A multi-channel pneumatic pressurized battery test chamber system for all-solid-state battery molds

Abstract

The present invention discloses a multi-channel pneumatic pressurized battery test chamber system for all-solid-state battery molds, which includes a glove box, a multi-channel pneumatic pressurized battery test chamber matrix arranged in the glove box, a gas pressure control valve, and a multi-channel battery tester; the multi-channel pneumatic pressurized battery test chamber matrix includes a cabinet with grids and a battery test chamber unit; the battery test chamber unit includes a test chamber box, a fixed test pole, an all-solid-state battery mold arranged on the fixed test pole, a cylinder arranged on the test chamber box, and a movable test pole connected to the piston of the cylinder and located in the test chamber box. The present invention uses a cylinder pressurization method, which has uniform force and a simple pressurization process. The pressurization device is designed as a chamber body to achieve modular stacking. The battery test chamber can be increased or decreased according to the needs of the test channel, effectively utilizing the three-dimensional space of the glove box and realizing that hundreds of all-solid-state batteries can be tested simultaneously in the glove box.

Description

Technical Field

[0001] The present invention relates to the technical field of battery testing systems, and in particular to a multi-channel pneumatic pressurized battery testing chamber system for an all-solid-state battery mold. Background Art

[0002] With rising productivity and increasing car prices, cars have become increasingly affordable, making them ubiquitous in every household. However, this has also brought with it a host of problems. Currently, all cars are fuel-powered, relying on the combustion of fossil fuels to generate kinetic energy. However, the exhaust produced by fossil fuel combustion contains various pollutants, including carbon dioxide, nitrogen oxides, and suspended solid particles, causing serious environmental pollution. Furthermore, the Earth's fossil fuel reserves are limited. As consumption increases, fossil fuels are depleted at a faster rate, potentially leading to an energy crisis.

[0003] Since their introduction in the 1990s, lithium batteries have been widely used in various applications due to their high voltage, high specific energy, long charge and discharge life, no memory effect, minimal environmental pollution, fast charging, and low self-discharge rate. Due to these advantages, lithium batteries are widely used as power batteries in automobiles.

[0004] Existing lithium batteries use organic electrolytes, which pose safety issues such as flammability and explosion. Compared to existing liquid lithium batteries, all-solid-state lithium batteries are one of the most promising technologies to replace existing high-energy-density lithium batteries. All-solid-state lithium batteries offer longer cycle life and service life, higher rate performance, and an energy density that can reach 2-5 times that of existing lithium batteries, fundamentally resolving the safety issues of existing liquid lithium batteries.

[0005] At present, all-solid-state lithium batteries use solid electrolytes, and there are four main types of solid electrolytes: sulfide solid electrolytes, oxide solid electrolytes, halide solid electrolytes, and polymer solid electrolytes. Sulfide solid electrolytes have a high electrical conductivity (up to 27mS / cm) comparable to the organic electrolytes of traditional liquid lithium batteries, making them the most likely of the four major types of solid electrolytes to be used in all-solid-state lithium batteries. However, sulfide solid electrolytes are very sensitive to moisture in the air. Even a small amount of moisture will react with the sulfide solid electrolyte, thereby affecting the performance of the material. Therefore, the assembly of sulfide all-solid-state lithium batteries needs to be carried out in a glove box filled with inert gas.

[0006] Due to the characteristics of all-solid-state lithium batteries, they require pressure testing during the charging and discharging process. Currently, existing all-solid-state lithium battery molds are pressurized through the combination of screws and bolts or similar structures. Generally, an all-solid-state battery mold requires 3-4 screws, and two wrenches are used to simultaneously tighten the screws and bolts in opposite directions to achieve pressurization of the all-solid-state battery mold. Because the entire process is carried out in a glove box, the flexibility of tightening the wrenches is reduced, and tightening the screws and bolts takes a long time. In addition, due to uneven force during the tightening process, each screw will cause uneven force on the all-solid-state battery in the all-solid-state battery mold, affecting the battery performance test of the all-solid-state battery.

