High-sealing-performance battery for fully-implanted artificial cochlea

Abstract

The utility model relates to the technical field of artificial cochlea accessories, in particular to a high-sealing battery for a fully-implanted artificial cochlea, which comprises a positive electrode, a negative electrode and an electrolyte layer arranged between the positive electrode and the negative electrode, wherein a diaphragm is arranged in the middle of the electrolyte layer, and packaging layers are arranged on the outer sides of the positive electrode and the negative electrode; the packaging layer comprises an outer packaging layer, a middle packaging layer and an inner packaging layer which are sequentially sleeved from outside to inside, and tabs of the positive electrode and the negative electrode are connected to the outer packaging layer. And the internal packaging layer adopts the nano coating, so that a finer packaging structure can be provided, gaps and pores are reduced, body fluid is effectively prevented from permeating into the battery, the sealing performance of the battery is improved, and the service life of the battery is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cochlear implant accessory, especially to a high sealing battery for totally implanted cochlear implant. BACKGROUND

[0002] One of the key components of a totally implanted cochlear implant is its built-in battery. These batteries need to have high energy density, stable voltage output, and long-term reliability to ensure that patients can continuously and effectively use the cochlear implant. Currently, lithium-ion batteries are widely used in various medical devices, including cochlear implants, due to their high energy density and stable voltage output.

[0003] In the design of lithium-ion batteries, the choice of positive and negative electrode materials is crucial. High-stability and long-life materials, such as lithium iron phosphate and ternary lithium materials, are widely used. However, these materials are prone to corrosion and aging during long-term use, which can affect the performance and service life of the battery.

[0004] In addition, the packaging technology of existing batteries also has certain limitations. Metal, plastic or ceramic materials are packaged through welding or gluing, which can provide a certain degree of sealing, but still have small gaps and pores. In the human body environment, these gaps and pores may expand over time, causing body fluids to seep into the battery interior, further affecting the performance and life of the battery. SUMMARY

[0005] The utility model aims at solving the shortcomings of the prior art, such as the existence of small gaps and pores in existing batteries, and proposes a high sealing battery for totally implanted cochlear implant.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A high sealing battery for totally implanted cochlear implant is designed, which includes a positive electrode, a negative electrode, and an electrolyte layer arranged between the positive electrode and the negative electrode.

[0008] The middle part of the electrolyte layer is provided with a diaphragm, and the outer side of the positive electrode and the negative electrode is provided with a packaging layer.

[0009] The packaging layer includes an outer packaging layer, a middle packaging layer, and an inner packaging layer, which are sequentially arranged from the outside to the inside, and the tabs of the positive electrode and the negative electrode are connected to the outer packaging layer.

[0010] Further, the outer packaging layer includes a metal upper cover and a metal lower cover embedded with the metal upper cover.

[0011] An insulating washer is interposed between the metal upper cover and the metal lower cover, wherein the positive and negative electrode tabs are connected to the metal upper cover and the metal lower cover respectively.

[0012] Further, the positive and negative electrode tabs are provided with a first bending part at the penetration of the inner encapsulation layer, and the electrode tabs are provided with a second bending part at the penetration of the middle encapsulation layer.

[0013] The first bending part and the second bending part are arranged in a staggered manner.

[0014] Further, the middle encapsulation layer is a nanocomposite layer, and the inner encapsulation layer is a nanocoating layer.

[0015] Further, the nanocomposite layer is a carbon nanotube layer, and the nanocoating layer is a nanosilica or nanoalumina coating layer.

[0016] Further, the positive electrode is a lithium oxide layer or a nickel oxide layer, and the negative electrode is a graphene layer or a silicon-carbon composite material layer.

[0017] Further, the electrolyte layer is a lithium hexafluorophosphate layer, and the separator is a polyolefin layer or a polyethylene layer.

[0018] The utility model provides a kind of high sealing battery for full-implant cochlear implant, and beneficial effect is at:in the utility model, by adopting the way of three-layer encapsulation to positive and negative, for its arrangement waterproof performance, the inner encapsulation layer of inside adopts nanocoating and can provide more fine encapsulation structure, reduce gap and pore, to effectively prevent body fluid from seeping into battery interior, improve the sealing performance and service life of battery;

[0019] Secondly, the battery design and use material of the utility model can ensure that the patient will not be affected by battery problems, improve the use safety;In general, compared with prior art, it has significant superiority, and can effectively improve the performance and service life of cochlear implant. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic diagram of the utility model;

[0021] Figure 2 It is Figure 1 The A area amplification structure schematic diagram of

[0022] In the drawing: 1, positive electrode;11, tab;12, first bending part;13, second bending part;2, negative electrode;3, electrolyte layer;4, separator;5, encapsulation layer;51, outer encapsulation layer;511, metal upper cover;512, metal lower cover;513, insulating washer;52, middle encapsulation layer;53, inner encapsulation layer. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] Referring to Figures 1-2 For an embodiment of the utility model, it discloses a kind of high sealing battery for fully implanted cochlear implant, specifically in this embodiment, with the shape of button cell as an example, the battery includes anode 1, cathode 2 and electrolyte layer 3 being arranged between the anode 1 and cathode 2;

[0025] Wherein the middle part of the electrolyte layer 3 is provided with diaphragm 4, and the outer side of the anode 1 and the cathode 2 is provided with encapsulation layer 5;

[0026] The encapsulation layer 5 includes outer encapsulation layer 51, middle encapsulation layer 52 and inner encapsulation layer 53, which are sequentially sleeved from outside to inside, and the lug 11 of the anode 1 and the cathode 2 is connected to the outer encapsulation layer 51.

