Bionics quantum dot 3d structure of metal ion battery

Abstract

The utility model discloses a bionics quantum dot 3D structure of metal ion battery solves battery energy density and quick charge and discharge technical problem, including the positive plate and negative plate of battery are equipped with the tab and base body on, be equipped with a plurality of main chambers on the base body, the main chamber is the cylinder cavity structure, and one end is the opening, the other end is the seal, be equipped with a plurality of subchambers in the main chamber, the subchamber is divided into by the fin baffle of setting in the main chamber, the base body of positive plate and negative plate the inner chamber wall surface of main chamber and subchamber are combined positive and negative surface active material and constitute positive and negative, all main chamber and subchamber symmetrical two-dimensional topology arrangement constitutes 3D geometry, be set up on the base body main chamber and subchamber are single face or double -sided chamber structure, is based on the structure of bionics principle setting, main chamber and subchamber 3D structure body is micron or nanometer level quantum dot size.

Description

Technical Field

[0001] This utility model belongs to the field of metal-ion battery technology, specifically relating to a biomimetic quantum dot 3D structure for a metal-ion battery. Background Technology

[0002] Currently, metal-ion battery technology has entered a relatively mature stage of development, with significant improvements in battery materials, structure, processes, energy density, safety, and other aspects. The rapid development of pure electric vehicles, energy storage, and smartphones, in particular, has driven the rapid advancement of metal-ion battery technology. Against this backdrop, continuous optimization and iterative improvement of metal-ion battery technology are of positive significance for further developing and advancing battery technology.

[0003] However, from the current technological development path, the main direction of metal-ion battery technology development is to improve battery performance through improvements in battery material formulations. For example, the development of electrolyte materials has led to the evolution of ternary lithium-ion batteries from liquid electrolyte batteries to semi-solid electrolyte batteries to all-solid electrolyte batteries. However, no breakthrough progress has been made in the key performance aspects of metal-ion battery technology. Utility Model Content

[0004] The purpose of this invention is to provide a biomimetic quantum dot 3D structure for metal-ion batteries, solving the problems of battery energy density and fast charging / discharging technology; as a general technology, it is suitable for applications of stacked and wound liquid, semi-solid, and all-solid metal-ion batteries.

[0005] The bionic technical method of this utility model is: Based on the human vascular network structure model and the efficient blood circulation system, the human vascular network refers to a series of tubes and tissues through which blood flows. Except for the cornea, hair, nails, dentin, and epithelium, blood vessels are distributed throughout the body. The total length of human blood vessels is nearly 100,000 kilometers. If all of them were connected end to end, they could circle the earth 2.5 times.

[0006] Human blood vessels are classified into three types according to their function: arteries, veins, and capillaries. Arteries originate from the heart, branching continuously, gradually narrowing in diameter and thickening in wall, eventually dividing into numerous capillaries that distribute to all tissues and cells throughout the body. The capillaries then converge to form veins, which eventually return to the heart.

[0007] The vascular network is distributed throughout the entire body, delivering blood to all tissues and cells, efficiently providing nutrients to every tissue and cell in the body to maintain the activity of all tissues and cells. This is based on the support of the human vascular network.

[0008] In metal-ion batteries, the positive and negative electrode plates are important structural components that constitute the positive and negative electrodes. Their function is to act as current collectors, conduct electricity, and serve as carriers for the positive and negative electrode materials. They are generally made of metal plates with aluminum as the positive electrode and copper as the negative electrode. This invention uses the positive and negative electrode plates in the battery as carriers for constructing a biomimetic quantum dot 3D structure model.

[0009] This invention is based on the biomimetic principle of the human blood circulation system. The battery pack has a positive terminal connection line, which is a section of battery interface line extending outward after all the positive electrode tabs in the battery pack are gathered, equivalent to the aorta; the positive electrode tabs on the positive electrode are equivalent to the secondary aorta; the positive electrode substrate is equivalent to the branch arteries; the main chamber structure partition on the positive electrode substrate is equivalent to the micro-arteries; and the sub-chamber structure fin partition within the main chamber structure is equivalent to the arterial capillaries.

[0010] The battery pack has a negative terminal connection line, which is a section of battery interface line extending outward after all the negative electrode tabs in the battery pack converge, equivalent to a main vein; the negative electrode tabs on the negative electrode are equivalent to secondary main veins; the negative electrode substrate is equivalent to branch veins; the main chamber structure partition on the negative electrode substrate is equivalent to microvein; and the sub-chamber structure fin partition within the main chamber structure is equivalent to venous capillaries.

[0011] The aforementioned metal-ion battery structure, which includes a large number of quantum dot-sized chamber topology 3D structures for positive and negative electrodes, is called a quantum dot topology 3D structure circuit network structure model system.

[0012] The bionic implementation process of this utility model is as follows: If we consider vascular tissue as electrical circuits, vascular networks as electrical networks, blood pressure as voltage, and blood as electric current, then blood flows throughout the body's blood vessels driven by blood pressure, while electric current flows throughout the entire circuit driven by voltage.

