Lead-acid storage battery with long service life and high specific energy

Abstract

The invention discloses a lead-acid storage battery with long service life and high specific energy, and relates to the technical field of batteries, the lead-acid storage battery comprises a protective shell, a flow guide shell, a battery module, a plugging blade group, a power mechanism, an insulating plate and an air inlet shunting pipe group, in a high-temperature or low-temperature environment, a semiconductor chilling plate acts on inflowing air to refrigerate or heat the inflowing air, and the air inlet shunting pipe group is communicated with the semiconductor chilling plate; meanwhile, the plugging blade group vertically moves through the power device, so that the flow guide shell is switched to a second mode, and hot or cold air moves around the battery module, so that the heat exchange efficiency of the battery module is improved, the battery module is rapidly cooled or heated, and the problems that the temperature of the battery module is too high, the service life of the battery module is influenced, and the temperature of the battery module is too low are avoided; and the discharge capability is influenced.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and in particular to a long-life, high-energy-density lead-acid battery. Background Technology

[0002] High-energy-density lead-acid batteries refer to lead-acid batteries that can output higher energy per unit weight or unit volume. They are characterized by: high energy density, reaching 45Wh / kg or higher; superior charge and discharge performance, with strong charging acceptance and significantly shorter charging time, as well as a higher discharge rate; and high safety, being less prone to explosions, fires, or other dangerous situations, making them safe and reliable. They are currently the main power source for low-speed electric vehicles. However, temperature can have a certain impact on high-energy-density lead-acid batteries.

[0003] In high-temperature environments, the internal electrochemical reaction rate of the battery will accelerate, the self-discharge rate will increase, the acid corrosion rate of the plates will also accelerate, and the active material will fall off, thus affecting the service life. In low-temperature environments, the discharge capacity will be weakened, which will lead to a decrease in motor output power, slower vehicle acceleration, and a decrease in top speed, thus affecting the kinetic energy of low-speed electric vehicles.

[0004] To address these issues, we designed a long-life, high-energy-density lead-acid battery. Summary of the Invention

[0005] In view of the above situation and to overcome the defects of the prior art, the present invention provides a long-life high-energy-density lead-acid battery. By changing the current direction of the semiconductor cooling chip to cool or heat it, the temperature of the incoming air is changed, so that the high-energy-density lead-acid battery is kept within a suitable temperature range, thereby extending the service life of the high-energy-density lead-acid battery, while maintaining the discharge capacity of the high-energy-density lead-acid battery within a certain threshold.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A long-life, high-energy-density lead-acid battery includes: a protective casing, a current-guiding casing, a battery module, a sealing blade assembly, a power mechanism, an insulating plate, and an intake splitter assembly; The protective shell has external communication ports on its four sides. A placement groove is formed on the flow guide shell, and the battery module is placed within the placement groove. One side of the flow guide shell has multiple exhaust ports, and the other side has multiple air inlets. Multiple partitions, multiple first flow guide plates, and multiple second flow guide plates are arranged inside the flow guide shell, with the first and second flow guide plates staggered vertically. One end of each first flow guide plate has a notch. The second flow guide plate is slidably disposed and has a protrusion at one end, which extends through the flow guide shell. A baffle plate is positioned above the second flow guide plate, fitting against the bottom surface of the first flow guide plate. A through-hole is provided at one end of the second flow guide plate, and a sealing plate is connected to the other end of the second flow guide plate. The sealing plate is located inside the air inlet. Two baffles are provided on the open surface of the air inlet, and an air inlet is provided at the upper end of the air inlet. The sealing blade assembly consists of multiple blades, with protrusions fitting at the ends of adjacent blades; a transmission rod is connected to the end of the sealing blade assembly, and a power mechanism drives the transmission rod to move up and down. The intake manifold assembly includes: a central intake pipe, a sleeve, and a semiconductor cooling chip. The central intake pipe is nested inside the sleeve, one end of the semiconductor cooling chip is located inside the sleeve, and a manifold opening is provided at one end of the sleeve.

