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Licensed Unlicensed Requires Authentication Published by De Gruyter October 10, 2018

Electrical properties of a high voltage aluminum electrolytic capacitor with anode foil

Elektrische Eigenschaften eines elektrolytischen Hochspannungskondensators aus Aluminium mit anodischer Folie
  • Qiu Xiao Bo
From the journal Materials Testing

Abstract

Among all the raw materials for aluminum electrolytic capacitors, there is no doubt that the anode foil is one of the most important raw materials influencing the performance of capacitors. The voltage, capacitance, thickness and impurity content of the anode foil have a direct effect on the performance of capacitor. The cost of anodes also contributes to the total cost of capacitors by a high percentage. Thus, for the manufacturers of capacitors, minimizing the anode foil costs needs also to be taken into account besides its performance. Against such a background, this article evaluates the anode foil of a new supplier to be used in a 400 V medium and in a high voltage aluminum electrolytic capacitor with the purpose of minimizing the product costs while achieving the same performance. The capacitors with new supplier's anode foil are compared with that using the current anode foil by evaluating the performance by the change of the various electrical properties.

Kurzfassung

Unter all den Rohmaterialien für elektrolytische Kondensatoren aus Aluminium stellt die anodische Folie eines der wichtigsten Materialien dar, die Eigenschaften des Kondensators beeinflussen. Die Spannung, die Kapazität, die Dicke und die Verunreinigungen haben eine direkte Auswirkung auf das Verhalten von Kondensatoren. Die Kosten der Anode tragen zudem zu einem hohen Prozentsatz zu den Gesamtkosten eines Kondensators bei. Für die Hersteller von Kondensatoren muss daher die Reduzierung der Kosten für die anodischen Folien ebenfalls neben dem Verhalten berücksichtigt werden. Vor diesem Hintergrund wurde in der diesem Beitrag zugrunde liegenden Studie die Anodenfolie eines neuen Zulieferers geprüft, die in einem 400 V Medium und in einem elektrolytischen Hochspannungskondensator aus Aluminium verwendet werden sollte, und zwar mit dem Ziel, die Produktkosten bei demselben Verhalten zu minimieren. Die Kondensatoren mit der Anodenfolie des neuen Herstellers wurden mit denen der bisherigen Anodenfolie verglichen, indem das Verhalten anhand der Änderungen der verschiedenen elektrischen Eigenschaften evaluiert wurde.


*Correspondence Address, Qiu Xiao Bo, EPCOS (Xiamen) Co., Ltd, Room505, Shiting Road No. 123, Xiamen City, P. R. China 361013, E-mail:

Qiu Xiao Bo, born 1979, achieved his BSc degree in Material Science from Wuhan Technology University, China, and a MSc degree in Mechanical Engineering from Xiamen University, China. From 2010 to 2013, he worked at EPCOS Xiamen Co., Ltd. in Xiamen, China as production design engineer in the field of snap-in aluminum electrolyte capacitors. Since 2013, he has been working as R&D Manager at Jimson Xiamen Co., Ltd. in Xiamen City in the field of film capacitors.


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Published Online: 2018-10-10
Published in Print: 2016-07-15

© 2016, Carl Hanser Verlag, München

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