[0013] The human vascular system begins at the heart, flows through the aorta into the various branches of the arteries throughout the body, then branches into the capillaries of the arteries; from there, it converges at the capillaries of the veins, flows into the various branches of the veins, and finally returns to the heart through the main vein, thus completing the blood circulation.

[0014] The biomimetic cycle of charging and discharging in a metal-ion battery system: During charging, starting from the battery pack interface, external current is shunted through the positive electrode tabs and enters the positive electrode substrates inside the battery. The positive electrode material undergoes an electrochemical reaction under the influence of the current in the positive electrode substrate. At this time, metal ions are released from the metal compounds in the positive electrode material, releasing electrons. These metal ions migrate and embed into the lattice gaps of the negative electrode material through the electrolyte, placing the negative electrode in a metal-ion-rich state. Electrons reach the negative electrode through the external circuit, and are simultaneously absorbed. During discharge, the circuit is connected, and an electrochemical reaction occurs in the negative electrode material. Metal ions in the lattice gaps of the negative electrode material are released and electrons are released. The metal ions migrate through the electrolyte to the positive electrode material and combine with the positive electrode material that has lost metal ions to regenerate metal compounds. Electrons reach the positive electrode through the external circuit and are simultaneously received.

[0015] To achieve the aforementioned biomimetic objectives, the technical solution adopted by this utility model is as follows: A biomimetic quantum dot 3D structure for a metal-ion battery is provided, comprising a positive electrode and a negative electrode. The positive and negative electrode sheets are provided with tabs and a substrate. The substrate has multiple main chambers. Each main chamber contains multiple sub-chambers. Each main chamber is configured as a cylindrical cavity structure enclosed by cylindrical partitions, with one end open and the other end sealed. Each sub-chamber is separated by finned partitions disposed within the main chambers. The substrate of the positive and negative electrode sheets, the top surfaces of the cylindrical partitions of all the main chambers on the substrate, the inner walls of the cylindrical partitions, and the bottom surfaces of the main chambers, along with the top surfaces of the finned partitions of all the sub-chambers, the inner walls of the finned partitions, and the bottom surfaces of the sub-chambers, are respectively bonded with positive and negative surface-active materials to form the positive and negative electrodes.

[0016] In some embodiments, the cylindrical cavity structure of the main chamber includes prisms with different numbers of sides, or other shapes of columns, or a composite configuration of columns of different shapes arranged together; all the main chambers are arranged symmetrically in a two-dimensional topological arrangement on the substrate to form a 3D geometric structure.

[0017] In some embodiments, the sub-chambers are formed by finned partitions arranged in a certain geometric method and shape within the cavity of the main chamber, and the finned partitions divide the cavity of the main chamber into multiple chamber structures with smaller geometric dimensions; the multiple sub-chambers are arranged symmetrically in a two-dimensional topological arrangement within the main chamber to form a 3D geometric structure.

[0018] In some embodiments, the substrate having the main chamber and the sub-chamber includes a single-sided chamber structure or a double-sided chamber structure; the single-sided chamber structure refers to a 3D geometric structure on one side of the substrate in which the main chamber and the sub-chamber form a symmetrical two-dimensional topological arrangement, while the other side is a sealing plane; the double-sided chamber structure refers to a 3D geometric structure on both sides of the substrate in which the main chamber and the sub-chamber form a symmetrical two-dimensional topological arrangement, with the dividing plane of the double-sided chamber structure located in the middle of the substrate plane, so that the main chamber and the sub-chamber structure on both sides of the substrate are not interconnected.

[0019] In some embodiments, all the main chambers on the single-sided or double-sided chamber structure of the substrate are arranged in a symmetrical two-dimensional geometric topology, and adjacent main chambers are connected by cylindrical partitions of the main chambers; all the sub-chambers in the main chambers are arranged in a symmetrical two-dimensional geometric topology, and adjacent sub-chambers are connected by finned partitions of the sub-chambers.

[0020] In some embodiments, the thickness of the finned partition of the sub-chamber is less than the thickness of the cylindrical partition of the main chamber, so that the substrate as a whole can withstand good pressure resistance, providing a mechanical support framework for the positive and negative electrode surface active materials attached to the substrate of the positive and negative electrode sheets, strengthening the overall physical strength of the battery and the bonding force between the substrate material and the surface active material, and making it less likely to cause the internal structure to collapse.

