Battery and electronic equipment
By forming positive electrodes and negative electrodes at both ends of the battery body, and installing insulating tape and conductive parts on the positive electrodes, and plating an isolation film on the exposed part, the problem of the battery being easily corroded by sweat is solved, and higher waterproof, corrosion resistance and use safety are achieved.
Patent Information
- Application Number
- CN202421238831.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During use, existing batteries are easily electrochemical and galvanic corrosion caused by sweat, which leads to liquid leakage, which poses safety risks.
By forming a positive electrode and a negative electrode at both ends of the battery body, and a first insulating tape and a first conductive member are provided on the positive electrode. The second conductive member is directly connected to the negative electrode, and an isolation film is plated in the exposed part to isolate the conductive member and the outer shell of the battery body to prevent corrosion.
It effectively avoids the short circuit of the positive and negative electrodes, ensures the stability of the battery, and prevents sweat corrosion through the isolation film, improves the invasion ability of the battery's waterproof, sweat-proof and other corrosion fluids, reduces the risk of rust on metal components, and improves the safety during use.
Smart Images
Figure CN222813798U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, in particular to a battery and electronic equipment. Background Art
[0002] Smart wearable or 3C digital electronic consumer products use batteries, the polarity or shell of the batteries is metal, and the batteries are assembled with smart wearable or 3C digital electronic consumer products. When smart wearable or 3C digital electronic consumer products are in use, the batteries come into contact with sweat (whose pH value is weakly acidic or weakly alkaline) due to the intrusion of human sweat. When the battery is in this environment for a long time, the metal part of the battery is prone to electrochemical corrosion and galvanic corrosion caused by sweat, which further deteriorates and causes battery leakage, posing a safety risk.
[0003] At present, smart wearable or 3C digital electronic consumer products are usually waterproof, sweat-proof and other corrosive liquids. In some special designs, smart wearable or 3C digital electronic consumer products do not have waterproof and anti-corrosive liquid functions, or the waterproof and anti-corrosive liquids fail, and the battery itself needs to have anti-corrosive liquid intrusion measures. However, in the context of smart wearable or 3C digital electronic consumer products with compact structures, thin and light batteries and high-capacity designs, it is not appropriate to use plastic shells or metal covers to fully wrap the batteries for corrosion protection, making battery corrosion protection a difficult point. Utility Model Content
[0004] The technical problem to be solved by the embodiments of the utility model is to provide a battery and an electronic device to solve the problem that the battery is easily corroded in the prior art, thereby improving the safety during use.
[0005] The utility model discloses a battery, comprising: a battery body, wherein a positive electrode and a negative electrode are respectively formed at opposite ends of the battery body, a first insulating tape is arranged on the positive electrode, a via is arranged on the first insulating tape, a first conductive member is connected to the positive electrode, the first conductive member is located on a side of the first insulating tape away from the positive electrode, so that the first conductive member is connected to the positive electrode through the via, a second conductive member is connected to the negative electrode, and an isolation film is plated on exposed parts of the battery body, the first insulating tape, the first conductive member and the second conductive member.
[0006] Optionally, the isolation film is made of poly(para-xylylene) polymer.
[0007] Optionally, a second insulating tape is provided on the outer ring of the battery body to wrap the side surface of the battery body.
[0008] Optionally, a third insulating tape is provided on the negative electrode of the battery body, and the third insulating tape wraps the second conductive member and the negative electrode.
[0009] Optionally, a fourth insulating paper is provided on the positive electrode of the battery body, and the fourth insulating paper wraps the first conductive member and the first insulating paper.
[0010] Optionally, the first conductive member is a positive electrode sheet, a wire or a flexible printed circuit board.
[0011] Optionally, the second conductive member is a negative electrode plate, a wire or a flexible circuit board.
[0012] Optionally, the isolation film has a thickness of 1 μm to 10 μm.
[0013] Optionally, the battery is a cylindrical battery.
[0014] The utility model also discloses an electronic device, comprising the battery described in any one of the above items.
