CN216648388U

CN216648388U - Built-in ultra-thin lithium cell

Info

Publication number: CN216648388U
Application number: CN202123230648.2U
Authority: CN
Inventors: 武子美; 曹建勋; 许康峰
Original assignee: Dongguan Willis Electronics Co ltd
Current assignee: Dongguan Willis Electronics Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-31
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a built-in ultrathin lithium battery, which comprises an electric core, wherein third foam cotton and first foam cotton are symmetrically arranged on the left side and the right side of the electric core, the third foam cotton is arranged on the left side of the first foam cotton, second foam cotton and EVA foam cotton are symmetrically arranged on the front side and the rear side of the electric core, the second foam cotton is arranged at the front end of the EVA foam cotton, one end of the electric core is fixedly connected with a PCM, and the other end of the electric core is provided with formed DuPont paper. According to the battery, all parts in the device are combined together through the thin plates, the battery is ultrathin in size, the first Mala glue and the second Mala glue are symmetrically arranged on the outer side of the device, the outer side of the battery cell is fixed through the first Mala glue and the second Mala glue, the outer side of the battery cell is insulated from the wires, the battery cell has good adhesion, waterproofness and insulativity, a plurality of foam cotton are arranged around the battery cell of the device, and the service life of the battery cell is prolonged through the protection of the foam cotton on the battery cell.

Description

Built-in ultra-thin lithium cell

Technical Field

The utility model relates to the field of ultrathin lithium batteries, in particular to a built-in ultrathin lithium battery.

Background

A lithium battery is a type of battery using a nonaqueous electrolyte solution, using lithium metal or a lithium alloy as a positive/negative electrode material. Because the chemical characteristics of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high. With the development of scientific technology, lithium batteries have become the mainstream. Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996, and the safety, specific capacity, self-discharge rate and cost performance of rechargeable batteries were all superior to those of lithium ion batteries. Since lithium batteries are widely used, batteries which are portable and usable, and batteries which are light in weight and small in size are required, and thus a built-in ultra-thin lithium battery is designed.

The applicant finds that a Chinese patent discloses 'an ultrathin lithium battery' with the application number of '202021355095.6' through retrieval when applying the utility model, and the utility model mainly adopts the protection wheels, when the side walls of two groups of protection wheels and one ends of a positive lug and a negative lug are positioned on the same horizontal line, two groups of positioning screws are rotated clockwise, when one ends of the two groups of positioning screws are respectively contacted with the end surfaces of two groups of trapezoidal built-in grooves, the movement is stopped, the two groups of protection wheels can support and fix the ultrathin lithium battery, and convenience is brought to the protection work of the ultrathin lithium battery through the arranged protection wheels. But this device does not set up the protection and the insulation of maraca glue and bubble cotton realization to the battery.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a built-in ultrathin lithium battery.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a built-in ultra-thin lithium cell, includes electric core, electric core left and right sides symmetry is provided with that the third bubble is cotton, first bubble is cotton, the cotton left side at first bubble of third bubble, bilateral symmetry is provided with that the second bubble is cotton, the EVA bubble is cotton around electric core, the cotton front end at the EVA bubble of second bubble, the one end fixedly connected with PCM of electric core, the other end of electric core is provided with shaping dupont paper.

As a further description of the above technical solution:

two PC pieces are symmetrically arranged at the upper end and the lower end of the battery cell, and labels are arranged at the lower ends of the PC pieces.

As a further description of the above technical solution:

the PCM outside evenly is provided with two first maraca glues, two second maraca glues, second maraca glue one end fixedly connected with two plug cords.

As a further description of the above technical solution:

the plug cord comprises a yellow outer leaky line, a green outer leaky line, a black outer leaky line and a red outer leaky line, and terminal plugs are respectively arranged at the right ends of the yellow outer leaky line, the green outer leaky line, the black outer leaky line and the red outer leaky line in a pairwise connection mode.

The utility model has the following beneficial effects:

1. in the utility model, all parts in the device are combined by the thin plates, so that the ultra-thin volume of the battery is realized.

2. According to the utility model, the first and second Marla glues are symmetrically arranged on the outer side of the device, and the first and second Marla glues are used for fixing the outer side of the battery core and insulating the outer side and the wire, so that the device has good adhesive force, waterproofness and insulativity.

3. According to the utility model, the plurality of foam cotton are arranged around the battery cell of the device, and the battery cell is protected by the foam cotton, so that the service life of the battery cell is prolonged.