[0021] A method for constructing a biomimetic quantum dot 3D structure for a metal-ion battery is also provided, comprising the following steps: S1, based on the principle of bionics and the human blood vessel structure model and efficient blood circulation system, constructs a 3D topological circuit network model system with quantum dot size on the positive and negative electrode plates of metal ion batteries, so that the current can efficiently and widely reach the contact surface of the micron or nano-sized molecular cluster particles quantum dot in the surface active material on the positive and negative electrode plates. S2, according to the topological circuit network structure model system of quantum dot 3D structure, the main chamber and the sub-chamber 3D structure disposed on the substrate of the positive electrode and the negative electrode are of micron or nanometer scale quantum dot size; S3, based on a 3D geometric model of all the main chambers and all the sub-chambers on the substrates of the positive and negative electrodes being micron or nanometer-sized quantum dot structures, a 3D chamber configuration of quantum dot size is established on the substrates of the positive and negative electrodes between the bonding interface with the positive and negative electrode surface-active materials. This configuration includes multiple main chamber 3D structures and numerous sub-chamber 3D structures. For the positive and negative electrode substrates, the main chamber 3D structures and the sub-chamber 3D structures serve as electrode containers for the molecular cluster quantum dot structures of the positive and negative electrode surface-active materials, providing a basis for the positive electrode surface-active material... The molecular clusters of quantum dots in the positive and negative electrode surface active materials provide physical structural support and form the power supply electrode of the quantum dot circuit network structure model system. For the positive and negative electrode surface active materials, micron or nano-sized molecular cluster quantum dot structures with the shape of the sub-chambers are constructed on the bonding interface between the positive and negative electrode substrates and the positive and negative electrode surface active materials. This 3D structure of the main chamber and the sub-chambers creates a technical framework for the huge quantum dot surface area effect condition on the bonding interface between the electrodes on the positive and negative electrode substrates and the positive and negative electrode surface active materials.

[0022] S4. Based on the quantum dot surface area effect technology architecture, the quantum dot surface area effect enables the positive and negative electrode surface active materials to exhibit new physical properties, improving the effective utilization rate of the positive and negative electrode surface active materials, increasing the effective space for electrochemical reaction activity, the effective space for lattice void activity in the negative electrode surface active material, and the effective storage space for metal ions. Under the condition of constant battery volume, the 3D structure model of the main chamber and the sub-chamber on the substrate of the positive and negative electrode sheets is significantly improved compared with the traditional 2D plane of the substrate of the positive and negative electrode sheets. The structural model demonstrates that the surface area effect of quantum dots enables efficient and widespread current delivery to the contact surfaces of micron- or nano-sized molecular clusters of quantum dots in the positive electrode surface active material. This activates a greater number of active material molecules on the surface of the micron- or nano-sized molecular clusters of quantum dots in the positive electrode surface active material to participate in electrochemical reactions. The micron- or nano-sized molecular clusters of quantum dots in the positive electrode surface active material release a greater total amount of free metal ions and electrons, while the micron- or nano-sized molecular clusters of quantum dots in the negative electrode surface active material can also provide a greater total amount of free metal ions to store lattice gaps, thereby improving the unit energy density of the battery.

[0023] On the other hand, under this quantum dot surface area effect, the active material molecules on the surface of the micron or nano-sized molecular clusters in the positive electrode surface active material participate in the electrochemical reaction more extensively, releasing more free metal ions and electrons per unit time. This quantum dot surface area effect fast charging technology architecture makes the charging speed much faster, and similarly, the discharging speed can also be greatly accelerated.

[0024] In some embodiments, step S2 further includes: the main chamber (4) and the sub-chamber (6) constructed on the substrate (2) of the positive and negative electrode sheets of the single-sided chamber structure are single-sided 3D geometric structures with a quantum dot size of micrometer or nanometer; the main chamber and the sub-chamber constructed on the substrate of the positive and negative electrode sheets of the double-sided chamber structure are double-sided 3D geometric structures with a quantum dot size of micrometer or nanometer.

[0025] In some embodiments, step S2 further includes fabricating quantum dot cavity 3D geometric structures of the main chamber and the sub-chamber on the positive electrode and negative electrode substrates using laser lithography or imprinting processes; the cylindrical partitions of all the main chambers, the inner bottom surface of the main chambers, and the finned partitions of all the sub-chambers, the inner bottom surface of the sub-chambers are integrally formed in one piece on the substrate and are made of the same material as the substrate.

[0026] In some embodiments, step S3 further includes using vacuum deposition technology to deposit the positive electrode surface active material and the negative electrode surface active material onto the substrate of the positive electrode sheet and the negative electrode sheet, respectively, to form a full-coverage thin film layer on the surface of the top surface of the cylindrical partition of all the main chambers, the inner wall surface of the cylindrical partition, the inner bottom surface of the main chamber, and the top surface of the finned partition of all the sub-chambers, the inner wall surface of the finned partition, and the inner bottom surface of the sub-chamber.