[0007] In one embodiment, the protective housing is fixed to the bottom of the low-speed electric vehicle by a mounting clamp, and a top cover is connected to the top surface of the protective housing by screws.

[0008] In one embodiment, the external connection port is provided with a water baffle, a desiccant, and a filter screen in sequence. The water baffle is used to block water accumulation on the road surface, the desiccant is used to adsorb water molecules in the air, and the filter screen filters impurities in the air.

[0009] In one embodiment, the power mechanism includes: a limiting member, a first memory metal spring, and a second memory metal spring. The limiting member includes an assembly housing fixed to the outer wall of the guide housing. A lower slider and an upper slider are slidably disposed within the assembly housing. The ends of the lower slider and the upper slider are respectively connected to a third memory metal spring and a fourth memory metal spring. The opposite surfaces of the lower slider and the upper slider are sloped. A limiting block is provided at the middle of the transmission rod, located between the lower slider and the upper slider. The third memory metal spring contracts at low temperatures, and the fourth memory metal spring contracts at high temperatures. The first memory metal spring is located at the lower end of the transmission rod. The second memory metal spring is located near the upper end of the transmission rod. Initially, there is a certain distance between the upper end of the second memory metal spring and the upper end of the transmission rod. The first memory metal spring contracts at low temperatures, and the second memory metal spring extends at high temperatures. When the temperature rises to a certain threshold, the fourth memory metal spring contracts, pulling the upper slider and no longer acting on the limiting block. The second memory metal spring extends and pushes the transmission rod upward, and the blades push the second guide plate to move horizontally. When the temperature drops to a certain threshold, the third memory metal spring contracts, pulling the lower slider and no longer acting on the limiting block. The first memory metal spring contracts, the transmission rod descends under gravity, and the blades push the second guide plate to move horizontally.

[0010] In one embodiment, the insulating plate is connected to the top surface of the two flow guide housings by screws, and the insulating plate is provided for series conduction of the battery module.

[0011] In one embodiment, the protective housing is further provided with a microcontroller, a temperature sensor, and a commutator. The microcontroller, temperature sensor, and commutator are electrically connected. The commutator is electrically connected to a thermoelectric cooler. The temperature sensor monitors the ambient temperature. When the temperature is high, the microcontroller turns on the thermoelectric cooler, and the first end of the thermoelectric cooler cools. When the temperature is low, the microcontroller controls the commutator to change the current direction, and the first end of the thermoelectric cooler cools.

[0012] The beneficial effects of this invention are as follows: (1) In the high-temperature environment, the semiconductor cooling chip cools the incoming air. At the same time, the power device moves the sealing blade assembly upward, thereby the guide shell switches to the second mode. The cold air moves around the battery module to increase the heat exchange efficiency of the battery module, thereby quickly cooling the battery module and avoiding the battery module temperature from being too high, which would affect its service life.

[0013] (2) In the low-temperature environment, the semiconductor cooling chip heats the incoming air, and at the same time, the power device moves the sealing blade assembly downward, thereby the flow guide shell switches to the second mode. The hot air moves around the battery module to increase the heat exchange efficiency of the battery module, thereby rapidly heating the battery module and avoiding the battery module temperature from being too low, which would affect its discharge capacity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is a schematic diagram of one side of the flow guide shell structure of the present invention; Figure 5 This is a schematic diagram of the other side of the flow guide shell of the present invention; Figure 6 This is a top view of the flow guide housing of the present invention; Figure 7 This is a schematic diagram of the internal structure of the flow guide shell of the present invention.

[0015] Figure 8 This is a schematic diagram of the second guide plate structure of the present invention.

[0016] Figure 9 This is a schematic diagram of the airflow direction of the air guide shell of the present invention in the first mode.

[0017] Figure 10 This is a schematic diagram of the airflow direction of the air guide shell in the second mode of the present invention.

[0018] Figure 11 This is a schematic diagram of the power mechanism structure of the present invention.

[0019] Figure 12 This is a schematic diagram of the motion of the power mechanism of the present invention.

