Electric coupling of a connection to a terminal

Abstract

A system for electric coupling of a flat connection to a current output terminal comprising a tubular conducting slug is provided in which the connection comprises a hole and the connection is fixed on a transversal section of the slug in such a manner as to cause the hole to communicate with the inside of the tube.

Description

[0001] This is a divisional of application Ser. No. 10 / 815,685 filed Apr. 2, 2004. The entire disclosure of the prior application, application Ser. No. 10 / 815,685 is considered part of the disclosure of the accompanying divisional application and is hereby incorporated by reference.BACKGROUND OF THE INVENTION [0002] The present invention relates to the electric coupling of an electrode connection to a current output terminal, and in particular a terminal of the “glass-metal bushing” type usually used in small-format electrochemical generators. The invention relates in particular to electrochemical generators intended for portable equipment, the capacity of which is generally less than 20 Ah, particularly but not exclusively for sealed lithium generators. The invention moreover extends to the method for producing this coupling. [0003] An electrochemical generator comprises an electrochemical bundle comprising an alternating sequence of positive and negative electrodes framing a separ...

AI Technical Summary

Benefits of technology

The present invention proposes an electrochemical generator with a new system for electrical coupling of a plane connection to a current output terminal. The new system eliminates the risk of closing the hole for introducing the electrolyte and reduces the size of the generator. The connection is fixed to the terminal using a weld and a hole is pierced using a tool introduced inside the terminal. The generator includes a tubular conducting slug with a central hole through which the electrodes are connected. The position of the connection is held using a clamp and the connection is welded to the slug using a mobile electrode. The connection is pierced using a tool introduced inside the slug. The invention also provides a method for manufacturing the electrochemical generator with the new system for electrical coupling. The technical effects of the invention include reducing the risk of short-circuits, avoiding obstruction of the internal channel of the slug, and ensuring reliable electrical coupling.

Problems solved by technology

In this embodiment, the positioning of the thin strip vis-à-vis the internal part of the terminal as well as holding it before its fixing proves awkward.

During this operation, there is a risk of damaging the fixing of the thin strip to the terminal, or even the thin strip itself.

The resultant risks are on the one hand the occurrence of short-circuits and on the other hand the closure of the lower part of the electrolyte filler hole.

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