An all-solid-state battery of a novel porous current collector

Abstract

The utility model provides a novel full solid battery of porous current collector, including positive pole, metal foam current collector, solid electrolyte layer, negative pole, stop piece, battery shell, pressing component and connecting column structure, the surface of metal foam current collector has the positive pole coated, solid electrolyte layer and negative pole are even pressure and are combined in the side of metal foam current collector, stop piece is pressed in the upside and downside of negative pole, the outside of positive pole, metal foam current collector, solid electrolyte layer, negative pole and stop piece are wrapped in battery shell, and pressing component even pressure and are combined in the both sides of battery shell, connecting column structure is fixed between pressing component. The utility model discloses the setting of connecting column structure, and the pressing component connection assembly of multiple, such present battery tight place fastener reinforcing function, avoid appearing the loosening of junction when easily leading to when collapsing, thereby appearing drop and the influence whole use.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, and in particular relates to a novel all-solid-state battery with a porous current collector. Background Technology

[0002] The all-solid-state battery with porous current collector is a new type of battery technology based on solid electrolyte. This battery mainly uses a three-dimensional porous current collector to replace the traditional metal foil current collector. By optimizing the ion transport path, increasing the electrode-electrolyte contact area, and mitigating volume expansion during charging and discharging, the battery can improve energy density, rate performance, and cycle life. However, the components at the clamping point are not tightly fixed, which can easily lead to loosening of the connection when the battery structure collapses, resulting in falling off and affecting the overall use. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a novel all-solid-state battery with a multi-hole current collector, which strengthens the fasteners at the battery clamping point, preventing the connection from loosening easily in the event of collapse, thus preventing it from falling off and affecting the overall use.

[0004] The technical solution is as follows: a novel all-solid-state battery with a porous current collector, comprising a positive electrode, a metal foam current collector, a solid electrolyte layer, a negative electrode, a stop member, a battery casing, pressing members, and a connecting column structure. The surface of the metal foam current collector is coated with the positive electrode; the solid electrolyte layer and the negative electrode are both pressed onto the sides of the metal foam current collector; the stop member is pressed onto the upper and lower sides of the negative electrode; the battery casing wraps around the positive electrode, the metal foam current collector, the solid electrolyte layer, the negative electrode, and the stop member, and the pressing members are all pressed onto the sides of the battery casing; the connecting column structure is fixed between the pressing members. The connecting column structure comprises a main column rod, both ends of which are threaded with threaded rods, and a hexagonal seat is integrally provided at the end of the threaded rod; a protective pad is sleeved on the outside of the threaded rod.

[0005] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0006] In this invention, the metal foam current collector optimizes the ion transport path, increases the electrode-electrolyte contact area, and alleviates volume expansion during charging and discharging, thereby improving the battery's energy density, rate performance, and cycle life.

[0007] In this invention, the main column, threaded rod, and hexagonal seat are designed to connect and assemble multiple pressing components. This reinforces the fasteners at the battery clamping point, preventing loosening of the connection in the event of collapse, which could lead to the battery falling off and affecting the overall use.

[0008] In this invention, the protective pad is provided to protect the installed hexagonal base. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the structure of the metal foam collector of this utility model.

[0011] Figure 3 This is a schematic diagram of the connecting column structure of this utility model.

[0012] In the picture:

[0013] 1. Positive electrode; 2. Metal foam current collector; 3. Solid electrolyte layer; 4. Negative electrode; 5. Stop; 6. Battery casing; 7. Pressing component; 8. Connecting column structure; 81. Main column rod; 82. Threaded rod; 83. Hexagonal seat; 84. Protective pad. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings:

[0015] Example:

[0016] As attached Figure 1 and attached Figure 2 As shown, a novel all-solid-state battery with a porous current collector includes a positive electrode 1, a metal foam current collector 2, a solid electrolyte layer 3, a negative electrode 4, a stop member 5, a battery casing 6, pressing members 7, and a connecting column structure 8. The surface of the metal foam current collector 2 is coated with the positive electrode 1; the solid electrolyte layer 3 and the negative electrode 4 are both pressed onto the sides of the metal foam current collector 2; the stop member 5 is pressed onto the upper and lower sides of the negative electrode 4; the battery casing 6 wraps around the positive electrode 1, the metal foam current collector 2, the solid electrolyte layer 3, the negative electrode 4, and the stop member 5, and the pressing members 7 are all pressed onto both sides of the battery casing 6; the connecting column structure 8 is fixed between the pressing members 7.

