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Title: Bulk force in a battery pack and its application to state of charge estimation

Abstract

There is disclosed an electrical device including a battery pack, a pressure sensor for measuring a volume change of the battery pack, a voltage sensor in electrical communication with a positive terminal and a negative terminal of the battery pack, a temperature sensor positioned in a cell of the battery pack, and a battery management system. The battery management system includes a controller in electrical communication with the pressure sensor, the voltage sensor, and the temperature sensor, the controller being configured to execute a program stored in the controller to determine a state of charge percentage of the battery pack based on a pressure reading from the pressure sensor, a terminal voltage reading from the voltage sensor, and a temperature reading from the temperature sensor.

Inventors:
; ; ;
Issue Date:
Research Org.:
US Department of Energy (USDOE), Washington, DC (United States). Advanced Research Projects Agency-Energy (ARPA-E)
Sponsoring Org.:
USDOE
OSTI Identifier:
1477192
Patent Number(s):
10074996
Application Number:
14/839,096
Assignee:
The Regents of the University of Michigan (Ann Arbor, MI)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
AR0000269
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Aug 28
Country of Publication:
United States
Language:
English

Citation Formats

Stefanopoulou, Anna G., Mohan, Shankar Narayan, Kim, Youngki, and Siegel, Jason B. Bulk force in a battery pack and its application to state of charge estimation. United States: N. p., 2018. Web.
Stefanopoulou, Anna G., Mohan, Shankar Narayan, Kim, Youngki, & Siegel, Jason B. Bulk force in a battery pack and its application to state of charge estimation. United States.
Stefanopoulou, Anna G., Mohan, Shankar Narayan, Kim, Youngki, and Siegel, Jason B. Tue . "Bulk force in a battery pack and its application to state of charge estimation". United States. https://www.osti.gov/servlets/purl/1477192.
@article{osti_1477192,
title = {Bulk force in a battery pack and its application to state of charge estimation},
author = {Stefanopoulou, Anna G. and Mohan, Shankar Narayan and Kim, Youngki and Siegel, Jason B.},
abstractNote = {There is disclosed an electrical device including a battery pack, a pressure sensor for measuring a volume change of the battery pack, a voltage sensor in electrical communication with a positive terminal and a negative terminal of the battery pack, a temperature sensor positioned in a cell of the battery pack, and a battery management system. The battery management system includes a controller in electrical communication with the pressure sensor, the voltage sensor, and the temperature sensor, the controller being configured to execute a program stored in the controller to determine a state of charge percentage of the battery pack based on a pressure reading from the pressure sensor, a terminal voltage reading from the voltage sensor, and a temperature reading from the temperature sensor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {9}
}

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