Search International and National Patent Collections

1. (WO2018122131) HYBRID BATTERY CHARGER/TESTER

Pub. No.:    WO/2018/122131    International Application No.:    PCT/EP2017/084269
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Dec 22 00:59:59 CET 2017
IPC: H02J 7/00
G01R 31/36
Applicants: VITO NV
Inventors: COENEN, Peter
DE BREUCKER, Sven
MULDER, Grietus
Title: HYBRID BATTERY CHARGER/TESTER
Abstract:
A hybrid battery charger-testing device is described being a modification of a battery charger having a DC output stage, and a boost converter added to the DC output stage of the charger, the boost converter being configured to output pulses and/ or a continuous AC wave for testing a battery. The hybrid charger can be used to output a purely AC test wave, e.g. sinusoidal wave for an electrochemical impedance spectroscopy test, to output pulses such as HPPC pulses and/or to perform GITT or incremental charge tests. For example, determination of battery parameters by diagnostic testing can be achieved by combining the existing functionality of a battery charger with test procedures involving currents much lower than used during charging of the battery or of returning battery energy to the electricity grid.