Energy storage battery device with integrated composite copper foil in negative electrode current collector

Abstract

The present invention relates to the field of battery technology, and specifically to an energy storage battery device with a composite copper foil integrated in a negative electrode current collector. The device comprises a packaging shell and a negative electrode composite copper foil arranged inside the packaging shell. A corner control block is provided at a corner of the packaging shell, and one end of the negative electrode composite copper foil is sealed and embedded in the corner control block. The negative electrode composite copper foil comprises a polymer base layer and a copper foil layer, the copper foil layer symmetrically covering two sides of the polymer base layer, and a base layer flow channel is opened in the polymer base layer along its length. The energy storage battery device with the composite copper foil integrated in the negative electrode current collector can allow electrolyte to circulate in the base layer flow channel, thereby significantly improving the heat dissipation capacity of the negative electrode composite copper foil and reducing the probability of the composite copper foil easily forming local hot spots in traditional technologies.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to an energy storage battery device with a composite copper foil integrated in a negative electrode current collector. Background Art

[0002] The energy storage battery with composite copper foil integrated in the negative electrode current collector is a battery device that uses a new type of composite current collector material. Its core feature is the use of a "copper-polymer material-copper" sandwich structure in the negative electrode current collector instead of traditional pure copper foil; the flexibility of the polymer substrate can disperse the surface stress of the current collector, making the lithium ion deposition more uniform, reducing the risk of lithium dendrites piercing the diaphragm, and it is lighter in weight and has higher energy density.

[0003] However, the disadvantage is that the overall thermal conductivity of the composite copper foil is only 8%-13% of that of traditional copper foil. Heat is difficult to be evenly distributed and conducted. Local hot spots are easily formed under high loads, causing high temperatures to further degrade the composite copper foil, causing a vicious cycle. Summary of the Invention

[0004] The object of the present invention is to provide an energy storage battery device with a composite copper foil integrated in a negative electrode current collector, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy storage battery device with a composite copper foil integrated into a negative electrode current collector, comprising a packaging shell and a negative electrode composite copper foil disposed inside the packaging shell, wherein a corner control block is disposed at one corner of the packaging shell, and one end of the negative electrode composite copper foil is sealed and embedded in the corner control block;

[0006] The negative electrode composite copper foil includes a polymer base layer and a copper foil layer. The copper foil layer is symmetrically covered on both sides of the polymer base layer. A base flow channel is opened in the polymer base layer along its length direction. The electrolyte is drawn through the edge control block and transported to the base flow channel under positive pressure, so that the electrolyte flows in the base flow channel.

[0007] The corner control block is provided with a power column cavity and a piston column cavity, and the power column cavity and the piston column cavity are connected to each other. A movable column hammer is movably provided inside the power column cavity, and a limit wall ring is fixedly provided on the inner wall surface of the power column cavity.

[0008] A primary connecting tube is inserted in the limiting wall ring, a secondary connecting tube is fixedly provided at the end of the primary connecting tube, a piston part is fixedly provided at the end of the secondary connecting tube, and the piston part is slidingly sealed inside the piston column cavity. The primary connecting tube is hammered by the active inertia of the movable column hammer, so that the piston part moves in the piston column cavity, thereby driving the electrolyte to flow in the base flow channel.

[0009] A support spring is provided below the movable column hammer, and a rebound spring is provided above the movable column hammer; when the energy storage battery device shakes, the movable column hammer bounces back and forth inside the power column cavity through the support and rebound of the support spring and the rebound spring, and during the process, the movable column hammer intermittently hammers the end of the first-stage connecting pipe.

[0010] A suction tray is fixedly provided on the surface of the first-level connecting pipe, and a suction spring is provided below the suction tray. With the support of the suction spring, the first-level connecting pipe can be elastically reset after being hammered by the movable column hammer, thereby driving the piston column cavity to reset and move upward.