[0020] In the diagram: 1. Protective housing; 11. Top cover; 12. External connection port; 10. Mounting clamp; 121. First connection port; 122. Second connection port; 123. Third connection port; 2. Guide housing; 21. Placement groove; 22. Transverse channel; 23. Longitudinal channel; 24. Partition; 25. First guide plate; 26. Second guide plate; 27. Sealing plate; 28. Baffle; 20. Exhaust port; 221. Inlet end; 251. Notch; 261. Protrusion; 262. Barrier plate; 263. Through port; 271. Spring clip; 281. Air inlet; 3. Battery module; 4. Sealing blade assembly; 41. First blade; 42. Second blade; 43. Transmission rod; 431. Limiting block; 5. Power mechanism; 51. Limiting component; 52. First shape memory metal spring; 53. Second shape memory metal spring; 511. Lower slider; 512. Upper slider; 513. Third shape memory metal spring; 514. Fourth shape memory metal spring; 6. Insulating plate; 7. Air inlet splitter assembly; 71. Central air inlet pipe; 72. Sleeve; 73. Semiconductor cooling chip; 721. Splitter port; Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0022] Please see Figure 1-3 The present invention provides a long-life, high-energy-density lead-acid battery, comprising: a protective shell 1, a flow guide shell 2, a battery module 3, a sealing blade assembly 4, a power mechanism 5, an insulating plate 6, and an intake splitter assembly 7. Please see Figure 1-3 The protective housing 1 is fixed to the bottom of the low-speed electric vehicle by mounting clamps 10. The top surface of the protective housing 1 is connected to the top cover 11 by screws. The four sides of the protective housing 1 are respectively provided with external communication ports 12. A water baffle, a desiccant, and a filter screen are arranged in sequence at the external communication ports 12. The water baffle is used to block water accumulation on the road surface, the desiccant is used to adsorb water molecules in the air, and the filter screen filters impurities in the air. The four external communication ports 12 are respectively the first communication port 121, the second communication port 122, and the third communication port 123. The first communication port 121 is located on the windward side of the protective housing 1. The two second communication ports 122 form a 90-degree angle with the first communication port 121. The third communication port 123 is arranged opposite to the first communication port 121. The air guide housing 2 and the air intake split pipe assembly 7 are installed inside the protective housing 1. The diversion housing 2 has two modes. The first mode is that air quickly passes through the diversion housing 2 to cool the battery module 3. The first mode cools the battery module 3 in a normal temperature environment. The second mode is that air flows around the battery module 3 in the diversion housing 2 to change the temperature of the battery module 3 (that is, reduce or increase the temperature of the battery module 3). The second mode cools or heats the battery module 3 in high and low temperature environments. The purpose of the air flowing around the battery module 3 is to increase the air flow path, make the heat exchange more sufficient, and reduce ineffective refrigeration or heating. For example, in the first mode, some cold or hot air is directly blown away without sufficient heat exchange, resulting in "ineffective refrigeration or heating", that is, the cold or heat generated by the semiconductor refrigeration sheet 73 is lost without being fully utilized. The second mode reduces the redundant energy consumption of the semiconductor refrigeration sheet 73; Please refer to Figure 4-7 , the diversion housing 2 is made of a material with high thermal conductivity. A placement groove 21 is provided on the diversion housing 2. The battery module 3 is arranged in the placement groove 21. The number of the diversion housing 2 and the placement groove 21 is set according to the number of battery modules 3. For example, if the number of battery modules 3 is four, two opposite diversion housings 2 are provided. A plurality of exhaust ports 20 are respectively arranged on the opposite surfaces of the two diversion housings 2. The height of the lowermost exhaust port 20 is greater than that of the other exhaust ports 20. Two placement grooves 21 are respectively arranged on the two diversion housings 2. From the perspective of the top view, the diversion housing 2 is in the shape of a Chinese character 'Ri'. For easy understanding, the diversion housing 2 is further divided into three transverse channels 22 and two longitudinal channels 23. A plurality of partition plates 24 are arranged in the longitudinal channels 23. A plurality of first diversion plates 25 and a plurality of second diversion plates 26 are arranged in the transverse channels 22. The plurality of first diversion plates 25 and the plurality of second diversion plates 26 are arranged alternately in the vertical direction. The plurality of first diversion plates 25, the plurality of second diversion plates 26 and the plurality of partition plates 24 form a multi-layer flow channel in the diversion housing 2. The ends of the three transverse channels 22 are respectively provided with outwardly protruding air inlet ends 221; Please refer to Figure 7-8 , a notch 251 is provided at one end of the first diversion plate 25 facing the exhaust port 20. The second diversion plate 26 is slidably arranged. A convex block 261 penetrating through the diversion housing 2 is arranged at one end of the second diversion plate 26 facing the exhaust port 20. The convex block 261 is an isosceles triangle. A blocking