Abstract:
A battery module includes a hermetically sealed battery cell assembly. The battery cell assembly includes a housing and an electrochemical cell disposed in the housing, wherein the housing includes a fill hole configured to receive electrolyte into the battery cell assembly. The battery cell assembly also includes a seal disposed over the fill hole and ultrasonically welded to an annular portion of the housing around the fill hole.
Abstract:
Es wird eine Füllvorrichtung zum Befüllen einer Zelle (9) eines Akkumulators mit Elektrolytflüssigkeit beschrieben, wobei die Vorrichtung einen Füllkopf (1) aufweist, der über eine Anschlussleitung (3) mit einem Elektrolytflüssigkeit-Reservoir (10) in Verbindung steht. Der Füllkopf (1) besitzt ein Füllrohr (4), welches zum Befüllen in oder oberhalb einer Einfüllöffnung (11) der Zelle (9) positionierbar ist. Das Füllrohr (4) weist ein Anschlussstück (5) auf, das entlang des Füllrohres (4) von einer abgesenkten Position (13) im Bereich des freien Endes (15) des Füllrohres (4) hin zu einer angehobenen Position (14) weg vom freien Ende (15) verstellbar und dabei die an der Umfangswandungsöffnung des Füllrohres (4) angeordneten Füllöffnungen freigibt bzw. verschliesst, so dass ein Heraustropfen von überschüssiger Elektrolytflüssigkeit aus der Füllvorrichtung, dem Füllkopf (1) oder dem Füllrohr (4) nach Beendigung des Befüllens der Zelle (9) verhindert ist.
Abstract:
In a battery configuration including a casing (14) having a bottom, side and top surfaces, the top surface having a plurality of cell openings (22) therein, an improved flowpath is provided for liquid electrolyte when the battery is tilted onto any of its side surfaces. The flowpath includes a cover chamber for each cell opening defined by a substantially rectangular peripheral wall surrounding a cell opening; a cylindrical wall (24) surrounding and substantially concentric with the cell opening and located within the substantially rectangular wall, the cylindrical wall interrupted by a relatively small circumferential gap (26), and a wall (34) extending between the cylindrical wall and the adjacent side of the peripheral wall, the wall tangential to the cylindrical wall and adjacent the gap. A porous polytetrafluoroethylene disc (42) seated in the battery cover vent openings prevents spillage even if the battery casing is inverted.
Abstract:
The present invention relates to a secondary battery provided with an electrode assembly, which is embedded in an angular can, wherein the electrolyte injection port of a base plate, which is mounted on the open top of the angular can, comprises an upper portion having a chamfer structure with the diameter of the inner surface decreasing in the bottom direction, and a lower portion having a non-chamfer structure, wherein the chamfer structure comprises an uneven form so as to increase the path for leaking the electrolyte from the inside to the outside of the secondary battery. The present invention provides the secondary battery in which, when a sealing member is press-fitted into the electrolyte injection port, the sealing member is modified according to the inner surface structure of the electrolyte injection port to perform sealing.
Abstract:
The present invention relates to safety methods and mechanisms for treating electrolyte solutions in batteries, specifically metal-air batteries. Systems and methods of the invention protect the battery, protect the battery operator and protect the environment from potential material hazards. This invention provides materials for arresting a potentially hazardous electrolyte solution by forming solid or gel porous polymer structures. The polymer porous structures consume or confine the electrolyte solution thus preventing its hazardous potential.
Abstract:
A sealed battery manufacturing method includes inserting a supply nozzle (120) into an opening (33) that is opened outwardly, the opening (33) being formed in a battery container (33); and introducing a detection gas (He) into the battery container in such a manner that injection of the detection gas from the supply nozzle (120) is started at a pressure smaller than a predetermined injection pressure, and then an injection pressure of the detection gas (He) is increased by stages until the injection pressure of the detection gas (He) reaches the predetermined injection pressure.