Lithium ion battery

Abstract

The utility model discloses a lithium ion battery which comprises a battery body, tabs and a steel cap, and flat ends are arranged at two ends of the battery body; the two tabs extend outwards from the interior of the battery body through corresponding flat ends, the flat ends are bent to abut against the end face of the battery body, the tabs are bent upwards to form first bent parts abutting against the end face of the battery body, and first insulation pads are arranged between the first bent parts and the flat ends; the first bending part is bent upwards to form a second bending part, a second insulating pad is arranged on the outer side of the battery body, and the second bending part is bent downwards to form a third bending part which abuts against the second insulating pad; steel caps matched with the battery body cover the two ends of the battery body, and the inner bottom walls and the inner side walls of the steel caps abut against the second bent parts and the third bent parts respectively. When in use, power can be supplied through contact with the two steel caps, welding is not needed, assembly personnel can conveniently assemble, a user can conveniently disassemble and recycle in a classified mode, and environmental protection is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to a lithium ion battery. Background Art

[0002] Lithium-ion batteries are small devices that generate electricity and are used in a variety of products, such as electronic cigarettes. Electronic cigarettes are the choice of most smokers because they are easy to carry and can be used at any time, and do not produce harmful smoke. In particular, electronic cigarettes have become popular in recent years. For the health of users, a disposable electronic cigarette has been launched on the market.

[0003] However, the existing lithium-ion batteries are mainly connected to the terminals on the circuit board in the electronic cigarette by welding. This method is not convenient for assemblers to assemble, which affects the assembly efficiency. It is also not convenient for users to disassemble the lithium-ion batteries and classify and recycle the lithium-ion batteries, resulting in users often mixing other parts of the electronic cigarette with the electronic cigarette when cleaning, which is not conducive to environmental protection. Utility Model Content

[0004] The purpose of the utility model is to provide a lithium ion battery that can solve the above problems.

[0005] To achieve the above-mentioned purpose, the present invention provides a lithium-ion battery, comprising:

[0006] A battery body, wherein both ends of the battery body are provided with flat ends;

[0007] A tab, both tabs extending outward from the inside of the battery body through the corresponding flat end, the flat end being bent to abut against the end face of the battery body, the tab being bent upward to form a first bent portion abutting against the end face of the battery body, a first insulating pad being arranged between the first bent portion and the flat end, the first bent portion being bent upward to form a second bent portion, a second insulating pad being arranged on the outside of the battery body, and the second bent portion being bent downward to form a third bent portion abutting against the second insulating pad; and

[0008] Steel cap, both ends of the battery body are covered with the steel caps adapted thereto, and the inner bottom wall and the inner side wall of the steel cap are respectively in contact with the second bending portion and the third bending portion.

[0009] Optionally, a middle portion of the steel cap protrudes axially in a direction away from the battery body to form a contact portion.

[0010] Optionally, an insulating sleeve is further included, wherein the insulating sleeve wraps the battery body and the steel cap, and the contact portion passes through the insulating sleeve.

[0011] Optionally, the steel cap is a nickel-plated steel cap.

[0012] Optionally, the battery body is cylindrical.

[0013] Optionally, the first insulating pad and the second insulating pad are both green paper insulating pads.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the second bending portion and the third bending portion can be electrically connected to the steel cap to ensure the stability of the contact between the pole ear and the steel cap, which can effectively prevent the pole ear and the steel cap from being disconnected; when in use, the connection terminal on the electronic cigarette is in contact with the two steel caps to supply power, without welding, which is convenient for assemblers to assemble and for users to disassemble and classify for recycling later, which is environmentally friendly, has a simple overall structure, and is easy to produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is an explosion diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the fracture after the utility model hides the insulating sleeve and the steel cap.

[0018] Figure 3 It is a three-dimensional diagram of the utility model.

[0019] In the figure:

[0020] 100, battery body; 110, flat end;

[0021] 200, pole ear; 210, first bending portion; 220, second bending portion; 230, third bending portion;

[0022] 300, steel cap; 310, contact part;

[0023] 400, insulation sleeve;

[0024] 500, a first insulating pad;

[0025] 600. A second insulating pad. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the embodiments of the present invention, it should be understood that if there are directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, inside, outside, etc., the directions or positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the embodiments of the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In the embodiments of the present invention, unless otherwise clearly specified and limited, if there are terms such as "installed", "connected", "connected", "fixed", etc., they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0030] like Figures 1 to 3 As shown, an embodiment of the utility model provides a lithium-ion battery, including a battery body 100 , a tab 200 , a steel cap 300 and an insulating sleeve 400 .