[0017] As attached Figure 3 As shown in the above embodiment, specifically, the connecting column structure 8 includes a main column rod 81, both ends of which are threadedly connected to threaded rods 82, and a hexagonal seat 83 is integrally provided at the end of the threaded rod 82; a protective pad 84 is sleeved on the outside of the threaded rod 82.

[0018] In the above embodiments, specifically, the metal foam collector 2 uses a foamed copper metal base or a foamed metal base, and is formed by pressing foamed metal sheets.

[0019] Specifically, in the above embodiments, the characteristics of traditional current collectors and porous current collectors differ as follows:

[0020]

[0021] In the above embodiments, specifically, a comparison of key performance indicators of all-solid-state batteries using porous current collector technology is provided:

[0022]

[0023] In the above embodiments, specifically, multiple main column rods 81 are provided and can be connected to the four corners of the pressing member 7.

[0024] In the above embodiments, specifically, the threaded rod 82 is inserted into the pressing member 7 and is movably connected to the main column rod 81.

[0025] In the above embodiments, specifically, the hexagonal seat 83 is connected to the threaded rod 82 and is in contact with the protective pad 84.

[0026] In the above embodiments, specifically, the protective pad 84 is a rubber pad and is tightly attached to the outer wall of the pressing member 7.

[0027] In the above embodiment, specifically, after the overall pressing and molding, the main column rod 81 is placed between the pressing components 7, and the threaded rod 82 is threaded through the pressing component 7 and connected to the main column rod 81. In this way, the pressing component 7 can be fixed with the protective pad 84. After fixing, the positive electrode 1 and negative electrode 4 line connection device can perform the work of storing and discharging electricity.

[0028] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution of this utility model, falls within the protection scope of this utility model.

Claims

1. A novel all-solid-state battery with a porous current collector, comprising a positive electrode (1), a metal foam current collector (2), a solid electrolyte layer (3), a negative electrode (4), a stop (5), a battery casing (6), a pressing member (7), and a connecting post structure (8), wherein the surface of the metal foam current collector (2) is coated with the positive electrode (1); the solid electrolyte layer (3) and the negative electrode (4) are both pressed onto the side of the metal foam current collector (2); the stop (5) is pressed onto the upper and lower sides of the negative electrode (4), characterized in that, The battery casing (6) is wrapped around the outside of the positive electrode (1), the metal foam current collector (2), the solid electrolyte layer (3), the negative electrode (4) and the stop (5), and the pressing members (7) are pressed on both sides of the battery casing (6); the connecting column structure (8) is fixed between the pressing members (7).

2. The all-solid-state battery with a novel porous current collector as described in claim 1, characterized in that, The connecting column structure (8) includes a main column (81), both ends of which are threaded with threaded rods (82), and a hexagonal seat (83) is integrally provided at the end of the threaded rod (82); a protective pad (84) is sleeved on the outside of the threaded rod (82).

3. The all-solid-state battery with a novel porous current collector as described in claim 1, characterized in that, The metal foam collector (2) is made of foamed copper metal base or foamed metal base and is formed by pressing foamed metal sheets.

4. The all-solid-state battery with a novel porous current collector as described in claim 2, characterized in that, Multiple main column rods (81) are provided and can be connected to the four corners of the pressing member (7).

5. The all-solid-state battery with a novel porous current collector as described in claim 2, characterized in that, The threaded rod (82) is inserted into the pressing member (7) and is movably connected to the main column rod (81).

6. The all-solid-state battery with a novel porous current collector as described in claim 2, characterized in that, The hexagonal seat (83) is connected to the threaded rod (82) and is positioned in contact with the protective pad (84).

7. The all-solid-state battery with a novel porous current collector as described in claim 2, characterized in that, The protective pad (84) is made of rubber and is attached to the outer wall of the pressing member (7).

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