CN212625726U

CN212625726U - Parallel formation device for polymer lithium ion batteries

Info

Publication number: CN212625726U
Application number: CN202021486068.2U
Authority: CN
Inventors: 李华锋; 张习林; 杨永恒
Original assignee: Dongguan Juhe New Energy Co ltd
Current assignee: Dongguan Juhe New Energy Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-02-26
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a polymer lithium ion battery connects in parallel and becomes device, including negative pole ear clip inslot, anodal ear clip inslot, upper cover, elasticity switch and connecting wire, the upper cover surface is provided with negative pole ear clip inslot and anodal ear clip inslot, negative pole ear clip inslot and anodal ear clip inslot are about the horizontal symmetry in upper cover middle part, the handle sets up the place ahead right side at the upper cover, the elasticity switch middle part is provided with the fixture block, and the fixture block card is in lug one side of upper cover lower surface, be fixed with anodal copper sheet and negative pole copper sheet between upper cover and the elasticity kerve, anodal copper sheet and negative pole copper sheet are connected with positive connection piece and negative connection piece through connecting wire respectively, upper cover left side lower fixed surface has negative connection piece and positive connection piece. The parallel formation device for the polymer lithium ion battery performs formation operation according to corresponding formation parameters, reduces the space required by an operation place, reduces the times of loading and unloading the cabinet, saves manpower, and improves the production efficiency.

Description

Parallel formation device for polymer lithium ion batteries

Technical Field

The utility model relates to a polymer lithium cell technical field specifically is a parallelly connected formation device of polymer lithium ion battery.

Background

In the production process of polymer lithium ion batteries, formation is an extremely important process. The formation refers to the process of first charging of the battery after liquid injection, and the main function of the formation is to form a compact SEI film on the surface of the negative electrode through first low-current charging.

The existing battery formation device can only form one battery at one time, a plurality of wires need to be connected when a plurality of batteries are formed simultaneously, the parallel connection formation of the batteries is realized, and the equipment structure is complex and the operation difficulty is increased due to the excessive wires, so that the production efficiency and the production quality are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a parallelly connected formation device of polymer lithium ion battery to solve the problem that proposes in the background art.

In order to achieve the purpose, the utility model provides a polymer lithium ion battery parallel formation device, which comprises a negative pole ear clamping groove, a positive pole ear clamping groove, an upper cover, a tension switch and a connecting wire, wherein the surface of the upper cover is provided with the negative pole ear clamping groove and the positive pole ear clamping groove, the negative pole ear clamping groove and the positive pole ear clamping groove are transversely symmetrical about the middle part of the upper cover, the negative pole ear clamping groove and the positive pole ear clamping groove are respectively provided with ten groups at equal intervals, the left side and the right side of the negative pole ear clamping groove and the positive pole ear clamping groove are both provided with an electric core spacing plate, the bottom of the upper cover is provided with a bottom cover through a fixing screw, the tension bottom groove is arranged between the upper cover and the bottom cover, the tension bottom groove corresponds to the negative pole ear clamping groove and the positive pole ear clamping groove of the upper cover, the tension springs are arranged at both sides of the tension bottom groove, the tension switch is arranged, the elastic switch is connected with a handle, the handle is arranged on the right side in front of the upper cover, a clamping block is arranged in the middle of the elastic switch and clamped on one side of a lug on the lower surface of the upper cover, an anode copper sheet and a cathode copper sheet are fixed between the upper cover and the elastic bottom groove, the anode copper sheet and the cathode copper sheet correspond to the anode lug clamping groove and the cathode lug clamping groove in position, the anode copper sheet and the cathode copper sheet are respectively connected with a positive connecting sheet and a negative connecting sheet through connecting wires, and a negative connecting sheet and a positive connecting sheet are fixed on the lower surface on the left side of the upper cover.

Preferably, the thickness of the cell spacing plate is set to be 5 mm.

Preferably, rubber pads are clamped on the back surfaces of the negative electrode lug clamping groove and the positive electrode lug clamping groove at the bottom of the elastic bottom groove.

