CN215578774U

CN215578774U - Power lithium ion battery with cylindrical aluminum ring cap

Info

Publication number: CN215578774U
Application number: CN202122047816.8U
Authority: CN
Inventors: 徐亚峰; 徐源; 李国光
Original assignee: Haihong Tanghe New Energy Technology Co ltd
Current assignee: Haihong Tanghe New Energy Technology Co ltd
Priority date: 2021-08-28
Filing date: 2021-08-28
Publication date: 2022-01-18
Anticipated expiration: 2031-08-28

Abstract

The utility model discloses a power lithium ion battery with a cylindrical aluminum ring cover cap, which relates to the technical field of batteries and comprises a battery shell, wherein the upper part of the inner wall of the battery shell is fixedly connected with a positive plate seal plate, and the lower part of the inner ground of the battery shell is fixedly connected with a negative plate seal plate. According to the utility model, the gear-shaped conductive posts are arranged, the teeth with triangular sections can be arranged to ensure stable clamping, and the anode glue injection hole and the cathode glue injection hole can be used for clamping, so that the mounting difficulty can be reduced, and the purpose of improving the production efficiency can be achieved.

Description

Power lithium ion battery with cylindrical aluminum ring cap

Technical Field

The utility model relates to the technical field of batteries, in particular to a power lithium ion battery with a cylindrical aluminum ring cap.

Background

The lithium ion battery has the outstanding advantages of high energy density, low self-discharge, no memory effect and the like, is a main solution of mobile energy, and is widely applied to multiple fields of mobile phones, flat panels, electric vehicles, household energy storage and the like. The service environment of the lithium ion battery is relatively complex, so higher requirements are put on the performance of the lithium ion battery. The lithium ion battery is used as a green and environment-friendly new energy source, has the advantages of good reliability, high safety, small volume, light weight and the like, and is widely applied to the fields of digital products, electric automobiles, military products and the like at present. With the strong support of the country on new energy, the development of the lithium ion battery is very vigorous, but the requirements on the service life, the safety and the low cost of the lithium ion battery are higher and higher, and the lithium ion battery is developed towards the direction of high service life, high safety, high multiplying power and low cost at present.

At present, in order to ensure good conductivity of a lithium ion battery, metal caps with good conductivity are needed at the positive and negative electrodes of a power lithium battery, and metal aluminum is often used as a cap as a metal with superior conductivity and price, but the cap on the existing lithium ion battery is easy to loosen, once the cap falls off in use, the battery cannot continue to work normally, and the existing lithium ion cap is very troublesome in assembly and is inconvenient to improve production efficiency.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the defects of the prior art, the utility model provides a power lithium ion battery with a cylindrical aluminum ring cap, which solves the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the energy storage battery comprises a battery shell, wherein an anode sealing plate is fixedly connected to the upper part of the inner wall of the battery shell, a cathode sealing plate is fixedly connected to the lower part of the inner ground of the battery shell, a hollow cylinder is fixedly connected to the middle of the top of the cathode sealing plate, an energy storage roll film is wound on the side surface of the hollow cylinder, and the energy storage roll film comprises an anode carrier film, a middle insulation diaphragm and a cathode carrier film; the inner wall top threaded connection of battery housing has anodal block, fixedly connected with gear shape leads electrical pillar in the middle of the top of anodal block, the inner wall bottom threaded connection of battery housing has the negative pole block, anodal injecting glue hole has been seted up to the top circumference of anodal block, negative pole injecting glue hole has been seted up to the bottom circumference of negative pole block.

Optionally, positive pole block and negative pole block all make aluminium, the side that the gear shape led electrical pillar is provided with the tooth that the cross-section is triangle-shaped, positive pole injecting glue hole and negative pole injecting glue hole all have threely, and positive pole injecting glue hole and negative pole injecting glue hole diameter shape all are annular array and distribute together.

Optionally, the top of the hollow cylinder is fixedly connected with the middle of the bottom of the anode sealing plate, electrolyte is filled in the hollow cylinder, and holes for passing in and out of the electrolyte are formed in the side wall of the hollow cylinder.

Optionally, the diameters of the negative electrode cap and the positive electrode cap are the same, the inner walls of the top and the bottom of the battery shell are provided with thread grooves, and the side surfaces of the negative electrode cap and the positive electrode cap are provided with threads matched with the thread grooves.

Optionally, electrolyte layers are disposed between the positive electrode carrier membrane and the intermediate insulating membrane and between the intermediate insulating membrane and the negative electrode carrier membrane, and the electrolyte layers and the electrolyte inside the hollow cylinder are composed of ethylene carbonate, diethyl carbonate and propylene carbonate.