[0011] A buffer column cavity is provided inside the corner control block, and the buffer column cavity is connected to the lower end of the piston column cavity; a corrugated partition is provided in the buffer column cavity, and an output wall hole is provided through the side wall surface of the buffer column cavity in the area above the corrugated partition, and the output wall hole is used to connect with the base flow channel.

[0012] A flow limit disk is fixedly installed inside the buffer column cavity above the corrugated partition layer, and a liquid inlet channel is opened inside the corner control block. One end of the liquid inlet channel is connected to the internal electrolyte of the packaging shell, and the other end of the liquid inlet channel is connected to the area of ​​the buffer column cavity above the flow limit disk.

[0013] One-way valves are respectively provided in the liquid inlet flow channel and the flow direction limit plate. The one-way valve correspondingly provided on the liquid inlet flow channel allows the electrolyte inside the packaging shell to flow unidirectionally into the liquid inlet flow channel; the one-way valve correspondingly provided on the flow direction limit plate allows the electrolyte flowing above the flow direction limit plate to flow unidirectionally toward the bottom of the flow direction limit plate.

[0014] A leakage probe is provided at the upper end of the piston column cavity. When electrolyte leakage occurs between the piston portion and the piston column cavity, detection can be achieved through the leakage probe.

[0015] An annular glue groove is provided on the outer surface of the piston part near the upper end, and a glue outlet hole is provided in the annular glue groove, which is connected to the inner cavity of the secondary connecting pipe through the glue outlet hole; a gel body is provided in the secondary connecting pipe, and a glue blocking disk for sealing the gel body is provided below the gel body, and a lifting spring is provided below the glue blocking disk to support the glue blocking disk upward by the lifting spring.

[0016] A glue pressing shaft is inserted into the secondary connecting pipe, and the glue pressing shaft is located above the gel body and forms a blockage above the gel body.

[0017] A compressed air cavity is provided in the first-level connecting pipe, and an electric fusion head is connected to the lower part of the compressed air cavity. The compressed air cavity stores gas in a compressed state and is sealed by the electric fusion head. A control wire is connected to the electric fusion head. The electric fusion head can be melted by supplying power through the control wire, thereby releasing the compressed gas in the compressed air cavity; the control wire is sealed and inserted through the side wall of the first-level connecting pipe and extends to the outside for circuit connection.

[0018] The internal sealing sliding of the first-level connecting pipe is provided with a pushing piston, the pushing piston is located below the electric fusion head, and the pushing piston is fixedly installed with the glue pressing shaft;

[0019] A push-disc is fixedly provided on the glue pressing shaft, a side wall groove is provided on the primary connecting pipe, a limit card block is provided inside the side wall groove, and an array card slot is provided on the inner wall surface of the limit wall ring; when the push-disc moves downward, the push-disc squeezes the limit card block, so that the limit card block extends from the side wall groove and is stuck in the array card slot, thereby locking the position of the primary connecting pipe.

[0020] The corner control block is provided with a vertical accommodating groove, in which a first adhesive strip and a second adhesive strip are provided. The vertical accommodating groove and the second adhesive strip cooperate with an adhesive to seal and bond one end of the negative electrode composite copper foil, so that the one end of the negative electrode composite copper foil is sealed and embedded in the corner control block;

[0021] A reserved cavity is reserved between the first adhesive strip and the second adhesive strip, and the output wall hole is communicated with the base flow channel through the reserved cavity.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The energy storage battery device with a composite copper foil integrated into the negative electrode current collector can circulate the electrolyte in the base flow channel by setting up a base flow channel in conjunction with structures such as edge control blocks, thereby greatly improving the heat dissipation capacity of the negative electrode composite copper foil and reducing the probability of local hot spots easily formed in the composite copper foil in traditional technologies.

