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

Abstract

The present invention discloses a multi-channel battery test chamber system for all-solid-state battery molds, which includes a glove box, a test cabinet arranged in the glove box, a battery test chamber arranged in the test cabinet, and a multi-channel battery tester electrically connected to the battery test chamber via wires; the battery test chamber includes a test box body, an all-solid-state battery mold placed in the test box body, a test box door rotatably connected to the test box body, a spring test pole arranged at the bottom of the test box body, a fixed test pole arranged on the test box door, a toggle switch and a spring lock tongue arranged on the test box door, and a lock port adapted to the spring lock tongue arranged on the test box door. The battery test chamber of the present invention achieves clamping contact with the all-solid-state battery mold through the movement of the spring test pole, resulting in better contact; the battery test chambers in the present invention can be modularly stacked together, and the battery test chambers can be increased or decreased according to the needs of the test channels, effectively utilizing the three-dimensional space of 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 battery testing chamber system for an all-solid-state battery mold. Background Art

[0002] Since their introduction in the 1990s, lithium batteries have been widely used in various applications due to their advantages, including high voltage, high specific energy, long charge and discharge life, no memory effect, low environmental pollution, fast charging, and low self-discharge rate. Lithium batteries have gradually expanded from mobile phones, laptops, digital cameras, and small portable appliances to electric vehicles. Amidst increasingly severe global energy and environmental challenges, vehicles are increasingly turning to energy storage batteries as their primary power source. Lithium batteries are considered an ideal choice for high-capacity, high-power batteries.

[0003] However, because existing lithium batteries use organic electrolytes, they present 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.

[0004] Currently, all-solid-state lithium batteries use solid electrolytes, which fall into four main categories: sulfide solid electrolytes, oxide solid electrolytes, halide solid electrolytes, and polymer solid electrolytes. Sulfide solid electrolytes have high electrical conductivity (up to 27 mS / cm), comparable to the organic electrolytes used in traditional liquid lithium batteries. Therefore, they hold the greatest potential for application in all-solid-state lithium batteries. However, sulfide solid electrolytes are highly sensitive to moisture in the air; even the slightest amount of moisture can react with them, affecting the material's performance. Therefore, the assembly of sulfide all-solid-state lithium batteries must be performed within an inert gas-filled glove box. Currently, two main types of all-solid-state battery molds are used for charge and discharge testing of sulfide all-solid-state lithium batteries: a simple, unsealed all-solid-state battery mold and a sealed one. The former type of all-solid-state battery mold is widely used in the assembly of sulfide prototype batteries due to its simplicity, relatively low cost, simple assembly, no need for testing outside the glove box, and high testing stability.

[0005] However, this type of all-solid-state battery mold currently has certain problems. Since this type of all-solid-state battery mold currently uses alligator clips on the long top mold and the short top mold, and the wires connected to the alligator clips are then connected to the battery test outside the glove box through the flange of the glove box, when a small number of all-solid-state batteries are tested, the impact is not significant. However, when the number of all-solid-state batteries tested reaches a certain number, since the wires connected to the alligator clips are not fixed and can move, when a new all-solid-state battery is to be tested or an old all-solid-state battery is to be removed, the alligator clips need to be removed from the long top mold or short top mold of the all-solid-state battery mold or connected. At this time, the movement of the alligator clips will cause the wires on the alligator clips to move, and the movement of the wires will interfere with the nearby wires, which may cause the wires and the alligator clips to fall off the long top mold or short top mold of the all-solid-state battery mold, thereby interrupting the testing of the all-solid-state battery in the all-solid-state battery mold. In summary, this method of directly connecting the wires to the crocodile clips and then connecting them to the all-solid-state battery mold through the crocodile clips may cause mutual interference during the wiring of the all-solid-state battery mold test, thereby affecting the battery performance test of the all-solid-state battery.

[0006] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0007] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a multi-channel battery testing chamber system for all-solid-state battery molds, aiming to solve the problem in the prior art that when testing multiple all-solid-state battery molds, there is interference between the wiring, resulting in low testing efficiency and inconvenient operation.