Compared with the prior art, the beneficial effects of the utility model are that: the polymer lithium ion battery parallel formation device puts 10 battery cell positive lugs into corresponding positive pole clamping grooves and negative pole lugs into corresponding negative pole clamping grooves, pulls out a flexible pin shaft switch handle, the pin shaft pushes a positive copper block, a negative copper block and a rubber pad mechanism in the parallel formation device to move left and right, clamps the positive and negative lugs of the battery between the rubber pad and the copper block through a flexible spring and the left and right movement working mode of the rubber pad and the copper block, leads the positive and negative lugs of the battery to be closely contacted with the positive and negative copper blocks of the parallel formation device, then leads out the ends to be silk-printed with + and-positive and negative pole identification connecting copper sheets and the charging ends of external formation equipment, correspondingly clamps the positive and negative lugs, reduces the space required by an operation place by performing formation operation according to corresponding formation parameters, reduces the times of loading and unloading cabinets, saves manpower, improves the production efficiency, and leads the positive copper sheets and negative copper sheets to be respectively connected with a positive connecting sheet and a negative connecting sheet, the number of wires is reduced, the structure is simplified, and the operation is convenient.

Drawings

FIG. 1 is a schematic view of the front assembly structure of the present invention;

FIG. 2 is a schematic view of a reverse assembly structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic view of the structure of the tension switch of the present invention;

FIG. 5 is a schematic view of the front structure of the take-up mechanism of the present invention;

FIG. 6 is a schematic view of the reverse side of the take-up mechanism of the present invention;

fig. 7 is a schematic diagram of the structure of the positive and negative electrode copper blocks of the present invention.

In the figure: 1. the battery cell comprises a negative electrode lug clamping groove, 2 a positive electrode lug clamping groove, 3 a battery cell spacing plate, 4 an upper cover, 5 a handle, 6 a negative connecting sheet, 7 a positive connecting sheet, 8 a fixing screw, 9 a bottom cover, 10 a positive electrode copper sheet, 11 a negative electrode copper sheet, 12 an elastic spring, 13 an elastic bottom groove, 14 an elastic switch, 15 a clamping block, 16 a rubber pad, 17 a connecting wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a polymer lithium ion battery parallel formation device comprises a negative pole ear clamping groove 1, a positive pole ear clamping groove 2, a battery cell spacing plate 3, an upper cover 4, a handle 5, a negative connecting sheet 6, a positive connecting sheet 7, a fixing screw 8, a bottom cover 9, a positive pole copper sheet 10, a negative pole copper sheet 11, a tension spring 12, a tension bottom groove 13, a tension switch 14, a clamping block 15, a rubber pad 16 and a connecting lead 17, wherein the surface of the upper cover 4 is provided with the negative pole ear clamping groove 1 and the positive pole ear clamping groove 2, the negative pole ear clamping groove 1 and the positive pole ear clamping groove 2 are transversely symmetrical relative to the middle part of the upper cover 4, the negative pole ear clamping groove 1 and the positive pole ear clamping groove 2 are respectively provided with ten groups of equal distances, the battery cell spacing plate 3 is arranged on the left side and the right side of the negative pole ear clamping groove 1 and the positive pole ear clamping groove 2, the bottom cover 9 is arranged at the bottom of the upper cover 4 through the fixing, and the elastic bottom groove 13 corresponds to the negative pole lug clamping groove 1 and the positive pole lug clamping groove 2 of the upper cover 4, elastic springs 12 are arranged on two sides of the elastic bottom groove 13, an elastic switch 14 is arranged on the right side of the elastic bottom groove 13, a handle 5 is connected to the elastic switch 14, the handle 5 is arranged on the right side in front of the upper cover 4, a clamping block 15 is arranged in the middle of the elastic switch 14, the clamping block 15 is clamped on one side of a projection on the lower surface of the upper cover 4, a positive copper sheet 10 and a negative copper sheet 11 are fixed between the upper cover 4 and the elastic bottom groove 13, the positive copper sheet 10 and the negative copper sheet 11 correspond to the positive pole lug clamping groove 2 and the negative pole lug clamping groove 1, the positive copper sheet 10 and the negative copper sheet 11 are respectively connected with the positive connecting sheet 7 and the negative connecting sheet 6 through connecting wires 17, and the negative connecting sheet 6.

The thickness of the cell partition plate 3 is set to be 5mm, so that the batteries are prevented from being scratched mutually; rubber pads 16 are clamped on the back surfaces of the negative electrode lug clamping groove 1 and the positive electrode lug clamping groove 2 at the bottom of the elastic bottom groove 13, so that the anti-loosening effect can be achieved.

