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Title: Device for monitoring cell voltage

Abstract

A device for monitoring a rechargeable battery having a number of electrically connected cells includes at least one current interruption switch for interrupting current flowing through at least one associated cell and a plurality of monitoring units for detecting cell voltage. Each monitoring unit is associated with a single cell and includes a reference voltage unit for producing a defined reference threshold voltage and a voltage comparison unit for comparing the reference threshold voltage with a partial cell voltage of the associated cell. The reference voltage unit is electrically supplied from the cell voltage of the associated cell. The voltage comparison unit is coupled to the at least one current interruption switch for interrupting the current of at least the current flowing through the associated cell, with a defined minimum difference between the reference threshold voltage and the partial cell voltage.

Inventors:
 [1];  [2]
  1. Garbsen, DE
  2. Edermissen, DE
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1062380
Patent Number(s):
8,248,030
Application Number:
12/084,845
Assignee:
Johnson Controls Technology Company (Holland, MI)
DOE Contract Number:  
FC26-95EE50425
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Doepke, Matthias, and Eisermann, Henning. Device for monitoring cell voltage. United States: N. p., 2012. Web.
Doepke, Matthias, & Eisermann, Henning. Device for monitoring cell voltage. United States.
Doepke, Matthias, and Eisermann, Henning. Tue . "Device for monitoring cell voltage". United States. https://www.osti.gov/servlets/purl/1062380.
@article{osti_1062380,
title = {Device for monitoring cell voltage},
author = {Doepke, Matthias and Eisermann, Henning},
abstractNote = {A device for monitoring a rechargeable battery having a number of electrically connected cells includes at least one current interruption switch for interrupting current flowing through at least one associated cell and a plurality of monitoring units for detecting cell voltage. Each monitoring unit is associated with a single cell and includes a reference voltage unit for producing a defined reference threshold voltage and a voltage comparison unit for comparing the reference threshold voltage with a partial cell voltage of the associated cell. The reference voltage unit is electrically supplied from the cell voltage of the associated cell. The voltage comparison unit is coupled to the at least one current interruption switch for interrupting the current of at least the current flowing through the associated cell, with a defined minimum difference between the reference threshold voltage and the partial cell voltage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {8}
}

Patent:

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