[0008] The technical solutions of the present invention are as follows:

[0009] A multi-channel battery test chamber system for an all-solid-state battery mold, comprising a glove box, several groups of test cabinets arranged horizontally side by side within the glove box, each group of test cabinets containing several vertically stacked battery test chambers, and a multi-channel battery tester electrically connected to the battery test chambers in the test cabinets via wires. The battery test chamber comprises a test chamber, an all-solid-state battery mold placed within the test chamber, a test chamber door rotatably connected to the test chamber, a spring test pole disposed at the bottom of the test chamber, a spring test pole wire connected to the spring test pole, a fixed test pole disposed on the test chamber door, a fixed test pole wire connected to the fixed test pole, a toggle switch and a spring lock tongue disposed on the test chamber door, and a lock port on the test chamber door adapted to the spring lock tongue. The all-solid-state battery mold comprises a lower top mold disposed to abut against the spring test pole, an upper top mold separated from or abutting against the fixed test pole, an insulating sleeve located between the upper and lower top molds, and an all-solid-state battery fixed within the insulating sleeve.

[0010] The all-solid-state battery mold multi-channel 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.

[0011] The all-solid-state battery mold multi-channel battery test chamber system, wherein the glove box is provided with 5 groups of test cabinets placed side by side in the horizontal direction, and each group of test cabinets is provided with 10 battery test chambers stacked in the vertical direction.

[0012] Beneficial effects: The present invention provides a multi-channel battery test chamber system for solid-state battery molds, in which a single battery test chamber adopts a box-type design, and the wires are fixed on the box, thereby avoiding interference with other all-solid-state battery molds; the single battery test chamber of the present invention realizes clamping contact with the all-solid-state battery mold through the movement of the spring test pole, replacing the previous alligator clip contact, and the contact is better; the battery test chambers in the present invention can be modularly stacked together, and the battery test chambers 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional image of the all-solid-state battery mold.

[0014] Figure 2 This is a cross-sectional view of a single battery test compartment with the door closed.

[0015] Figure 3 A three-dimensional view of a single battery test compartment with the door open.

[0016] Figure 4 This is a three-dimensional diagram of the test cabinet.

[0017] Figure 5 This is a structural schematic diagram of a multi-channel battery testing chamber system for an all-solid-state battery mold according to the present invention.

[0018] Test box 1; test box door 2; spring test pole 3; spring test pole wire 4; fixed test pole 5; fixed test pole wire 6; toggle switch 7; spring lock tongue 8; lock 9; glove box 10; test cabinet 11; battery test compartment 12; wire 13; multi-channel battery tester 14; all-solid-state battery mold 20; lower top mold 21; upper top mold 22; insulating sleeve 23. DETAILED DESCRIPTION

[0019] The present invention provides a multi-channel battery test 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.

[0020] See also Figure 1-Figure 5 The present invention provides a multi-channel battery test chamber system for an all-solid-state battery mold, as shown in the figure, which includes a glove box 10, a plurality of test cabinets 11 arranged side by side in a horizontal direction in the glove box 10, each test cabinet 11 is provided with a plurality of battery test chambers 12 stacked in a vertical direction, and also includes a multi-channel battery tester 14 electrically connected to the battery test chambers 12 in the test cabinets 11 through wires 13; the battery test chamber 12 includes a test chamber 1, an all-solid-state battery mold 20 placed in the test chamber 1, a test chamber door 2 rotatably connected to the test chamber 1, and a spring arranged at the bottom of the test chamber 1. A test pole 3, a spring test pole wire 4 connected to the spring test pole 3, a fixed test pole 5 arranged on the test box door 2, a fixed test pole wire 6 connected to the fixed test pole 5, a toggle switch 7 and a spring lock tongue 8 arranged on the test box door 2, and a lock 9 arranged on the test box door 2 and adapted to the spring lock tongue 8; the all-solid-state battery mold 20 includes a lower top mold 21 arranged to abut against the spring test pole, an upper top mold 22 that is separated from or abuts against the fixed test pole, an insulating sleeve 23 located between the upper top mold 22 and the lower top mold 21, and an all-solid-state battery fixed in the insulating sleeve 23.