[0007] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0008] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a multi-channel pneumatic pressurized battery testing chamber system for all-solid-state battery molds, aiming to solve the problems of low testing efficiency and inconvenient operation of existing all-solid-state battery molds.

[0009] The technical solutions of the present invention are as follows:

[0010] A multi-channel pneumatic pressurized battery test chamber system for all-solid-state battery molds, comprising a glove box, a multi-channel pneumatic pressurized battery test chamber matrix arranged in the glove box, a gas pressure control valve connected to the multi-channel pneumatic pressurized battery test chamber matrix through an air pipe, and a multi-channel battery tester electrically connected to the multi-channel pneumatic pressurized battery test chamber matrix through a wire; the multi-channel pneumatic pressurized battery test chamber matrix comprises a group cabinet provided with grids and a battery test chamber unit fixedly arranged in each grid in the group cabinet; the battery test chamber unit comprises a test chamber box body, a A fixed test pole placed in the test chamber box, a fixed test pole wire welded to the fixed test pole, an all-solid-state battery mold arranged on the fixed test pole, a cylinder arranged on the test chamber box, a movable test pole connected to the piston of the cylinder and located in the test chamber box, and a movable test pole wire welded to the movable test pole; the all-solid-state battery mold includes a lower top mold arranged on the fixed test pole, an upper top mold located below the movable test pole, an insulating sleeve located between the upper top mold and the lower top mold, and an all-solid-state battery fixed in the insulating sleeve.

[0011] The all-solid-state battery mold multi-channel pneumatic pressurized battery testing chamber system, wherein the upper top mold and the lower top mold are made of tool steel, and the sleeve is made of ceramic or plastic.

[0012] The all-solid-state battery mold multi-channel pneumatic pressurized battery testing chamber system, wherein the cylinder is provided with a cylinder air pipe joint A, a cylinder air pipe joint B, a hand-pull valve air pipe joint C, a hand-pull valve air pipe joint D, a hand-pull valve air pipe joint E, a hand-pull valve body and a hand-pull valve switch; the cylinder air pipe joint A and the hand-pull valve air pipe joint C are connected by an air pipe, the cylinder air pipe joint B and the hand-pull valve air pipe joint D are connected by an air pipe, the hand-pull valve air pipe joint E is connected to the air outlet end of the air pipe multi-way joint arranged in the glove box through the air pipe, and the gas pressure control valve is connected to the air inlet end of the air pipe multi-way joint through the air pipe.

[0013] The all-solid-state battery mold multi-channel pneumatic pressurized battery test chamber system, wherein a hole is provided on the back of each grid in the group cabinet, and the fixed test pole wire and the movable test pole wire in each battery test chamber unit are led to the back of the group cabinet through the hole for fixation and wiring harness together; the air pipe connected to the pull valve air pipe connector E in each battery test chamber unit is led to the back of the group cabinet through the hole for fixation and wiring harness together.

[0014] The all-solid-state battery mold multi-channel pneumatic pressurized battery test chamber system, in which the fixed test pole wires and the movable test pole wires of the fixed wiring harness at the back of the cabinet are sealed and connected to the multi-channel battery tester outside the glove box through the flange opening of the glove box.

[0015] Beneficial effects: The present invention provides a multi-channel pneumatic pressurized battery test chamber system for all-solid-state battery molds, which uses cylinder pressurization to replace traditional screw and screw pressurization. The force is uniform and the pressurization process is simple. The pressurization device is designed to be a chamber type to achieve modular stacking. The battery test chamber can be increased or decreased according to the needs of the test channel, and the three-dimensional space of the glove box is effectively utilized, so that hundreds of all-solid-state batteries can be tested simultaneously in the glove box; the single battery test chamber unit in the present invention can control the cylinder activity through a hand-pull valve to control the up and down movement of the movable test pole to achieve clamping contact with the all-solid-state battery mold, and the all-solid-state battery mold can be conveniently and simply taken in and out, and the pressure applied to the all-solid-state battery is controllable and adjustable; the present invention also systematically harnesses and fixes the test wires, thereby avoiding interference of the movable wires with other all-solid-state battery tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main view of the all-solid-state battery mold.