Optionally, the surface of the cathode carrier film is coated with lithium nickel cobalt aluminum oxide, and the surface of the anode carrier film is coated with graphite.

Three beneficial effects

The utility model provides a power lithium ion battery with a cylindrical aluminum ring cap, which has the following beneficial effects:

1. this power lithium ion battery with cylinder aluminium ring block leads electrical pillar through setting up the gear shape, when installing and taking positive electrode block, can use the instrument to press from both sides the side that the gear shape leads electrical pillar, sets up the tooth that the cross-section is triangle-shaped and can guarantee to press from both sides the dress and stabilize to anodal glue injection hole and negative pole glue injection hole homoenergetic are used for pressing from both sides the dress and use, can reduce the installation degree of difficulty, reach the purpose that improves production efficiency.

2. This power lithium ion battery with cylinder aluminium ring block, through setting up anodal glue-injection hole and negative pole glue-injection hole, convenience not only can be more in the installation, and can pour into the conducting resin in the inside in anodal glue-injection hole and negative pole glue-injection hole after the installation, it is more firm to make to be connected between anodal block and anodal shrouding and negative pole shrouding and the negative pole block, and anodal block and negative pole block are the screw thread installation, more can reach the purpose that drops in preventing using.

Drawings

FIG. 1 is a schematic top perspective view of the present invention;

FIG. 2 is a schematic bottom perspective view of the present invention;

FIG. 3 is a schematic cross-sectional front view of the present invention;

FIG. 4 is a schematic top cross-sectional view of the present invention;

FIG. 5 is a schematic cross-sectional view of an energy storage roll film according to the present invention.

In the figure: 1. a battery case; 2. a positive electrode cap; 3. a gear-shaped conductive post; 4. injecting glue holes into the positive electrode; 5. a negative electrode cap; 6. injecting glue holes into the negative electrode; 7. an energy storage roll film; 701. a positive electrode support film; 702. an intermediate insulating diaphragm; 703. a negative electrode carrier film; 704. an electrolyte layer; 8. a hollow cylinder; 9. a negative plate; 10. and (4) a positive electrode closing plate.

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 of the embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution: a power lithium ion battery with a cylindrical aluminum ring cap comprises a battery shell 1, wherein an anode sealing plate 10 is fixedly connected to the upper portion of the inner wall of the battery shell 1, a cathode sealing plate 9 is fixedly connected to the lower portion of the inner ground of the battery shell 1, a hollow cylinder 8 is fixedly connected to the middle of the top of the cathode sealing plate 9, an energy storage roll film 7 is wound on the side face of the hollow cylinder 8, the top of the hollow cylinder 8 is fixedly connected to the middle of the bottom of the anode sealing plate 10, electrolyte is filled in the hollow cylinder 8, holes for feeding and discharging the electrolyte are formed in the side wall of the hollow cylinder 8, the energy storage roll film 7 comprises an anode carrier film 701, a middle insulating diaphragm 702 and a cathode carrier film 703, electrolyte layers 704 are arranged between the anode carrier film 701 and the middle insulating diaphragm 702 and between the middle insulating diaphragm 702 and the cathode carrier film 703, and the electrolyte layers 704 and the electrolyte in the hollow cylinder 8 are respectively ethylene carbonate, diethyl carbonate, The surface of the anode carrier film 701 is coated with lithium nickel cobalt aluminum oxide, and the surface of the cathode carrier film 703 is coated with graphite; the top of the inner wall of the battery shell 1 is in threaded connection with an anode cap 2, the middle of the top of the anode cap 2 is fixedly connected with a gear-shaped conductive post 3, the bottom of the inner wall of the battery shell 1 is in threaded connection with a cathode cap 5, the top circumference of the anode cap 2 is provided with an anode glue injection hole 4, the bottom circumference of the cathode cap 5 is provided with a cathode glue injection hole 6, the anode cap 2 and the cathode cap 5 are both made of aluminum, the side surface of the gear-shaped conductive post 3 is provided with teeth with triangular sections, and the number of the anode glue injection holes 4 and the number of the cathode glue injection holes 6 are three, and the diameters of the positive glue injection hole 4 and the negative glue injection hole 6 are distributed in an annular array, the diameters of the negative electrode cap 5 and the positive electrode cap 2 are the same, thread grooves are formed in the inner walls of the top and the bottom of the battery shell 1, and threads matched with the thread grooves are formed in the side surfaces of the negative electrode cap 5 and the positive electrode cap 2.

