CN205723736U

CN205723736U - Positive pole ear of lithium battery fixed structure

Info

Publication number: CN205723736U
Application number: CN201620622715.5U
Authority: CN
Inventors: 段才富; 冯勇; 孟文愿; 刘瑞喆; 吴辉
Original assignee: Hangzhou Ao Saisi Industrial Co Ltd
Current assignee: Hangzhou Ao Saisi Industrial Co Ltd
Priority date: 2016-06-17
Filing date: 2016-06-17
Publication date: 2016-11-23
Anticipated expiration: 2026-06-17

Abstract

This utility model relates to a kind of positive pole ear of lithium battery fixed structure, including lithium battery body, extends to the positive pole ear outside lithium battery body packaging bag mouth, negative lug, and the upper surface of positive pole ear is welded with nickel sheet；The back side of pad upper end lug part is provided with layer of silica gel, and in the rugosity along pad fold inward 180 degree, layer of silica gel and the lug being positioned at pad lower end by arranging bond.This utility model positive pole ear of lithium battery fixed structure is by positive pole ear surface soldered nickel sheet, by positive pole ear folding, silica gel laminating, soldering when facilitating assembling, positive pole ear is made effectively to be fixed and position, and smooth the most crooked, lug difficult drop-off in use；In addition still prevent the burr scratch at lug edge, stab the aluminum plastic film of battery body, cause leakage, short circuit equivalent damage from face.

Description

Positive pole ear of lithium battery fixed structure

Technical field

This utility model relates to a kind of lithium battery, more particularly, to the fixed structure of a kind of positive pole ear of lithium battery.

Background technology

Lug, is a kind of significant components of lithium ion polymer battery product, and battery is a point both positive and negative polarity, lug be exactly from The metallic conductor extracted by both positive and negative polarity in battery core, popular saying is the ear of battery positive and negative polarities, is that battery carries out charge and discharge Contact point during electricity.The positive pole of battery uses aluminum, and aluminium pole ears uses soldering, electric resistance welding during assembling, easily occurs The bad phenomenon such as welding instability, dry joint, rosin joint, existing lithium battery product to aluminum ear nickel-converting lug, but would generally turn nickel After lug, in use exist easily snap off, the defect of the poor reliability such as come off, thus cause the use of battery to be stranded Difficult.

Utility model content

The purpose of this utility model is to provide a kind of positive pole ear of lithium battery fixed structure, turns nickel lug by changing positive pole Structure arrange, overcome positive pole ear frangibility, the rapid wear defect such as come off.

For achieving the above object, the technical solution adopted in the utility model is: a kind of positive pole ear of lithium battery fixed structure, Including lithium battery body, extend to the positive pole ear outside lithium battery body packaging bag mouth, negative lug, the upper surface of positive pole ear It is welded with nickel sheet；The back side of pad upper end lug part is provided with layer of silica gel, and in the folding along pad fold inward 180 degree Stacked, layer of silica gel and the lug being positioned at pad lower end by arranging bond.

This utility model positive pole ear of lithium battery fixed structure is by positive pole ear surface soldered nickel sheet, by positive pole ear Fold, silica gel is fitted, soldering when facilitating assembling, makes positive pole ear effectively be fixed and position, and smooth the most crooked, Lug difficult drop-off in use；In addition still prevent the burr scratch at lug edge, stab the aluminum plastic film of battery body, from face Cause leakage, short circuit equivalent damage.

Accompanying drawing explanation

Fig. 1 is this utility model positive pole ear of lithium battery fixed structure schematic diagram.

Fig. 2 is positive pole ear schematic diagram.

Label in figure: 1-lithium battery body, 2-extend to the positive pole ear outside lithium battery body packaging bag mouth, 3-negative pole pole Ear, 21 nickel sheet, 22 pads, 23 layer of silica gel.

Detailed description of the invention

Being described principle of the present utility model and feature below in conjunction with accompanying drawing, example is served only for explaining this practicality Novel, it is not intended to limit scope of the present utility model.

The utility model discloses a kind of positive pole ear of lithium battery fixed structure, including lithium battery body 1, extend to lithium electricity Positive pole ear 2 outside the body packaging bag mouth of pond, negative lug 3, the upper surface of positive pole ear 2 is welded with nickel sheet 21；Pad 22 The back side of upper end lug part is provided with layer of silica gel 23, and in the rugosity along pad fold inward 180 degree, by arrange Layer of silica gel 23 and the lug being positioned at pad lower end bond.

In the surface soldered nickel sheet 21 of the positive pole ear 2 extended to outside lithium battery body packaging bag mouth, positive pole ear 2 is formed The two parts up and down being boundary with pad 22, the backside coating layer of silica gel 23 of upper end lug part, by pad 22 upper end Lug part is along pad 22 fold inward 180, and nickel sheet is in outside, and after folding, upper end lug part passes through layer of silica gel and weldering Contact lower end lug part bonding, it is thus possible to positive pole ear is fixed, the most crooked, do not fall off, in use, the edge of lug Will not scratch, stab the aluminum plastic film of battery body, cause leakage, short circuit equivalent damage from face.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality Within novel spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in guarantor of the present utility model Within the scope of protecting.

Claims

1. a positive pole ear of lithium battery fixed structure, including lithium battery body (1), extends to outside lithium battery body packaging bag mouth Positive pole ear (2), negative lug (3), the upper surface of positive pole ear (2) is welded with nickel sheet (21)；Pad (22) pole, upper end The back side of ear portions is provided with layer of silica gel (23), and in the rugosity along pad fold inward 180 degree, by the silica gel arranged Layer (23) and the lug being positioned at pad lower end bond.