[0017] Figure 2 This is the front view of a single battery test compartment unit.

[0018] Figure 3 This is the right side view of the battery test compartment unit.

[0019] Figure 4 A perspective view of a multi-channel pneumatic pressurized battery test chamber matrix.

[0020] Figure 5 This is a structural schematic diagram of a multi-channel pneumatic pressurized battery testing chamber system for an all-solid-state battery mold according to the present invention.

[0021] Lower top mold 101; insulating sleeve 102; upper top mold 103; fixed test pole 104; test chamber box 105; movable test pole 106; cylinder 107; fixed test pole wire 108; movable test pole wire 109; cylinder air pipe connector A110; cylinder air pipe connector B111; hand-pull valve air pipe connector C112; hand-pull valve air pipe connector D113; hand-pull valve switch 114; hand-pull valve body 115; hand-pull valve air pipe connector E116; battery test chamber unit 117; cabinet 118; glove box 119; multi-channel pneumatic pressurized battery test chamber matrix 120; gas pressure control valve 121; air pipe 122; multi-channel air pipe connector 123; test wire 124; multi-channel battery tester 125. DETAILED DESCRIPTION

[0022] The present invention provides a multi-channel pneumatic pressurized battery testing chamber system for all-solid-state battery molds. To clarify the objectives, technical solutions, and effects of the present invention, the present invention is described in further detail below. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention.

[0023] See also Figure 1-Figure 5 The present invention provides a multi-channel pneumatic pressurized battery test chamber system for all-solid-state battery molds, wherein: Figure 1 This is the main view of the all-solid-state battery mold. As shown in the figure, the all-solid-state battery mold is composed of the following components: a lower top mold 101, an insulating sleeve 102, an upper top mold 103, and an all-solid-state battery fixed in the insulating sleeve 102. The lower top mold and the upper top mold are both made of tool steel with good conductivity, and the insulating sleeve 102 is made of ceramic or plastic material with a certain strength. The present invention uses the upper top mold 103 and the lower top mold 101 to pressurize the all-solid-state battery and connect the wires to conduct the circuit.

[0024] like Figure 2-3 As shown, the battery test chamber unit 117 is composed of the following components: a fixed test pole 104; a test chamber body 105; a movable test pole 106; a cylinder 107; a fixed test pole wire 108; a movable test pole wire 109; a cylinder air pipe joint A110; a cylinder air pipe joint B111; a hand-pull valve air pipe joint C112; a hand-pull valve air pipe joint D113; a hand-pull valve body 115; a hand-pull valve switch 114; and a hand-pull valve air pipe joint E116.

[0025] In this embodiment, the fixed test pole 104 and movable test pole 106 are both disposed within the test chamber housing 105. The cylinder 107 is disposed at the top end of the test chamber housing 105. The piston of the cylinder 107 penetrates from the top end of the test chamber housing 105 into the interior of the test chamber housing 105. The movable test pole 106 is connected to the piston of the cylinder 107. The cylinder air pipe connector A110, cylinder air pipe connector B111, hand-pull valve air pipe connector C112, hand-pull valve air pipe connector D113, hand-pull valve air pipe connector E116, hand-pull valve body 115, and hand-pull valve switch 114 are all disposed on the cylinder. The fixed test pole 104 and the fixed test pole wire 108 are connected by welding, and the movable test pole 106 and the movable test pole wire 109 are connected by welding. The fixed test pole 104 and the movable test pole 106 are both made of metal with excellent electrical conductivity, such as iron or copper. The test chamber housing 105 is made of a strong insulating material. The cylinder air pipe connector A110 and the hand-operated valve air pipe connector C112 are connected via an air pipe, with the air pipe and the connector connected by a straight-plug connection. The cylinder air pipe connector B111 and the hand-operated valve air pipe connector D113 are connected via an air pipe, with the air pipe and the connector connected by a straight-plug connection. The hand-operated valve air pipe connector E116 is connected via an air pipe to the outlet of the air pipe multi-way connector 123 located inside the glove box, with the air pipe and the connector connected by a straight-plug connection.

