Flexible transparent detachable battery
By using a flexible and transparent battery soft packaging shell and plug-in electrode assembly design, the problem of inconvenient disassembly and maintenance of traditional batteries is solved, enabling rapid disassembly and replacement of batteries, improving battery flexibility and transparency, and reducing the risk of electrolyte leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN UNIVERSITY OF TECHNOLOGY
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional battery structures are inconvenient to disassemble and maintain, cannot meet the flexibility and transparency requirements of wearable devices, and have a high risk of electrolyte leakage.
The battery features a flexible and transparent soft-pack casing and plug-in electrode assembly design, combined with a sealed structure and snap-fit connection, enabling quick disassembly and replacement of the electrode assembly. The battery's flexibility and transparency are enhanced by the use of polyetheretherketone (PEEK) material.
It improves battery maintenance efficiency and safety, reduces maintenance costs, and enhances battery flexibility and transparency, making it suitable for a variety of usage scenarios.
Smart Images

Figure CN224153392U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, and in particular to a flexible, transparent, removable battery. Background Technology
[0002] With the rapid development of wearable devices, flexible display technology, and portable electronic devices, traditional rigid batteries, due to their fixed shape and opacity, can no longer meet the specific battery requirements of these emerging fields. For example, in wearable devices, there is a desire for devices to be more body-hugging, thin, and flexible, allowing for imperceptible wear during daily activities. Traditional batteries, with their fixed structures and inflexible casings, struggle to meet this requirement. Traditional battery structures typically employ an integrated design, with electrode components and other components fixedly encapsulated within the battery casing. While this design offers a degree of stability, it presents numerous inconveniences in battery maintenance and component replacement. Failures or replacements of electrodes or other components often require complex disassembly processes involving specialized personnel, increasing maintenance costs and time, and potentially leading to battery damage or safety hazards due to improper disassembly. Furthermore, the assembly of traditional battery structures during production is cumbersome, requiring multiple steps and tools, resulting in low production efficiency. Moreover, leaks or replacements of the internal electrolyte are difficult to address quickly, further limiting battery lifespan and reliability. In addition, electronic devices that use transparency and visibility as a selling point are on the rise, but existing battery structures are all made of non-transparent materials, which cannot meet the transparency requirements of visual devices.
[0003] Chinese utility model patent CN202042564U discloses a flat-plate secondary zinc-nickel battery with replaceable plates. This utility model features a negative electrode structure consisting of a metal plate or metal support with attached negative electrode active material. The negative electrode active material covers the metal plate or metal support or is located at the contact surface with the positive electrode plate. The positive electrode is a plate structure composed of a nickel foam current collector and nickel hydroxide active material, and is covered by a polypropylene permeable membrane. The electrolyte is located between the positive and negative electrode plates. A liquid dispensing valve is located at the top and bottom of each individual battery casing. This utility model has significant advantages such as high specific energy, wide availability of raw materials, low production cost, long battery life, easy replacement of positive and negative electrode plates, ability to recycle electrode plates, and no environmental pollution.
[0004] However, in this design, the electrodes are completely placed inside the housing. When replacing the electrode components, the housing needs to be completely disassembled. Before disassembly, all the electrolyte needs to be drained to avoid leakage during disassembly. Therefore, although it can make the electrode plate components replaceable, it still has the problem of inconvenient disassembly and maintenance. Utility Model Content
[0005] In view of the shortcomings in the above-mentioned background technology, this utility model proposes a flexible, transparent, and removable battery, which solves the problem of inconvenient battery disassembly and maintenance in the prior art.
[0006] The technical solution of this utility model is implemented as follows: A flexible, transparent, detachable battery includes a connecting platform connected to a battery soft packaging shell. An electrode assembly is inserted into the connecting platform, and a sealing structure is provided between the electrode assembly and the connecting platform. The electrode assembly is inserted into the battery soft packaging shell, which is filled with electrolyte. The electrode assembly includes a positive electrode shell, a separator shell, and a negative electrode shell, which are connected by a snap-fit structure. A positive electrode, a separator, and a negative electrode are respectively provided on the positive electrode shell, the separator shell, and the negative electrode shell.