plate 262 is arranged above the second diversion plate 26. The blocking plate 262 is fitted to the bottom surface of the first diversion plate 25. After the second diversion plate 26 slides horizontally, the blocking plate 262 blocks the notch 251. A through hole 263 is provided at the position of the second diversion plate 26 close to the convex block 261. The other ends of the plurality of second diversion plates 26 are commonly connected to a blocking plate 27; Please refer to Figure 5Multiple sealing plates 27 are located inside the air inlet 221. The height and width of the sealing plates 27 are smaller than those of the air inlet 221. One side of the air inlet 221 is an open surface. Two baffles 28 are provided on the open surface of the air inlet 221. The opposing surfaces of the two baffles 28 are spaced apart. An air inlet 281 is provided at the upper end of the air inlet 221. When the sealing plates 27 and the baffles 28 are in contact, the air is blocked from passing through the contact area between the sealing plates 27 and the baffles 28. The air enters the interior of the guide housing 2 through the air inlet 281. A spring piece 271 is connected to the sealing plates 27. The spring piece 271 is used to reset the second guide plate 26. Please see Figure 3 , Figure 9 The airflow path is as follows: air flows into the intake manifold 7 through the first connecting port 121, part of the air is discharged directly through the third connecting port 123, and the other part of the air is discharged through the intake manifold 7 and then enters the guide housing 2 through the open surface of the intake end 221. The air flows in the multi-layer flow channel to change the temperature of the battery module 3. Finally, the air is discharged through the exhaust port 20 and the second connecting port 122 in sequence. Please see Figure 4 , Figure 9 The sealing blade assembly 4, composed of multiple blades, is positioned between two adjacent exhaust ports 20. Each sealing blade assembly 4 consists of multiple first blades 41 and multiple second blades 42, with each first blade 41 and second blade 42 forming a pair of relatively mating protrusions 261. A transmission rod 43 is connected to the end of the sealing blade assembly 4. A power mechanism 5 drives the transmission rod 43 to move up and down, while simultaneously, the first blade 41 or second blade 42 pushes the protrusions 261, causing the second guide plate 26 to move horizontally. After the second guide plate 26 slides horizontally, the barrier plate 262 seals the notch 251. Because the lowest exhaust port 20 has a certain height, it maintains communication with the outside, while the remaining exhaust ports 20 are sealed by the sealing blade assembly 4. Please see Figure 10 In the second mode, air enters the uppermost flow channel of the guide housing 2 through the air inlet 281. After the air moves forward, it flows downward along the through-hole 263 of the second guide plate 26. Then the air flows in the opposite direction and flows downward again when it reaches the end of the first guide plate 25. This process is repeated until the air flows out through the lowermost exhaust port 20. The above mode increases the air flow path and improves the heat exchange efficiency. Please see Figure 2 The insulating plate 6 is connected to the top surface of the two flow guide housings 2 by screws. The insulating plate 6 is used to connect the battery module 3 in series. Please see Figure 3The intake manifold assembly 7 is located between the two guide housings 2. The intake manifold assembly 7 includes: a central intake pipe 71, a sleeve 72, and a thermoelectric cooler 73. The central intake pipe 71 is nested within the sleeve 72. The central intake pipe 71 and the sleeve 72 are connected to a first connecting port 121 and a third connecting port 123. There are two thermoelectric coolers 73, which are arranged opposite each other on the central intake pipe 71. Each thermoelectric cooler 73 has a first end and a second end. The first end cools, and the second end heats. By changing the direction of the current, the cooling and heating functions of the first and second ends can be interchanged. The first ends of the two semiconductor cooling chips 73 are located inside the sleeve 72. The opposite walls of the sleeve 72 near the third connecting port 123 are respectively provided with flow dividers 721. When it is necessary to cool down the battery module 3, air enters the central air intake pipe 71 and the sleeve 72 respectively. The air in the central air intake pipe 71 blows out the heat generated by the second end of the semiconductor cooling chip 73 to prevent the heat from accumulating in the protective shell 1 and affecting the battery module 3. When the air in the sleeve 72 flows, the first end of the semiconductor cooling chip 73 cools it down. The cooled air flows out along the two flow dividers 721 and enters the two flow guide shells 2 to cool down the battery module 3. The protective housing 1 is also equipped with a microcontroller, a temperature sensor, and a commutator. The microcontroller, temperature sensor, and commutator are electrically connected. The commutator is electrically connected to the thermoelectric cooler 73. The temperature sensor monitors the ambient temperature. When the temperature is high, the microcontroller turns on the thermoelectric cooler 73, and the first end of the thermoelectric cooler 73 performs cooling. When the temperature is low, the microcontroller controls the commutator to change the current direction, and the first end of the thermoelectric cooler 73 performs heating.

