CN218849565U

CN218849565U - Laminate polymer battery and electronic equipment

Info

Publication number: CN218849565U
Application number: CN202223211779.0U
Authority: CN
Inventors: 彭启川; 胡本安; 安建; 李洋; 张登学; 于子龙; 陈杰
Original assignee: Huizhou Liwinon Energy Technology Co Ltd
Current assignee: Huizhou Liwinon Energy Technology Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-04-11
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a laminate polymer battery and electronic equipment, wherein, laminate polymer battery includes: encapsulation bag and naked electric core. The encapsulation bag has first chamber and the second of holding and holds the chamber, and first chamber and the second of holding holds the chamber and communicates each other, and naked electric core holding is in first holding the intracavity. The second holds the chamber and is located the first lateral part that holds the chamber along laminate polymer battery's width direction, and the both sides of encapsulation bag still have hem structure, and wherein, hold the folding chamber that sets up in the second of encapsulation bag with the hem structure folding of one side with the second and hold chamber department. Namely, the folding structure is arranged on the stacking surface of the packaging bag, which faces away from the second containing cavity in a folding mode. Therefore, the width of the soft package battery cannot be increased by the second accommodating cavity, so that the soft package battery has more electrolyte without increasing the size, and the soft package battery has longer service life.

Description

Laminate polymer battery and electronic equipment

Technical Field

The utility model relates to the technical field of batteries, in particular to laminate polymer battery and electronic equipment.

Background

Because the weight of the aluminum plastic film of the soft package battery is smaller, the soft package battery is more and more applied to the automobile and energy storage industries. At present, in the conventional process of the lithium ion battery cell, an aluminum plastic film notching is used for packaging a naked battery cell, and the size of a groove position is matched with that of the naked battery cell, so that the stock of electrolyte of each battery is limited. However, with the coming of the 5G era, the requirements on quick charging and service life of the battery cell are higher and higher. To meet this requirement, more cell electrolyte needs to be poured and reserved in the battery cell. However, in the related art, in order to make the pouch battery have more electrolyte, the size is increased accordingly, which is disadvantageous for the application of the pouch battery.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a laminate polymer battery, laminate polymer battery inside have the first chamber and the second that holds that communicates each other and hold the chamber, and naked electric core is located the first intracavity that holds, and the hem structure is folding to be set up in the second and holds chamber department, makes laminate polymer battery have more electrolyte when not increasing the size.

The utility model also provides an including above-mentioned electronic equipment.

According to the utility model discloses a laminate polymer battery of first aspect embodiment, include:

the packaging bag is provided with a first accommodating cavity and a second accommodating cavity, the first accommodating cavity is communicated with the second accommodating cavity, the second accommodating cavity is positioned on the side part of the first accommodating cavity along the width direction of the soft package battery, and two sides of the packaging bag are also provided with folding edge structures along the width direction of the soft package battery;

the edge folding structure positioned on the same side with the second accommodating cavity is arranged at the second accommodating cavity of the packaging bag in a folding way;

naked electric core, holding in the first intracavity that holds.

According to the utility model discloses laminate polymer battery has following beneficial effect at least:

have the first chamber and the second that holds and hold the chamber in the encapsulation bag, the first chamber and the second that holds hold the chamber and communicate each other, and naked electric core sets up in the first intracavity that holds, and the second holds the chamber and can store more electrolyte, and laminate polymer battery's hem structure is folding to be set up in the second and holds chamber department, promptly, hem structure is folding to be set up in laminate polymer battery's the second that deviates from and holds the chamber surface. Therefore, the second accommodating cavity does not increase the width of the pouch battery, so that the pouch battery has more electrolyte without increasing the size.

According to the utility model discloses a some embodiments, follow laminate polymer battery's width direction, the second holds the size in chamber and is 1mm to 1.5mm.

According to some embodiments of the utility model, follow laminate polymer battery's length direction, first size that holds the chamber equals the second holds the size in chamber.

