Semi-solid electrolyte metal pole piece

Abstract

The utility model relates to a semi-solid electrolyte metal pole piece, which comprises a metal pole piece layer, a metal pole piece layer and a metal pole piece layer, the protection layers are respectively arranged on the top surface and the bottom surface of the conductive part and cover the top surface and the bottom surface of the conductive part; and the semi-solid colloidal electrolyte layers are respectively arranged on the top surface and the bottom surface of the metal pole piece layer and cover the top surface and the bottom surface of the metal pole piece layer. The improved semi-solid electrolyte metal pole piece provided by the utility model is simple and reasonable in structure, the semi-solid electrolyte layers are attached to the two surfaces of the metal pole piece layer in an attaching manner, and the semi-solid electrolyte layers are prevented from being damaged, so that the defect of insufficient mechanical tension resistance is overcome, and the yield of the semi-solid electrolyte metal pole piece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-solid batteries, in particular to a semi-solid electrolyte metal pole piece. Background Art

[0002] Among metal electrodes, the lithium electrode is a good reactive substance. Since it is not easy to operate in a general environment, a flame retardant material needs to be provided on its surface for improvement, and the semi-solid colloidal electrolyte membrane is a good flame retardant material. However, due to the relatively thin thickness of the conventional semi-solid colloidal electrolyte membrane, the anti-mechanical tension is insufficient, resulting in difficulty in processing and forming the metal pole piece. Summary of the Utility Model

[0003] The utility model provides a semi-solid electrolyte metal pole piece, aiming to solve at least one of the technical problems existing in the prior art.

[0004] The technical solution of the utility model is a semi-solid electrolyte metal pole piece, including: a metal pole piece layer, with a conductive part provided at the edge of the metal pole piece layer; a protective layer, which is respectively provided on the top surface and the bottom surface of the conductive part and covers the top surface and the bottom surface of the conductive part; a semi-solid colloidal electrolyte layer, which is respectively provided on the top surface and the bottom surface of the metal pole piece layer and covers the top surface and the bottom surface of the metal pole piece layer.

[0005] Further, the protective layer includes any one or a combination of a peelable glue layer, a conductive glue layer, a barrier glue layer, and a hot melt glue layer.

[0006] Further, the metal pole piece layer includes a lithium metal sheet.

[0007] Further, the protective layer is formed by extending the edge of the semi-solid colloidal electrolyte layer.

[0008] Further, the area of the side of the semi-solid colloidal electrolyte layer close to the metal pole piece layer is larger than the area of the top surface or the bottom surface of the metal pole piece layer.

[0009] Further, an isolation layer is covered on the side of the semi-solid colloidal electrolyte layer away from the metal pole piece layer.

[0010] Further, the semi-solid colloidal electrolyte layer includes a semi-solid colloidal electrolyte membrane.

[0011] Further, the conductive part includes a conductive handle.

[0012] Further, the conductive handle is integrally formed with the metal pole piece layer.

[0013] Further, the length of the conductive handle is less than the length of the metal pole piece layer.

[0014] The beneficial effects of the utility model are as follows.

[0015] The present utility model proposes an improved semi-solid electrolyte metal electrode sheet, with a concise and reasonable structure. The semi-solid electrolyte layer is attached to both sides of the metal electrode sheet in a fitting manner, avoiding damage to the semi-solid electrolyte layer, thereby overcoming the drawback of insufficient mechanical tension resistance and improving the yield rate of the semi-solid electrolyte metal electrode sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall schematic diagram according to Embodiment 1 of the present utility model.

[0017] Figure 2 is the exploded schematic diagram according to Embodiment 1 of the present utility model.

[0018] Figure 3 is the overall schematic diagram according to Embodiment 2 of the present utility model.

[0019] Figure 4 is the exploded schematic diagram according to Embodiment 2 of the present utility model.

[0020] Figure 5 is the overall schematic diagram according to Embodiment 3 of the present utility model.

[0021] Figure 6 is the exploded schematic diagram according to Embodiment 3 of the present utility model.

[0022] In the above figures, 100 is the metal electrode sheet layer; 110 is the conductive part; 200 is the semi-solid colloidal electrolyte layer; 300 is the protective layer; 400 is the isolation layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the drawings, so as to fully understand the purpose, solution and effects of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0024] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to another feature, or indirectly fixed or connected to another feature. In addition, the descriptions such as up, down, left, right, top, bottom, etc. used in the present utility model are only relative to the mutual positional relationship of the various components of the present utility model in the drawings.

[0025] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this technology belongs. The terms used in the description of this specification are only for describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any combination of one or more of the related listed items.

[0026] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of this disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0027] Referring to Figures 1 to 6 , in some embodiments, according to the semi-solid electrolyte metal electrode sheet and preparation method of the present utility model, the semi-solid electrolyte metal electrode sheet therein includes: a metal electrode sheet layer 100, a conductive handle is provided at the edge of the metal electrode sheet layer 100, a conductive part 110 is integrally connected to the metal electrode sheet layer 100, and the conductive handle is a rectangular sheet structure; a protective layer 300, the protective layer 300 is respectively provided on the top surface and the bottom surface of the conductive handle and covers the top surface and the bottom surface of the conductive handle; a semi-solid colloidal electrolyte layer 200, the semi-solid colloidal electrolyte layer 200 is respectively provided on the top surface and the bottom surface of the metal electrode sheet layer 100 and covers the top surface and the bottom surface of the metal electrode sheet layer 100. Specifically, referring to Figure 1 and Figure 2 , in Embodiment 1 of the present utility model, the protective layer 300 includes any one or a combination of more of peelable glue, conductive glue, barrier glue, and hot melt glue to prevent the conductive handle from contacting air, and the edge of the protective layer 300 close to the semi-solid colloidal electrolyte layer 200 contacts the semi-solid colloidal electrolyte layer 200.