[0027] After adopting the above technical solution, the beneficial effects of this utility model are as follows: Based on the human vascular network structure model and the biomimetic principle of efficient blood circulation, a 3D quantum dot structure model was established inside the positive and negative electrodes of a metal-ion battery. By setting numerous main chambers and sub-chambers on the substrate, the internal storage space of the substrate was expanded. Interconnected cylindrical and finned separators were used to construct a novel circuit network on the substrate. These numerous main and sub-chamber structures serve as electrode containers for the quantum dot structures of the positive and negative electrode materials, providing physical structural support for their quantum dot structures. At the contact interfaces between the positive and negative electrode substrates and the positive and negative electrode materials, respectively, micron- or nano-scale quantum dot structures with sub-chamber shapes were constructed, simultaneously creating a contact interface... The large quantum dot surface area effect enables the cathode and anode materials to exhibit new physical properties, significantly improving their utilization efficiency and electrochemical reactivity and effective space. Under the condition of constant battery volume, the main chamber and sub-chamber structure models of this novel metal-ion battery, compared to the traditional 2D planar structure model, allow the quantum dot surface area effect to efficiently and widely deliver current to the micron or nanometer-sized quantum dot clusters in the cathode material. This activates a greater number of surface molecules on the quantum dot clusters in the cathode material to participate in the electrochemical reaction, releasing a larger amount of free metal ions and electrons. Similarly, the micron or nanometer-sized quantum dot clusters in the anode material provide more free metal ions to store in the lattice spaces, thus significantly improving the battery's energy density and performance.

[0028] On the other hand, under this quantum dot surface area effect, the material molecules on the surface of the micron or nano-sized molecular clusters of quantum dots in the cathode material participate in electrochemical reactions more extensively, releasing more free metal ions and electrons per unit time. This quantum dot surface area effect can also significantly accelerate the charging speed. Similarly, the discharging speed can also be significantly accelerated. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1This is a schematic diagram of the electrode structure of the metal-ion battery in Example 1; Figure 2 This is a schematic diagram of the double-sided positive electrode sheet in Example 1; Figure 3 This is a schematic diagram of the double-sided negative electrode sheet in Example 1; Figure 4 This is a schematic diagram of the main chamber structure of a regular hexagonal prism with symmetrical two-dimensional geometric topological arrangement on the positive electrode sheet of the double-sided structure in Embodiment 1; Figure 5 This is a schematic diagram of the main chamber structure of a regular hexagonal prism with symmetrical two-dimensional geometric topological arrangement on the negative electrode sheet of the double-sided structure in Embodiment 1; Figure 6 This is a schematic diagram of the main chamber structure of a regular square prism with a symmetrical two-dimensional geometric topological arrangement of the double-sided positive electrode sheet in Embodiment 1; Figure 7 This is a schematic diagram of the main chamber structure of a regular square prism with symmetrical two-dimensional geometric topological arrangement on the negative electrode sheet of the double-sided structure in Embodiment 1; Figure 8 This is a schematic diagram of the main chamber structure of a regular triangular prism with symmetrical two-dimensional geometric topological arrangement on the positive electrode sheet of the double-sided structure in Embodiment 1; Figure 9 This is a schematic diagram of the main chamber structure of a symmetrical two-dimensional geometric topological arrangement of a regular triangular prism on the negative electrode sheet with a double-sided structure in Embodiment 1; Figure 10 This is a schematic diagram of the main chamber structure with a composite shape of a regular pentagonal prism and a square prism on the positive electrode substrate in Example 1; Figure 11 This is a schematic diagram of the main chamber structure with a composite shape of a regular pentagonal prism and a square prism on the negative electrode substrate in Example 1; Figure 12 This is a schematic diagram of the hexagonal prism main chamber structure on the positive and negative electrode substrates in Example 1; Figure 13 This is a schematic diagram of the first seed chamber structure within the hexagonal prism main chamber on the positive and negative electrode substrates in Example 1; Figure 14 This is a schematic diagram of the second seed chamber structure within the regular hexagonal prism main chamber on the positive and negative electrode substrates in Embodiment 1; Figure 15 This is a schematic diagram of the third seed chamber structure within the hexagonal prism main chamber on the positive and negative electrode substrates in Example 1; Figure 16 This is a schematic diagram of the fourth seed chamber structure within the hexagonal prism main chamber on the positive and negative electrode substrates in Example 1; Figure 17 This is a schematic diagram of the fifth seed chamber structure within the hexagonal prism main chamber on the positive and negative electrode substrates in Example 1; Figure 18 This is a schematic diagram of the sixth seed chamber structure within the hexagonal prism main chamber on the positive and negative electrode substrates in Example 1; Figure 19 This is a schematic diagram of the seventh seed chamber structure within the hexagonal prism main chamber on the positive and negative electrode substrates in Example 1. Figure 20 This is a schematic diagram of the eighth seed chamber structure within the hexagonal prism main chamber on the positive and negative electrode substrates in Example 1. Figure 21 This is a schematic diagram of the structure of the bottom surface, inner wall, and top surface of the cylindrical partition plate of the main cavity chamber on the positive and negative electrode substrates in Example 1. Figure 22 This is a schematic diagram of the bottom surface, inner wall, and top surface of the finned partition plate of the chambers in the main chamber and sub-chamber of the positive and negative electrode substrates in Example 1. Figure 23 This is the third schematic diagram of the main chamber structure of the positive electrode in Embodiment 1; Figure 24 This is the third schematic diagram of the positive electrode plate chamber structure in Embodiment 1; Figure 25 This is the third schematic diagram of the main chamber structure of the negative electrode in Embodiment 1; Figure 26 This is the third schematic diagram of the negative electrode plate chamber structure in Example 1.

