CN210015921U

CN210015921U - Flexible lithium ion battery

Info

Publication number: CN210015921U
Application number: CN201921353224.5U
Authority: CN
Inventors: 梅新艺; 周胜学; 杨光; 刘博谦; 贺琛云; 赵一鸣
Original assignee: Changzhou New Energy Technology Co Ltd
Current assignee: Changzhou New Energy Technology Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-02-04
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a flexible lithium ion battery, including battery piece, shell and packaging film, the parcel has the shell in the battery piece, and is provided with the inner shell in the shell, and the right side limit of battery piece is provided with negative pole utmost point ear and anodal utmost point ear, the multiunit packaging film of having arranged in the center layer is neat, and the packaging film intussuseption is filled with electrolyte and electric core. This flexible lithium ion battery, the structure sets up rationally, the battery piece from interior to exterior mainly is provided with the center layer, three layer construction is altogether to inner shell and shell, the center layer is the electric core layer structure that comprises the packaging film of neatly arranging, the structure of inner shell as installation and fixed center layer, provide preliminary protective structure for the center layer, the shell is as the structure of installation and fixed inner shell, for inner shell and center layer provide outside protective structure, inside better protection, avoid the damage, neatly be provided with the multiunit crease simultaneously on the battery piece, both ends head is provided with the notch around the crease, more convenient bending is folding, it is not fragile, practical value is higher.

Description

Flexible lithium ion battery

Technical Field

The utility model relates to the technical field of batteries, specifically a flexible lithium ion battery.

Background

Along with the progress of science and technology, the miniaturization trend of various electronic products is increasingly obvious when electronic products are greatly abundant, especially in the fields of wearable equipment, medical equipment, precision instruments and meters, key components such as circuit boards, batteries and the like in the electronic products are provided with higher requirements, for example, along with the popularization of intelligent wearable equipment, more and more people select intelligent wearable equipment, but intelligent wearable equipment has structural defects, the wearable equipment can not install batteries in arc positions, the energy of the whole batteries of the intelligent wearable equipment is lower, the existing intelligent wearable equipment needs to be bent due to the fact that most of the intelligent wearable equipment are designed by fitting human bodies, but existing lithium ion secondary batteries are not bent repeatedly, and therefore the development of flexible electronic products, especially intelligent wearable equipment, is severely restricted due to the limitation of the batteries.

In order to solve the defects and deficiencies of the battery technology, the technology for improving the battery technology is urgently needed, the flexible lithium ion battery is reasonable in overall structure setting, a battery piece is mainly provided with a center layer from inside to outside, the inner shell and the outer shell are of three-layer structures, the center layer is of an electric core layer structure formed by orderly-arranged packaging films, the inner shell serves as a structure for mounting and fixing the center layer, a primary protection structure is provided for the center layer, the outer shell serves as a structure for mounting and fixing the inner shell, an external protection structure is provided for the inner shell and the center layer, the inside of better protection is better protected, damage is avoided, meanwhile, multiple groups of creases are neatly arranged on the battery piece, notches are formed in the front end and the rear end of each crease, bending and folding are more convenient, the creases are not prone to damage, the practical.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art's intelligent wearing equipment because the majority is the human design of laminating, need buckle, but current lithium ion secondary battery does not buckle repeatedly to because the limitation of battery has seriously restricted the development defect of flexible electronic product especially intelligent wearing equipment, provide a flexible lithium ion battery. A flexible lithium ion battery has overall structure and sets up rationally, the battery piece is from interior to exterior mainly is provided with the center layer, three layer construction is altogether to inner shell and shell, the center layer is the electric core layer structure that comprises the packaging film of neatly arranging, the structure of inner shell as installation and fixed center layer, provide preliminary protective structure for the center layer, the shell is as the structure of installation and fixed inner shell, provide outside protective structure for inner shell and center layer, inside better protection, avoid the damage, neatly be provided with the multiunit crease simultaneously on the battery piece, both ends head is provided with the notch around the crease, more convenient bending is folding, it is not fragile, characteristics such as practical value is higher.