[0031] The battery body 100 is cylindrical, and both ends of the battery body 100 are provided with flat ends 110, and the two pole ears 200 extend outward from the inside of the battery body 100 through the corresponding flat ends 110, and the two pole ears 200 are the positive pole ear 200 and the negative pole ear 200.

[0032] Furthermore, the flat end 110 is bent to abut against the end surface of the battery body 100 to save space and ensure stability.

[0033] Furthermore, the pole ear 200 is bent upward to form a first bending portion 210 abutting against the end face of the battery body 100, a first insulating pad 500 is arranged between the first bending portion 210 and the flat end 110, the first bending portion 210 is bent upward to form a second bending portion 220, and a second insulating pad 600 is arranged on the outside of the battery body 100 to prevent short circuit. Specifically, the first insulating pad 500 and the second insulating pad 600 are both green shell paper insulating pads, and further, the second bending portion 220 is bent downward to form a third bending portion 230 abutting against the second insulating pad 600.

[0034] Furthermore, both ends of the battery body 100 are covered with the steel cap 300 adapted thereto. Specifically, the steel cap 300 is preferably a nickel-plated steel cap 300 to improve the corrosion resistance, hardness and wear resistance of the steel cap 300. The inner bottom wall and the inner side wall of the steel cap 300 are respectively abutted against the second bending portion 220 and the third bending portion 230 to ensure the stability of the contact between the pole ear 200 and the steel cap 300, which can effectively prevent the pole ear 200 and the steel cap 300 from being disconnected. Since the second bending portion 220 and the third bending portion 230 can be electrically connected to the steel cap 300, power can be supplied by contacting the connecting terminals on the electronic cigarette with the two steel caps 300 during use. No welding is required, which is convenient for assemblers to assemble and for users to disassemble and classify for recycling later. It is environmentally friendly, has a simple overall structure, and is easy to produce.

[0035] In one embodiment, the middle portion of the steel cap 300 protrudes axially in a direction away from the battery body 100 to form a contact portion 310 so as to contact with a terminal on the electronic cigarette, thereby improving the stability of the connection.

[0036] In one embodiment, the insulating sleeve 400 wraps the battery body 100 and the steel cap 300, and the contact portion 310 passes through the insulating sleeve 400, so as to ensure the stability of the lithium-ion battery during use and enable the installation of the steel cap 300 to be more stable.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium ion battery, characterized in that: include: A battery body (100), wherein both ends of the battery body (100) are provided with flat ends (110); a pole lug (200), wherein both pole lugs (200) extend outward from the interior of the battery body (100) through the corresponding flat end (110), the flat end (110) being bent and abutting against the end surface of the battery body (100), the pole lug (200) being bent upward to form a first bent portion (210) abutting against the end surface of the battery body (100), a first insulating pad (500) being arranged between the first bent portion (210) and the flat end (110), the first bent portion (210) being bent upward to form a second bent portion (220), a second insulating pad (600) being arranged on the outer side of the battery body (100), the second bent portion (220) being bent downward to form a third bent portion (230) abutting against the second insulating pad (600); and A steel cap (300), both ends of the battery body (100) are covered with the steel caps (300) adapted thereto, and the inner bottom wall and the inner side wall of the steel cap (300) are respectively in contact with the second bending portion (220) and the third bending portion (230).

2. A lithium ion battery according to claim 1, characterized in that: The middle portion of the steel cap (300) protrudes in an axial direction away from the battery body (100) to form a contact portion (310).

3. A lithium ion battery according to claim 2, characterized in that: Also includes: An insulating sleeve (400), wherein the insulating sleeve (400) wraps the battery body (100) and the steel cap (300), and the contact portion (310) passes through the insulating sleeve (400).

4. A lithium ion battery according to any one of claims 1 to 3, characterized in that: The steel cap (300) is a nickel-plated steel cap (300).

5. A lithium ion battery according to any one of claims 1 to 3, characterized in that: The battery body (100) is cylindrical.

6. A lithium ion battery according to any one of claims 1 to 3, characterized in that: The first insulating pad (500) and the second insulating pad (600) are both green paper insulating pads.

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