[0026] In this embodiment, the all-solid-state battery mold is placed in the test chamber housing 105, and the lower top mold 101 is placed on the fixed test pole 104. The upper top mold 103 is located below the movable test pole 106. By controlling the hand-pull valve switch 114, the movement of the piston in the cylinder 107 can be controlled, thereby controlling the up and down movement of the movable test pole 106. The all-solid-state battery mold with the all-solid-state battery installed is placed in the test chamber housing 105, and the hand-pull valve switch 114 is pressed. The movable test pole 106 moves downward due to the drive of the cylinder, so that the movable test pole 106 contacts the upper top mold 103, and pressurizes the all-solid-state battery mold, thereby pressurizing the all-solid-state battery; the manual valve switch 114 is pulled outward, and the movable test pole 106 moves upward, removing the pressure on the all-solid-state battery, and the all-solid-state battery mold can be removed from the battery test chamber unit.

[0027] In this embodiment, a single battery test chamber unit can control the cylinder activity through the hand-pull valve switch 114 and then control the up and down movement of the movable test pole 106, thereby realizing clamping contact with the all-solid-state battery mold. The all-solid-state battery mold is convenient and simple to take and place, and the pressure applied to the all-solid-state battery is controllable and adjustable.

[0028] like Figure 4-Figure 5As shown, the multi-channel pneumatic pressurized battery testing chamber system for all-solid-state battery molds includes a glove box 119, a multi-channel pneumatic pressurized battery testing chamber matrix 120 arranged in the glove box 119, a gas pressure control valve 121 connected to the multi-channel pneumatic pressurized battery testing chamber matrix 120 through an air pipe 122, and a multi-channel battery tester 125 electrically connected to the multi-channel pneumatic pressurized battery testing chamber matrix 120 through a wire 124; the multi-channel pneumatic pressurized battery testing chamber matrix 120 includes a group cabinet 118 provided with grids and a battery testing chamber unit 117 fixedly arranged in each grid in the group cabinet 118.

[0029] In this embodiment, the back of each compartment in the cabinet 118 is provided with a hole. The fixed test electrode wires 108 and movable test electrode wires 109 in each battery test compartment unit 117 are led through the hole to the back of the cabinet for fixation and wiring harness. The air pipes connected from the pull-valve air pipe connector E in each battery test compartment unit 117 are led through the hole to the back of the cabinet for fixation and wiring harness. Multiple air pipes fixed to the back of the cabinet are connected to the multiple outlets of a single multi-channel air pipe connector 123. The air inlet of the multi-channel air pipe connector 123 is then sealed via a single air pipe 122 to the air outlet of a gas pressure control valve 121 via a flange. The air inlet of the gas pressure control valve 121 is connected to a high-pressure inert compressed gas supplied by the air pipe. By controlling the valve opening and closing of the gas pressure control valve 121, the pressure in the battery test compartment cylinder can be controlled, thereby controlling the pressure applied to the all-solid-state battery, making the pressure applied by the all-solid-state battery controllable and adjustable. The multiple test leads of the wiring harness fixed on the back of the cabinet are sealed through the flange of the glove box to the multi-channel battery tester 125 outside the glove box. Through the connection of the test leads, the battery tester 125 completes the battery performance test of multiple all-solid-state batteries in the glove box.

[0030] The present invention designs a new all-solid-state battery mold multi-channel pneumatic pressurized battery compartment testing system, which systematically harnesses and fixes the test wires and air tubes, thereby avoiding the interference of active wires and air tubes on other all-solid-state battery tests; and the battery compartment testing system of the present invention can be modularly stacked, and the battery test compartment units can be increased or decreased according to the needs of the test channels, and the three-dimensional space of the glove box is effectively utilized, so that hundreds of all-solid-state batteries can be tested simultaneously in the glove box.