[0024] By coordinating the power column cavity, piston column cavity, and movable column hammer structures, the shaking of the energy storage battery device can be used to generate driving force to circulate the electrolyte without increasing energy consumption. In addition, the corrugated interlayer and the buffer column cavity can buffer the transported electrolyte, so that the electrolyte is transported more smoothly and slowly to the base flow channel, avoiding the appearance of jets that affect the stability of the negative electrode composite copper foil.

[0025] By cooperating with the compressed air chamber, glue pressing shaft, annular glue groove and other structures, the sealing condition between the piston part and the piston column cavity can be monitored. After the energy storage battery device has been used for a long time and reaches the life limit, after detecting electrolyte leakage, it can automatically lock the piston column cavity and other structures, stop the electrolyte driving function, and release the gel to further seal the piston part and the piston column cavity, so as to prioritize ensuring that the electrolyte will not leak into the power column cavity, causing electrolyte loss and further causing fault problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 This is a horizontally cut partial view of the output wall hole of the present invention.

[0028] Figure 3 Schematic diagram of the negative electrode composite copper foil of the present invention.

[0029] Figure 4 This is a three-dimensional half-section diagram showing the corner control block of the present invention.

[0030] Figure 5 for Figure 4 Enlarged schematic diagram of area A in the middle.

[0031] Figure 6 for Figure 4 Enlarged schematic diagram of area B in the middle.

[0032] Figure 7 This is a three-dimensional half-section partial structure front view of the corner control block of the present invention.

[0033] Figure 8 It is a schematic diagram of the structure of parts of the present invention.

[0034] Figure 9 It is a three-dimensional half-section view of the upper half of the component structure of the present invention.

[0035] Figure 10 It is a three-dimensional half-section view of the lower half of the component structure of the present invention.

[0036] Figure: 1, packaging shell; 2, negative electrode composite copper foil; 3, corner control block; 4, polymer base layer; 5, copper foil layer; 6, base flow channel; 7, power column cavity; 8, piston column cavity; 9, movable column hammer; 10, limit wall ring; 11, primary connecting pipe; 12, secondary connecting pipe; 13, piston part; 701, support spring; 702, rebound spring; 703, suction tray; 704, suction spring; 705, buffer column cavity; 706, corrugated interlayer; 707, output wall hole; 708, flow limit plate; 709, inlet flow Channel; 710, one-way valve; 301, leakage probe; 302, annular glue groove; 303, glue outlet hole; 304, gel body; 305, glue blocking disk; 306, lifting spring; 307, glue pressing shaft; 308, compressed air cavity; 309, electric fusion head; 310, control wire; 311, pushing piston; 312, push disk; 313, side wall groove; 314, limit card block; 315, array card slot; 201, accommodating vertical groove; 202, first adhesive strip; 203, second adhesive strip; 204, reserved cavity. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See also Figures 1 to 10 The present invention provides a technical solution: an energy storage battery device with a composite copper foil integrated in a negative electrode current collector, comprising a packaging shell 1 and a negative electrode composite copper foil 2 arranged inside the packaging shell 1, and a corner control block 3 is provided at one corner of the packaging shell 1, such as Figure 1 As shown in the figure, the corner control block 3 is set at a corner of the packaging shell 1, and the cross-section is triangular, which can effectively reduce the impact on the internal space of the packaging shell 1 and will not have a significant impact on the battery cells when the battery cells are wound and stacked.

[0039] One end of the negative electrode composite copper foil 2 is sealed and embedded in the corner control block 3; the negative electrode composite copper foil 2 includes a polymer base layer 4 and a copper foil layer 5, and the copper foil layer 5 is symmetrically covered on both sides of the polymer base layer 4. A base flow channel 6 is opened in the polymer base layer 4 along its length direction. The electrolyte is drawn through the corner control block 3 and transported to the base flow channel 6 under positive pressure, so that the electrolyte flows in the base flow channel 6.

[0040] like Figure 3As shown in , since the thickness of the polymer base layer 4 is relatively thin in actual circumstances, when processing the base layer flow channel 6, it can be divided into two parts, and a semi-cylindrical groove is printed on the surface of each part of the polymer base layer 4, and then the two parts are superimposed and bonded to form the base layer flow channel 6.