[0015] Compared with the prior art, the beneficial effects of the battery and electronic device provided by the embodiment of the utility model are: through the positive electrode and the negative electrode formed at the two ends of the battery body, and the first insulating tape provided on the positive electrode, when the first conductive part is connected to the positive electrode, the first conductive part and the outer shell of the battery body can be isolated to avoid the positive and negative short circuit, so as to ensure the stability of the battery during use. The second conductive part is directly connected to the negative electrode, so that the battery body can power the electronic device through the first conductive part and the second conductive part. In order to prevent the battery from being corroded by sweat and salt spray, it is necessary to plate an isolation film on the exposed parts of the battery body, the first insulating tape, the first conductive part and the second conductive part to play an isolation role. By adopting the above method, it can have a certain degree of waterproofness and anti-invasion of corrosive liquids such as sweat, and the metal components are not easy to rust, so as to solve the problem that the battery is easily corroded in the prior art, thereby improving the safety during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:
[0017] Figure 1 It is a schematic diagram of an explosion of a battery provided in an embodiment of the utility model;
[0018] Figure 2 It is a structural schematic diagram of a battery body provided by an embodiment of the utility model.
[0019] The reference numerals in the figures are:
[0020] 100, battery; 110, battery body; 112, positive electrode; 114, negative electrode; 120, first insulating tape; 122, via; 130, first conductive member; 140, second conductive member; 150, isolation film; 160, second insulating tape; 170, third insulating tape; 180, fourth insulating tape. DETAILED DESCRIPTION
[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.
[0022] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a battery 100, including: a battery body 110, a positive electrode 112 and a negative electrode 114 are formed at opposite ends of the battery body 110, a first insulating tape 120 is arranged on the positive electrode 112, a through hole 122 is arranged on the first insulating tape 120, a first conductive member 130 is connected to the positive electrode 112, the first conductive member 130 is located on the side of the first insulating tape 120 away from the positive electrode 112, so that the first conductive member 130 is connected to the positive electrode 112 through the through hole 122, a second conductive member 140 is connected to the negative electrode 114, and an isolation film 150 is plated on the exposed parts of the battery body 110, the first insulating tape 120, the first conductive member 130 and the second conductive member 140.
[0023] Specifically, the opposite ends of the battery body 110 are respectively a positive electrode 112 and a negative electrode 114, so as to realize the function of powering smart wearable or 3C digital electronic consumer products. Due to the relatively compact internal space, it is impossible to use a traditional battery compartment, and a positive terminal and a negative terminal are set in the battery compartment. In this embodiment, laser welding is adopted to weld the first conductive member 130 to the positive electrode 112, and the second conductive member 140 is welded to the negative electrode 114. When realizing the above connection, in order to avoid the positive electrode 112 being connected to the first conductive member 130, the first conductive member 130 contacts the outer shell of the battery body 110, resulting in a short circuit between the positive and negative electrodes, a first insulating tape 120 is provided on the positive electrode 112, and a via 122 is provided on the first insulating tape 120, so that the first conductive member 130 forms an electrical connection relationship with the positive electrode 112 through the above via 122, and the first conductive member 130 is isolated from contact with other places of the battery body 110 by the first insulating tape 120 to ensure the reliability of the electrical connection.
[0024] When the second conductive member 140 is connected to the negative electrode 114, it will not be affected by the positive electrode 112, and the second conductive member 140 can be directly welded to the negative electrode 114. After the above connection is completed, in order to avoid corrosion due to sweat, salt spray and other environments, it is necessary to plate an isolation film 150 on the entire connected structure to protect the battery 100. The positions where the first conductive member 130 and the second conductive member 140 need to be electrically connected to other components can be physically cleared later to leave an electrical connection area.