[0031] To sum up, in view of the current method of screw pressurization of all-solid-state battery molds, there are problems of cumbersome screw tightening and uneven force during the pressurization process. The present invention designs a multi-channel pneumatic pressurized battery testing chamber system for all-solid-state battery molds. By using cylinder pressurization to replace the traditional screw tightening and screw pressurization, the force is uniform and the pressurization process is simple. The pressurizing device is designed to be a chamber type to achieve modular stacking, and effectively utilizes the three-dimensional space of the glove box, so that hundreds of all-solid-state batteries can be tested simultaneously in the glove box; the single battery test chamber unit in the present invention can control the cylinder activity through a hand-pull valve and then control the up and down movement of the movable test pole to achieve clamping contact with the all-solid-state battery mold. The all-solid-state battery mold is convenient and simple to take and put, and the pressure applied to the all-solid-state battery is controllable and adjustable; the present invention also systematically harnesses and fixes the test wires, thereby avoiding interference of the movable wires with other all-solid-state battery tests.

[0032] It should be understood that the application of the present invention is not limited to the above examples. For those skilled in the art, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A multi-channel pneumatic pressurized battery test chamber system for all-solid-state battery molds, characterized in that: It includes a glove box, a multi-channel pneumatic pressurized battery test chamber matrix arranged in the glove box, a gas pressure control valve connected to the multi-channel pneumatic pressurized battery test chamber matrix through an air pipe, and a multi-channel battery tester electrically connected to the multi-channel pneumatic pressurized battery test chamber matrix through a wire; the multi-channel pneumatic pressurized battery test chamber matrix includes a cabinet with grids and a battery test chamber unit fixedly arranged in each grid of the cabinet; the battery test chamber unit includes a test chamber box body, a fixed test pole arranged in the test chamber box body, a fixed test pole wire welded to the fixed test pole, an all-solid-state battery mold arranged on the fixed test pole, a cylinder arranged on the test chamber box body, a movable test pole connected to the piston of the cylinder and located in the test chamber box body, and a movable test pole wire welded to the movable test pole; the all-solid-state battery mold includes a lower top mold arranged on the fixed test pole, an upper top mold located below the movable test pole, an insulating sleeve located between the upper top mold and the lower top mold, and an all-solid-state battery fixed in the insulating sleeve; The cylinder is provided with a cylinder air pipe joint A, a cylinder air pipe joint B, a hand-pull valve air pipe joint C, a hand-pull valve air pipe joint D, a hand-pull valve air pipe joint E, a hand-pull valve body and a hand-pull valve switch; the cylinder air pipe joint A and the hand-pull valve air pipe joint C are connected by an air pipe, the cylinder air pipe joint B and the hand-pull valve air pipe joint D are connected by an air pipe, the hand-pull valve air pipe joint E is connected to the air outlet end of the air pipe multi-way joint arranged in the glove box through the air pipe, and the gas pressure control valve is connected to the air inlet end of the air pipe multi-way joint through the air pipe.

2. The all-solid-state battery mold multi-channel pneumatic pressurized battery testing chamber system according to claim 1 is characterized in that: The upper top die and the lower top die are made of tool steel, and the sleeve is made of ceramic or plastic.

3. The all-solid-state battery mold multi-channel pneumatic pressurized battery testing chamber system according to claim 1, characterized in that: There are holes on the back of each grid in the cabinet, and the fixed test pole wires and the movable test pole wires in each battery test compartment unit are led to the back of the cabinet through the holes for fixation and wiring harness together; the air pipe connected to the hand-pull valve air pipe joint E in each battery test compartment unit is led to the back of the cabinet through the holes for fixation and wiring harness together.

4. The all-solid-state battery mold multi-channel pneumatic pressurized battery testing chamber system according to claim 3 is characterized in that: The fixed test pole wires and the movable test pole wires of the wiring harness fixed at the back of the cabinet are sealed and connected to the multi-channel battery tester outside the glove box through the flange opening of the glove box.

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