In order to achieve the above object, the utility model provides a following technical scheme: a flexible lithium ion battery comprises a battery piece, an outer shell and a packaging film, wherein the outer shell wraps the battery piece, an inner shell is arranged in the outer shell, a central layer is arranged in the inner shell, a protective edge is arranged on the outer edge of the battery piece, and a negative electrode lug and a positive electrode lug are arranged on the right side edge of the battery piece;

multiunit packaging film has arranged neatly in the central zone, and is connected with anodal continuous filament and negative pole continuous filament between the adjacent packaging film, and the packaging film intussuseption is filled with electrolyte and electric core to electric core is including positive plate and negative pole piece, separates between positive plate and the negative pole piece simultaneously and has the barrier film.

Preferably, multiple groups of creases are orderly arranged on the battery piece from left to right, a group of notches are arranged on the front side and the rear side of each crease, and the openings on the inner sides of the notches are smaller than the openings on the outer sides of the notches.

Preferably, the battery piece is in a rectangular sheet body structure, the length of the battery piece is set to be 4.6-6.6cm, the width of the battery piece is set to be 3.6-4.6cm, and the thickness of the inner shell area on the battery piece is set to be 0.25-0.36 cm.

Preferably, the shell comprises a shell surface layer and a shell bottom layer, the shell surface layer is arranged on the upper surface of the battery piece, and the shell bottom layer is arranged on the lower surface of the battery piece.

Preferably, the inner shell comprises an inner shell surface layer and an inner shell bottom layer, the inner shell surface layer is sealed on the upper surface of the central layer, and the inner shell bottom layer is sealed on the lower surface of the central layer.

Preferably, the packaging film adopts the packaging film of cuboid structure, and all installs a set of positive plate and a set of negative pole piece in every group packaging film to two sets of anodal continuous filament between two sets of adjacent packaging films link together, and two sets of negative pole continuous filament between two sets of adjacent packaging films link together.

Preferably, six rows of packaging films are arranged in the central layer of the inner shell from front to back, sixteen rows of packaging films are arranged in the central layer from left to right, and each group of packaging films are positioned in one group of small squares.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this flexible lithium ion battery, overall structure sets up rationally, the battery piece is from interior to exterior mainly is provided with the center layer, three layer construction is altogether to inner shell and shell, the center layer is the electric core layer structure that comprises the packaging film of neatly arranging, the structure of inner shell as installation and fixed center layer, provide preliminary protective structure for the center layer, the shell is as the structure of installation and fixed inner shell, for inner shell and center layer provide outside protective structure, inside better protection, avoid the damage, neatly be provided with the multiunit crease simultaneously on the battery piece, both ends head is provided with the notch around the crease, more convenient bending is folding, it is not fragile, practical value is higher.

2. The battery piece inner structure of this equipment sets up to and packaging film inner structure sets up, central region shows the packaging film in the battery piece and presents array arrangement, neat in order, and all separate between every row and every row of packaging film, adjacent two simultaneously have the crease between the packaging film, convenient crooked folding, and all fill electrolyte in every group packaging film, and be provided with positive plate and negative pole piece, separate between positive plate and the negative pole piece and be provided with the barrier film, the structure sets up clearly rationally.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a left side view of the structure of the present invention;

FIG. 3 is a schematic view of the inner part of the structure of the present invention;

FIG. 4 is a schematic diagram showing the separation of the interlayer structure of the present invention;

fig. 5 is a schematic view of the internal structure of the packaging film of the present invention.