[0041] A power column cavity 7 and a piston column cavity 8 are provided inside the corner control block 3, and the power column cavity 7 and the piston column cavity 8 are connected to each other. A movable column hammer 9 is movably provided inside the power column cavity 7, and a limit wall ring 10 is fixedly provided on the inner wall surface of the power column cavity 7;

[0042] A primary connecting tube 11 is inserted in the limiting wall ring 10, a secondary connecting tube 12 is fixedly provided at the end of the primary connecting tube 11, a piston part 13 is fixedly provided at the end of the secondary connecting tube 12, and the piston part 13 is slidingly sealed inside the piston column cavity 8. The piston part 13 and the piston column cavity 8 are preferably sealed by a sliding sealing ring made of Teflon material. Since the sliding sealing ring made of Teflon material has an extremely low friction coefficient and excellent chemical stability, it hardly reacts with any chemical substances, which can ensure that the life of the piston part 13 and the piston column cavity 8 is long enough, almost synchronized with the battery life.

[0043] The primary connecting pipe 11 is hammered by the inertia of the movable column hammer 9 , so that the piston portion 13 moves in the piston column cavity 8 , thereby driving the electrolyte to flow in the base flow channel 6 .

[0044] A support spring 701 is provided below the movable column hammer 9, and a rebound spring 702 is provided above the movable column hammer 9; when the energy storage battery device shakes, the movable column hammer 9 bounces back and forth inside the power column chamber 7 through the support and rebound of the support spring 701 and the rebound spring 702. During the process, the movable column hammer 9 intermittently hammers the end of the first-stage connecting pipe 11.

[0045] A suction tray 703 is fixedly provided on the surface of the first-level connecting pipe 11, and a suction spring 704 is provided below the suction tray 703. With the support of the suction spring 704, the first-level connecting pipe 11 can elastically reset after being hammered by the movable column hammer 9, thereby driving the piston column cavity 8 to reset and move upward.

[0046] A buffer column cavity 705 is provided inside the corner control block 3, and the buffer column cavity 705 is connected to the lower end of the piston column cavity 8; a corrugated partition 706 is provided in the buffer column cavity 705, and an output wall hole 707 is provided on the side wall surface of the buffer column cavity 705 above the corrugated partition 706, and the output wall hole 707 is used to communicate with the base flow channel 6.

[0047] A flow limit disk 708 is fixedly installed inside the buffer column cavity 705 above the corrugated partition 706, and a liquid inlet channel 709 is opened inside the corner control block 3. One end of the liquid inlet channel 709 is connected to the internal electrolyte of the packaging shell 1, and the other end of the liquid inlet channel 709 is connected to the area of ​​the buffer column cavity 705 above the flow limit disk 708.

[0048] One-way valves 710 are respectively provided in the liquid inlet channel 709 and the flow direction limiting disk 708. The one-way valve 710 correspondingly provided on the liquid inlet channel 709 allows the electrolyte inside the packaging shell 1 to flow unidirectionally toward the liquid inlet channel 709; the one-way valve 710 correspondingly provided on the flow direction limiting disk 708 allows the electrolyte flowing above the flow direction limiting disk 708 to flow unidirectionally toward the bottom of the flow direction limiting disk 708.

[0049] A leakage probe 301 is provided at the upper end of the piston column cavity 8. When electrolyte leakage occurs between the piston portion 13 and the piston column cavity 8, the leakage probe 301 can be used to detect it. The leakage probe 301 is connected to the battery protection circuit board through a wire hidden in the corner control block 3. The battery protection circuit board integrates a microcircuit module with functions such as cell control and safety protection, which can increase the monitoring function of the leakage probe 301. Figure 6 As shown in , multiple groups of leakage probes 301 are provided. When the electrolyte leaks, the leakage probes 301 will be interconnected due to the conductive property of the electrolyte, thereby achieving detection.

