CN210576208U

CN210576208U - Lithium-manganese dioxide is integrated device for battery lithium area shaping of punching

Info

Publication number: CN210576208U
Application number: CN201921759416.6U
Authority: CN
Inventors: 张涛; 刘虎; 王博; 李梦杰; 杨朝勇; 皮正杰
Original assignee: No213 Institute Of China North Industries Group Corp
Current assignee: BEIJING MECHANICAL AND ELECTRICAL ENGINEERING GENERAL DESIGN DEPARTMENT; NO.213 INSTITUTE OF CHINA NORTH INDUSTRIES Group Corp.
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-05-19
Anticipated expiration: 2029-10-18

Abstract

The utility model provides a lithium area for lithium-manganese dioxide battery integrated device for plastic that punches, including cylinder, gas pocket, cutting die, go up movable flat board and fixed flat board down. The cylinder drives the upper movable plate to move up and down and applies pressure between the upper flat plate and the lower flat plate. And a circular cutting die is arranged on the lower fixing flat plate and used for punching the lithium strip, and the punched blanking is blown down by pressure air. The utility model discloses can accomplish punching and the plastic process in lithium area in step, improve work efficiency.

Description

Lithium-manganese dioxide is integrated device for battery lithium area shaping of punching

Technical Field

The utility model belongs to the technical field of the battery is made, concretely relates to lithium area for lithium-manganese dioxide battery punches plastic and uses integrated device.

Background

Lithium-manganese batteries are collectively known as Lithium-manganese dioxide batteries (Li-MnO 2). In the battery, metal lithium is used as a positive electrode, and manganese dioxide is used as a negative electrode. The primary lithium-manganese battery is a non-charging battery and consists of a positive plate, a negative plate, electrolyte, an aluminum-plastic film and a diaphragm. The negative plate consists of a tab and a negative lithium strip. The tab is a metal sheet which is used for connection, conduction and sealing. The connection refers to the connection between the inside and the outside of the battery, and the connection between the tab glue and the aluminum plastic film; "electrically conductive" means that electricity is led out through tabs and a circuit is generated; the term "seal" refers to the seal between the strip and the metal strip and the seal between the strip and the aluminum plastic film.

In the primary lithium manganese battery, the negative pole piece is a metal lithium belt. The preparation of the negative electrode is to compound the tab and the lithium belt, then to punch a hole on the lithium belt, and finally to shape the compound part of the tab and the lithium belt. The metal lithium area is silver white metal lithium, and physical viscosity is great, in the past, punches through manual puncher, and the back of punching, the waste material often can bond on the blade, leads to operating personnel to wipe the blade with alcohol often in order to prevent to glue the sword, but the effect is not very good yet. In the preparation of the negative electrode, since the lithium ribbon is excessive in participation in the reaction and there is a possibility that a safety hazard may be caused in an overdischarge state of the battery after the lithium is excessive, the amount of the lithium ribbon is reduced by perforating the lithium ribbon.

Because salient points appear on the surface of the lithium belt after the tab and the lithium belt are compounded, in order to not influence the performance of the battery, after the punching process of the battery, the pressure shaping needs to be carried out on the compound part of the lithium belt and the negative electrode tab.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the lithium area and punched and glue the sword, punched the plastic shortcoming of inefficiency, for solving this problem, provided a lithium area for lithium-manganese dioxide battery and punched plastic integrated device.

The utility model adopts the technical proposal that:

a punching and shaping integrated device for a lithium belt for a lithium-manganese dioxide battery comprises a cylinder, a support body, an upper movable plate and a lower fixed plate, wherein the lower fixed plate is installed at the bottom end of the support body; the lower fixing plate is vertically provided with a circular cutting die, the height of the circular cutting die is 1mm-2mm higher than that of the upper surface of the lower fixing plate, and the through hole is coincided with the center of the circular cutting die.

