CN210403892U

CN210403892U - Lithium ion battery

Info

Publication number: CN210403892U
Application number: CN201921832766.0U
Authority: CN
Inventors: 吴华烨
Original assignee: Guangdong Shunyingsen Energy Co Ltd
Current assignee: Guangdong Shunyingsen Energy Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-04-24
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a lithium ion battery, including shell, electric core, sealed rubber ring, anodal pin and negative pole pin, the shell is for being equipped with open-top's cylindrical barrel, electric core is located inside the shell, sealed rubber ring is located the top of electric core in the shell, just sealed rubber ring is sealed the open-top of shell, the top of anodal pin is passed sealed rubber ring, the top of negative pole pin is passed sealed rubber ring, anodal pin is worn out sealed rubber ring part along with the parallel direction of sealed rubber ring top surface is buckled to form the anodal section of buckling, the negative pole pin is worn out sealed rubber ring part along with the parallel direction of sealed rubber ring top surface is buckled to form the negative pole section of buckling, anodal section of buckling with the negative pole section of buckling is parallel to each other. The technical scheme is used for solving the problems that the existing lithium ion battery pin has space occupation and potential safety hazard.

Description

Lithium ion battery

Technical Field

The utility model belongs to the technical field of secondary battery, concretely relates to lithium ion battery.

Background

The lithium ion battery is a secondary batteryA secondary battery (rechargeable battery) which operates by mainly relying on lithium ion movement between a positive electrode and a negative electrode. During charging and discharging, Li⁺Intercalation and deintercalation to and from two electrodes: upon charging, Li⁺The lithium ion battery is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.

The connection of current lithium ion battery lithium mainly provides external electricity through stretching out positive negative pole pin, and there is three problem in the pin stretches out: on one hand, the pins increase the height and the space occupation of the battery; on the other hand, when the pin falls off, the pin is easy to be damaged, and scrapping is caused; and finally, the pins extend out slightly, so that the pins are easy to collide and deform or touch other metals to cause short circuit and damage to the battery.

SUMMERY OF THE UTILITY MODEL

To the technical problem that exists, the utility model provides a lithium ion battery to there is the space to occupy and have the problem of potential safety hazard in solving current lithium ion battery pin, this lithium ion battery can effectively reduce the space of pin and occupy, improves the security that lithium ion battery used simultaneously.

The utility model discloses a lithium ion battery, which comprises a shell, an electric core, a sealing rubber ring, an anode pin and a cathode pin, wherein the shell is a cylindrical barrel body with a top opening, the electric core is positioned inside the shell, the sealing rubber ring is positioned at the top of the electric core in the shell, the sealing rubber ring seals the top opening of the shell, the side wall of the top part of the shell is inwards sunken to form an annular groove, the annular groove is embedded into the outer wall of the sealing rubber ring to fix the sealing rubber ring, the electric core comprises an anode plate, a diaphragm and a cathode plate, the anode plate, the diaphragm and the cathode are mutually wound to form the electric core, the bottom of the anode pin is electrically connected with the anode plate, the top of the anode pin passes through the sealing rubber ring, the bottom of the cathode pin is electrically connected with the cathode plate, the top of the cathode pin passes through the sealing rubber ring, the positive electrode pin penetrates out of the sealing rubber ring part and is bent along the direction parallel to the top surface of the sealing rubber ring to form a positive electrode bending section, the negative electrode pin penetrates out of the sealing rubber ring part and is bent along the direction parallel to the top surface of the sealing rubber ring to form a negative electrode bending section, and the positive electrode bending section and the negative electrode bending section are parallel to each other.

Further, the shell is a metal shell.

Further, the metal shell is an aluminum shell.

Further, the battery cell is of a cylindrical structure.

Furthermore, the positive electrode pin is in interference fit with the sealing rubber ring, and the negative electrode pin is in interference fit with the sealing rubber ring.