[0007] Preferably, the connection platform includes a U-shaped block with a rectangular slot, and the battery soft packaging shell is disposed at the opening of the U-shaped block.
[0008] Preferably, the U-shaped block has a through hole communicating with the interior of the battery flexible packaging shell, and a valve is provided on the through hole. The battery flexible packaging shell is glued and fixed to the U-shaped block. The battery flexible packaging shell is a polyetheretherketone (PEEK) shell.
[0009] Preferably, the sealing structure includes an annular groove formed in a rectangular slot, and corresponding protrusions that mate with the annular groove are provided on the positive electrode shell, the diaphragm shell, and the negative electrode shell, with gaskets fitted over the protrusions. At least one annular groove and one protrusion are provided.
[0010] Preferably, the snap-fit structure includes a snap block disposed on the diaphragm housing, and snaps that cooperate with the snap block are provided on both the positive electrode housing and the negative electrode housing.
[0011] Preferably, sealing gaskets are provided on the mating surfaces of the positive electrode shell, the separator shell, and the negative electrode shell. Pull rings are correspondingly provided at the outer ends of the positive electrode shell, the separator shell, and the negative electrode shell.
[0012] The beneficial effects of this utility model are as follows: The detachable battery of this utility model, through the plug-in connection between the electrode assembly and the connecting platform, allows for quick connection and disconnection of the electrode assembly without the need for complex tools, significantly shortening maintenance time, reducing maintenance costs, and greatly improving battery maintenance efficiency and convenience. The sealed structure effectively prevents electrolyte leakage during use, further enhancing battery safety and reducing usage risks. Furthermore, by setting up a positive electrode shell, a separator shell, and a negative electrode shell to support the positive electrode, separator, and negative electrode respectively, and by using a snap-fit structure, the three shells, along with the positive electrode, separator, and negative electrode on them, are combined into an electrode assembly in modular form, making replacement more convenient and efficient. Moreover, this battery structure uses a soft-pack battery shell, utilizing its flexibility to facilitate implantation into existing devices such as wearable devices, meeting the needs of more usage scenarios. Attached Figure Description
[0013] To more clearly illustrate the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.
[0014] Figure 1 This is a schematic diagram of the external structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the connection platform and electrode assembly structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the exploded structure of the electrode assembly of this utility model;
[0018] Figure 5 This is a schematic diagram of the exploded structure of the electrode assembly from another perspective of this utility model;
[0019] In the diagram: 1: Connecting platform, 2: Battery soft packaging shell, 3: Electrode assembly, 31: Positive electrode shell, 32: Separator shell, 33: Negative electrode shell, 34: Positive electrode, 35: Separator, 36: Negative electrode, 11: U-shaped block, 12: Rectangular slot, 13: Through hole, 14: Valve, 41: Annular groove, 42: Protrusion, 43: Washer, 51: Locking block, 52: Buckle, 53: Sealing gasket, 54: Pull ring. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figure 1 , 2 As shown in Embodiment 1, a flexible, transparent, and removable battery includes a connecting platform 1 connected to a battery soft packaging shell 2. An electrode assembly 3 is inserted into the connecting platform 1, and a sealing structure is provided between the electrode assembly 3 and the connecting platform 1. The electrode assembly 3 is inserted into the battery soft packaging shell 2, which is filled with electrolyte. The sealing structure effectively prevents electrolyte leakage during use, further enhancing battery safety and reducing usage risks. Specifically, the electrode assembly 3 includes a positive electrode shell 31, a diaphragm shell 32, and a negative electrode shell 33, which are connected by a snap-fit structure. A positive electrode 34, a diaphragm 35, and a negative electrode 36 are respectively mounted on the positive electrode shell 31, diaphragm shell 32, and negative electrode shell 33. In this embodiment, the positive electrode shell, diaphragm shell, and negative electrode shell respectively support the positive electrode, diaphragm, and negative electrode. The positive electrode 34, diaphragm 35, and negative electrode 36 can be optionally fixed to the positive electrode shell 31, diaphragm shell 32, and negative electrode shell 33 by adhesive bonding, facilitating replacement and disassembly in case of damage. By using the snap-fit structure, the three shells—positive electrode shell, diaphragm shell, and negative electrode shell—along with the positive electrode, diaphragm, and negative electrode on them, are combined into an electrode assembly in a modular form, making replacement more convenient and efficient.
