Patent · US Active

Method and circuit arrangement for determining the Coulombic efficiency of battery modules

US9891286B2 · kind B2 · utility

4Cited by

2References

8Claims

0Family size

Assignees

Robert Bosch GmbH · DE
SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

Joachim Fetzer · Bad Boll, DE
Holger Fink · Stuttgart, DE
Hans Partes · Asperg, DE

Key dates

Filing date	Jan 23, 2015
Grant date	Feb 13, 2018
Priority date	—
Expiry date	Jan 23, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The disclosure describes a method for determining a coulombic efficiency of battery modules of a rechargeable battery using a circuit arrangement connected to the battery modules and that has a plurality of switching modules for selectively connecting every single one of the battery modules in a common current path or for alternatively isolating every single one of the battery modules from the common current path and from at least one power semiconductor element, which can be operated in linear mode, for regulating the current that flows through the current path. The switching modules are used to select at least one of the battery modules and to connect it in the current path while all other battery modules are isolated from the current path by the switching modules. The selected battery module is subjected to at least one discharge process and at least one charging process via the current path.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.