High-efficiency lithium ion battery device

Abstract

The utility model discloses a high-efficiency lithium ion battery device, which relates to the technical field of lithium ion batteries, and comprises a shell body, a series assembly is arranged in the shell body, and the series assembly comprises a battery panel, a contact block, a positive electrode connecting piece, a negative electrode connecting piece, an insulating piece, a positive electrode column and a negative electrode column, the outer surfaces of the four groups of battery panels are fixedly connected to the inner wall of the shell body, and the bottom surfaces of the two groups of contact blocks are fixedly connected to the top surfaces of the battery panels. The cover plate is insulated through the insulating sheet, the plurality of groups of cell panels are connected in series, and the voltage of each cell panel can be added, so that the voltage of the whole system is increased, which is very beneficial to the application requiring high-voltage power supply, and in some cases, the series connection can reduce line loss and improve the energy conversion efficiency of the system.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion batteries, in particular to a high-performance lithium ion battery device. Background Art

[0002] High-performance lithium-ion batteries are a key technology widely used in modern energy storage and mobile devices. The development of their structure and materials continues to promote the improvement of battery performance. Lithium-ion batteries are composed of a positive electrode (usually using materials such as lithium cobalt oxide and lithium iron phosphate) and a negative electrode (such as graphite).

[0003] After searching, the applicant discovered a Chinese patent disclosure for "A Multi-mode High-efficiency Energy Balancer for Lithium-ion Battery Systems" with the publication (announcement) number "CN207967973U". This patent primarily prevents mutual influence between different battery packs through electrical isolation of the battery packs. It uses a flyback transformer as a medium for energy conversion, which reduces the size of the balancer and simplifies the topology circuit principle. It introduces a dual energy balancing strategy with two batteries as one battery unit. The balanced energy transfer is efficient, the balancing speed is fast, and the control capability of the balancing current is strong. While achieving energy balance between battery cells within each battery pack, it also achieves energy balance between different battery packs and between battery cells in different battery packs. However, the original device may not be able to connect multiple battery groups in series. Therefore, we propose a high-efficiency lithium-ion battery device. Utility Model Content

[0004] The purpose of the utility model is to provide a high-performance lithium-ion battery device.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-efficiency lithium-ion battery device, comprising a shell body, wherein a series assembly is provided inside the shell body, wherein the series assembly includes a battery plate, a contact block, a positive electrode connecting piece, a negative electrode connecting piece, an insulating sheet, a cover plate, a positive electrode column and a negative electrode column, wherein the outer surfaces of four groups of the battery plates are fixedly connected to the inner wall of the shell body, the bottom surfaces of two groups of the contact blocks are fixedly connected to the top surfaces of the battery plates, the inner walls of the positive electrode connecting pieces are fixedly connected to the outer surfaces of the contact blocks, and the inner walls of the negative electrode connecting pieces are fixedly connected to the outer surfaces of the contact blocks, and a limit assembly is provided inside the shell body.

[0006] As a further solution of the present invention: the limiting assembly includes a shockproof plate, a fixing tape and a limiting block, the top surfaces of the two groups of shockproof plates are fixedly connected to the bottom surface of the solar panel, and the fixing tape is wrapped around and connected to the outer surface of the solar panel.

[0007] As a further solution of the present invention: one side of the limit block is fixedly connected to the outer surface of the solar panel.

[0008] As a further solution of the present invention: the bottom surface of the insulating sheet is fixedly connected to the top surface of the positive electrode connecting sheet, and is also fixedly connected to the top surface of the negative electrode connecting sheet.

[0009] As a further solution of the present invention: the bottom surface of the cover plate is fixedly connected to the top surface of the insulating sheet, and the bottom surface of the positive electrode column is fixedly connected to the top surface of the cover plate.

[0010] As a further solution of the present invention: the bottom surface of the negative electrode column is fixedly connected to the top surface of the cover plate.

