High-conductivity new energy automobile lithium battery copper pin

By using lithium battery pins made of copper and combining them with wear-resistant, heat-dissipating, and insulating layers, the problems of poor conductivity and easy corrosion of traditional lithium battery pins are solved, achieving efficient power transmission and improved durability.

CN223978056UActive Publication Date: 2026-03-06NINGBO QIANCHENG PRECISION MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Traditional lithium battery pins have poor conductivity and are susceptible to corrosion from the external environment, resulting in reduced power loss and energy transfer efficiency.

Method used

The pin body and lead-out terminals are made of copper, and a wear-resistant layer, a heat dissipation layer and an insulating layer are set on their surface, which are respectively composed of polytetrafluoroethylene, graphene and silicone rubber to improve conductivity and corrosion resistance.

Benefits of technology

It improves power transmission efficiency, reduces power loss, extends pin lifespan, and enhances protection against external friction and corrosion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of lithium battery copper pins, and discloses a high-conductivity new energy automobile lithium battery copper pin which comprises a pin body, a first hole is formed in the upper side of the pin body, a second hole is formed in the left side of the pin body, and a round corner is arranged on the outer wall of the pin body. The outer wall of the right side of the pin body is fixedly connected with a leading-out end, a bending groove is formed in the outer wall of the leading-out end, a protective layer is arranged on the outer wall of the leading-out end, and the pin body and the leading-out end are made of red copper materials. According to the utility model, the pin body and the leading-out end are made of red copper materials, so that stable output of large current is ensured, electric energy loss is reduced, and the pin body and the leading-out end are prevented from being corroded, thereby achieving the effect of improving the conductivity and corrosion resistance of the pin.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery copper pin technology, and in particular to high conductivity new energy vehicle lithium battery copper pins. Background Technology

[0002] Lithium battery pins are metal components that extend from inside the lithium battery to connect with external circuits. In a lithium battery, pins are the key part for realizing the electrical connection between the battery and the external circuit. Through pins, the electrical energy stored inside the battery can be efficiently transferred to the electrical device. At the same time, pins can also introduce electrical energy from the external power source into the battery to realize the charging function. By using copper pins of new energy vehicle lithium batteries with high conductivity, the loss of electrical energy during transmission can be reduced and the energy utilization efficiency of the battery can be improved.

[0003] Traditional lithium battery pins are typically made of materials such as aluminum, which have low conductivity. When transmitting the same current, they generate greater resistance than copper, resulting in more electrical energy being lost as heat on the pins. Furthermore, they are prone to corrosion due to external environmental factors, thus reducing the overall energy transfer efficiency of the battery. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a copper pin for a high-conductivity new energy vehicle lithium battery, which aims to improve the problem of low conductivity and easy corrosion caused by the external environment when using traditional lithium battery pins.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-conductivity copper pin for a lithium battery in a new energy vehicle includes a pin body. The upper side of the pin body has a first hole, and the left side of the pin body has a second hole. The outer wall of the pin body has rounded corners, and the right outer wall of the pin body has a lead-out end fixedly connected to it. The outer wall of the lead-out end has a bending groove and a protective layer.

[0007] Preferably, both the pin body and the lead-out end are made of copper.

[0008] Preferably, the protective layer consists of a wear-resistant layer, a heat dissipation layer, and an insulating layer.

[0009] Preferably, the wear-resistant layer is made of polytetrafluoroethylene.

[0010] Preferably, the heat dissipation layer is made of graphene.

[0011] Preferably, the insulating layer is made of silicone rubber.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, both the pin body and the lead-out terminal are made of copper to ensure stable output of high current, reduce power loss, and prevent corrosion of the pin body and lead-out terminal, thereby improving the conductivity and corrosion resistance of the pin.

[0014] 2. In this utility model, the wear-resistant layer effectively resists damage to the protective shell from external friction, the heat dissipation layer can effectively disperse and conduct heat, and finally the insulating silicone rubber has good insulation performance, flexibility and aging resistance, thereby achieving the effect of extending the service life of the entire copper pin. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the copper pin of the high conductivity new energy vehicle lithium battery proposed in this utility model.

[0016] Figure 2 This is a partial structural diagram of the protective layer for the copper pins of a high-conductivity new energy vehicle lithium battery proposed in this utility model.

[0017] Figure 3 This is a partial structural diagram of the heat dissipation layer of the copper pin of a high-conductivity new energy vehicle lithium battery proposed in this utility model.

