CN213752771U

CN213752771U - Novel winding type battery cell

Info

Publication number: CN213752771U
Application number: CN202022618344.2U
Authority: CN
Inventors: 吴晓东
Original assignee: Taizhou Sinlion Battery Tech Co ltd
Current assignee: Taizhou Sinlion Battery Tech Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-07-20
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses a novel around formula of book electricity core relates to electric core technical field, the utility model discloses an electricity core structure, positive pole structure, negative pole structure, fixed knot construct and packaging structure, electricity core structure include positive plate and negative pole piece, and positive plate and negative pole piece are coiling formula platelike structure, and positive pole structure includes positive conducting strip and just leading electrical pillar, and a plurality of just leading electrical pillar lower surfaces all with just leading electrical pillar upper surface welding, the positive conducting strip lower surface and the positive pole piece upper surface connection of affiliated. The utility model relates to a novel around formula of book electricity core sets up the fin inside electric core, increase area of contact, improves the radiating efficiency, and the insulating layer makes electric core installation internal electrode can not direct contact, causes electric core to damage and the insulating layer can strengthen electric core rigidity, reduces because external force causes the condition emergence that electric core shape changed, and the shape and the position of design piece design electrode piece in the in-process of installation prevent to drop the damage because of position movable electrode and insulating layer.

Description

Novel winding type battery cell

Technical Field

The utility model relates to an electricity core technical field, in particular to novel around formula of book electricity core.

Background

The battery is characterized in that a single electrochemical cell containing a positive electrode and a negative electrode is not generally used directly, the battery is different from a battery containing a protection circuit and a shell and can be used directly, and the quality of the cell directly determines the quality of a rechargeable battery.

The existing coiling type battery core has the following defects: battery electricity core is at the in-process of charge-discharge, a large amount of heats that can produce, and the heat can transmit the battery surface, and the battery is in high temperature state for a long time, can make the inner core of lithium cell take place to expand, and the inner space that nevertheless current battery case constitutes is fixed, and when the inner core taken place to expand, can make lithium battery case take place to burst, and current battery radiating effect is poor, for this reason, we propose a novel winding formula electricity core.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel around formula of book electricity core can effectively solve the poor problem of battery radiating effect among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel winding type electric core comprises an electric core structure, a positive electrode structure, a negative electrode structure, a fixed structure and a packaging structure, wherein the electric core structure comprises a positive plate and a negative plate, the positive plate and the negative plate are of a winding type plate-shaped structure, the positive electrode structure comprises a positive conducting plate and a positive conducting post, the lower surfaces of the positive conducting posts are welded with the upper surface of the positive conducting plate, the lower surface of the positive conducting post is connected with the upper surface of the positive plate, the negative electrode structure comprises a negative conducting plate and a negative conducting post, the upper surfaces of the negative conducting posts are welded with the lower surface of the negative conducting plate, the upper surface of the negative conducting post is connected with the lower surface of the negative plate, the fixed structure comprises a shaping block, the lower surface of the shaping block is connected with the upper surface of the negative conducting plate, the packaging structure comprises a positive plate and a negative plate, and the upper surface of the positive plate is provided with a plurality of first openings, the inner surfaces of the plurality of first openings are respectively welded with the outer surfaces of the plurality of positive conductive columns, the lower surface of the negative plate is provided with a plurality of second openings, the inner surfaces of the plurality of second openings are respectively welded with the outer surfaces of the plurality of positive conductive columns, the number of the positive conductive columns and the number of the negative conductive columns are two, and the positive conductive columns and the negative conductive columns are used for connecting the positive conductive sheets and the negative conductive sheets.

Preferably, the battery cell structure further comprises an isolation layer, an insulation layer and a heat sink, wherein the isolation layer is arranged between one side surface of the positive plate and one side surface of the negative plate, the lower surface of the insulation layer is welded with the upper surface of the negative conductive plate, and the lower surface of the heat sink is connected with the other side surface of the negative plate. The number of the radiating fins is seventy-six, and the radiating fins increase the radiating area and the radiating efficiency.

Preferably, the positive electrode structure further comprises a positive joint, the lower surface of the positive joint is welded with the upper surface of the positive conductive column, and the positive joint is used for being connected with external equipment.

Preferably, the negative pole structure still includes the negative joint, negative joint upper surface and the welding of negative conductive pillar lower surface, the effect of negative joint lets external equipment be connected with electric core, realizes the effect of discharging.