[0021] Specifically, in the present invention, the spring test pole 3 and the spring test pole wire 4 are connected by welding, and the fixed test pole 5 and the fixed test pole wire 6 are connected by welding. A single wire can be connected to the spring test pole 3 or the fixed test pole 5, or two wires (voltage wire and current wire) can be connected. The fixed test pole wire 6 is fixed along the groove on the edge of the test box 1, and is led to the back of the test box and the spring test pole wire 4 bundle together. Due to the presence of a spring inside the spring test pole 3, the spring test pole 3 can slide relatively to control the clamping of the all-solid-state battery mold. The movement of the spring lock tongue 8 is controlled by pushing the toggle switch 7, thereby controlling the opening and closing of the test box door 2. Push the toggle switch 7 to the left, and the spring lock tongue 8 moves to the left to open the test box door 2. Put the all-solid-state battery mold with the assembled all-solid-state battery into the test box body 1, push the test box door 2 inward by hand, and the spring test pole 3 shrinks and slides backward. When the test box door 2 is pushed to the angle of 0° between the box door and the test box body, the spring lock tongue 8 automatically snaps into the lock mouth 9. At this time, the test box door is closed, and the all-solid-state battery mold is clamped between the spring test pole 3 and the fixed test pole 5. The upper top mold of the all-solid-state battery mold contacts the fixed test pole, and the lower top mold of the all-solid-state battery mold contacts the spring test pole. At this time, the circuit is turned on, and the battery performance test can be carried out. The single battery test chamber in the present invention realizes the clamping contact of the all-solid-state battery mold through the opening and closing of the test box door 2 and the activity of the spring test pole, replacing the previous crocodile clip contact, and the contact is better.

[0022] In some embodiments, as Figure 3 As shown in the three-dimensional diagram of a single battery test chamber door opening, push the test chamber door 2 inward by hand. When the test chamber door 2 is pushed to the angle of 0° between the chamber door and the test chamber body, the spring lock tongue 8 is automatically stuck in the lock mouth 9; push the toggle switch to the left, and the spring lock tongue stuck in the lock mouth will withdraw from the lock mouth. Since the spring inside the spring test pole is in a tightened state, the all-solid-state battery mold is pushed outward at this time, and then the test chamber door is pushed outward to open. At this time, the all-solid-state battery mold that has been tested can be taken out.

[0023] In some embodiments, as Figure 4 As shown in the three-dimensional diagram of the test cabinet, a set of test cabinets can stack multiple battery test compartments (for example, 10) in the vertical direction as needed. Since the inner width of the test cabinet is similar to the outer width of a single battery test compartment, it ensures that the battery test compartment can be just stuck in the cabinet, thereby fixing the battery test compartment and preventing it from shaking. As needed, multiple groups of battery test compartment cabinets (for example, 5 groups) can be placed flat on one another in the horizontal direction, thereby realizing a modular stacking combination of battery test compartments. The wires of the fixed test pole and the spring test pole are led to the wiring harness at the back of the cabinet and fixed to the back of the cabinet.

[0024] In some embodiments, as Figure 5As shown, the test cabinet consists of multiple battery test chambers placed inside an inert glove box to prevent reactions between the sulfide solid electrolyte and moisture. Test leads from inside the glove box are connected via flanges to a multi-channel battery tester outside the glove box, allowing the battery tester to perform battery performance tests on multiple all-solid-state batteries inside the glove box.

[0025] In summary, the present invention designs a new all-solid-state battery mold multi-channel battery compartment testing system, which systematically bundles and fixes the test wires, thereby avoiding interference of active wires with other all-solid-state battery tests; the single battery test compartment of the present invention adopts a box-type design, and fixes the wires on the box, thereby avoiding interference with other all-solid-state battery molds; the single battery test compartment of the present invention realizes clamping contact with the all-solid-state battery mold through the activity of the spring test pole, replacing the previous alligator clip contact, and the contact is better; the battery test compartments in the present invention can be modularly stacked together, and the battery test compartments 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.

[0026] 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 battery test chamber system for all-solid-state battery molds, characterized in that: The present invention comprises a glove box, a plurality of test cabinets arranged side by side in a horizontal direction within the glove box, each test cabinet being provided with a plurality of battery test chambers stacked vertically, and a multi-channel battery tester electrically connected to the battery test chambers in the test cabinets via wires; the battery test chamber comprises a test box body, an all-solid-state battery mold placed within the test box body, a test box door rotatably connected to the test box body, a spring test pole arranged at the bottom of the test box body, a spring test pole wire connected to the spring test pole, a fixed test pole arranged on the test box door, a fixed test pole wire connected to the fixed test pole, a toggle switch and a spring lock tongue arranged on the test box door, and a lock port adapted for the spring lock tongue arranged on the test box door; the all-solid-state battery mold comprises a lower top mold arranged to abut against the spring test pole, an upper top mold separated from or abutting against the fixed test pole, an insulating sleeve located between the upper and lower top molds, and an all-solid-state battery fixed within the insulating sleeve; The upper mold and the lower mold are made of tool steel, and the sleeve is made of ceramic or plastic; The glove box is provided with 5 groups of test cabinets placed side by side in the horizontal direction, and each group of test cabinets is provided with 10 battery test compartments stacked in the vertical direction.

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