[0022] In this embodiment, the electrode assembly and the connection platform are connected by a plug-in method, which allows the electrode assembly to be quickly plugged into and detached from the connection platform without the need for complicated tools. This greatly shortens maintenance time, reduces maintenance costs, and significantly improves the maintenance efficiency and convenience of the battery.
[0023] As a further specific implementation, in this embodiment, the battery soft packaging shell 2 is a polyetheretherketone (PEEK) shell. This battery structure uses a soft packaging shell, specifically a PEEK shell, which, due to its flexibility, can be easily embedded into existing devices such as wearable devices, meeting the needs of more usage scenarios. As a flexible and transparent substrate material, PEEK gives the battery the characteristics of visibility and micro-folding.
[0024] Additionally, as a further optional implementation, zinc sulfate electrolyte can be used as the electrolyte in this embodiment. Zinc sulfate electrolyte, as a relatively transparent ionic liquid electrolyte, can ensure ion conduction while maintaining high transparency, allowing more light to pass through the battery. The positive and negative electrodes are carbon nanotube electrodes. Carbon nanotubes possess excellent electrical properties and flexibility; fabricating them into thin-film electrodes allows them to maintain good conductivity in a bent state, ensuring the battery's flexibility.
[0025] Example 2: A flexible, transparent, removable battery, based on Example 1, such as... Figure 3 As shown, the connection platform 1 includes a U-shaped block 11 with a rectangular slot 12. The battery soft-pack shell 2 is disposed at the opening of the U-shaped block 11. In this embodiment, the electrode assembly is inserted into the rectangular slot, with its inner end inserted into the inside of the battery soft-pack shell and in contact with the electrolyte inside the battery soft-pack shell.
[0026] In a further specific embodiment, the U-shaped block 11 has a through hole 13 communicating with the interior of the battery soft packaging shell 2, and a valve 14 is provided on the through hole. The valve allows for the injection, replenishment, and replacement of the electrolyte. In this embodiment, the battery soft packaging shell 2 is adhered and fixed to the U-shaped block 11.
[0027] Example 3, a flexible, transparent, removable battery, such as Figure 3 , 4 As shown in Figure 5, based on Embodiment 2, the sealing structure includes an annular groove 41 formed on the rectangular slot 12. The positive electrode shell 31, the diaphragm shell 32, and the negative electrode shell 33 are respectively provided with protrusions 42 that cooperate with the annular groove 41. In this embodiment, after the positive electrode shell 31, the diaphragm shell 32, and the negative electrode shell 33 are combined, the protrusions on them form a protrusion ring. After combination, a gasket 43 is placed on the protrusion. Thus, after being inserted into the rectangular slot, the protrusion ring can cooperate with the annular groove to fix the position of the electrode assembly. The gasket can be made of polyetheretherketone material, which has the characteristics of transparency and flexibility. The gasket fills the gap between the annular groove and the protrusion ring to achieve a seal and prevent the internal electrolyte from leaking out.
[0028] At least one annular groove 41 and one protrusion 42 are provided to improve the sealing effect. In this embodiment, two annular grooves are provided, and two protrusions are provided on the positive electrode shell 31, the diaphragm shell 32, and the negative electrode shell 33 to form two protruding rings, thereby achieving a tighter fit and a better sealing effect.