According to some embodiments of the present invention, the packaging bag is formed by folding and packaging an aluminum-plastic film, the aluminum-plastic film includes a first portion and a second portion arranged in a folded state, the first portion is formed with a first receiving groove and a second receiving groove by stamping, the first receiving groove faces the second portion, the surface of the first portion defines the first receiving cavity, and the surface of the second portion defines the second receiving cavity.

According to some embodiments of the present invention, the depth of the first receiving groove is equal to the depth of the first receiving groove.

According to some embodiments of the invention, the packaging bag has two the second holds the chamber, two the second hold the chamber set up respectively in the first both sides that hold the chamber, two folding that the hem structure corresponds set up in two of packaging bag the second holds chamber department.

According to the utility model discloses an electronic equipment of second aspect embodiment includes: the pouch battery according to the above embodiment.

According to the utility model discloses electronic equipment has following beneficial effect at least:

adopt the laminate polymer battery of the first aspect embodiment, laminate polymer battery's encapsulation bag has in the first chamber and the second chamber that holds, and the first chamber and the second chamber that holds of holding communicate with each other, and naked electric core sets up in the first intracavity that holds, and the second holds the chamber and can store more electrolyte, and laminate polymer battery's hem structure turns over a set up in the second holds chamber department, promptly, hem structure 130 is folding to be set up in laminate polymer battery's the second that deviates from holds the chamber surface. Therefore, the second accommodating cavity does not increase the width of the pouch battery, so that the pouch battery has more electrolyte without increasing the size.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the following figures and examples, in which:

fig. 1 is a schematic structural diagram of a pouch battery according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of fig. 1.

Reference numerals are as follows:

a packaging bag 100, a first receiving chamber 110, a second receiving chamber 120, a folding structure 130, a first portion 140, a first receiving groove 141, a second receiving groove 142, a second portion 150;

the battery cell 200.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and the terms greater than, less than, more than, etc. are understood as excluding the term, and the terms greater than, less than, etc. are understood as including the term. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Fig. 1 is a schematic structural diagram of a pouch battery according to an embodiment of the first aspect of the present invention, and fig. 2 is a schematic sectional diagram of fig. 1, referring to fig. 1 and fig. 2, a pouch battery according to an embodiment of the first aspect includes: encapsulation bag 100 and naked electric core 200.

The packaging bag 100 has a first accommodating chamber 110 and a second accommodating chamber 120, and the first accommodating chamber 110 and the second accommodating chamber 120 are communicated with each other. Naked electric core 200 holding in first chamber 110 that holds, the second holds chamber 120 and can make laminate polymer battery store more electrolyte, and the second holds the lateral part that chamber 120 is located first chamber 110 that holds along laminate polymer battery's width direction, and the both sides of encapsulation bag 100 still have hem structure 130, and wherein, hold chamber 120 with the second and lie in the hem structure 130 folding the setting in encapsulation bag 100's second and hold chamber 120 department with the hem structure 130 of one side. That is, the folding structure 130 is arranged on the surface of the pouch battery facing away from the second accommodating cavity 120 in a folding manner. Therefore, the second accommodating cavity 120 does not increase the width of the pouch battery, so that the pouch battery has more electrolyte without increasing the size, and the pouch battery has a longer service life.

It should be noted that the edge folding structure 130 is formed by edge folding in the manufacturing process of the pouch battery, and the edge folding is a common step in the manufacturing process of the pouch battery, and is not described herein again.

In the pouch battery, the width of the hem structure 130 is usually 1mm to 1.5mm, based on this, on the above embodiment, along the width direction of the pouch battery, the size of the second accommodating cavity 120 is 1mm to 1.5mm, that is, the width of the second accommodating cavity 120 is approximate to the width of the hem structure 130, so that the second accommodating cavity 120 does not exceed the width of the hem structure 130 while having a larger volume, that is, the width of the second accommodating cavity 120 does not lead to the increase of the width of the pouch battery.

In some embodiments, along laminate polymer battery's length direction, the size that the second held chamber 120 equals first chamber 110 size that holds, namely, the length that the second held chamber 120 equals the length that first chamber 110 holds for the second holds chamber 120 when not influencing laminate polymer battery's length, possesses great volume, thereby improves laminate polymer battery's electrolyte's capacity, in order to promote laminate polymer battery's life.