After the lithium belt is positioned on the lower movable plate, the upper movable plate is driven by the cylinder to move downwards, so that the lithium belt is flatly pressed, and during the process, the cutting die cuts the lithium belt, the pressure air is opened, the cut waste is blown to the bottom, the waste is prevented from being bonded with the cutting die, and the next cutting is influenced.

The positioning block can move, and effective positioning of the lithium belt is achieved.

The cutting die can be designed into a shape according to the process requirements, and is generally circular.

The utility model has the advantages that:

the utility model relates to a rationally, simple structure, performance safe and reliable has realized the location plastic and has gone on when cutting and punching, has avoided in the past the lithium area to cut the sword problem of gluing in cutting to production efficiency has been improved.

Drawings

FIG. 1 is a schematic view of the shaping and punching structure of the present invention;

FIG. 2 is a schematic view of the upper and lower plates after they are tightly bonded together;

in the figure: 1-a cylinder; 2-a stent body; 3-an upper movable plate; 4-lower fixing plate; 5-positioning a block; 6-air holes; 7-cutting the die;

Detailed Description

The invention will be described in detail with reference to the following drawings and preferred embodiments:

example 1

As shown in fig. 1 and 2, an integrated device for punching and shaping a lithium ribbon for a lithium-manganese dioxide battery includes a device support body 2, a control cylinder 1, an upper movable plate 3, and a lower fixed plate 4. The cylinder 1 is used for controlling the lifting of the upper movable plate 3; the pressure of the compressed air is generally between 0.4 and 0.6MPa, and the upper movable plate 3 is driven by the output shaft of the cylinder 1 to move downwards rapidly.

A positioning block 5 is arranged on the lower fixing plate 4, and the positioning block 5 can be fixed through a sliding chute so as to be adjustable in position;

the lower fixing plate 4 is provided with a cutting die 7, which is generally circular, and the cutting die is a relatively common product in the die cutting industry and is generally used for punching the shape of a required die-cut product. When the cutting die is installed, the height of the cutting die is 1mm or more and 2mm or less than that of the cutting die. The plane of 7 installation back of cutting die is higher than 4 on the bottom plate about 1mm to 2mm to cut the lithium area, the cutting die bubble cotton of embedding in the cutting die, 7 bubble cotton of cutting die adopt natural rubber foaming to form, have elasticity sufficient, density height, the rebound rate is better, the long-lived characteristics of punching press.

Go up on fly leaf 3 and bottom plate 4, have through-hole 6, through-hole 6 and the coincidence of circular cutting die 7 center, carry out the lithium area after cylinder 1 moves down and cut, compressed air blows down lithium area waste material simultaneously to prevent that lithium area and blade from gluing the sword. In a specific implementation, the pressure of the air cylinder and the compressed air can be adjusted according to the pressure regulating valve to control the process quality.

The working procedure of cutting the lithium strip after flat pressing and shaping can be completed once, and the waste material of the lithium strip is blown down through compressed air, so that the problem of frequently wiping the cutting edge is avoided.

Claims

1. An integrated device for punching and shaping a lithium belt for a lithium-manganese dioxide battery comprises a cylinder (1), a bracket body (2), an upper movable plate (3) and a lower fixed plate (4); the device is characterized in that a lower fixing plate (4) is mounted at the bottom end of a support body (2), a cylinder (1) is mounted at the upper end of the support body (2), an upper movable plate (3) is mounted at the lower end of the cylinder (1), the cylinder (1) controls the upper movable plate (3) to lift, the upper movable plate (3) and the lower fixing plate (4) penetrate through a through hole (6), a positioning block (5) is mounted on the upper surface of the lower fixing plate (4), and the positioning block (5) is fixed through a sliding groove; the lower fixing plate (4) is vertically provided with a circular cutting die (7), the circular cutting die (7) is 1-2 mm higher than the upper surface of the lower fixing plate (4), and the center of the through hole (6) coincides with that of the circular cutting die (7).

2. The lithium-manganese dioxide battery lithium strip punching and shaping integrated device as claimed in claim 1, wherein the circular cutting die (7) is embedded with cutting die foam which is foamed by natural rubber.