[0018] Figure 4 This is a partial structural diagram of the copper pin body of the high conductivity new energy vehicle lithium battery proposed in this utility model.

[0019] Legend:

[0020] 1. Pin body; 2. First hole; 3. Second hole; 4. Rounded corner; 5. Lead-out end; 6. Bending groove; 7. Protective layer; 8. Wear-resistant layer; 9. Heat dissipation layer; 10. Insulating layer. Detailed Implementation

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Reference Figures 1-3An embodiment of this utility model provides a high conductivity new energy vehicle lithium battery copper pin, including a pin body 1, a first hole 2 is opened in the upper side of the pin body 1, a second hole 3 is opened in the left side of the pin body 1, the outer wall of the pin body 1 is provided with rounded corners 4, a lead end 5 is fixedly connected to the right outer wall of the pin body 1, a bending groove 6 is opened in the outer wall of the lead end 5, and a protective layer 7 is provided in the outer wall of the lead end 5.

[0023] Specifically, the pin body 1 has a first hole 2, the pin body 1 is used for a second hole 3, the outer wall of the pin body 1 adopts a rounded corner design 4, the pin body 1 is used to fix the lead end 5, the lead end 5 has a bending groove 6, and a protective layer 7 is set on the outside of the bending groove 6 to protect the pin body 1 and the lead end 5.

[0024] Reference Figure 1 and Figure 4 Both the pin body 1 and the lead-out terminal 5 are made of copper.

[0025] Specifically, both the pin body 1 and the lead-out terminal 5 are made of copper. Copper has good conductivity and corrosion resistance, which can achieve more efficient transmission of battery power and improve the conductivity and corrosion resistance of the pin.

[0026] Reference Figure 2 and Figure 3 The protective layer 7 consists of a wear-resistant layer 8, a heat dissipation layer 9, and an insulating layer 10. The wear-resistant layer 8 is made of polytetrafluoroethylene, the heat dissipation layer 9 is made of graphene, and the insulating layer 10 is made of silicone rubber.

[0027] Specifically, polytetrafluoroethylene (PTFE) can effectively resist damage to the protective shell caused by external friction, graphene has anisotropic thermal conductivity, which can effectively disperse and conduct heat, and silicone rubber has good insulation, flexibility and aging resistance, thus extending the service life of the entire copper pin.

[0028] Working principle: When using this highly conductive copper pin for a new energy vehicle lithium battery, electrons are first conducted out through the pin body 1 and connected to the external circuit to form a complete current loop. The pin is then fixed to the lithium battery using the first hole 2 and the second hole 3. Both the pin body 1 and the lead-out terminal 5 are made of copper to ensure stable high-current output, reduce power loss, and prevent corrosion of the pin body 1 and the lead-out terminal 5. This improves the conductivity and corrosion resistance of the pin. The wear-resistant layer 8 effectively resists damage to the protective shell from external friction. Furthermore, the heat dissipation layer 9 effectively disperses and conducts heat. Finally, the insulating layer 10, made of silicone rubber, has good insulation, flexibility, and aging resistance, thus extending the service life of the entire copper pin.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-conductivity copper pin for new energy vehicle lithium battery, comprising a pin body (1), characterized in that: The first hole (2) is arranged in the upper side of the pin body (1), the second hole (3) is arranged in the left side of the pin body (1), the outer wall of the pin body (1) is provided with a round corner (4), the outer wall of the right side of the pin body (1) is fixedly connected with an outlet end (5), the outer wall of the outlet end (5) is provided with a bending groove (6), and the outer wall of the outlet end (5) is provided with a protective layer (7).

2. The high-conductivity new energy vehicle lithium battery copper pin according to claim 1, characterized in that: The pin body (1) and the outlet end (5) are made of red copper material.

3. The high-conductivity new energy vehicle lithium battery copper pin according to claim 2, characterized in that: The protective layer (7) is composed of a wear-resistant layer (8), a heat dissipation layer (9) and an insulating layer (10).

4. The high-conductivity new energy vehicle lithium battery copper pin according to claim 3, characterized in that: The wear-resistant layer (8) is made of polytetrafluoroethylene material.

5. The high-conductivity new energy vehicle lithium battery copper pin according to claim 3, characterized in that: The heat dissipation layer (9) is made of graphene material.

6. The high-conductivity new energy vehicle lithium battery copper pin according to claim 3, characterized in that: The insulating layer (10) is made of silicone rubber material.