[0031] Explanation of reference numerals in the attached figures: 1. Electrode tab; 2. Substrate; 3. Plane dividing the double-sided chamber structure; 4. Main chamber; 5. Cylindrical partition; 6. Sub-chamber; 7. Fin partition; 8. Top surface of cylindrical partition; 9. Inner wall surface of cylindrical partition; 10. Inner bottom surface of the main chamber; 11. Top surface of fin partition; 12. Inner wall surface of fin partition; 13. Inner bottom surface of the sub-chamber; 20. Positive electrode tab; 21. Positive electrode substrate; 22. Plane dividing the double-sided chamber structure of the positive electrode; 23. Main chamber of the positive electrode; 24. Cylindrical partition of the main chamber of the positive electrode; 25. Sub-chamber of the positive electrode; 30. Negative electrode tab; 31. Negative electrode substrate; 32. Plane dividing the double-sided chamber structure of the negative electrode; 33. Main chamber of the negative electrode; 34. Cylindrical partition of the main chamber of the negative electrode; 35. Sub-chamber of the negative electrode. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0034] Example 1: This embodiment provides a biomimetic quantum dot 3D structure for a metal-ion battery, specifically as follows: Figure 1 As shown, the battery includes a positive electrode and a negative electrode; the positive electrode and the negative electrode are provided with tabs 1 and a substrate 2, and the substrate 2 is provided with multiple main chambers 4; the main chamber 4 is provided with multiple sub-chambers 6; the main chamber 4 is configured as a cylindrical cavity structure surrounded by cylindrical partitions 5, with one end open and the other end sealed; the sub-chambers 6 are separated by finned partitions 7 disposed in the main chambers 4; the substrate 2 of the positive electrode and the negative electrode, the top surface 8 of the cylindrical partitions of all the main chambers 4 on the substrate 2, the inner wall surface 9 of the cylindrical partitions, the inner bottom surface 10 of the main chambers, and the entire surfaces of the top surface 11 of the finned partitions, the inner wall surface 12 of the finned partitions, and the inner bottom surface 13 of the sub-chambers 6 are respectively bonded with positive electrode surface active materials and negative electrode surface active materials to form positive electrode and negative electrode.

[0035] Furthermore, the positive and negative electrode plates of the battery have the same structure, specifically as follows: Figures 2-5 As shown, the positive electrode sheet of the battery is provided with a positive electrode tab 20 and a positive electrode substrate 21. The positive electrode substrate 21 is provided with a positive electrode main chamber 23 and a positive electrode sub-chamber 25. The positive electrode main chamber 23 is composed of a positive electrode main chamber cylindrical partition 24, and the negative electrode main chamber 33 is composed of a negative electrode main chamber cylindrical partition 34. The top surface 8, inner wall surface 9, and inner bottom surface 10 of the cylindrical partitions of all the positive electrode main chambers 23 on the positive electrode substrate 21 are completely aligned with the top surface 11, inner wall surface 12, and inner bottom surface 13 of the finned partitions of all the positive electrode sub-chambers 25. The substrate 21 of the positive electrode is bonded to a surface-active material to form a positive electrode with a 3D structure of a main chamber and sub-chambers. In some embodiments, the middle position of the positive electrode substrate 21 with the double-chamber structure is the dividing plane 22 of the double-chamber structure of the positive electrode, so that the positive electrode main chamber 23 and the positive electrode sub-chamber 25 on both sides of the positive electrode substrate 21 are not connected to each other. Similarly, the middle position of the negative electrode substrate 31 with the double-chamber structure is the dividing plane 32 of the double-chamber structure of the negative electrode, so that the negative electrode main chamber 33 and the negative electrode sub-chamber 35 on both sides of the negative electrode substrate 31 are not connected to each other.

[0036] In some embodiments, specifically as follows Figures 6-11As shown, the cylindrical cavity structure of the main chamber 4 includes prisms with different numbers of sides, or other shapes of columnar bodies, or a composite configuration of columnar bodies of different shapes arranged together; all the main chambers 4 are arranged symmetrically in two-dimensional topology on the substrate 2 to form a 3D geometric structure.

[0037] In some embodiments, specifically as follows Figure 12-20 As shown, the sub-chamber 6 is formed by finned partitions 7 arranged in a certain geometric method and shape within the cavity of the main chamber 4. The finned partitions 7 divide the cavity of the main chamber 4 into multiple chamber structures with smaller geometric dimensions. The multiple sub-chambers 6 are arranged symmetrically in a two-dimensional topology within the main chamber 4 to form a 3D geometric structure.

[0038] In some embodiments, the base 2, which includes the main chamber 4 and the sub-chamber 6, comprises a single-sided chamber structure or a double-sided chamber structure. The single-sided chamber structure refers to a 3D geometric structure on one side of the base 2 in which the main chamber 4 and the sub-chamber 6 form a symmetrical two-dimensional topological arrangement, while the other side is a sealing plane. The double-sided chamber structure refers to a 3D geometric structure on both sides of the base 2 in which the main chamber 4 and the sub-chamber 6 form a symmetrical two-dimensional topological arrangement, with the double-sided chamber structure dividing plane 3 located in the middle of the plane of the base 2, so that the main chamber 4 and the sub-chamber 6 on both sides of the base 2 are not interconnected.