[0023] Preferred, further, please refer to Figure 11-12The power mechanism 5 includes: a limiting member 51, a first memory metal spring 52, and a second memory metal spring 53. The limiting member 51 includes an assembly housing fixed to the outer wall of the guide housing 2. A lower slider 511 and an upper slider 512 are slidably disposed within the assembly housing. The ends of the lower slider 511 and the upper slider 512 are respectively connected to a third memory metal spring 513 and a fourth memory metal spring 514. The opposite surfaces of the lower slider 511 and the upper slider 512 are sloped. A limiting block 431 is provided at the middle of the transmission rod 43, and the limiting block 431 is located between the lower slider 511 and the upper slider 512, thereby allowing the transmission rod 43 to move vertically. The third memory metal spring 513 contracts at low temperatures, and the fourth memory metal spring 514 contracts at high temperatures. The first memory metal spring 52 and the second memory metal spring 53 are respectively vertically disposed on the outer wall of the guide housing 2. The first memory metal spring 52 is located below the transmission rod 43, supporting the transmission rod 43. The second memory metal spring 53 is located near the upper end of the transmission rod 43. Initially, there is a certain distance between the upper end of the second memory metal spring 53 and the upper end of the transmission rod 43. The first memory metal spring 52 contracts at low temperatures, and the second memory metal spring 53 extends at high temperatures. Please refer to [link to relevant documentation]. Figure 12 In case A, when the temperature rises to a certain threshold, the fourth memory metal spring 514 contracts, pulling the upper slider 512 and no longer restraining the limit block 431. Meanwhile, the second memory metal spring 53 extends, pushing the transmission rod 43 upward. This causes the multiple second blades 42 to push the second guide plate 26 horizontally, and the guide housing 2 switches to the second mode. Please refer to [link / reference]. Figure 12 In step B, when the temperature drops to a certain threshold, the third memory metal spring 513 contracts, pulling the lower slider 511 and no longer pressing the limit block 431. The first memory metal spring 52 contracts, and the transmission rod 43 descends by gravity, thereby causing multiple first blades 41 to push the second guide plate 26 to move horizontally, and the guide shell 2 switches to the second mode.