Preferably, the fixed knot constructs still includes the support column, the support column sets up between design piece upper surface and positive conducting strip lower surface, and the effect of design piece is fixed for position when installing two positive and negative pole pieces.

Preferably, packaging structure still includes the outer packaging shell, outer packaging shell upper surface and positive plate lower surface are connected, outer packaging shell lower surface and negative plate upper surface are connected, and outer packaging shell is for protecting electric core inner structure and hold electrolyte.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in, through setting up the fin, at the inside fin that sets up of electricity core, increase area of contact improves the radiating efficiency.

2. The utility model discloses in, through setting up the insulating layer, make electric core installation internal electrode can not direct contact, cause electric core to damage and the insulating layer can strengthen electric core rigidity, reduce because external force causes the condition emergence that electric core shape changed.

3. The utility model discloses in, through setting up the design piece, the shape and the position of design electrode slice at the in-process of installation prevent to drop the damage because of position movable electrode and insulating layer.

Drawings

Fig. 1 is a schematic view of an external overall structure of a novel wound electrical core of the present invention;

fig. 2 is a schematic view of an external overlooking structure of a novel winding type battery cell of the present invention;

FIG. 3 is a schematic view of the structure at A-A of FIG. 2 according to the present invention;

fig. 4 is a schematic view of an external front view structure of a novel wound electrical core of the present invention;

fig. 5 is a schematic structural view of the point B-B in fig. 4 according to the present invention.

In the figure: 100. a cell structure; 110. a positive plate; 120. a negative plate; 130. an isolation layer; 140. an insulating layer; 150. a heat sink; 200. a positive electrode structure; 210. a positive conducting strip; 220. a positive conductive post; 230. a positive joint; 300. a negative electrode structure; 310. a negative conductive plate; 320. a negative conductive post; 330. a negative terminal; 400. a fixed structure; 410. a shaping block; 420. a support pillar; 500. a packaging structure; 510. a positive plate; 520. a negative plate; 530. and (4) packaging the shell.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like 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 to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention relates to a novel wound electrical core, which comprises a core structure 100, a positive electrode structure 200, a negative electrode structure 300, a fixing structure 400 and a packaging structure 500, wherein the core structure 100 comprises a positive electrode sheet 110 and a negative electrode sheet 120, the positive electrode sheet 110 and the negative electrode sheet 120 are wound plate-like structures, the positive electrode structure 200 comprises a positive conductive sheet 210 and a positive conductive column 220, lower surfaces of the positive conductive columns 220 are welded to an upper surface of the positive conductive sheet 210, lower surfaces of the positive conductive sheet 210 are connected to an upper surface of the positive electrode sheet 110, the negative electrode structure 300 comprises a negative conductive sheet 310 and a negative conductive column 320, upper surfaces of the negative conductive columns 320 are welded to a lower surface of the negative conductive sheet 310, an upper surface of the negative conductive sheet 310 is connected to a lower surface of the negative electrode sheet 120, the fixing structure 400 comprises a shape-setting block 410, lower surfaces of the shape-setting block 410 are connected to an upper surface of the negative electrode sheet 310, the packaging structure 500 comprises a positive electrode plate 510 and a negative electrode plate 520, the upper surface of positive plate 510 is equipped with a plurality of first trompils, and a plurality of first trompils internal surface welds with a plurality of positive conductive columns 220 surface respectively, and the lower surface of negative plate 520 is equipped with a plurality of second trompils, and a plurality of second trompils internal surface welds with a plurality of positive conductive columns 220 surface respectively, and wherein positive conductive column 220 and the 320 numbers of negative conductive column are two, and their effect is two positive, negative conducting strips of connecting.

Referring to fig. 5, the battery cell structure 100 further includes an isolation layer 130, an insulation layer 140, and heat dissipation fins 150, where the isolation layer 130 is disposed between one side surface of the positive plate 110 and one side surface of the negative plate 120, a lower surface of the insulation layer 140 is welded to an upper surface of the negative conductive plate 310, and lower surfaces of the heat dissipation fins 150 are connected to the other side surface of the negative plate 120. The number of the radiating fins 150 is seventy-six, and the radiating fins 150 increase the radiating area and the radiating efficiency.