[0050] An annular glue groove 302 is provided on the outer surface of the piston part 13 near the upper end, and a glue outlet hole 303 is provided in the annular glue groove 302. The annular glue groove 302 is connected to the inner cavity of the secondary connecting pipe 12 through the glue outlet hole 303; a gel body 304 is provided in the secondary connecting pipe 12, and a glue blocking disk 305 for sealing the gel body 304 is provided below the gel body 304. A lifting spring 306 is provided below the glue blocking disk 305, and the lifting spring 306 supports the glue blocking disk 305 upward.

[0051] A glue pressing shaft 307 is inserted into the secondary connecting pipe 12 . The glue pressing shaft 307 is located above the gel body 304 and forms a seal above the gel body 304 .

[0052] A compressed air cavity 308 is provided in the primary connecting pipe 11, and an electric fusion head 309 is connected to the lower part of the compressed air cavity 308. The compressed air cavity 308 stores gas in a compressed state and is sealed by the electric fusion head 309. A control wire 310 is connected to the electric fusion head 309. Power supplied by the control wire 310 can melt the electric fusion head 309, thereby releasing the compressed gas in the compressed air cavity 308; the control wire 310 is sealed and inserted through the side wall of the primary connecting pipe 11, and extends to the outside for circuit connection. Specifically, the control wire 310 is connected to the battery protection circuit board through a wire hidden in the corner control block 3. After receiving the signal of the leakage probe 301, the battery protection circuit board supplies power to the control wire 310 for a period of time.

[0053] The first-level connecting pipe 11 is provided with a pushing piston 311 for internal sealing and sliding. The pushing piston 311 is located below the electric fusion sealing head 309 and is fixedly installed with the glue pressing shaft 307.

[0054] A push-disc 312 is fixedly provided on the glue pressing shaft 307, a side wall groove 313 is provided on the primary connecting pipe 11, a limit card block 314 is provided inside the side wall groove 313, and an array card groove 315 is provided on the inner wall surface of the limit wall ring 10; when the push-disc 312 moves downward, the push-disc 312 squeezes the limit card block 314, so that the limit card block 314 extends out of the side wall groove 313 and is stuck in the array card groove 315, thereby locking the position of the primary connecting pipe 11.

[0055] The corner control block 3 is provided with a receiving vertical groove 201, in which a first adhesive strip 202 and a second adhesive strip 203 are provided. The receiving vertical groove 201 and the second adhesive strip 203 are sealed and bonded to one end of the negative electrode composite copper foil 2 with an adhesive, so that one end of the negative electrode composite copper foil 2 is sealed and embedded in the corner control block 3.

[0056] A reserved cavity 204 is reserved between the first adhesive strip 202 and the second adhesive strip 203 , and the output wall hole 707 is connected to the base flow channel 6 through the reserved cavity 204 .

[0057] The energy storage battery device with composite copper foil integrated in the negative electrode current collector of the present invention is used in a car, electric vehicle or other vibrating places. The energy storage battery device is shaken by the outside world, so that the movable column hammer 9 generates power.

[0058] See Figure 7As shown in the figure, the movable column hammer 9 is elastically supported by the support spring 701, and the movable column hammer 9 is rebounded by the rebound spring 702, so that the movable column hammer 9 bounces up and down, and intermittently hammers the first-level connecting pipe 11 downward at a certain amplitude, and the piston part 13 moves downward in the piston column cavity 8 through the conduction of the first-level connecting pipe 11 and the second-level connecting pipe 12; after the hammering disappears, under the elastic supporting force of the absorption spring 704, the structures such as the first-level connecting pipe 11, the second-level connecting pipe 12 and the piston part 13 elastically move up and reset.

