Electrode leading structure and electricity storage electric element adopting thereof

Abstract

The invention discloses an electrode leading structure of a battery or a super capacitor, which comprises an end cover. The end cover is hermetically fixed at the opening of the electrode end of a battery or capacitor outer casing. A terminal is inserted in the middle of the end cover, and the top end of the terminal extends out of the end cover. The bottom of the terminal is fixedly provided with a stop edge which is used for preventing the terminal from falling, and the top is respectively provided with a terminal leading end and a hollow flanging structure which is arranged around the terminal leading end. An insulation and sealing sleeve is clamped between the terminal and the end cover, and is sleeved on the terminal for sealing the terminal. The invention also discloses an electricity storage electric element which adopts the electrode leading structure. The electrode leading structure adopts a split structure of the terminal and the end cover; one insulation and sealing sleeve is used for sealing and insulating when the terminal is assembled; the flanging structure is sealed and compressed after being flanged; the sealing structure is simple, and is convenient and rapid in installation; and the sealing part is arranged around the terminal, so that the sealing and insulation material is saved.

Description

technical field [0001] The invention relates to an electrode lead-out structure, in particular to a battery or supercapacitor electrode lead-out structure, and also relates to a power storage electrical component adopting the lead-out structure. Background technique [0002] A battery or a supercapacitor is an electrical component with the function of storing electricity. Its electrode lead-out structure is an important part used to connect the internal pole core of the battery or supercapacitor and the power supply equipment. It is necessary to ensure that the two electrodes of the battery or supercapacitor Insulation between them, and at the same time ensure a good sealing effect on the electrolyte inside the battery or supercapacitor. At present, the electrode lead-out structure of commonly used batteries or supercapacitors is as follows: figure 1 , 2 As shown, it includes an end cover 1 for sealing and fixing on the battery or supercapacitor casing, and the top end of ...

AI Technical Summary

Problems solved by technology

The electrode lead-out structure using the above structure has the following problems: the sealing structure is complex, especially the concave structure at the top end of the shell and the groove on the upper surface around the end cover require high machining accuracy, and the cost of manufacturing and assembly is high; The insulating sleeve and the sealing ring are set independently, and the assembly is complicated and cumbersome. Failure of any one will cause damage to the battery or supercapacitor; During the use of the capacitor, its peripheral parts are easily deformed by bumps, resulting in the leakage of the electrolyte inside the battery or supercapacitor or the short circuit of the positive and negative electrodes, resulting in damage to the battery or supercapacitor

In addition, the mechanical strength of the casing of the battery or supercapacitor is limited, and its sealing effect is poor, and the end cap is easy to loosen in the casing

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