[0039] In some embodiments, all the main chambers 4 on the single-sided or double-sided chamber structure of the substrate 2 are arranged in a symmetrical two-dimensional geometric topology, and adjacent main chambers 4 are connected by cylindrical partitions 5 of the main chambers 4; all the sub-chambers 6 in the main chambers 4 are arranged in a symmetrical two-dimensional geometric topology, and adjacent sub-chambers 6 are connected by finned partitions 7 of the sub-chambers 6.

[0040] In some embodiments, the thickness of the finned partition 7 of the sub-chamber 6 is less than the thickness of the cylindrical partition 5 of the main chamber 4, so that the substrate 2 as a whole can withstand good pressure resistance, providing a mechanical support framework for the positive electrode surface active materials and negative electrode surface active materials attached to the substrate 2 of the positive electrode and negative electrode, strengthening the overall physical strength of the battery and the bonding force between the substrate material and the surface active material, and making it less likely to cause the internal structure to collapse.

[0041] Furthermore, the cylindrical partitions 5 of all the main chambers 4, the inner bottom surface 10 of the main chambers, and the finned partitions 7 of all the sub-chambers 6, and the inner bottom surface 13 of the sub-chambers are integrally formed in one piece and are made of the same material as the base 2.

[0042] Furthermore, the positive electrode sub-chamber 25 is used to bond the positive electrode surface energy active material; the negative electrode sheet is provided with a negative electrode tab 30 and a negative electrode substrate 31. The negative electrode substrate 31 is provided with a negative electrode main chamber 33 and a negative electrode sub-chamber 35. The top surface 8 of the cylindrical partition, the inner wall surface 9 of the cylindrical partition, and the bottom surface 10 of the main chamber of the negative electrode on the negative electrode substrate 31 are bonded with the negative electrode surface active material, and the entire surface of the top surface 11 of the finned partition, the inner wall surface 12 of the finned partition, and the bottom surface 13 of the sub-chamber of the negative electrode 35 are bonded with the negative electrode surface active material, thus forming a negative electrode with a 3D structure of main chamber and sub-chamber.

[0043] Furthermore, the surface area effect of quantum dots enables positive and negative electrode surface active materials to exhibit new physical properties, greatly improving the effective utilization rate of positive and negative electrode surface active materials and significantly increasing their electrochemical reaction activity and effective space.

[0044] Example 2 This embodiment provides a method for constructing a biomimetic quantum dot 3D structure for a metal-ion battery, including the following steps: S1, based on the principles of bionics and the human blood vessel structure model and efficient blood circulation system, constructs a 3D topological circuit network model system with quantum dot size on the positive and negative electrodes of a metal-ion battery. This allows the current to efficiently and widely reach the contact surface of the micron or nano-sized molecular cluster particles quantum dots in the surface active materials on the positive and negative electrodes.

[0045] S2, according to the topological circuit network structure model system of quantum dot 3D structure, the main chamber 4 and the sub-chamber 6 structure disposed on the substrate 2 of the positive electrode and the negative electrode are of micron or nanometer scale quantum dot size.

[0046] S3, based on the 3D geometric model of all the main chambers 4 and all the sub-chambers 6 on the substrate 2 of the positive and negative electrodes being micron or nanometer-sized quantum dots, a complex 3D configuration of the chambers at the quantum dot size is established on the substrate 2 of the positive and negative electrodes between the bonding interface with the positive and negative electrode surface active materials. This configuration contains a large number of 3D structures of the main chambers 4 and numerous 3D structures of the sub-chambers 6. For the positive and negative electrode substrates, these numerous 3D structures of the main chambers 4 and numerous 3D structures of the sub-chambers 6 serve as the molecular cluster quantum dot structure of the positive and negative electrode surface active materials. The electrode container provides physical structural support for the construction of quantum dot molecular clusters of positive and negative electrode surface active materials, and forms the power supply electrode of the quantum dot circuit network structure model system. For the positive and negative electrode surface active materials, at the bonding interface between the positive and negative electrode substrates and the positive and negative electrode surface active materials, micron or nano-scale molecular cluster quantum dot structures with the shape of the sub-chamber 6 are constructed. This 3D structure of the main chamber 4 and the sub-chamber 6 creates a technical framework for the huge quantum dot surface area effect at the bonding interface between the electrodes on the positive and negative electrode substrates and the positive and negative electrode surface active materials.