For traditional lithium ion battery, the utility model provides a lithium ion battery has following advantage:

1) the positive electrode pin and the negative electrode pin are fixed by bending, so that the space occupation can be effectively reduced, and the miniaturization trend of electronic products is met;

2) the positive pin and the negative pin are bent and fixed, so that the problem of pin damage during falling can be effectively solved, and the safety is better;

3) after the positive pin and the negative pin are bent and fixed, the positive pin and the negative pin are connected with the outside through welding leads, so that the connection mode is more flexible and the welding is more convenient;

4) after the positive pin and the negative pin are bent and fixed, the problem that the pins deform or touch other metals to cause short circuit is effectively avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a lithium ion battery;

fig. 2 is a cross-sectional view of a lithium ion battery.

Detailed Description

The utility model discloses a lithium ion battery, this lithium ion battery can effectively reduce the space of pin and occupy, improves the security that lithium ion battery used simultaneously.

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, only some embodiments, not all embodiments, of the present invention are described. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the utility model discloses a lithium ion battery, which comprises a housing 3, an electric core 2, a sealing rubber ring 1, a positive electrode pin 4 and a negative electrode pin 7, wherein the housing 3 is a cylindrical barrel with an open top, the electric core 2 is located inside the housing 3, the sealing rubber ring 1 is located on the top of the electric core 2 in the housing 3, the sealing rubber ring 1 seals the open top of the housing 3, the top side wall of the housing 3 is recessed inwards to form an annular groove 8, the annular groove 8 is embedded into the outer wall of the sealing rubber ring 1 to fix the sealing rubber ring 1, the electric core 2 comprises a positive electrode plate, a diaphragm and a negative electrode plate, the positive electrode plate, the diaphragm and the negative electrode are wound to form the electric core 2, the bottom of the positive electrode pin 4 is electrically connected with the positive electrode plate, the top of the positive electrode pin 4 passes through the sealing rubber ring 1, the bottom electricity of negative pole pin 7 is connected the negative pole piece, the top of negative pole pin 7 passes sealed rubber ring 1, anodal pin 4 is worn out sealed rubber ring 1 part along with the direction of sealed rubber ring 1 top surface parallel is buckled to form anodal bending segment 5, negative pole pin 7 is worn out sealed rubber ring 1 part along with the direction of sealed rubber ring 1 top surface parallel is buckled to form negative pole bending segment 6, anodal bending segment 5 with negative pole bending segment 6 is parallel to each other.

The housing 3 is a metal housing.

Preferably, the metal shell is an aluminum shell.

The battery core 2 is of a cylindrical structure.

The positive electrode pin 4 is in interference fit with the sealing rubber ring 1, and the negative electrode pin 7 is in interference fit with the sealing rubber ring 1.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A lithium ion battery is characterized by comprising a shell, an electric core, a sealing rubber ring, an anode pin and a cathode pin, wherein the shell is a cylindrical barrel body with an open top, the electric core is positioned inside the shell, the sealing rubber ring is positioned at the top of the electric core in the shell, the sealing rubber ring seals the open top of the shell, the side wall of the top of the shell is inwards recessed to form an annular groove, the annular groove is embedded into the outer wall of the sealing rubber ring to fix the sealing rubber ring, the electric core comprises an anode plate, a diaphragm and a cathode plate, the anode plate, the diaphragm and the cathode plate are wound to form the electric core, the bottom of the anode pin is electrically connected with the anode plate, the top of the anode pin penetrates through the sealing rubber ring, the bottom of the cathode pin is electrically connected with the cathode plate, and the top of the cathode pin penetrates through the sealing rubber ring, the positive electrode pin penetrates out of the sealing rubber ring part and is bent along the direction parallel to the top surface of the sealing rubber ring to form a positive electrode bending section, the negative electrode pin penetrates out of the sealing rubber ring part and is bent along the direction parallel to the top surface of the sealing rubber ring to form a negative electrode bending section, and the positive electrode bending section and the negative electrode bending section are parallel to each other.

2. The lithium ion battery of claim 1, wherein the housing is a metal housing.

3. The lithium ion battery of claim 2, wherein the metal casing is an aluminum casing.

4. The lithium ion battery of claim 1, wherein the cells are cylindrical in configuration.

5. The lithium ion battery of claim 1, wherein the positive electrode pin is in interference fit with the seal rubber ring, and the negative electrode pin is in interference fit with the seal rubber ring.