CN206098583U - A polymer lithium battery high temperature pressurized forming machine - Google Patents

Abstract

The utility model discloses a polymer lithium cell high temperature pressurization becomes machine, include quick-witted case, install the anchor clamps in quick-witted incasement, anchor clamps include an elevating system and a plurality of layer board, and the layer board lower surface is provided with the hot plate that is used for heating electric core, is provided with the clip on the layer board four corners respectively, opens and presss from both sides the tool, and it meets with the clip to open and press from both sides the tool, is provided with the hook on the layer board, and guiding hole and chain pin have still been seted up respectively in the layer board four corners, and the guiding shaft passes the guiding hole and makes the layer board is range upon range of formula and assembles on the guiding shaft and lie in between activity clamp plate and the. The utility model solves the problem of poor contact between the electrode lug and the battery cell of the traditional pressurization formation machine, ensures that the pulling intervals of each layer are consistent by using the chain, and does not discharge the battery cell because of small intervals; in addition, the whole machine has compact structure, small occupied space of a factory building, energy conservation and convenient operation.

Description

A polymer lithium battery high temperature pressurized forming machine

technical field

The utility model relates to the technical field of lithium battery processing equipment, in particular to a polymer lithium battery high-temperature pressurized forming machine.

Background technique

The formation process is one of the most critical processes in the production of soft-packed lithium-ion batteries. The traditional formation process is carried out at room temperature without the interference of any external factors. The currently commonly used formation process is divided into three steps: cold and hot pressing, constant current charging of the battery cell, and fixture baking. The main problem is that the formation effect is not good, and the battery interface is not good, which affects the capacity and cycle performance of the product.

In the traditional formation process, a new chemical formation equipment has emerged as the times require. At present, the contact of the tabs of the battery cells is unstable, and the pressing blocks need to be replaced for different batteries. The belt is used due to the deformation of the belt, which leads to uneven opening between layers. The core is inconvenient, and the non-metallic pallet is easy to catch fire.

Utility model content

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide a polymer lithium battery high-temperature pressurized forming machine, which improves the heating efficiency to save energy and is easy to operate.

In order to achieve the above purpose, the utility model provides a polymer lithium battery high-temperature pressurized forming machine, including a chassis, a fixture installed in the chassis, a heating temperature control unit and an electric control box installed on the upper end of the chassis, the fixture It includes a lifting mechanism and a plurality of pallets installed on the lifting mechanism, the lifting mechanism includes a plurality of guide shafts, cylinders and pressure sensors, and the clamp also includes an upper fixing plate, a lower fixing plate, and an upper heat shield , a lower heat shield, a movable platen, the guide shaft is fixedly installed between the upper fixed plate and the lower fixed plate, the lower heat shield is fixed on the movable platen, and the supporting plate can move up and down Installed on the guide shaft, the air cylinder is installed on the lower fixed plate, the pressure sensor is installed on the upper end of the air cylinder and connected with the movable platen, it is characterized in that: The surface is provided with a heating plate for heating the electric core, and the four corners of the supporting plate are respectively provided with clips and opening fixtures. The opening fixture is connected with the clips. The four corners of the plate are respectively provided with guide holes and chain pins, and the guide shaft passes through the guide holes so that the supporting plate is assembled on the guide shaft in a stacked manner and is located between the movable pressing plate and the upper fixed plate. Chains are installed on the chain pins of a plurality of pallets.

The above-mentioned high-temperature pressurized forming machine for polymer lithium batteries is characterized in that battery cells are respectively installed in the clips, and the battery cells are located directly under the heating plate.

The above-mentioned high-temperature pressurized forming machine for lithium polymer batteries is characterized in that the clips include upper and lower clips connected to each other, and upper and lower copper plates are respectively arranged inside the upper and lower clips.

The above-mentioned high-temperature pressurized formation machine for polymer lithium batteries is characterized in that: both the upper copper plate and the lower copper plate are provided with textured structures.

The beneficial effects of the utility model are:

The polymer lithium battery high-temperature pressurized forming machine of the utility model solves the problem of poor contact between the tabs of the traditional pressurized forming machine and the battery core, and at the same time, it will not change the type due to different battery models; the use of chains ensures that each layer is opened. Consistent, it will not cause bad discharge cores due to small spacing; in addition, the whole machine has a compact structure, takes up less space in the factory building, improves the heating efficiency to save energy, and is easy to operate.

The conception, specific structure and technical effects of the present utility model will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the fixture of the present invention.

Fig. 2 is a structural schematic view of each pallet and its accessories of the fixture of the present invention.

Fig. 3 is a structural schematic diagram of the clip on the pallet of the present invention.

