On-board state of health monitoring of batteries using incremental capacity analysis
Abstract
A method is provided for determining capacity of a battery. The method includes: defining a model for a battery, where the model relates terminal voltage of the battery to charged capacity of the battery; taking a plurality of voltage measures of the battery, where the voltage measures are taken through a range of states of charge and the range excludes the battery being fully charged and fully discharged; determining the parameters of the model by fitting the plurality of voltage measures to the model; determining an incremental capacity curve for the battery by taking derivative of the model; and quantifying a peak of the incremental capacity curve to thereby determine a capacity of the battery.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1576377
- Patent Number(s):
- 10393813
- Application Number:
- 14/469,117
- Assignee:
- The Regents of the University of Michigan (Ann Arbor, MI)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60L - PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- DOE Contract Number:
- PI0000012
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Aug 26
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Sun, Jing, Peng, Huei, and Weng, Caihao. On-board state of health monitoring of batteries using incremental capacity analysis. United States: N. p., 2019.
Web.
Sun, Jing, Peng, Huei, & Weng, Caihao. On-board state of health monitoring of batteries using incremental capacity analysis. United States.
Sun, Jing, Peng, Huei, and Weng, Caihao. Tue .
"On-board state of health monitoring of batteries using incremental capacity analysis". United States. https://www.osti.gov/servlets/purl/1576377.
@article{osti_1576377,
title = {On-board state of health monitoring of batteries using incremental capacity analysis},
author = {Sun, Jing and Peng, Huei and Weng, Caihao},
abstractNote = {A method is provided for determining capacity of a battery. The method includes: defining a model for a battery, where the model relates terminal voltage of the battery to charged capacity of the battery; taking a plurality of voltage measures of the battery, where the voltage measures are taken through a range of states of charge and the range excludes the battery being fully charged and fully discharged; determining the parameters of the model by fitting the plurality of voltage measures to the model; determining an incremental capacity curve for the battery by taking derivative of the model; and quantifying a peak of the incremental capacity curve to thereby determine a capacity of the battery.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 27 00:00:00 EDT 2019},
month = {Tue Aug 27 00:00:00 EDT 2019}
}
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