[0027] In some embodiments, the outer encapsulation layer 51 in the utility model includes metal upper cover 511 and metal lower cover 512 embedded with the metal upper cover 511, and the embedding mode of the metal upper cover 511 and the metal lower cover 512 in the embodiment is a conventional means for those skilled in the art, which will not be described here.

[0028] Of course, in order to realize the insulation between upper and lower covers, an insulating washer 513 is provided between the metal upper cover 511 and the metal lower cover 512 in the embodiment, wherein the lug 11 of the anode 1 and the cathode 2 is respectively connected to the metal upper cover 511 and the metal lower cover 512, and specifically, the two lugs 11 are connected by the metal upper cover 511 and the metal lower cover 512 to realize the lead-out of the anode and the cathode and realize external power supply.

[0029] On the basis of the above embodiment, the lug 11 of the anode 1 and the cathode 2 in the embodiment is provided with a first bending part 12 at the penetration of the inner encapsulation layer 53, and the lug 11 is provided with a second bending part 13 at the penetration of the middle encapsulation layer 52.

[0030] The first bending part 12 and the second bending part 13 are arranged in a staggered manner, and the design of the above staggered arrangement can make the hole positions of the inner encapsulation layer 53 and the middle encapsulation layer 52 for the lug 11 to be staggered, and the hole positions can be shielded from each other, so as to improve the sealing effect.

[0031] It should be noted that the middle encapsulation layer 52 in the embodiment is a nanocomposite material layer, and the inner encapsulation layer 53 is provided as a nanocoating.

[0032] Specifically, the nanocomposite layer in the embodiment is a carbon nanotube layer, and the nanocoating is a nanosilica or nanoalumina coating.

[0033] In addition, in the embodiment, the positive electrode 1 is a lithium oxide layer or a nickel oxide layer, and the negative electrode 2 is a graphene layer or a silicon-carbon composite material layer. The selection of the positive and negative electrode materials is crucial for the service life of the battery. The technical solution selects positive and negative electrode materials with high stability and long service life, such as lithium oxide, nickel oxide, lithium sulfide, etc. The negative electrode 2 adopts a graphene layer or a silicon-carbon composite material. These materials can effectively reduce the degradation of the charge and discharge performance of the battery during use, delay the capacity decline of the battery, and thus prolong the service life of the battery.

[0034] Furthermore, the electrolyte layer is a lithium hexafluorophosphate layer, and the separator 4 is a polyolefin layer or a polyethylene layer.

[0035] In the utility model, through adopting the three-layer packaging mode of the positive and negative electrodes, the waterproof performance of the battery is improved, the inner packaging layer 53 in the inside adopts the nanocoating to provide a more fine packaging structure, the gap and the pore are reduced, the body fluid is prevented from seeping into the inside of the battery, and the sealing performance and the service life of the battery are improved.

[0036] Secondly, the battery design and the use material of the utility model can ensure that the patient will not be affected by the battery problem, and the use safety is improved. In general, the technical solution has obvious superiority in improving the sealing performance, optimizing the positive and negative electrode materials, improving the energy density, improving the manufacturing process and the use safety, etc. compared with the prior art, and can effectively improve the performance and the service life of the cochlear implant.

[0037] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A highly sealed battery for fully implantable cochlear implants, characterized in that... It includes a positive electrode (1), a negative electrode (2), and an electrolyte layer (3) disposed between the positive electrode (1) and the negative electrode (2); The electrolyte layer (3) is provided with a diaphragm (4) in the middle, and an encapsulation layer (5) is provided on the outside of the positive electrode (1) and the negative electrode (2); The encapsulation layer (5) includes an outer encapsulation layer (51), a middle encapsulation layer (52) and an inner encapsulation layer (53) sequentially disposed from the outside to the inside, and the tabs (11) of the positive electrode (1) and the negative electrode (2) are connected to the outer encapsulation layer (51).

2. The highly sealed battery for fully implantable cochlear implants according to claim 1, characterized in that: The outer packaging layer (51) includes a metal upper cover (511) and a metal lower cover (512) fitted with the metal upper cover (511); An insulating gasket (513) is provided between the upper metal cover (511) and the lower metal cover (512), wherein the tabs (11) of the positive electrode (1) and the negative electrode (2) are respectively connected to the upper metal cover (511) and the lower metal cover (512).

3. The highly sealed battery for a fully implantable cochlear implant according to claim 2, characterized in that: The tabs (11) of the positive electrode (1) and the negative electrode (2) are provided with a first bending portion (12) at the penetration point of the inner encapsulation layer (53), and the tabs (11) are provided with a second bending portion (13) at the penetration point of the middle encapsulation layer (52). The first bend (12) and the second bend (13) are offset.

4. The highly sealed battery for fully implantable cochlear implants according to claim 1, characterized in that: The middle encapsulation layer (52) is a nanocomposite material layer, and the inner encapsulation layer (53) is a nanocoating.

5. The highly sealed battery for a fully implantable cochlear implant according to claim 4, characterized in that: The nanocomposite material layer is a carbon nanotube layer, and the nanocoating is a nano-silica or nano-alumina coating.

6. The highly sealed battery for a fully implantable cochlear implant according to claim 1, characterized in that: The positive electrode (1) is a lithium oxide layer or a nickel oxide layer, and the negative electrode (2) is a graphene layer or a silicon-carbon composite material layer.

7. A highly sealed battery for a fully implantable cochlear implant according to any one of claims 1-6, characterized in that: The electrolyte layer is a lithium hexafluorophosphate layer, and the separator (4) is a polyolefin layer or a polyethylene layer.

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