Reference numbers in the figures: 1. battery piece, 2, protective edge, 3, outer shell, 4, inner shell, 5, notch, 6, crease, 7, negative pole utmost point ear, 8, positive pole utmost point ear, 9, outer shell top layer, 10, inner shell top layer, 11, centre layer, 12, inner shell bottom layer, 13, outer shell bottom layer, 14, packaging film, 15, electrolyte, 16, positive plate, 17, barrier film, 18, negative plate, 19, positive connecting wire, 20, negative connecting wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a flexible lithium ion battery comprises a battery piece 1, a protective edge 2, an outer shell 3, an inner shell 4, notches 5, creases 6, a negative pole tab 7, a positive pole tab 8, an outer shell surface layer 9, an inner shell surface layer 10, a central layer 11, an inner shell bottom layer 12, an outer shell bottom layer 13, a packaging film 14, electrolyte 15, a positive pole piece 16, a separation film 17, a negative pole piece 18, a positive pole connecting wire 19 and a negative pole connecting wire 20, a plurality of groups of creases 6 are orderly arranged on the battery piece 1 from left to right, a group of notches 5 are arranged on the front side and the rear side of each crease 6, an inner side opening of each notch 5 is smaller than an outer side opening, the battery piece 1 is of a rectangular piece structure, the length of the battery piece 1 is set to be 4.6-6.6cm, the width of the battery piece 1 is set to be 3.6-4.6cm

0.25-0.36cm, the battery piece 1 is internally wrapped by an outer shell 3, the outer shell 3 comprises an outer shell surface layer 9 and an outer shell bottom layer 13, the outer shell surface layer 9 is arranged on the upper surface of the battery piece 1, the outer shell bottom layer 13 is arranged on the lower surface of the battery piece 1, the inner shell 3 is internally provided with an inner shell 4, the inner shell 4 comprises an inner shell surface layer 10 and an inner shell bottom layer 12, the inner shell surface layer 10 is sealed on the upper surface of a central layer 11, the inner shell bottom layer 12 is sealed on the lower surface of the central layer 11, the inner shell 4 is internally provided with a central layer 11, the outer edge of the battery piece 1 is provided with a protective edge 2, the right side edge of the battery piece 1 is provided with a negative pole lug 7 and a positive pole lug 8, a plurality of groups of packaging films 14 are regularly arranged in the central layer 11, six rows of packaging films 14 are arranged in the central layer 11 from front to back in the inner shell 4, sixteen rows of, packaging film 14 adopts the packaging film of cuboid structure, and all install a set of positive plate 16 and a set of negative pole piece 18 in every group packaging film 14, and be connected with anodal even filament 19 and negative pole even filament 20 between the adjacent packaging film 14, and two sets of anodal even filament 19 between adjacent two sets of packaging film 14 link together, two sets of negative pole even filament 20 between adjacent two sets of packaging film 14 link together, the intussuseption of packaging film 14 is filled with electrolyte 15 and electric core, and electric core is including positive plate 16 and negative pole piece 18, it has barrier film 17 to separate between positive plate 16 and the negative pole piece 18 simultaneously.

As shown in fig. 1-3, the overall structure of the device is shown to be set up, the battery piece 1 is mainly provided with a center layer 11 from inside to outside, three-layer structure is shared by an inner shell 4 and an outer shell 3, the center layer 11 is an electrical core layer structure composed of regularly arranged packaging films 14, the inner shell 4 is used as a structure for installing and fixing the center layer 11, a preliminary protection structure is provided for the center layer 11, the outer shell 3 is used as a structure for installing and fixing the inner shell 4, an external protection structure is provided for the inner shell 4 and the center layer 11, the inside of better protection is better, damage is avoided, meanwhile, multiple groups of creases 6 are regularly arranged on the battery piece 1, notches 5 are formed in the front end and the rear end of the creases 6, bending and folding are more convenient, damage is not.

As shown in fig. 4-5, the internal structure of the cell sheet 1 and the internal structure of the packaging films 14 of the device are shown, the central region in the cell sheet 1 shows that the packaging films 14 are arranged in an array manner, and are orderly, and each row and each column of packaging films 14 are separated from each other, and meanwhile, two adjacent columns of packaging films 14 are provided with folds 6, which facilitate bending and folding, and each group of packaging films 14 is filled with electrolyte 15, and is provided with a positive plate 16 and a negative plate 18, and a separation film 17 is arranged between the positive plate 16 and the negative plate 18, so that the structure is clearly and reasonably arranged.