[0029] As a further embodiment, the snap-fit structure includes snap blocks 51 disposed on the diaphragm housing 32, and snap fasteners 52 that cooperate with snap blocks 51 are provided on both the positive electrode housing 31 and the negative electrode housing 33. In this embodiment, two pairs of snap blocks are provided on both sides of the diaphragm housing, and snap fasteners corresponding to the snap blocks are provided on both sides of the positive electrode housing 31 and the negative electrode housing 33. Position locking is achieved by the cooperation of snap fasteners and snap blocks. After the snap fasteners and snap blocks are engaged, the washer is fitted onto the protrusion and then inserted into the rectangular slot to complete the assembly.
[0030] As a further optional implementation, in order to achieve a sealing effect, a sealing gasket 53 is provided on the mating surface of the positive electrode shell 31, the diaphragm shell 32 and the negative electrode shell 33. So that after the adjacent shells are connected by buckles and blocks, the sealing gasket can fill the gap and further prevent liquid leakage.
[0031] In addition, to facilitate the application of force during disassembly, pull rings 54 are provided at the outer ends of the positive electrode shell 31, the diaphragm shell 32 and the negative electrode shell 33. During disassembly, the pull rings are pulled outward to pull the entire electrode assembly out of the rectangular slot. Then, the gaskets on the outside are removed, and the clips are separated from the clips to achieve disassembly. After replacing the damaged electrode or diaphragm, the assembly can be reassembled.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A flexible transparent detachable battery, characterized by: Includes a connecting platform (1), which is connected to a battery soft packaging shell (2). An electrode assembly (3) is inserted into the connecting platform (1). A sealing structure is provided between the electrode assembly (3) and the connecting platform (1). The electrode assembly (3) is inserted into the battery soft packaging shell (2), which is filled with electrolyte. The electrode assembly (3) includes a positive electrode shell (31), a diaphragm shell (32) and a negative electrode shell (33), which are connected by a snap-fit structure; a positive electrode (34), a diaphragm (35) and a negative electrode (36) are respectively provided on the positive electrode shell (31), the diaphragm shell (32) and the negative electrode shell (33).
2. The flexible transparent removable battery of claim 1, wherein: The connection platform (1) includes a U-shaped block (11), on which a rectangular slot (12) is provided, and a battery soft packaging shell (2) is provided at the opening of the U-shaped block (11).
3. The flexible, transparent, removable battery according to claim 2, characterized in that: The U-shaped block (11) has a through hole (13) that connects to the inside of the battery soft packaging shell (2), and a valve (14) is provided on the through hole.
4. The flexible transparent removable battery of claim 3, wherein: The battery soft packaging shell (2) is glued and fixed to the U-shaped block (11).
5. The flexible transparent removable battery of claim 4, wherein: The battery soft packaging shell (2) is a polyetheretherketone shell.
6. The flexible transparent detachable battery according to any one of claims 2-5, wherein: The sealing structure includes an annular groove (41) formed on a rectangular slot (12), and a protrusion (42) corresponding to the annular groove (41) on the positive electrode shell (31), the diaphragm shell (32) and the negative electrode shell (33), and a gasket (43) is provided on the protrusion (42).
7. The flexible transparent removable battery of claim 6, wherein: At least one annular groove (41) and a protrusion (42) are provided.
8. The flexible transparent detachable battery according to claim 1 or 7, wherein: The buckle structure includes a buckle (51) disposed on the diaphragm shell (32), and buckles (52) that cooperate with the buckle (51) are provided on both the positive electrode shell (31) and the negative electrode shell (33).
9. The flexible transparent removable battery of claim 8, wherein: The positive electrode shell (31), the diaphragm shell (32) and the negative electrode shell (33) are provided with sealing gaskets (53) on their mating surfaces.
10. The flexible transparent removable battery of claim 9, wherein: Pull rings (54) are provided at the outer ends of the positive electrode shell (31), the diaphragm shell (32) and the negative electrode shell (33).
Citation Information
Patent Citations
Flat plate type zinc-nickel secondary battery with replaceable electrode plate and electrolyte
CN202042564U