摘要:
The disclosure relates to a method and an apparatus for electrically contacting at least one electrode (22, 23) of one or more electrochemical cells. The apparatus comprise a nonconductive electrode pass-through element (4) with at least one electrode pass-through opening (41) and at least one contact element (6) at least partially made from a conductive material and releasably mountable to the electrode pass-through element (4) with a defined pressure.
摘要:
The present disclosure relates to an electrolyte for an electrochemical cell and an electrochemical cell comprising such an electrolyte. The electrolyte comprises at least one conductive salt comprising lithium ions, at least one solvent and at least one wetting agent. The electrochemical cell comprises at least one anode, at least one cathode and at least one separator arranged between the at least one anode and the at least one cathode. The electrolyte may be filled between the at least one anode and the at least one cathode.
摘要:
The present disclosure relates to a method for manufacturing and to a method for replacing pouches of a secondary battery. The present invention also relates to a rack or base for a secondary battery. The base comprises a plurality of reception portions wherein each one of the plurality of reception portions comprises a fastening element for receiving and mechanically supporting at least one of a plurality of pouches. A pair of electrical contact elements is provided for contacting the electrochemical cell in the pouch.
摘要:
The invention relates to a method for manufacturing lithium battery packs, comprising the steps of providing one or more electrochemical cells, entering the one or more electrochemical cells into a pouch, partly sealing the pouch with the one or more electrochemical cells, entering the pouch with the one or more electrochemical cells into a drying oven, resting the pouch in the drying oven for a defined time, removing the pouch from the drying oven, transferring the dried pouch to an electrolyte filling station, filling the pouch with electrolyte and sealing the pouch wherein the manufacturing steps are performed under a normal manufacturing environment conditions, and only selected critical manufacturing steps are performed under dry room conditions.
摘要:
Durch den Aufbau der Zelle wird die Selbstentladung vermindert. Die Zelle kann flach ausgebildet werden, ohne dass eine nennenswerte Verminderung der Energiedichte erfolgt. Im weiteren bieten sich Vorteile bei Verwendung von Elektrolyten mit tiefem Gefrierpunkt. Zwischen der positiven Elektrode (2) und der negativen Elektrode (4) ist zusätzlich zur Separatorenschicht (3) eine elektrolytundurchlässige inerte Folie (7) mit einer Dicke von etwa 5 bis 50 µm angeordnet. Die Folie weist eine durch Durchstechen, Stanzen oder Schmelzen erzeugte sehr kleine stromfokussierende Oeffnung (8) auf. Der gesamte elektrolytische Strom wird durch diese Oeffnung (8) fokussiert. Die Oberfläche der Oeffnung ist mindestens zehn mal kleiner als die Oberfläche der Separatorschicht. Für die Schichtdicke 2 der Folie und den Radius n der Oeffnung (8) gilt die Beziehung 4ℓ ri - Die elektrolytundurchlässige Folie (7) ist am Rande (9) der Zelle zwischen der positiven Elektrode (2) und einem Dichtungsring (6) dicht eingeklemmt. Als Materialien für die Folie kommen Teflon, Propylen, Nickel oder Inconel in Frage. Die Zelle eignet sich als Energiequelle für elektronische Uhren, Herz-Schrittmacher oder als Spannungsquelle für elektronische Informationsspeicher.
摘要:
The field of the invention relates to the reduction of gassing in a lithium titanate cell, a method for the preparation of electrodes leading to reduced gassing, manufacturing of a titanate-based lithium cell comprising such electrodes and the manufactured electrochemical cell. The invention provides a method for the preparation of an electrode for a lithium titanate cell comprising the use of fluorine acrylic hybrid latex for the preparation of at least one electrode of an electrochemical cell.