Referring to fig. 2, in some embodiments, the packaging bag 100 is formed by folding and packaging an aluminum-plastic film, the aluminum-plastic film includes a first portion 140 and a second portion 150 folded in half, the first portion 140 is stamped to form a first receiving groove 141 and a second receiving groove 142, a surface of the first receiving groove 141 and the second portion 150 facing the first portion 140 defines a first receiving cavity 110, and a surface of the second receiving cavity 120 and the second portion 150 facing the first portion 140 defines a second receiving cavity 120. Therefore, in the manufacturing process of the pouch battery, the second receiving cavity 120 is formed by the same process as the first receiving cavity 110 (in the conventional technology, the first receiving cavity 110 is usually formed by punching a hole on an aluminum-plastic film), and only one punching is performed by one punching head, so that other processes are not required, the processing efficiency is improved, and the manufacturing cost is saved.

Referring to fig. 2, in some embodiments, the depth of the first receiving groove 141 is equal to the depth of the second receiving groove 142, so that the surface of the pouch battery is more flat, which is beneficial to the installation and use of the pouch battery.

In some embodiments, the packaging bag 100 has two second holding cavities 120, and two second holding cavities 120 are respectively arranged on two sides of the first holding cavity 110, and two second holding cavities 120 can further improve the electrolyte capacity of the pouch battery, so as to improve the service life of the pouch battery. And the two folding structures 130 are correspondingly arranged at the two second accommodating cavities 120 of the packaging bag 100, so that the width of the second accommodating cavity 120 does not affect the width of the soft package battery.

An electronic device, such as an electronic watch, a mobile phone, or the like, of an embodiment of the second aspect, includes: the laminate polymer battery of the embodiment of the first aspect. Laminate polymer battery's encapsulation bag 100 has first chamber 110 and the second of holding and holds chamber 120, and first chamber 110 and the second of holding holds chamber 120 intercommunication each other, and naked electric core 200 sets up in first chamber 110 that holds, and the second holds the electrolyte that chamber 120 is used for storing for laminate polymer battery can store more electrolyte, and hem structure 130 is folding to be set up in laminate polymer battery's the second that deviates from and holds chamber 120 surface. Therefore, the size of the soft package battery is basically unchanged while the electrolyte of the soft package battery is increased. So that the electronic equipment is small and has a long service life.

It should be noted that, since the pouch battery according to the embodiment of the first aspect is adopted in the present embodiment, the present embodiment has all the beneficial effects brought by the embodiment of the first aspect, and details are not described here again.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims

1. Laminate polymer battery, its characterized in that includes:

the folding structure positioned on the same side with the second accommodating cavity is arranged at the second accommodating cavity of the packaging bag in a folding mode;

naked electric core, holding in the first intracavity that holds.

2. The pouch battery according to claim 1, wherein the second receiving cavity has a size of 1mm to 1.5mm in a width direction of the pouch battery.

3. The pouch battery according to claim 1, wherein the first receiving cavity has a size equal to that of the second receiving cavity in a length direction of the pouch battery.

4. The pouch cell as defined in claim 1, wherein the pouch is formed by a folded package of an aluminum-plastic film, the aluminum-plastic film comprises a first portion and a second portion arranged in a folded manner, the first portion is stamped to form a first receiving groove and a second receiving groove, the first receiving groove and a surface of the second portion facing the first portion define the first receiving cavity, and the second receiving cavity and a surface of the second portion facing the first portion define the second receiving cavity.

5. The pouch battery according to claim 4, wherein the depth of the first receiving groove is equal to the depth of the first receiving groove.

6. The laminate battery pack according to claim 1, wherein the packaging bag has two second accommodating cavities, the two second accommodating cavities are respectively arranged at two sides of the first accommodating cavity, and the two corresponding folding structures are arranged at the two second accommodating cavities of the packaging bag.

7. Electronic device, characterized in that it comprises a pouch cell according to any of claims 1 to 6.