detailed description

As shown in Figures 1 and 2, a polymer lithium battery high-temperature pressurized forming machine includes a chassis, a fixture installed in the chassis, a heating temperature control unit, and an electric control box installed on the upper end of the chassis. The fixture includes a Lifting mechanism and a plurality of supporting plates 12 installed on the lifting mechanism, the lifting mechanism includes a plurality of guide shafts 6, cylinders 10 and pressure sensors 9, and the clamp also includes an upper fixing plate 2, a lower fixing plate 7, a An upper heat shield 1, a lower heat shield 8, a movable pressing plate 5, the guide shaft 6 is fixedly installed between the upper fixed plate 2 and the lower fixed plate 7, and the lower heat shield 8 is fixed on the movable On the pressure plate 5, the supporting plate 12 is mounted on the guide shaft 6 so as to move up and down, the cylinder 10 is mounted on the lower fixing plate 7, and the pressure sensor 9 is mounted on the cylinder 10 The upper end is fixedly connected with the movable platen 5, and it is characterized in that: the lower surface of the supporting plate 12 is provided with a heating plate 13 for heating the electric core 15, and the four corners of the supporting plate 12 are respectively provided with clips 16, clamps for opening and closing. Tool 17, the clamping fixture 17 is connected with the clip 16, the supporting plate 12 is provided with a hook 4, and the four corners of the supporting plate 12 are respectively provided with guide holes 14 and chain pins 11, and the guide shaft 6 passes through the guide hole 14 so that the pallet 12 is assembled on the guide shaft 6 in a stacked manner and is located between the movable platen 5 and the upper fixed plate 2, and the chain pins 11 of the stacked multiple pallets 12 are Install the chain 3.

In this embodiment, battery cells 15 are installed in the clips 16 respectively, and the battery cells 15 are located directly below the heating plate 13 . When the cylinder 10 drives the pneumatic pressure plate 5 to move upward, the heating plate 13 is in full contact with the battery cell 15, so the battery cell 15 can obtain heat faster, thereby reaching the temperature required for high-current charging and discharging, so that the high-current It becomes possible to charge the battery cell 15, thereby improving the heating efficiency, thus saving energy and enabling high temperature and efficient heating. At the same time, during the pressing process of the cylinder 10, the cylinder 10 drives the supporting plate 12 to move upwards and squeeze each other so that the thickness of the battery cell 15 becomes thinner, the appearance is smoother, and the hardness is increased to a certain extent.

As shown in FIG. 3 , in this embodiment, the clip 16 includes an upper clip 161 and a lower clip 164 connected to each other, and an upper copper plate 162 and a lower copper plate 163 are arranged inside the upper clip 161 and the lower clip 164 respectively. Both the upper copper plate 162 and the lower copper plate 163 are provided with a textured structure, which can ensure the clamping of the battery core and solve the problem of poor contact at the same time.

Chains 3 are installed on the chain pins 11 of multiple stacked supporting plates 12 of the utility model. The chains 3 are strong and reliable, and do not need to be replaced frequently. At the same time, it solves the problem that the traditional technology adopts belts to cause the upper layer to be pulled apart from a large distance, and the lower layer to be pulled apart from a small distance. , it is inconvenient to place the battery cell 15. Since the supporting plates 12 are connected by the chain 3, when the cylinder 10 drives the supporting plates 12 to move upwards, all the supporting plates 12 can be linked together.

In addition, when the cylinder 10 pulls the supporting plate 12, the hook 4 provided on the supporting plate 12 pulls up the clamping jig of the lower layer, opens the clamp 16, and when the cylinder 10 stretches out, the clamping jig is naturally loosened, and the clamp 16 closed. The operation is very convenient and the work efficiency is greatly improved.

The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims .

Claims (4)

1. a kind of poly-lithium battery high-temperature pressurizing is melted into machine, including cabinet, the fixture being installed in cabinet, heating temperature control unit With the electric cabinet for being installed in cabinet upper end, the fixture includes an elevating mechanism and the multiple supporting plates being installed on elevating mechanism (12), the elevating mechanism includes multiple axis of guides (6), cylinder (10) and pressure transducer (9), and the fixture is also included on one Fixed plate (2), a bottom plate (7), thermal insulation board (1), once thermal insulation board (8), a movable pressing board (5), the axis of guide on one (6) it is fixed between fixed plate (2) and bottom plate (7), the lower thermal insulation board (8) is fixed on movable pressing board (5), on, the supporting plate (12) is movable up and down to be installed on the axis of guide (6), the cylinder (10) be installed in it is described under In fixed plate (7), the pressure transducer (9) is installed in the cylinder (10) upper end and is fixed with the movable pressing board (5) and connected Connect, it is characterised in that：Supporting plate (12) lower surface is provided with for heating the heating plate (13) of battery core (15), the supporting plate (12) clip (16) is respectively arranged with corner, clamp tool (17) is opened, the clamp tool (17) of opening is connected with clip (16), described Hook (4) is provided with supporting plate (12), supporting plate (12) corner also offers pilot hole (14) and chain pin (11) respectively, The axis of guide (6) causes the supporting plate (12) to be assemblied on the axis of guide (6) and be located at work in stacked through pilot hole (14) Between dynamic pressure plate (5) and upper mounted plate (2), chain is installed on the chain pin (11) of stacked multiple supporting plates (12) (3)。

2. a kind of poly-lithium battery high-temperature pressurizing as claimed in claim 1 is melted into machine, it is characterised in that：The clip (16) Battery core (15) is inside installed respectively, and battery core (15) is immediately below heating plate (13).

3. a kind of poly-lithium battery high-temperature pressurizing as claimed in claim 1 is melted into machine, it is characterised in that：The clip (16) Including the upper folder (161), lower folder (164) that are connected with each other, the upper folder (161), lower folder are respectively provided with copper coin on the inside of (164) (162), lower copper coin (163).

4. a kind of poly-lithium battery high-temperature pressurizing as claimed in claim 3 is melted into machine, it is characterised in that：The upper copper coin (162), lower copper coin (163) is provided with texture structure.