[0059] The piston portion 13 is shown to move up and down in the piston column cavity 8, see Figure 6 As shown in the figure, when the piston portion 13 moves downward relative to the piston column cavity 8, the electrolyte in the piston column cavity 8 is pushed by the piston portion 13, flows to the top of the corrugated partition 706 through the flow limit plate 708, and is evenly dispersed into the base flow channel 6 through the output wall hole 707 and the reserved cavity 204, and flows in the base flow channel 6, thereby improving the heat uniformity of the negative electrode composite copper foil 2.

[0060] When the piston portion 13 moves upward relative to the piston column cavity 8, negative pressure is generated below the piston portion 13. At this time, the one-way valve 710 closes the flow limit disc 708, while the liquid inlet channel 709 opens. The electrolyte in the packaging shell 1 is replenished and sucked into the interior of the piston column cavity 8 through the liquid inlet channel 709 to achieve circulation.

[0061] During the above process, the electrolyte is ejected in streams through the flow limiting plate 708 onto the top of the corrugated barrier 706. The elastic deformation and expansion of the corrugated barrier 706 provide a buffering effect, allowing the electrolyte to be transported more smoothly and slowly into the base flow channel 6. Below the corrugated barrier 706 is a sealed gas chamber. The gas below the corrugated barrier 706 is elastically compressed, providing elastic support for the corrugated barrier 706, enabling the corrugated barrier 706 to provide elastic buffering.

[0062] Due to the relative friction between the piston portion 13 and the piston column cavity 8, when the electrolyte leaks due to wear and tear after long-term use, the electrolyte escapes to the upper end of the piston column cavity 8, such as Figure 6 As shown in FIG, when the electrolyte contacts the leakage probe 301, detection is achieved through the leakage probe 301, and then the control wire 310 is energized, as shown in FIG. Figure 9 As shown in FIG, by supplying power to the control wire 310, the electric fusion sealing head 309 is melted, thereby releasing the compressed gas in the compressed gas chamber 308, and the compressed gas pushes the pushing piston 311 and the glue pressing shaft 307 to move downward.

[0063] During the downward movement of the glue pressing shaft 307, Figure 10As shown in FIG, the gel 304 is driven downward by the glue pressing shaft 307, pushing the glue blocking plate 305 downward. When the glue blocking plate 305 is lower than the glue outlet hole 303, the gel 304 diffuses through the glue outlet hole 303 into the annular glue groove 302, filling the space between the piston portion 13 and the piston column cavity 8, thereby further supplementing the seal. At the same time, the glue pressing shaft 307 drives the push plate 312 downward. The push plate 312 squeezes and drives the limit block 314 to expand outward, thereby causing the limit block 314 to be locked in the array card slot 315, thereby locking the primary connecting pipe 11 and the limit wall ring 10 in position, stopping the vertical movement of the primary connecting pipe 11 and the piston portion 13, and prioritizing the prevention of electrolyte leakage into the power column cavity 7, causing electrolyte loss and further malfunction.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An energy storage battery device with a composite copper foil integrated into a negative electrode current collector, comprising a packaging shell and a negative electrode composite copper foil disposed within the packaging shell, characterized in that: A corner control block is provided at one corner of the packaging shell, and one end of the negative electrode composite copper foil is sealed and embedded in the corner control block; The negative electrode composite copper foil comprises a polymer base layer and a copper foil layer, wherein the copper foil layer is symmetrically covered on both sides of the polymer base layer. A base flow channel is opened in the polymer base layer along its length direction. The electrolyte is drawn through the edge control block and transported to the base flow channel under positive pressure, so that the electrolyte flows in the base flow channel. The corner control block is provided with a power column cavity and a piston column cavity inside, and the power column cavity and the piston column cavity are connected to each other, a movable column hammer is movably provided inside the power column cavity, and a limiting wall ring is fixedly provided on the inner wall surface of the power column cavity; a primary connecting pipe is inserted through the limiting wall ring, a secondary connecting pipe is fixedly provided at the end of the primary connecting pipe, and a piston part is fixedly provided at the end of the secondary connecting pipe, and a sliding seal of the piston part is provided inside the piston column cavity, and the primary connecting pipe is hammered by the active inertia of the movable column hammer, so that the piston part moves in the piston column cavity, thereby driving The electrolyte flows in the base flow channel; an annular glue groove is provided on the outer surface of the piston portion near the upper end, and a glue outlet hole is provided in the annular glue groove, which is connected to the inner cavity of the secondary connecting pipe through the glue outlet hole; a gel body is provided in the secondary connecting pipe, and a glue blocking disk for sealing the gel body is provided below the gel body, and a lifting spring is provided below the glue blocking disk, and the glue blocking disk is supported upward by the lifting spring; a glue pressing shaft is inserted into the secondary connecting pipe, and the glue pressing shaft is located above the gel body and forms a seal above the gel body; The cam is provided with a plurality of camshafts, each of which is connected to the bottom of the camshaft and the bottom of the cam. The cam is provided with a plurality of camshafts, each of which is connected to the bottom of the cam. The cam is provided with a plurality of camshafts, each of which is connected to the bottom of the cam.

