Publication detail

Fast-discharging apparatus 0 - 400 A / 2 - 4.2 V for testing of lithium cells

MARTIŠ, J. VOREL, P. PROCHÁZKA, P. CIPÍN, R. PAZDERA, I. ČERVINKA, D.

Original Title

Fast-discharging apparatus 0 - 400 A / 2 - 4.2 V for testing of lithium cells

English Title

Fast-discharging apparatus 0 - 400 A / 2 - 4.2 V for testing of lithium cells

Type

conference paper

Language

en

Original Abstract

This paper describes an apparatus developed for testing fast-discharging processes of lithium cells. The device is equipped with a current control loop which enables to set the discharging current manually in a range from 0 to ca. 400 A. A constant current discharging independent on the load voltage is ensured this way. In principle the load is created with a set of power MOSFETs operating in linear regime. Further, some passive power resistors are used to decrease the MOSFET power loss and to equalize the currents of individual MOSFETs. An analog control circuit is used. The developed device was used for testing the LiFePO4 cell of type AS-71J0280-2AA0-110 (3.2 V / 200 Ah). Its discharging characteristics with various constant discharging currents were measured and compared with the datasheet values. Also its charging characteristics (CC/CV method) were measured.

English abstract

This paper describes an apparatus developed for testing fast-discharging processes of lithium cells. The device is equipped with a current control loop which enables to set the discharging current manually in a range from 0 to ca. 400 A. A constant current discharging independent on the load voltage is ensured this way. In principle the load is created with a set of power MOSFETs operating in linear regime. Further, some passive power resistors are used to decrease the MOSFET power loss and to equalize the currents of individual MOSFETs. An analog control circuit is used. The developed device was used for testing the LiFePO4 cell of type AS-71J0280-2AA0-110 (3.2 V / 200 Ah). Its discharging characteristics with various constant discharging currents were measured and compared with the datasheet values. Also its charging characteristics (CC/CV method) were measured.

Keywords

battery discharging apparatus; high current; dummy load

RIV year

2015

Released

30.08.2015

ISBN

978-80-214-5109-4

Book

Advanced Batteries Accumulators and Fuel Cells – 16th ABAF

Pages from

125

Pages to

128

Pages count

4

BibTex


@inproceedings{BUT117850,
  author="Jan {Martiš} and Pavel {Vorel} and Petr {Procházka} and Radoslav {Cipín} and Ivo {Pazdera} and Dalibor {Červinka}",
  title="Fast-discharging apparatus 0 - 400 A / 2 - 4.2 V for testing of lithium cells",
  annote="This paper describes an apparatus developed for testing fast-discharging processes of lithium cells. The device is equipped with a current control loop which enables to set the discharging current manually in a range from 0 to ca. 400 A. A constant current discharging independent on the load voltage is ensured this way. In principle the load is created with a set of power MOSFETs operating in linear regime. Further, some passive power resistors are used to decrease the MOSFET power loss and to equalize the currents of individual MOSFETs. An analog control circuit is used. The developed device was used for testing the LiFePO4 cell of type AS-71J0280-2AA0-110 (3.2 V / 200 Ah). Its discharging characteristics with various constant discharging currents were measured and compared with the datasheet values. Also its charging characteristics (CC/CV method) were measured.",
  booktitle="Advanced Batteries Accumulators and Fuel Cells – 16th ABAF",
  chapter="117850",
  howpublished="electronic, physical medium",
  year="2015",
  month="august",
  pages="125--128",
  type="conference paper"
}