Referring to fig. 2-4, the positive electrode structure 200 further includes a positive contact 230, a lower surface of the positive contact 230 is soldered to an upper surface of the positive conductive pillar 220, and the positive contact 230 is used for connecting to an external device.

Referring to fig. 2-4, the negative electrode structure 300 further includes a negative connector 330, an upper surface of the negative connector 330 is welded to a lower surface of the negative conductive pillar 320, and the negative connector 330 is used for connecting an external device to the battery cell to achieve a discharging effect.

Referring to fig. 3, the fixing structure 400 further includes a supporting pillar 420, the supporting pillar 420 is disposed between the upper surface of the shaping block 410 and the lower surface of the positive conductive sheet 210, and the shaping block 410 is used for fixing the position when the positive and negative pole pieces are mounted.

Referring to fig. 1, the package structure 500 further includes an outer package case 530, an upper surface of the outer package case 530 is connected to a lower surface of the positive electrode plate 510, a lower surface of the outer package case 530 is connected to an upper surface of the negative electrode plate 520, and the outer package case 530 is for protecting an internal structure of the battery cell and containing an electrolyte.

The following is the working principle of the utility model:

please refer to fig. 1-5, the utility model relates to a novel around book formula electric core, positive plate 110 and negative plate 120 cooperate, discharge in electrolyte, lead electrical conduction with two positive and negative pole pieces are connected and lead electrical conduction, two articulate external equipment carries out the work of discharging, set up insulating layer 140 in the shell and make the pole piece position shape fixed in the installation to prevent pole piece direct contact, fin 150's effect is the increase area of contact, increases the radiating efficiency.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel around formula of book electricity core, includes electric core structure (100), positive pole structure (200), negative pole structure (300), fixed knot constructs (400) and packaging structure (500), its characterized in that: the battery cell structure (100) comprises a positive plate (110) and a negative plate (120), the positive plate (110) and the negative plate (120) are of a winding plate-shaped structure, the positive structure (200) comprises a positive conducting plate (210) and a positive conducting post (220), the lower surfaces of the positive conducting posts (220) are welded with the upper surface of the positive conducting plate (210), the lower surface of the positive conducting plate (210) is connected with the upper surface of the positive plate (110), the negative structure (300) comprises a negative conducting plate (310) and a negative conducting post (320), the upper surfaces of the negative conducting posts (320) are welded with the lower surface of the negative conducting plate (310), the upper surface of the negative conducting plate (310) is connected with the lower surface of the negative plate (120), the fixing structure (400) comprises a shaping block (410), the lower surface of the shaping block (410) is connected with the upper surface of the negative conducting plate (310), packaging structure (500) includes positive plate (510) and negative plate (520), positive plate (510) upper surface is equipped with a plurality of first trompils, and is a plurality of first trompil internal surface leads electrical pillar (220) surface weld with a plurality of just leading respectively, negative plate (520) lower surface is equipped with a plurality of second trompils, and is a plurality of second trompil internal surface leads electrical pillar (220) surface weld with a plurality of just leading respectively.

2. The novel wound electrical core according to claim 1, wherein: the battery cell structure (100) further comprises an isolation layer (130), an insulation layer (140) and a heat dissipation sheet (150), wherein the isolation layer (130) is arranged between one side surface of the positive plate (110) and one side surface of the negative plate (120), the lower surface of the insulation layer (140) is welded with the upper surface of the negative conducting sheet (310), and the lower surface of the heat dissipation sheet (150) is connected with the other side surface of the negative plate (120).

3. The novel wound electrical core according to claim 1, wherein: the positive electrode structure (200) further comprises a positive joint (230), and the lower surface of the positive joint (230) is welded with the upper surface of the positive conductive column (220).

4. The novel wound electrical core according to claim 1, wherein: the negative electrode structure (300) further comprises a negative joint (330), and the upper surface of the negative joint (330) is welded with the lower surface of the negative conductive column (320).

5. The novel wound electrical core according to claim 1, wherein: the fixing structure (400) further comprises a supporting column (420), and the supporting column (420) is arranged between the upper surface of the shaping block (410) and the lower surface of the positive conducting strip (210).

6. The novel wound electrical core according to claim 1, wherein: the packaging structure (500) further comprises an outer packaging shell (530), the upper surface of the outer packaging shell (530) is connected with the lower surface of the positive plate (510), and the lower surface of the outer packaging shell (530) is connected with the upper surface of the negative plate (520).