Drawings

Fig. 1 is a surface view of a built-in ultra-thin lithium battery according to the present invention;

fig. 2 is a side view of a built-in ultra-thin lithium battery according to the present invention;

fig. 3 is an exploded view of a built-in ultra-thin lithium battery according to the present invention.

Illustration of the drawings:

1. labeling; 2. a first malar glue; 3. a PC sheet; 4. soaking EVA cotton; 5. an electric core; 6. first foam; 7. a plug cord; 701. a terminal plug; 702. yellow outer leaky lines; 703. a green outer leaky line; 704. black outer leaky lines; 705. red outer leaky lines; 8. PCM; 9. second foam; 10. forming the DuPont paper; 11. second Mala glue; 12. and (5) third foam.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: the utility model provides a built-in ultra-thin lithium cell, including electric core 5, electric core 5 comprises the three section, electric core 5 left and right sides symmetry is provided with third bubble cotton 12, first bubble cotton 6, second bubble cotton 9, the cotton 4 protection to electric core 5 of EVA bubble, make the life of electric core 5 increase, third bubble cotton 12 is in the left side of first bubble cotton 6, electric core 5 front and back bilateral symmetry is provided with second bubble cotton 9, EVA bubble cotton 4, second bubble cotton 9 is at the cotton 4 front end of EVA bubble, the one end fixedly connected with PCM8 of electric core 5, PCM8 is used for protecting electric core 5, the other end of electric core 5 is provided with shaping dupont paper 10, shaping dupont paper 10 has good guard action, be fine insulating material.

Two PC sheets 3 are symmetrically arranged at the upper end and the lower end of an electric core 5, the PC sheets 3 have strong impact resistance and light weight, labels 1 are arranged at the lower ends of the PC sheets 3, the labels 1 are used for pasting parameters of the electric core 5, two first Mala glues 2 and two second Mala glues 11 are evenly arranged on the outer side of the PCM8, the first Mala glues 2 and the second Mala glues 11 fix the outer side of the electric core 5 and insulate the outer side and the wires, the adhesion, the waterproofness and the insulativity are good, two plug wires 7 are fixedly connected to one end of the second Mala glue 11, each plug wire 7 comprises a yellow outer leakage wire 702, a green outer leakage wire 703, a black outer leakage wire 704, a red outer leakage wire 705, the yellow outer leakage wire 702, the green outer leakage wire 703, the black outer leakage wire 704 and the red outer leakage wire 705 are set to be about 140mm, and the yellow outer leakage wire 702, the green outer leakage wire 703, the black outer leakage wire 703 and the black outer leakage wire 704, The right ends of the red outer leaky lines 705 are connected two by two and are respectively provided with terminal plugs 701.

The working principle is as follows: when using, assemble the device, inside all parts are that the film is in the same place, the ultra-thin of battery volume has been realized, device outside symmetry is provided with first maraca glue 2 and second maraca glue 11, glue 11 fixed to the 5 outsides of electric core through first maraca glue 2 and second maraca, and the insulation between outside and the line, there is fine viscous force, waterproof nature, insulating nature, set up a plurality of bubbles cotton around the electric core 5 of device, through the cotton protection to electric core 5 of bubble, make the life of electric core 5 increase.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A built-in ultra-thin lithium battery comprises an electric core (5), and is characterized in that: electric core (5) left and right sides symmetry is provided with third bubble cotton (12), first bubble cotton (6), third bubble cotton (12) is in the left side of first bubble cotton (6), the bilateral symmetry is provided with second bubble cotton (9), EVA bubble cotton (4) around electric core (5), second bubble cotton (9) are at the front end of EVA bubble cotton (4), the one end fixedly connected with PCM (8) of electric core (5), the other end of electric core (5) is provided with shaping dupont paper (10).

2. The built-in ultra thin lithium battery of claim 1, wherein: two PC sheets (3) are symmetrically arranged at the upper end and the lower end of the battery cell (5), and labels (1) are arranged at the lower ends of the PC sheets (3).

3. The built-in ultra thin lithium battery of claim 1, wherein: the PCM (8) outside evenly is provided with two first maraca glues (2), two second maraca glues (11), two plug cords (7) of second maraca glue (11) one end fixedly connected with.

4. The ultra-thin lithium battery pack as claimed in claim 3, wherein: the plug cord (7) comprises a yellow outer leaky line (702), a green outer leaky line (703), a black outer leaky line (704) and a red outer leaky line (705), and the right ends of the yellow outer leaky line (702), the green outer leaky line (703), the black outer leaky line (704) and the red outer leaky line (705) are connected in pairs and are respectively provided with a terminal plug (701).