Concept for a 48 V DC Power Supply System with Lithium Ion Batteries for Telecom Applications

Author

Schweizer-Berberich, Markus ; Willmes, Hartwig

Author_Institution

GAIA

fYear

2005

fDate

Sept. 2005

Firstpage

31

Lastpage

36

Abstract

The DC power supply systems of telecom applications for broadband and Internet access have increasing energy demands. However, in many cases the available space for the installation is already used to its maximum. A lithium ion battery can be the solution because of the higher energy density of about 150 Wh/kg and 380 Wh/l, good discharging performance and an operating range from -30degC to 60degC. The paper presents a conceptual battery with GAIA lithium ion cells for these new telecom demands. For safety and operating life reasons a battery management system is applied to this battery. Production, characterization and performance in comparison to other electrochemical systems are discussed

Keywords

battery management systems; lithium; secondary cells; telecommunication power supplies; -30 to 60 degC; 48 V; DC power supply system; Internet access; Li; battery management system; broadband access; discharging performance; electrochemical systems; energy demands; energy density; lithium ion batteries; operating life; telecom applications; Battery management systems; Electrodes; Internet; Lithium; Organic materials; Power supplies; Telecommunications; Temperature; Voltage; Wounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Conference, 2005. INTELEC '05. Twenty-Seventh International

Conference_Location

Berlin

Print_ISBN

978-3-8007-2905-0

Type

conf

DOI

10.1109/INTLEC.2005.335180

Filename

4134302