[0024] Working principle of this invention: At room temperature, air enters the central intake pipe 71 and the sleeve 72 through the first connecting port 121. The air in the central intake pipe 71 is discharged through the third connecting port 123. The air in the sleeve 72 flows out through the two diversion ports 721 and enters the two guide housings 2. The air flows in the multi-layer flow channel to reduce the temperature of the battery module 3. Finally, the air is discharged through the multiple exhaust ports 20 and the second connecting port 122 in sequence.

[0025] In a high-temperature environment, the semiconductor cooling chip 73 is activated, cooling the first end. Simultaneously, the fourth memory metal spring 514 contracts, pulling the upper slider 512, no longer restraining the limit block 431. The second memory metal spring 53 extends, pushing the transmission rod 43 upward. This causes multiple second blades 42 to move horizontally via the second guide plate 26. The guide shell 2 switches to a second mode, and air enters the central air intake pipe 71 and the sleeve 72 respectively. The air in the central air intake pipe 71 blows out the heat generated by the second end of the semiconductor cooling chip 73, and the air in the sleeve 72... When the air flows, the first end of the semiconductor cooling chip 73 cools it down. The cooled air flows out through the two branch ports 721 and enters the uppermost flow channel of the guide housing 2 through the air inlet 281. After the air moves forward, it flows down through the through port 263 of the second guide plate 26. Then the air flows in the opposite direction and flows down again when it reaches the end of the first guide plate 25. This process is repeated until the air finally flows out through the lowermost exhaust port 20, thereby cooling the battery module 3 and preventing the battery module 3 from overheating and affecting its service life.

[0026] In a low-temperature environment, the first end of the semiconductor cooling chip 73 heats up, the third memory metal spring 513 contracts, pulling the lower slider 511, no longer restraining the limit block 431, and the first memory metal spring 52 contracts. The transmission rod 43 descends under gravity, thereby causing multiple first blades 41 to move horizontally via the second guide plate 26. The guide shell 2 switches to the second mode, and air enters the central air intake pipe 71 and the sleeve 72 respectively. The air in the central air intake pipe 71 blows out the cooling generated by the second end of the semiconductor cooling chip 73, and the air in the sleeve 72 blows out the cooling generated by the second end of the semiconductor cooling chip 73. When the air flows, the first end of the semiconductor cooling chip 73 is heated. The heated air flows out through the two branch ports 721 and enters the uppermost flow channel of the guide housing 2 through the air inlet 281. After the air moves forward, it flows downward through the through port 263 of the second guide plate 26. Then the air flows in the opposite direction and flows downward again when it reaches the end of the first guide plate 25. This process is repeated until the air finally flows out through the lowermost exhaust port 20, thereby heating the battery module 3 and preventing the battery module 3 from being too cold, which would affect its discharge capacity.

[0027] The above embodiments are merely one of the preferred embodiments of the present invention and should not be used to limit the scope of protection of the present invention. Any modifications or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but solve the same technical problem as the present invention, should be included within the scope of protection of the present invention.

Claims

1. A long-life, high-energy-density lead-acid battery, comprising: The protective housing (1), the flow guide housing (2), the battery module (3), the sealing blade assembly (4), the power mechanism (5), the insulating plate (6), and the air intake splitter assembly (7) are characterized in that the protective housing (1) is provided with external communication ports (12) on its four sides, the battery module (3) is installed inside the flow guide housing (2), the flow guide housing (2) is provided with multiple exhaust ports (20) on one side and multiple air intake ends (221) on the other side, and multiple partitions (24), multiple first flow guide plates (25), and multiple second flow guide plates (26) are provided inside the flow guide housing (2), with the multiple first flow guide plates (25) and the multiple second flow guide plates (26) intersecting in the vertical direction. The first guide plate (25) has a notch (251), the second guide plate (26) is slidably set, one end is provided with a protrusion (261), the protrusion (261) penetrates through the guide shell (2), a baffle plate (262) is provided above the second guide plate (26), the baffle plate (262) is attached to the bottom surface of the first guide plate (25), the second guide plate (26) is provided with a through port (263), the other end of the second guide plate (26) is connected to a sealing plate (27), the sealing plate (27) is located inside the air inlet (221), the open surface of the air inlet (221) is provided with a baffle (28), and the upper end of the air inlet (221) is provided with an air inlet (281). The sealing blade assembly (4) consists of multiple blades, with the ends of adjacent blades abutting protrusions (261); the ends of the sealing blade assembly (4) are connected to a transmission rod (43), and the power mechanism (5) drives the transmission rod (43) to move; The intake manifold assembly (7) includes: a central intake pipe (71), a sleeve (72), and a semiconductor cooling chip (73). The central intake pipe (71) is nested inside the sleeve (72), one end of the semiconductor cooling chip (73) is located inside the sleeve (72), and a manifold opening (721) is opened at one end of the sleeve (72).