During the use, use the instrument to press from both sides the gear-type on the positive pole block 2 and lead electrical pillar 3 or anodal glue injection hole 4 in the installation, screw up the positive pole block 2 at the top of battery case 1 through rotating positive pole block 2 after the screw thread alignment of positive pole block 2 and battery case 1 top, then paste between positive pole block 2 and the positive pole shrouding 10 through pouring into the conducting resin into the inside in anodal glue injection hole 4, prevent that anodal block 2 from taking place to drop when using, then use the instrument to press from both sides negative pole block 5 through negative pole glue injection hole 6, paste firmly between negative pole block 5 and shrouding negative pole 9 with same mode, prevent that negative pole block 5 from taking place to drop when using.

In conclusion, this device is through setting up gear shape and leading electrical pillar 3, when installing and taking positive block 2, can use the side that the instrument presss from both sides gear shape and leads electrical pillar 3, it can guarantee to press from both sides the dress stably to set up the tooth that the cross-section is triangle-shaped, and positive glue injection hole 4 and negative pole glue injection hole 6 all can be used for pressing from both sides the dress and use, can reduce the installation degree of difficulty, reach the purpose that improves production efficiency, through setting up positive glue injection hole 4 and negative pole glue injection hole 6, not only can be more convenient in the installation, and can pour into conductive glue in the inside of positive glue injection hole 4 and negative pole glue injection hole 6 after the installation, it is more firm to make positive block 2 and positive shrouding 10 and negative pole shrouding 9 and negative pole block 5 between be connected, and positive block 2 and negative pole block 5 are the screw thread installation, more can reach the purpose that prevents to drop in the use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a power lithium ion battery with cylinder aluminum ring block, includes battery case (1), its characterized in that: the energy storage coil is characterized in that an anode sealing plate (10) is fixedly connected to the upper part of the inner wall of the battery shell (1), a cathode sealing plate (9) is fixedly connected to the lower inwards portion of the battery shell (1), a hollow cylinder (8) is fixedly connected to the middle of the top of the cathode sealing plate (9), an energy storage coil film (7) is wound on the side face of the hollow cylinder (8), and the energy storage coil film (7) comprises an anode carrier film (701), a middle insulation diaphragm (702) and a cathode carrier film (703); the inner wall top threaded connection of battery case (1) has anodal block (2), fixedly connected with gear shape leads electrical pillar (3) in the middle of the top of anodal block (2), the inner wall bottom threaded connection of battery case (1) has negative pole block (5), anodal notes gluey hole (4) have been seted up to the top circumference of anodal block (2), negative pole notes gluey hole (6) have been seted up to the bottom circumference of negative pole block (5).

2. The power lithium ion battery with a cylindrical aluminum ring cap of claim 1, wherein: anodal block (2) and negative pole block (5) all make aluminium, the side that the gear shape led electrical pillar (3) is provided with the tooth that the cross-section is triangle-shaped, anodal glue injection hole (4) and negative pole glue injection hole (6) all have threely, and anodal glue injection hole (4) and negative pole glue injection hole (6) diameter shape all are annular array and distribute.

3. The power lithium ion battery with a cylindrical aluminum ring cap of claim 1, wherein: the top of the hollow cylinder (8) is fixedly connected with the middle of the bottom of the anode sealing plate (10), electrolyte is filled in the hollow cylinder (8), and holes for passing in and out the electrolyte are formed in the side wall of the hollow cylinder (8).

4. The power lithium ion battery with a cylindrical aluminum ring cap of claim 1, wherein: the diameter of negative pole block (5) is the same with anodal block (2), the top and the bottom inner wall of battery case (1) all are provided with the thread groove, the side of negative pole block (5) and anodal block (2) all is provided with the screw thread with thread groove looks adaptation.

5. The power lithium ion battery with a cylindrical aluminum ring cap of claim 1, wherein: electrolyte layers (704) are arranged between the positive electrode carrier membrane (701) and the middle insulating membrane (702) and between the middle insulating membrane (702) and the negative electrode carrier membrane (703), and electrolyte in the electrolyte layers (704) and the hollow cylinder (8) is composed of ethylene carbonate, diethyl carbonate and propylene carbonate.

6. The power lithium ion battery with a cylindrical aluminum ring cap of claim 1, wherein: the surface of the anode carrier film (701) is coated with lithium nickel cobalt aluminum oxide, and the surface of the cathode carrier film (703) is coated with graphite.