The working principle is as follows: when the flexible lithium ion battery is used, the flexible lithium ion battery can be installed in a battery jar of intelligent wearable equipment, due to the flexibility of the flexible lithium ion battery, the flexible lithium ion battery occupies small use space and is very light, a plurality of groups of creases 6 are orderly arranged on a battery piece 1 from left to right, the flexible lithium ion battery is folded along the creases 6 when being used conveniently, is convenient to fold and store, is not easy to damage the battery piece 1, and is provided with notches 5 at the front end and the rear end of the creases 6, so that the flexible lithium ion battery is more easily folded, meanwhile, the edges of each edge of the battery piece 1 are provided with protective edges 2 for edge protection, a negative electrode tab 7 and a positive electrode tab 8 are connected to the right side of the battery piece 1, the flexible lithium ion battery is electrically connected with the intelligent wearable equipment through the negative electrode tab 7 and the positive electrode tab 8, so that the intelligent wearable equipment can use the power supply, the use is light and convenient and is not troublesome.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A flexible lithium ion battery comprises a battery piece (1), a shell (3) and a packaging film (14), and is characterized in that: an outer shell (3) is wrapped in the battery piece (1), an inner shell (4) is arranged in the outer shell (3), a central layer (11) is arranged in the inner shell (4), a protective edge (2) is arranged on the outer edge of the battery piece (1), and a negative pole lug (7) and a positive pole lug (8) are arranged on the right side edge of the battery piece (1);

multiunit packaging film (14) have arranged in order in central layer (11), and be connected with between adjacent packaging film (14) anodal continuous filament (19) and negative pole continuous filament (20), packing film (14) intussuseption is filled with electrolyte (15) and electric core to electric core is including positive plate (16) and negative pole piece (18), separates between positive plate (16) and negative pole piece (18) simultaneously and has barrier film (17).

2. The flexible lithium ion battery of claim 1, wherein: the battery piece (1) is orderly provided with a plurality of groups of creases (6) from left to right, a group of notches (5) are arranged on the front side and the rear side of the creases (6), and the inner side openings of the notches (5) are smaller than the outer side openings.

3. The flexible lithium ion battery of claim 1, wherein: the battery piece (1) adopts a rectangular piece body structure, the length of the battery piece (1) is set to be 4.6-6.6cm, the width of the battery piece (1) is set to be 3.6-4.6cm, and meanwhile, the thickness of the area of the inner shell (4) on the battery piece (1) is set to be 0.25-0.36 cm.

4. The flexible lithium ion battery of claim 1, wherein: the shell (3) comprises a shell surface layer (9) and a shell bottom layer (13), the shell surface layer (9) is arranged on the upper surface of the battery piece (1), and the shell bottom layer (13) is arranged on the lower surface of the battery piece (1).

5. The flexible lithium ion battery of claim 1, wherein: the inner shell (4) comprises an inner shell surface layer (10) and an inner shell bottom layer (12), the inner shell surface layer (10) is sealed on the upper surface of the central layer (11), and the inner shell bottom layer (12) is sealed on the lower surface of the central layer (11).

6. The flexible lithium ion battery of claim 1, wherein: the packaging film (14) adopts a packaging film with a cuboid structure, a group of positive plates (16) and a group of negative plates (18) are installed in each group of packaging film (14), two groups of positive connecting wires (19) between two adjacent groups of packaging films (14) are connected together, and two groups of negative connecting wires (20) between two adjacent groups of packaging films (14) are connected together.

7. The flexible lithium ion battery of claim 1, wherein: six rows of packaging films (14) are arranged in the central layer (11) in the inner shell (4) from front to back, sixteen rows of packaging films (14) are arranged in the central layer (11) from left to right, and each group of packaging films (14) are positioned in one group of small squares.