2. The long-life, high-energy-density lead-acid battery according to claim 1, characterized in that: The protective housing (1) is fixed to the bottom of the low-speed electric vehicle by mounting clamps (10), and the top surface of the protective housing (1) is connected to the top cover (11) by screws.

3. The long-life, high-energy-density lead-acid battery according to claim 1, characterized in that: The external connection port (12) is provided with a water baffle, a desiccant, and a filter screen in sequence. The water baffle is used to block water accumulation on the road surface, the desiccant is used to adsorb water molecules in the air, and the filter screen filters impurities in the air.

4. A long-life, high-energy-density lead-acid battery according to claim 1, characterized in that: The power mechanism (5) includes: a limiting member (51), a first memory metal spring (52), and a second memory metal spring (53). The limiting member (51) includes an assembly housing fixed to the outer wall of the guide housing (2). A lower slider (511) and an upper slider (512) are slidably arranged inside the assembly housing. The ends of the lower slider (511) and the upper slider (512) are respectively connected to a third memory metal spring (513) and a fourth memory metal spring (514). The opposite sides of the lower slider (511) and the upper slider (512) are sloped. A limiting block (431) is provided in the middle of the transmission rod (43). The limiting block (431) is located between the lower slider (511) and the upper slider (512). The third memory metal spring (513) contracts at low temperatures, and the fourth memory metal spring (514) contracts at high temperatures. The first memory metal spring (52) is located in the transmission rod (43). 3) At the lower end, the second memory metal spring (53) is close to the upper end of the transmission rod (43). Initially, there is a certain distance between the upper end of the second memory metal spring (53) and the upper end of the transmission rod (43). The first memory metal spring (52) contracts at low temperature and the second memory metal spring (53) extends at high temperature. When the temperature rises to a certain threshold, the fourth memory metal spring (514) contracts and pulls the upper slider (512), no longer acting on the limit block (431). The second memory metal spring (53) extends and pushes the transmission rod (43) to rise, so that the blade pushes the second guide plate (26) to move horizontally. When the temperature drops to a certain threshold, the third memory metal spring (513) contracts and pulls the lower slider (511), no longer acting on the limit block (431). The first memory metal spring (52) contracts and the transmission rod (43) descends by gravity, so that the blade pushes the second guide plate (26) to move horizontally.

5. A long-life, high-energy-density lead-acid battery according to claim 1, characterized in that: The insulating plate (6) is connected to the top surface of the two flow guide housings (2) by screws. The insulating plate (6) is used to connect the battery module (3) in series.

6. A long-life, high-energy-density lead-acid battery according to claim 1, characterized in that: The protective housing (1) is also equipped with a microcontroller, a temperature sensor, and a commutator. The microcontroller, temperature sensor, and commutator are electrically connected. The commutator is electrically connected to the thermoelectric cooler (73). The temperature sensor monitors the ambient temperature. When the temperature is high, the microcontroller turns on the thermoelectric cooler (73), and the first end of the thermoelectric cooler (73) is cooled. When the temperature is low, the microcontroller controls the commutator to change the current direction, and the first end of the thermoelectric cooler (73) is heated.

7. A long-life, high-energy-density lead-acid battery according to claim 4, characterized in that: The protrusion (261) is an isosceles triangle or an ellipse, and the blade pushes the second guide plate (26) to move horizontally through the protrusion (261).

8. A long-life, high-energy-density lead-acid battery according to claim 1, characterized in that: The power mechanism (5) can also be an electric slide rail or an electric telescopic rod.

Images