[0025] The battery 100 provided in the embodiment of the present application, through the positive electrode 112 and the negative electrode 114 formed at both ends of the battery body 110, and the first insulating tape 120 set on the positive electrode 112, can isolate the first conductive member 130 from the outer shell of the battery body 110 when the first conductive member 130 is connected to the positive electrode 112, avoiding the situation of positive and negative short circuit, so as to ensure the stability of the battery 100 when in use. The second conductive member 140 is directly connected to the negative electrode 114, so that the battery body 110 can power the electronic device through the first conductive member 130 and the second conductive member 140. In order to prevent the battery 100 from being corroded by sweat and salt spray, it is necessary to plate an isolation film 150 on the exposed parts of the battery body 110, the first insulating tape 120, the first conductive member 130 and the second conductive member 140 to play an isolation role. By adopting the above method, it can have a certain degree of waterproofness, anti-sweat and other corrosive liquids, and the metal components are not easy to rust, so as to solve the problem that the battery 100 is easily corroded in the prior art, thereby improving the safety during use.
[0026] In an optional embodiment of the present application, the material of the isolation film 150 is polyparaxylene polymer.
[0027] Specifically, the traditional treatment method usually adopts epoxy resin, polyvinyl chloride, silicone or nano glue as coating protection. The coating has poor density and the uniformity of coating thickness is difficult to control, so that the gaps cannot be filled in place, and pores are easily formed. Corrosive liquid invades from the pores, causing metal corrosion and rust accumulation of the battery 100. In the embodiment of the present application, the poly-p-dimethyl polymer is stable, chemically inert, has insulating effects and is resistant to weak acid and alkaline liquids, such as sweat, salt spray, seawater, etc. When the isolation film 150 is plated, vapor deposition technology is used, combined with the properties of the poly-p-dimethyl polymer itself, and its good penetration force forms a non-porous protective film evenly on the plated object to form a stable and reliable isolation effect. Moreover, the poly-p-dimethyl polymer can be deposited at edges and gaps to avoid affecting the water release performance and corrosion resistance due to the isolation film not covering a certain area.
[0028] like Figure 1 As shown, a second insulating tape 160 is disposed on the outer ring of the battery body 110 to wrap the side of the battery body 110 .
[0029] Specifically, the outer ring of the battery body 110 specifically refers to the peripheral side of the battery body 110. By arranging the second insulating tape 160 on the outer ring of the battery body 110, the battery body 110 can be protected, and the isolation film 150 plated on the outside of the battery body 110 can be protected, thereby reducing the probability of the isolation film 150 being invaded by the corrosive liquid due to damage. In addition, the second insulating tape 160 itself also has a certain isolation and protection effect, and can play a certain isolation role on the corrosive liquid, which is beneficial to protect the battery body 110 and the isolation film 150.
[0030] Please continue to refer to Figure 1 A third insulating paper 170 is disposed on the negative electrode 114 of the battery body 110 , and the third insulating paper 170 wraps the second conductive member 140 and the negative electrode 114 .
[0031] Specifically, by providing the third insulating tape 170 on the negative electrode 114 of the battery body 110, the second conductive member 140 and the negative electrode 114 can be protected, and the isolation film 150 plated on the outside of the negative electrode 114 and the second conductive member 140 can be protected, thereby reducing the probability of the isolation film 150 being invaded by the corrosive liquid due to damage. In addition, the third insulating tape 170 itself also has a certain isolation and protection effect, and can play a certain isolation role on the corrosive liquid, which is beneficial to protect the second conductive body, the negative electrode 114 and the isolation film 150.
[0032] Please continue to refer to Figure 1 A fourth insulating paper 180 is disposed on the positive electrode 112 of the battery body 110 , and the fourth insulating paper 180 wraps the first conductive member 130 and the first insulating paper 120 .
[0033] Similarly, by setting the fourth insulating tape 180 on the positive electrode 112 of the battery body 110, it is possible to protect the first conductive member 130 and protect the isolation film 150 plated on the outside of the first insulating tape 120 and the first conductive member 130, thereby reducing the probability of the isolation film 150 being invaded by the corrosive liquid due to damage. In addition, the fourth insulating tape 180 itself also has a certain isolation and protection effect, and can play a certain isolation role on the corrosive liquid. Through the mutual cooperation of the second insulating tape 160, the third insulating tape 170 and the fourth insulating tape 180, it is beneficial to form an all-round protection for the battery 100, as the first line of defense to prevent the erosion of the corrosive liquid, and there is also a second line of defense formed by the isolation film 150, so as to better improve the anti-corrosion performance of the battery 100, so as to improve the stability and reliability during use.