2. The energy storage battery device with a composite copper foil integrated into the negative electrode current collector according to claim 1, characterized in that: A support spring is provided below the movable column hammer, and a rebound spring is provided above the movable column hammer; when the energy storage battery device shakes, the movable column hammer bounces back and forth inside the power column cavity through the support and rebound of the support spring and the rebound spring, and during the process, the movable column hammer intermittently hammers the end of the first-stage connecting pipe.

3. The energy storage battery device with a composite copper foil integrated into the negative electrode current collector according to claim 1, characterized in that: A suction tray is fixedly provided on the surface of the first-level connecting pipe, and a suction spring is provided below the suction tray. With the support of the suction spring, the first-level connecting pipe can be elastically reset after being hammered by the movable column hammer, thereby driving the piston column cavity to reset and move upward.

4. The energy storage battery device with a composite copper foil integrated into the negative electrode current collector according to claim 1, characterized in that: A leakage probe is provided at the upper end of the piston column cavity. When electrolyte leakage occurs between the piston portion and the piston column cavity, detection can be achieved through the leakage probe.

5. The energy storage battery device with a composite copper foil integrated into the negative electrode current collector according to claim 4, characterized in that: A compressed air cavity is provided in the first-level connecting pipe, and an electric fusion head is connected to the lower part of the compressed air cavity. The compressed air cavity stores gas in a compressed state and is sealed by the electric fusion head. A control wire is connected to the electric fusion head. The electric fusion head can be melted by supplying power through the control wire, thereby releasing the compressed gas in the compressed air cavity; the control wire is sealed and inserted through the side wall of the first-level connecting pipe and extends to the outside for circuit connection.

6. The energy storage battery device with a composite copper foil integrated into the negative electrode current collector according to claim 5, characterized in that: The pushing piston is located below the electric fusion head; A push-disc is fixedly provided on the glue pressing shaft, a side wall groove is provided on the primary connecting pipe, a limit card block is provided inside the side wall groove, and an array card slot is provided on the inner wall surface of the limit wall ring; when the push-disc moves downward, the push-disc squeezes the limit card block, so that the limit card block extends from the side wall groove and is stuck in the array card slot, thereby locking the position of the primary connecting pipe.

7. The energy storage battery device with a composite copper foil integrated into the negative electrode current collector according to claim 1, characterized in that: The corner control block is provided with a vertical accommodating groove, in which a first adhesive strip and a second adhesive strip are provided. The vertical accommodating groove and the second adhesive strip cooperate with an adhesive to seal and bond one end of the negative electrode composite copper foil, so that the one end of the negative electrode composite copper foil is sealed and embedded in the corner control block; A reserved cavity is reserved between the first adhesive strip and the second adhesive strip, and the output wall hole is communicated with the base flow channel through the reserved cavity.

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