[0011] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The present invention connects multiple groups of solar panels in series through the arrangement of series components, using contact blocks, connecting the contact blocks using positive and negative connecting pieces, and insulating the cover plates with insulating sheets. By connecting multiple groups of solar panels in series, the voltage of each solar panel can be added together, thereby increasing the voltage of the entire system. This is very beneficial for applications that require high voltage power supply. In some cases, the series connection can reduce line losses and improve the energy conversion efficiency of the system.

[0013] 2. The present invention improves the reliability of the battery in harsh environments and strong vibrations, reduces the failure rate, and reduces the impact of mechanical stress and the external environment on the battery by setting a limit component and strengthening the design of the battery pack, such as using impact-resistant materials and structures, thereby extending the battery life and reducing the replacement frequency and related costs.

[0014] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of a battery panel in an embodiment of the present utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the series-connected components in the embodiment of the present utility model;

[0018] Figure 4 Schematic diagram of the limiting component in the embodiment of the present utility model.

[0019] In the figure: 1. Shell body; 2. Series assembly; 21. Battery plate; 22. Contact block; 23. Positive connecting piece; 24. Negative connecting piece; 25. Insulating sheet; 26. Cover plate; 27. Positive column; 28. Negative column; 3. Limiting assembly; 31. Shockproof sheet; 32. Fixing tape; 33. Limiting block. DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0021] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] Please see the attached Figure 1 -Attached Figure 4 The present invention provides a high-efficiency lithium-ion battery device, including a shell body 1. A series assembly 2 is provided inside the shell body 1. The series assembly 2 includes a battery plate 21, a contact block 22, a positive electrode connecting piece 23, a negative electrode connecting piece 24, an insulating sheet 25, a cover plate 26, a positive electrode column 27, and a negative electrode column 28. The outer surfaces of the four groups of battery plates 21 are fixedly connected to the inner wall of the shell body 1, the bottom surfaces of the two groups of contact blocks 22 are fixedly connected to the top surface of the battery plates 21, the inner walls of the positive electrode connecting piece 23 are fixedly connected to the outer surfaces of the contact blocks 22, and the inner walls of the negative electrode connecting piece 24 are fixedly connected to the outer surfaces of the contact blocks 22. A limit assembly 3 is provided inside the shell body 1.

[0023] In one embodiment of the present invention, the limiting assembly 3 includes a shock-proof plate 31, a fixing tape 32 and a limiting block 33. The top surfaces of the two sets of shock-proof plates 31 are fixedly connected to the bottom surface of the solar panel 21, and the fixing tape 32 is wrapped around and connected to the outer surface of the solar panel 21.

[0024] In one embodiment of the present invention, one side of the limiting block 33 is fixedly connected to the outer surface of the solar panel 21 .

[0025] In one embodiment of the present invention, the bottom surface of the insulating sheet 25 is fixedly connected to the top surface of the positive electrode connecting sheet 23 , and is also fixedly connected to the top surface of the negative electrode connecting sheet 24 .

[0026] In one embodiment of the present invention, the bottom surface of the cover plate 26 is fixedly connected to the top surface of the insulating sheet 25 , and the bottom surface of the positive electrode column 27 is fixedly connected to the top surface of the cover plate 26 .

[0027] In one embodiment of the present invention, the bottom surface of the negative electrode column 28 is fixedly connected to the top surface of the cover plate 26 .

[0028] Example 1, please refer to the attached Figure 1 -Attached Figure 3 Through the setting of the contact block 22, high-quality contact blocks 22 can reduce contact resistance, optimize current flow, improve battery charging and discharging efficiency, and enhance overall energy density. The material of the contact block 22 generally has good corrosion resistance and wear resistance, which helps the battery maintain stable performance during long-term use.

[0029] Example 2, please refer to the attached Figure 1 -Attached Figure 4 By setting the shockproof sheet 31, the shockproof sheet 31 can effectively absorb and reduce external shocks and vibrations, preventing these forces from causing direct damage to the battery, especially in a mobile or vibration-prone environment, which can improve the overall durability of the battery.

