CN205508955U - Polymer lithium ion battery structure of discharging - Google Patents

Abstract

The utility model discloses a polymer lithium-ion battery discharge structure, which comprises a polymer lithium-ion battery core set and a plug. The top of the polymer lithium-ion battery core set is provided with a positive pole lug and a negative pole lug. The plug A positive conductive terminal and a negative conductive terminal are provided inside, the positive ear is connected to the first wire through the first nickel sheet, the first wire is connected to the first positive conductive terminal, and the negative ear is connected to the first conductive wire through the second nickel sheet. The two wires are connected, and the second wire is connected to the negative conductive terminal. The utility model draws out the positive pole and the negative pole through wires and connects them with the plug, which eliminates the hidden dangers of open circuit and short circuit, improves the product qualification rate and discharge efficiency of the polymer lithium ion battery, and effectively prolongs the service life. The utility model is novel and reasonable in design, convenient in realization, wide in application range, strong in practicability, good in use effect and convenient in popularization.

Description

A polymer lithium-ion battery discharge structure

technical field

The utility model relates to a discharge structure, in particular to a polymer lithium ion battery discharge structure.

Background technique

Polymer lithium-ion soft pack batteries have been widely used in model toys in recent years because of their flexible shape and size, fast charging speed, excellent cycle characteristics, high operating voltage, high specific energy, large capacity, and environmental friendliness. All lithium-ion battery cell packs are composed of multiple small-capacity single cells connected in parallel or in series to form a large-capacity cell pack. The size of the existing polymer lithium-ion battery discharge structure is not easy to control, especially for smaller-sized polymer lithium-ion batteries, the distance between the positive electrode and the negative electrode is relatively short, there is a potential short circuit, and the distance between the positive electrode, the negative electrode and the wire The connection of the battery is unstable and prone to open circuit problems, resulting in low product qualification rate and discharge efficiency of existing polymer lithium-ion batteries.

Utility model content

The technical problem to be solved by the utility model is to provide a polymer lithium-ion battery discharge structure for the above-mentioned deficiencies in the prior art. The structure leads the positive and negative electrodes out through wires and connects them to the plug, which eliminates the hidden dangers of open circuit and short circuit, improves the product qualification rate and discharge efficiency of the polymer lithium ion battery, and effectively prolongs the service life.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a polymer lithium-ion battery discharge structure, which is characterized in that it includes a polymer lithium-ion battery cell set and a plug, and the polymer lithium-ion battery cell The top of the group is provided with a positive pole ear and a negative pole ear. The plug includes an insulating shell and a positive electrode conductive terminal and a negative pole conductive terminal arranged in the insulating shell. The positive pole ear is connected to the first wire through the first nickel sheet, The first lead is connected to the first positive conductive terminal, the negative tab is connected to the second lead through the second nickel sheet, and the second lead is connected to the negative conductive terminal.

The above discharge structure of a polymer lithium ion battery is characterized in that: the positive tab is ultrasonically welded to the upper part of the first nickel sheet, the first lead is soldered to the lower part of the first nickel sheet; It is ultrasonically welded with the upper part of the second nickel sheet, and the second wire is soldered and connected with the lower part of the second nickel sheet.

The discharge structure of the above-mentioned polymer lithium ion battery is characterized in that: the first nickel sheet is bent and wrapped around the first wire, the positive tab is bent and wrapped around the first nickel sheet, and the second nickel The sheet is bent and wrapped around the second wire, and the negative tab is bent and wrapped around the second nickel sheet.

The discharge structure of the above-mentioned polymer lithium-ion battery is characterized in that: the top of the positive tab, the top of the negative tab, and the top of the polymer lithium-ion battery cell group are all pasted on the top of the positive tab and the negative tab. There is insulating tape.

The discharge structure of the above-mentioned polymer lithium-ion battery is characterized in that: the polymer lithium-ion battery cell pack is covered with a PVC shell.

The above discharge structure of a polymer lithium ion battery is characterized in that the plug is an EC5 plug.

The discharge structure of the above-mentioned polymer lithium ion battery is characterized in that: the positive tab is an aluminum tab, and the negative tab is a nickel-plated copper tab.

Compared with the prior art, the utility model has the following advantages:

1. The utility model has the advantages of simple structure, novel and reasonable design, convenient realization, strong practicability, good use effect and easy popularization.

2. When the utility model is used to discharge the polymer lithium-ion battery, since the positive ear on the top of the polymer lithium-ion battery cell pack is connected to the positive conductive terminal in the plug through the first wire, the negative ear is connected to the plug through the second wire Therefore, plugging the plug directly into the object to be driven by electricity can realize safe, effective and rapid discharge of the polymer lithium-ion battery, which not only improves the work efficiency, but also enables the battery to be used during use. The process is convenient and has no potential safety hazard, and the service life of the battery is prolonged.

3. The utility model connects the positive electrode and the negative electrode to the plug through wires, which eliminates the hidden dangers of open circuit and short circuit, and improves the product qualification rate and discharge efficiency of the polymer lithium ion battery.

4. The utility model adopts the EC5 plug, which has a fool-proof effect and can significantly reduce the error rate of the product.

5. The utility model has a stable structure, is easy to operate, can significantly improve the working efficiency of the battery, and effectively prolong the service life of the battery.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the structure of the utility model without a PVC shell and without insulating adhesive tape.

