CN202395107U

CN202395107U - Lithium ion battery formation equipment

Info

Publication number: CN202395107U
Application number: CN2011205387510U
Authority: CN
Inventors: 朱常喜; 周定红
Original assignee: Huizhou Hengye Technology Co ltd
Current assignee: Huizhou Hengye Technology Co ltd
Priority date: 2011-12-20
Filing date: 2011-12-20
Publication date: 2012-08-22
Anticipated expiration: 2021-12-20

Abstract

The utility model relates to lithium ion battery formation equipment which comprises a formation clamp, a vacuum box and a formation power supply, wherein a battery core to be formed is placed in the formation clamp; a power supply anode accessing end and a power supply cathode accessing end are led out of the outer edge of the formation clamp; the vacuum box is provided with a power supply perforation hole; the power supply anode accessing end and the power supply cathode accessing end respectively penetrate through the power supply perforation hole of the vacuum box by leads and connected to the formation power supply; and the formation clamp is closed in the vacuum box. In the formation process of the formation equipment, the interior of the vacuum box is vacuumized, so that gas generated in the formation process is exhausted in time, thus the formation interface is very compact.

Description

A kind of lithium ion battery formation device

Technical field

The utility model belongs to lithium ion battery forming technology field, is specifically related to a kind of lithium ion battery formation device.

Background technology

The step that changes into of lithium ion battery is to make the important stage of battery, changes into many-sided qualities such as the capacity height that is related to battery, cycle life length, security performance.Change into the process of battery being carried out initial charge that is meant.

Changing into of existing lithium ion battery mainly is that the opening normal pressure changes into; Promptly under the unencapsulated situation in battery liquid-filling hole, carrying out battery changes into; Treat battery change into after in sealing, but the normal pressure opening changes into also and can bring some problems, the gas that under normal pressure, produces in the formation process can not in time be got rid of; Thereby it is poor to cause aluminum hull to change into the interface, and performance difference is big.

Simultaneously, the existing forming technology multidigit single-points of great majority change into, and it uses single-point to change into cabinet and changes into, and battery installs, takes off and monitoring work is all accomplished by the staff by hand, and it is big to change into the cabinet floor space, personnel's inefficiency.

The utility model content

Change into existing deficiency to existing above-mentioned lithium battery; The utility model provides a kind of lithium ion battery formation device; The utility model device is in changing into operation; Through with electric core with change into anchor clamps and be sealed in the vacuum tank, make the gas that produces in the formation process in time get rid of, improve the compactness that changes into the interface.

For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: a kind of lithium ion battery formation device; Comprise changing into anchor clamps, vacuum tank and changing into power supply that the battery battery core that need change into is positioned over and changes in the anchor clamps, the outer that changes into anchor clamps leads to positive source incoming end and power cathode incoming end; Said vacuum tank is provided with the power supply perforation; Said positive source incoming end and power cathode incoming end pass the power supply perforation that vacuum tank is provided with through lead respectively, and are connected to and change into power supply, and the said anchor clamps that change into are sealed in the vacuum tank.Adopt above design, make electric core with change into anchor clamps and be sealed in the vacuum tank, make the gas that produces in the formation process in time get rid of, improve the compactness that changes into the interface.

The said power supply that changes into adopts the dc constant voltage power supply.

Said vacuum tank box house vacuumizes, and pressure is 0.05Mpa.

This prior art has the following advantages and beneficial effect:

1, in formation process, vacuum chamber inside vacuumizes, and makes the gas that produces in the formation process in time get rid of, and to change into the interface very fine and close thereby make.

Description of drawings

Fig. 1 is magnetized into the structural representation of device for a kind of lithium-ion electric;

Fig. 2 is the structural representation that changes into anchor clamps.

Embodiment

Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail, but the execution mode of the utility model is not limited thereto.

A kind of lithium ion battery formation device comprises changing into anchor clamps 1, vacuum tank 2, changing into power supply 3 and lead 4.

As shown in Figure 1, the battery battery core 5 that need change into is positioned over and changes in the anchor clamps 1, changes into anchor clamps 1 and is positioned in the vacuum tank 2; Change into power supply 3 and be put in outside the vacuum tank 2, vacuum tank 2 is provided with the perforation (not shown), and lead 4 passes perforation and connects the inside and outside of vacuum tank 2; Lead 4 is positioned at inner implementation of vacuum tank and seals; The outside connection changes into power supply 3, and inner the connection changes into anchor clamps 1, so makes whole formation process under the environment of a sealed vacuum, carry out.

Like Fig. 1, shown in 2, the anchor clamps 1 that change in the utility model comprise fixture mount 11, intake chute 12, several stationary fixtures 13, a middle negative pole copper billet 14 and positive and negative electrode power supply contact 151,152.

As shown in Figure 2, changing into anchor clamps in the present embodiment has a square fixture mount 11, and intake chute 12 is positioned at fixture mount 11 belows, and 4 stationary fixtures 13 are equipped with at negative pole copper billet 14 two ends on the fixture mount 11, is respectively each one of rear and front end, two in left side; Middle negative pole copper billet 14 changes into anchor clamps 1 with this and is divided into two parts, and every part is put into several battery battery cores 5, and battery battery core 5 keeps flat, and rivet 51 ends of battery battery core 5 are towards negative pole copper billet 14.Stationary fixture 13 ends of rear and front end are connected with

silica gel piece

131, and 2 stationary fixtures 13 before and after moving make the rivet 51 of battery battery core 5 closely contact with negative

pole copper billet

14, and 2 stationary fixtures 13 in left side make battery battery core 5 firm, do not roll.

As shown in Figure 1, in the present embodiment, 8 battery battery cores are packed into to change in two parts of anchor clamps 1, with stationary fixture 13 firm battery battery cores 5; Battery battery core 5 is closely contacted with changing into anchor clamps 1, and lead 4 connections change into anchor clamps 1 and change into power supply 3, and vacuum tank 2 is done encapsulation process; It is 0.05Mpa that vacuum tank 2 inner pressure are set afterwards, connects and changes into power supply 3, adopts the dc constant voltage charging modes; So just can carry out parallel connection and change into,, change into this lithium ion battery formation device through data statistics to battery battery core 5; The former single-point of comparing changes into and opening normal pressure forming technology, and the battery formation efficiency promotes 50%, and occupation area of equipment saves 70%; Because this device adopts vacuum chamber inside to vacuumize pressure to 0.05Mpa; Make the gas that produces in the formation process in time get rid of; Change into very densification of interface thereby make; Change into and be provided with intake chute in the anchor clamps, thereby making things convenient for the electrolyte drippage time all can be pooled to can not adhere to electric wicking surface in the intake chute has promoted battery performance greatly.

The foregoing description is the utility model preferred implementation; But the execution mode of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection range of the utility model.

Claims

1. lithium ion battery formation device; It is characterized in that: comprise changing into anchor clamps, vacuum tank and changing into power supply that the battery battery core that need change into is positioned over and changes in the anchor clamps, the outer that changes into anchor clamps leads to positive source incoming end and power cathode incoming end; Said vacuum tank is provided with the power supply perforation; Said positive source incoming end and power cathode incoming end pass the power supply perforation that vacuum tank is provided with through lead respectively, and are connected to and change into power supply, and the said anchor clamps that change into are sealed in the vacuum tank.