[0028] In the embodiments of the present utility model, the metal electrode sheet layer 100 is preferably a lithium metal sheet.

[0029] Referring to Figure 3 and Figure 4 , in Embodiment 2 of the present utility model, the protective layer 300 is formed by extending the edge of the semi-solid colloidal electrolyte layer 200, and the extended semi-solid colloidal electrolyte layer 200 covers the top surface and the bottom surface of the conductive handle.

[0030] In addition, the area of the side of the semi-solid colloidal electrolyte layer 200 close to the metal electrode sheet layer 100 is larger than the area of the top surface or the bottom surface of the metal electrode sheet layer 100 to prevent the edge of the metal electrode sheet layer 100 from being exposed, thereby improving the flame retardant performance.

[0031] Referring to Figure 5 and Figure 6, in Embodiment 3 of the present utility model, an isolation layer 400 is covered on the side of the semi-solid colloidal electrolyte layer 200 away from the metal electrode sheet layer 100. The isolation layer 400 can play a role in isolation and protection, avoiding the possibility of electric leakage caused by breakage during the processing and assembly process.

[0032] In an embodiment of the present utility model, the conductive part 110 includes a conductive handle, the conductive handle is integrally formed with the metal electrode sheet layer 100, and the length of the conductive handle is less than the length of the metal electrode sheet layer 100.

[0033] In an embodiment of the present utility model, the semi-solid colloidal electrolyte layer 200 includes a semi-solid colloidal electrolyte film.

[0034] It also includes a preparation method for preparing the semi-solid electrolyte metal electrode sheet of the embodiment of the present invention. The preparation method is as follows:

[0035] Step S1: Coating an electrolyte glue on a release film through a coating device, and forming the semi-solid colloidal electrolyte layer 200 after curing, aging and drying processes;

[0036] Step S2: Dehydrating the semi-solid colloidal electrolyte layer 200 after Step S1 through a water removal process to form a semi-solid colloidal electrolyte film;

[0037] Step S3: In an anhydrous and anaerobic environment, making both the top surface and the bottom surface of the metal strip foil be adhered and connected to the side of the semi-solid colloidal electrolyte film after Step S2 away from the release film to form a semi-solid colloidal electrolyte metal strip;

[0038] Step S4: Stamping the semi-solid electrolyte metal strip after Step S3 through a stamping device to form a semi-solid electrolyte metal electrode sheet;

[0039] Step S5: Removing the release film on the top surface and the bottom surface of the semi-solid electrolyte metal electrode sheet after Step S4.

[0040] Specifically, with the assistance of the release film, the semi-solid electrolyte layer is easy to form, and making the two sides of the metal electrode sheet layer 100 be adhered to the semi-solid electrolyte layer respectively in an anhydrous and anaerobic environment can avoid damage to the semi-solid electrolyte layer.

[0041] As mentioned above, it is only the preferred embodiment of the present utility model. The present utility model is not limited to the above-mentioned implementation manners. As long as it achieves the technical effects of the present utility model by the same means, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure should be included within the protection scope of the present disclosure. All should belong to the protection scope of the present utility model. Within the protection scope of the present utility model, its technical solutions and / or implementation manners can have various different modifications and changes.

Claims

1. Semi-solid electrolyte metal pole piece, characterized in that: include: A metal pole piece layer (100), wherein a conductive portion (110) is provided at an edge of the metal pole piece layer (100); A protective layer (300), the protective layer (300) being respectively arranged on the top surface and the bottom surface of the conductive part (110) and covering the top surface and the bottom surface of the conductive part (110); A semi-solid gel electrolyte layer (200), wherein the semi-solid gel electrolyte layer (200) is respectively arranged on the top surface and the bottom surface of the metal pole piece layer (100), and covers the top surface and the bottom surface of the metal pole piece layer (100).

2. The semi-solid electrolyte metal pole piece according to claim 1, characterized in that: The protective layer (300) comprises any one or more combinations of a peelable adhesive layer, a conductive adhesive layer, a barrier adhesive layer and a hot-melt adhesive layer.

3. The semi-solid electrolyte metal pole piece according to claim 1, characterized in that: The metal pole sheet layer (100) comprises a lithium metal sheet.

4. The semi-solid electrolyte metal pole piece according to claim 1, characterized in that: The protective layer (300) is formed by extending the edge of the semi-solid gel electrolyte layer (200).

5. The semi-solid electrolyte metal pole piece according to claim 4, characterized in that: The area of ​​the semi-solid gel electrolyte layer (200) on one side close to the metal pole piece layer (100) is larger than the area of ​​the top surface or the bottom surface of the metal pole piece layer (100).

6. The semi-solid electrolyte metal pole piece according to claim 1, characterized in that: A side of the semi-solid gel electrolyte layer (200) away from the metal pole piece layer (100) is covered with an isolation layer (400).

7. The semi-solid electrolyte metal pole piece according to claim 6, characterized in that: The semi-solid gel electrolyte layer (200) comprises a semi-solid gel electrolyte membrane.

8. The semi-solid electrolyte metal pole piece according to claim 1, characterized in that: The conductive part (110) comprises a conductive handle.

9. The semi-solid electrolyte metal pole piece according to claim 8, characterized in that: The conductive handle and the metal pole piece layer (100) are integrally formed.

10. The semi-solid electrolyte metal pole piece according to claim 8, characterized in that: The length of the conductive handle is smaller than the length of the metal pole piece layer (100).

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