[0047] S4. Based on the quantum dot surface area effect technology architecture, the quantum dot surface area effect enables the positive and negative electrode surface active materials to exhibit new physical properties, greatly improving the effective utilization rate of the positive and negative electrode surface active materials, and significantly increasing the effective space for electrochemical reaction activity of the positive and negative electrode surface active materials, the effective space for lattice void activity of the negative electrode surface active material, and the effective storage space for metal ions. Under the condition of constant battery volume, compared with the traditional 2D planar structure model of the substrate of the positive and negative electrode sheets, the 3D structural model of the main chamber 4 and the sub-chamber 6 on the substrate of the positive and negative electrode sheets has the quantum dot surface area effect, which enables the current to reach the contact surface of the micron or nano-sized molecular cluster particles quantum dots in the positive electrode surface active material efficiently and widely. This activates a greater number of active material molecules on the surface of the micron or nano-sized molecular cluster particles quantum dots in the positive electrode surface active material to participate in the electrochemical reaction. The micron or nano-sized molecular cluster particles quantum dots in the positive electrode surface active material release a greater total amount of free metal ions and electrons, while the micron or nano-sized molecular cluster particles quantum dots in the negative electrode surface active material can also provide a greater total amount of free metal ions to store lattice gaps, thereby significantly improving the unit energy density of the battery.

[0048] On the other hand, under this quantum dot surface area effect, the active material molecules on the surface of the micron or nano-sized molecular clusters in the positive electrode active material participate in electrochemical reactions more extensively, releasing more free metal ions and electrons per unit time. This quantum dot surface area effect fast charging technology architecture significantly accelerates the charging speed. Similarly, the discharging speed can also be significantly accelerated.

[0049] In some embodiments, step S2 further includes: the main chamber 4 and the sub-chamber 6, which are symmetrically arranged in two-dimensional geometric topology and respectively constructed on the substrate 2 of the positive and negative electrode sheets with single-sided chamber structure, are single-sided 3D geometric structures with micron or nanometer-sized quantum dots; the main chamber 4 and the sub-chamber 6, which are symmetrically arranged in two-dimensional geometric topology and respectively constructed on the substrate of the positive and negative electrode sheets with double-sided chamber structure, are double-sided 3D geometric structures with micron or nanometer-sized quantum dots.

[0050] In some embodiments, step S2 includes fabricating quantum dot cavity 3D geometric structures of the main chamber 4 and the sub-chamber 6 on the positive and negative electrode substrates using laser lithography or imprinting processes; the cylindrical partitions 5 of all the main chambers, the inner bottom surface 10 of the main chambers, and the finned partitions 7 of all the sub-chambers, and the inner bottom surface 13 of the sub-chambers on the substrate 2 are integrally formed in one piece and are made of the same material as the substrate.

[0051] In some embodiments, step S3 further includes using vacuum deposition technology to deposit the positive electrode surface active material and the negative electrode surface active material onto the substrate 2 of the positive electrode sheet and the negative electrode sheet, respectively, to form a full-coverage thin film layer on the surface of the top surface 8 of the cylindrical partition plate of all the main chambers 4, the inner wall surface 9 of the cylindrical partition plate, the inner bottom surface 10 of the main chamber, and the top surface 11 of the finned partition plate, the inner wall surface 12 of the finned partition plate, and the inner bottom surface 13 of the sub-chambers 6.

[0052] Furthermore, the top surface 8 of the cylindrical partition plate of all the main chambers 23 of the positive electrode plate, the inner wall surface 9 of the cylindrical partition plate of the main chamber, and the inner bottom surface 10 of the main chamber, and the entire surface of the top surface 11 of the finned partition plate of all the sub-chambers 6, the inner wall surface 12 of the finned partition plate of the sub-chamber, and the inner bottom surface 13 of the sub-chamber, are respectively bonded with positive electrode surface active material to form a positive electrode with a 3D structure of main chamber and sub-chamber.

[0053] Furthermore, the top surface 8 of the cylindrical partition plate of all the main chambers 23 of the negative electrode sheet, the inner wall surface 9 of the cylindrical partition plate of the main chamber, and the inner bottom surface 10 of the main chamber, and the entire surface of the top surface 11 of the fin partition plate of all the sub-chambers 6, the inner wall surface 12 of the fin partition plate of the sub-chamber, and the inner bottom surface 13 of the sub-chamber, are respectively bonded with negative electrode surface active material to form a negative electrode with a 3D structure of main chamber and sub-chamber.

[0054] Furthermore, the positive electrode surface active material includes ternary lithium, lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide, etc.

[0055] Furthermore, the negative electrode surface active material includes graphite or mesophase carbon microspheres, etc.

[0056] Furthermore, a metal-ion battery pack is composed of multiple individual cells repeatedly bonded and stacked in parallel; an individual cell is composed of "positive electrode + electrolyte + negative electrode" bonded and stacked on one side or "positive electrode + electrolyte + negative electrode + electrolyte" on both sides; the positive electrode is composed of "positive electrode substrate + positive electrode material"; the negative electrode is composed of "negative electrode substrate + negative electrode material"; the electrolyte of a solid-state battery is a solid electrolyte; the electrolyte of a liquid battery is composed of "liquid electrolyte + separator + liquid electrolyte".

[0057] Furthermore, the vacuum coating technology includes chemical vapor deposition (CVD), physical vapor deposition (PVD), electron beam physical vapor deposition (EPVD), etc.