[0030] Specifically, by setting up the series assembly 2, multiple groups of battery panels 21 are connected in series through the contact block 22, the contact block 22 is connected using the positive electrode connecting piece 23 and the negative electrode connecting piece 24, and the cover plate 26 is insulated by the insulating sheet 25. By connecting the multiple groups of battery panels 21 in series, the voltage of each battery panel 21 can be added together, thereby increasing the voltage of the entire system. This is very beneficial for applications that require high voltage power supply. In some cases, the series connection can reduce line loss and improve the energy conversion efficiency of the system.

[0031] Specifically, by setting the limit component 3 and strengthening the design of the battery pack, such as using impact-resistant materials and structures, the reliability of the battery in harsh environments and strong vibrations can be improved, the failure rate can be reduced, and the impact of mechanical stress and the external environment on the battery can be reduced, thereby extending the battery life and reducing the replacement frequency and related costs.

[0032] Working principle:

[0033] First, the staff put four groups of battery panels 21 together, then placed two groups of contact blocks 22 at the contact points of the battery panels 21, and then placed the positive connecting piece 23 and the negative connecting piece 24 on the top of the contact block 22, and then placed it inside the shell body 1 through the cover plate 26, and placed the positive pole 27 and the negative pole 28 on the top of the cover plate 26. The efficiency of the battery voltage was improved by connecting them in series, and then the shaking of the battery panel 21 inside the shell body 1 was reduced by installing a shock-proof plate 31 at the bottom of the battery panel 21, wrapping a fixing tape 32 around the battery panel 21, and installing a limit block 33 on the top of the battery panel 21. At this point, the entire workflow is completed.

[0034] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0036] It should be noted that the equipment structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. On the premise that those skilled in the art understand the principle of the above-mentioned utility model, they can clearly know the details of its power mechanism, power supply system and control system. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art.

[0037] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0038] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0039] For those skilled in the art, it is possible to make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of the present invention, and they still fall within the scope of protection of the present invention.

Claims

1. A high-performance lithium-ion battery device, comprising a housing body (1), characterized in that: A series assembly (2) is provided inside the shell body (1), and the series assembly (2) includes a battery plate (21), a contact block (22), a positive electrode connecting piece (23), a negative electrode connecting piece (24), an insulating piece (25), a cover plate (26), a positive electrode column (27), and a negative electrode column (28). The outer surfaces of the four groups of battery plates (21) are fixedly connected to the inner wall of the shell body (1), the bottom surfaces of the two groups of contact blocks (22) are fixedly connected to the top surface of the battery plate (21), the inner wall of the positive electrode connecting piece (23) is fixedly connected to the outer surface of the contact block (22), and the inner wall of the negative electrode connecting piece (24) is fixedly connected to the outer surface of the contact block (22). A limiting assembly (3) is provided inside the shell body (1).

2. The high-performance lithium-ion battery device according to claim 1, characterized in that: The limiting assembly (3) comprises a shockproof sheet (31), a fixing tape (32) and a limiting block (33); the top surfaces of the two groups of shockproof sheets (31) are fixedly connected to the bottom surface of the battery panel (21); and the fixing tape (32) is wound around and connected to the outer surface of the battery panel (21).

3. The high-performance lithium-ion battery device according to claim 2, characterized in that: One side of the limit block (33) is fixedly connected to the outer surface of the solar panel (21).

4. The high-performance lithium-ion battery device according to claim 1, wherein: The bottom surface of the insulating sheet (25) is fixedly connected to the top surface of the positive electrode connecting sheet (23), and is also fixedly connected to the top surface of the negative electrode connecting sheet (24).

5. The high-performance lithium-ion battery device according to claim 1, wherein: The bottom surface of the cover plate (26) is fixedly connected to the top surface of the insulating sheet (25), and the bottom surface of the positive electrode column (27) is fixedly connected to the top surface of the cover plate (26).

6. The high-performance lithium-ion battery device according to claim 1, characterized in that: The bottom surface of the negative electrode column (28) is fixedly connected to the top surface of the cover plate (26).

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