The working principle is as follows: the parallel formation device is used for fixedly placing 10 lithium ion batteries, when in operation, only the tab ends of the batteries are required to be downward, the positive and negative electrode ends of the tabs of the batteries are required to be placed into the negative electrode tab clamping groove 1 and the positive electrode tab clamping groove 2 which correspond to the clamp device, the handle 5 of the elastic switch 14 is pulled upwards to close the switch, the elastic switch 14 pushes the elastic bottom groove 13, thereby enabling the positive copper sheet 10 and the negative copper sheet 11 and the rubber pad 16 to move left and right, clamping the positive and negative lugs of the battery between the rubber pad and the copper block through the working modes of the elastic spring, the left and right movement of the rubber pad and the copper block, enabling the positive and negative lugs of the battery to be tightly contacted with the positive and negative copper blocks of the parallel formation device, clamping the positive and negative lugs of the battery, positive and negative copper sheet leads are led out from one end of the formation device, and positive and negative pole marks are printed on the leading-out end on the surface of the upper cover, so that the positive and negative poles are prevented from being reversely connected when a battery is loaded;

after the batteries are clamped, the formation charging step can be carried out by clamping the positive copper sheet 10 and the negative copper sheet 11 into a positive clamp and a negative clamp, the current during formation is set as the product of the charging current required by the pre-formation of each lithium ion battery and the number of the plurality of lithium ion batteries, the product is used as the charging output current of external charging equipment, and the plurality of lithium ion batteries are charged by the external formation charging equipment;

after charging is completed, the parallel connection forming fixture is only required to be put into a fixture cabinet, the handle 5 of the elastic switch 14 is pulled downwards, the rubber pad is pulled back to the original position under the action of the elastic spring 12, the elastic switch 14 pulls the positive copper sheet 10 and the negative copper sheet 11 to loosen the battery clamp, the 10 battery lugs can be simultaneously separated from the positive copper sheet 10 and the negative copper sheet 11 of the parallel connection device, and the formed battery can be taken out and placed in order.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a polymer lithium ion battery connects in parallel and becomes device, includes negative pole ear embedded groove (1), anodal ear embedded groove (2), upper cover (4), elasticity switch (14) and connecting wire (17), its characterized in that: the surface of the upper cover (4) is provided with a negative pole lug clamping groove (1) and a positive pole lug clamping groove (2), the negative pole lug clamping groove (1) and the positive pole lug clamping groove (2) are transversely symmetrical about the middle part of the upper cover (4), the negative pole lug clamping groove (1) and the positive pole lug clamping groove (2) are respectively provided with ten groups of clamping grooves at equal intervals, the left side and the right side of the negative pole lug clamping groove (1) and the positive pole lug clamping groove (2) are respectively provided with a cell spacer plate (3), the bottom of the upper cover (4) is provided with a bottom cover (9) through a fixing screw (8), a loose and tight bottom groove (13) is arranged between the upper cover (4) and the bottom cover (9), the loose and tight bottom groove (13) corresponds to the negative pole lug clamping groove (1) and the positive pole lug clamping groove (2) of the upper cover (4), two sides of the loose and tight bottom groove (13) are provided with a loose spring (12), the loose and a loose switch (14) is arranged on the right side, and the elastic switch (14) is connected with a handle (5), the handle (5) is arranged on the right side of the front of the upper cover (4), the middle of the elastic switch (14) is provided with a clamping block (15), the clamping block (15) is clamped on one side of a convex block on the lower surface of the upper cover (4), a positive copper sheet (10) and a negative copper sheet (11) are fixed between the upper cover (4) and the elastic bottom groove (13), the positive copper sheet (10) and the negative copper sheet (11) correspond to the positive lug clamping groove (2) and the negative lug clamping groove (1) in position, the positive copper sheet (10) and the negative copper sheet (11) are respectively connected with the positive connecting sheet (7) and the negative connecting sheet (6) through connecting wires (17), and the negative connecting sheet (6) and the positive connecting sheet (7) are fixed on the lower surface of the left side of the upper cover (.

2. The polymer lithium ion battery parallel formation device according to claim 1, wherein: the thickness of the cell partition plate (3) is set to be 5 mm.

3. The polymer lithium ion battery parallel formation device according to claim 1, wherein: rubber pads (16) are clamped on the back surfaces of the negative electrode lug clamping groove (1) and the positive electrode lug clamping groove (2) at the bottom of the elastic bottom groove (13).