plate. The sealing plate is detachably connected to the inner shell, which can seal the pushing chamber and the diversion chamber.

9. The high-energy-density lithium-sulfur battery for humanoid robots according to claim 8, characterized in that: The positive and negative terminals of multiple battery cells are connected in parallel through an upper integrated plate and a lower integrated plate, respectively. The lower integrated plate is fixed to the bottom of the inner cavity of the outer shell, and the upper integrated plate is spliced ​​together by metal springs and connecting conductive strips. The connecting conductive strip is detachably connected to the inner shell via a push-pull buckle structure.

10. The high-energy-density lithium-sulfur battery for humanoid robots according to claim 5, characterized in that: The driven push rod has a protruding block on its side wall, and a No. 3 spring is provided at the lower end of the block. One end of the No. 3 spring abuts against the block, and the other end is fixed to the inner wall of the inner shell. In its natural state, the No. 3 spring is in the extended state.

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