Fig. 3 is a schematic diagram of the positional relationship among the polymer lithium-ion battery cell group, the positive tab, the negative tab and the insulating adhesive tape of the present invention.

Explanation of reference signs:

1—polymer lithium-ion battery cell pack; 2—positive ear; 3—negative ear;

4—insulating shell; 5—positive conductive terminal; 6—negative conductive terminal;

7—the first wire; 8—the second wire; 9—insulating tape.

10—PVC shell; 11—the first nickel sheet; 12—the second nickel sheet.

detailed description

Example 1

As shown in Figures 1 to 3, the polymer lithium ion battery discharge structure of the present invention includes a polymer lithium ion battery cell group 1 and a plug, and the top of the polymer lithium ion battery cell group 1 is provided with a positive pole ear 2 And the negative pole ear 3, the plug includes an insulating shell 4 and a positive conductive terminal 5 and a negative pole conductive terminal 6 arranged in the insulating shell 4, the positive pole ear 2 is connected with the first lead 7 through the first nickel sheet 11 connection, the first wire 7 is connected to the first positive conductive terminal 5 , the negative tab 3 is connected to the second wire 8 through the second nickel sheet 12 , and the second wire 8 is connected to the negative conductive terminal 6 .

As shown in Figure 3, the upper part of the positive pole ear 2 and the first nickel plate 11 is ultrasonically welded, and the first lead 7 is soldered and connected to the bottom of the first nickel plate 11; the negative pole ear 3 is connected to the second nickel plate 12 is ultrasonically welded, and the second wire 8 is connected to the lower part of the second nickel sheet 12 by soldering.

As shown in Figure 3, the first nickel sheet 11 is bent and wrapped around the first lead 7, the positive tab 2 is bent and wrapped around the first nickel piece 11, and the second nickel piece 12 is bent and wrapped around the Outside the second wire 8 , the negative tab 3 is bent and wrapped around the second nickel sheet 12 .

As shown in FIG. 1 , the top of the positive tab 2 , the top of the negative tab 3 , and the top of the polymer lithium-ion battery cell pack 1 are pasted with insulating tape 9 above the positive tab 2 and the negative tab 3 , It is used for insulation protection, and achieves the functions of insulation, beauty and dust prevention.

As shown in FIG. 1 , the polymer lithium-ion battery cell set 1 is covered with a PVC case 10 for protection.

In this embodiment, the plug is an EC5 plug.

In this embodiment, the positive tab 2 is an aluminum tab, and the negative tab 3 is a nickel-plated copper tab.

1 to 3, when the discharge structure of the polymer lithium-ion battery of the present invention is discharged, since the positive electrode ear 2 on the top of the polymer lithium-ion battery cell group 1 is connected to the positive electrode conductive terminal 5 in the plug through the first wire 7 , the negative electrode ear 3 is connected to the negative electrode conductive terminal 6 in the plug through the second wire 8, therefore, the plug is directly inserted into the object to be electrically driven, and the polymer lithium ion battery can be safely, effectively and quickly discharged. The working efficiency is not only improved, but also the battery can be used conveniently without potential safety hazard, and the service life of the battery is prolonged.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (7)

1. a polymer Li-ion battery discharging structure, it is characterised in that: include polymer lithium ion battery electric core group (1) and Plug, the top of described polymer lithium ion battery electric core group (1) is provided with anode ear (2) and negative electrode lug (3), described plug bag Include insulation shell (4) and the positive conductive terminal (5) being arranged in described insulation shell (4) and cathode conductive terminal (6), described Anode ear (2) is connected with the first wire (7) by the first nickel sheet (11), described first wire (7) and the first positive conductive terminal (5) connecting, described negative electrode lug (3) is connected with the second wire (8) by the second nickel sheet (12), described second wire (8) and negative pole Conducting terminal (6) connects.

A kind of polymer Li-ion battery discharging structure the most according to claim 1, it is characterised in that: described anode ear (2) with the top ultra-sonic welded of the first nickel sheet (11), described first wire (7) is connected with the bottom soldering of the first nickel sheet (11)； Described negative electrode lug (3) and the bottom of the top ultra-sonic welded of the second nickel sheet (12), described second wire (8) and the second nickel sheet (12) Soldering connects.

A kind of polymer Li-ion battery discharging structure the most according to claim 2, it is characterised in that: described first nickel sheet (11) bending is coated on the first wire (7) outward, and described anode ear (2) bending is coated on the first nickel sheet (11) outward, described second nickel Sheet (12) bending is coated on the second wire (8) outward, and described negative electrode lug (3) bending is coated on the second nickel sheet (12) outward.

A kind of polymer Li-ion battery discharging structure the most according to claim 1 and 2, it is characterised in that: described positive pole The top of ear (2), the top of negative electrode lug (3) and the top of polymer lithium ion battery electric core group (1) and be positioned at anode ear (2) All it is sticked insulation gummed paper (9) with the top of negative electrode lug (3).

A kind of polymer Li-ion battery discharging structure the most according to claim 1 and 2, it is characterised in that: described polymerization PVC shell (10) it is set with outside thing lithium ion battery cell group (1).

A kind of polymer Li-ion battery discharging structure the most according to claim 1 and 2, it is characterised in that: described plug For EC5 plug.

A kind of polymer Li-ion battery discharging structure the most according to claim 1 and 2, it is characterised in that: described positive pole Ear (2) is aluminium pole ears, and described negative electrode lug (3) is copper nickel plating lug.