[0034] In an optional embodiment of the present application, the first conductive member 130 is a positive electrode plate, a wire or a flexible circuit board.
[0035] Specifically, in actual applications, the positive electrode 112 can be connected via a positive electrode plate, or a wire or a flexible circuit board can be used according to actual needs, as long as the electrical connection requirements can be met and the stability of the connection and the rationality of the internal space utilization can be guaranteed.
[0036] In an optional embodiment of the present application, the second conductive member 140 is a negative electrode plate, a wire or a flexible circuit board.
[0037] Similarly, in actual applications, the negative electrode 114 can be connected via a negative pole piece, or a wire or a flexible circuit board can be used according to actual needs, as long as the electrical connection requirements can be met and the stability of the connection and the rationality of the internal space utilization can be guaranteed.
[0038] In an optional embodiment of the present application, the thickness of the isolation film 150 is 1 μm to 10 μm.
[0039] For example, the thickness of the isolation film 150 can be set to 1μm, 3μm, 5μm, 7μm or 10μm. In actual applications, it can be set according to the size of the battery 100 and the specific electrical connection conditions to meet the requirements of economy and reliability during use.
[0040] In an optional embodiment of the present application, the battery 100 is a cylindrical battery 100. The above form can make the overall manufacturing process simpler, reduce the number of corners, facilitate the plating of the isolation film 150, and improve the yield rate during manufacturing. It can be understood that in actual applications, it can also be applied to other forms of batteries 100.
[0041] The utility model also discloses an electronic device, comprising the battery 100 in the aforementioned embodiment. The electronic device includes a mobile phone, a watch, a remote control or an intercom, etc. The electronic device includes the same structure and beneficial effects as the battery 100 in the aforementioned embodiment. The structure and beneficial effects of the battery 100 have been described in detail in the aforementioned embodiment, and will not be repeated here.
[0042] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.
Claims
1. A battery, characterized in that: include: A battery body, wherein a positive electrode and a negative electrode are respectively formed at opposite ends of the battery body, a first insulating tape is provided on the positive electrode, a via is provided on the first insulating tape, a first conductive member is connected to the positive electrode, the first conductive member is located on a side of the first insulating tape away from the positive electrode, so that the first conductive member is connected to the positive electrode through the via, a second conductive member is connected to the negative electrode, and an isolation film is plated on exposed portions of the battery body, the first insulating tape, the first conductive member and the second conductive member.
2. The battery according to claim 1, characterized in that The material of the isolation film is poly(para-xylylene) polymer.
3. The battery according to claim 2, characterized in that The outer ring of the battery body is provided with a second insulating tape to wrap the side surface of the battery body.
4. The battery according to claim 3, characterized in that A third insulating tape is arranged on the negative electrode of the battery body, and the third insulating tape wraps the second conductive member and the negative electrode.
5. The battery according to claim 4, characterized in that A fourth insulating tape is arranged on the positive electrode of the battery body, and the fourth insulating tape wraps the first conductive member and the first insulating tape.
6. The battery according to any one of claims 1 to 5, characterized in that: The first conductive member is a positive electrode sheet, a wire or a flexible circuit board.
7. The battery according to any one of claims 1 to 5, characterized in that: The second conductive member is a negative electrode plate, a wire or a flexible circuit board.
8. The battery according to any one of claims 1 to 5, characterized in that: The isolation film has a thickness of 1 μm to 10 μm.
9. The battery according to any one of claims 1 to 5, characterized in that: The battery is a cylindrical battery.
10. An electronic device, characterized in that: A battery comprising any one of claims 1 to 9.