[0058] The present invention has been described in detail above through specific embodiments. These detailed descriptions are only intended to help those skilled in the art understand the content of the present invention and should not be construed as limiting the scope of protection of the present invention. Various modifications and equivalent transformations made by those skilled in the art to the above solutions under the concept of the present invention should be included within the scope of protection of the present invention.

Claims

1. A biomimetic quantum dot 3D structure for a metal-ion battery, characterized in that: Including the positive and negative electrode plates of the battery, The positive and negative electrode plates of the battery are provided with tabs (1) and a substrate (2), and the substrate (2) is provided with multiple main chambers (4); the main chambers (4) are provided with multiple sub-chambers (6). The main chamber (4) is configured as a cylindrical cavity structure surrounded by cylindrical partitions (5), with one end open and the other end sealed. The sub-chamber (6) is divided by finned partitions (7) disposed in the main chamber (4); The positive electrode and the negative electrode are respectively bonded with positive electrode surface active material and negative electrode surface active material to form positive electrode and negative electrode. The positive electrode and the negative electrode are respectively bonded with positive electrode surface active material and negative electrode surface active material to form positive electrode and negative electrode.

2. The biomimetic quantum dot 3D structure of the metal-ion battery according to claim 1, characterized in that: The cylindrical cavity structure of the main chamber (4) includes a composite configuration of columns with different numbers of sides or columns of different shapes; all the main chambers (4) are arranged on the substrate (2) to form a 3D geometric structure.

3. The biomimetic quantum dot 3D structure of the metal-ion battery according to claim 2, characterized in that: The sub-chamber (6) is formed by finned partitions (7) arranged in geometric methods and shapes within the cavity of the main chamber (4). The finned partitions (7) divide the cavity of the main chamber (4) into multiple chamber structures with smaller geometric dimensions. The multiple sub-chambers (6) form a 3D geometric structure within the main chamber (4).

4. The biomimetic quantum dot 3D structure of the metal-ion battery according to claim 2 or 3, characterized in that: The substrate (2) having the main chamber (4) and the sub-chamber (6) includes a single-sided chamber structure or a double-sided chamber structure; the single-sided chamber structure refers to the main chamber (4) and the sub-chamber (6) forming a 3D geometric structure on one side of the substrate (2), while the other side is a sealing plane; the double-sided chamber structure refers to the main chamber (4) and the sub-chamber (6) forming a 3D geometric structure on both sides of the substrate (2), with the double-sided chamber structure dividing plane (3) at the middle position of the plane of the substrate (2), so that the main chamber (4) and the sub-chamber (6) on both sides of the substrate (2) are not connected to each other.

5. The biomimetic quantum dot 3D structure of the metal-ion battery according to claim 4, characterized in that: All the main chambers (4) on the single-sided or double-sided chamber structure of the substrate (2) are arranged symmetrically, and adjacent main chambers (4) are connected by cylindrical partitions (5) of the main chambers (4); all the sub-chambers (6) in the main chambers (4) are arranged symmetrically, and adjacent sub-chambers (6) are connected by fin partitions (7) of the sub-chambers (6).

6. The biomimetic quantum dot 3D structure of the metal-ion battery according to claim 5, characterized in that: The thickness of the finned partition (7) of the sub-chamber (6) is less than the thickness of the cylindrical partition (5) of the main chamber (4), so that the substrate (2) as a whole can bear good pressure resistance, providing a mechanical support skeleton for the positive electrode surface active material and the negative electrode surface active material attached to the substrate (2) of the positive electrode and the negative electrode, strengthening the overall physical strength of the battery and the bonding force between the substrate material and the surface active material, and making it less likely to cause the internal structure to collapse.

7. The biomimetic quantum dot 3D structure of the metal-ion battery according to claim 4, characterized in that: On the substrate (2) of the positive and negative electrodes of the single-sided chamber structure, the symmetrically arranged main chamber (4) and sub-chamber (6) are single-sided 3D geometric structures with micron or nanometer-scale quantum dot size; on the substrate (2) of the positive and negative electrodes of the double-sided chamber structure, the symmetrically arranged main chamber (4) and sub-chamber (6) are double-sided 3D geometric structures with micron or nanometer-scale quantum dot size.

8. The biomimetic quantum dot 3D structure of the metal-ion battery according to claim 7, characterized in that: The cylindrical partitions (5) of all the main chambers (4) on the substrate (2), the inner bottom surface (10) of the main chamber, and the fin partitions (7) of all the sub-chambers (6) and the inner bottom surface (13) of the sub-chamber are integrally formed in one piece and are made of the same material as the substrate (2).

9. The biomimetic quantum dot 3D structure of the metal-ion battery according to claim 7, characterized in that... : A thin film layer of positive electrode surface active material and negative electrode surface active material is respectively provided on the top surface (8), inner wall surface (9), and inner bottom surface (10) of the cylindrical partition of all the main chambers (4) on the substrate (2) of the positive electrode and negative electrode.

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