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Title: Method for monitoring/managing electrochemical energy device by detecting intercalation stage changes

Abstract

A method for determining an operating state (e.g., state-of-charge or state-of-health) and/or generating management (charge/discharge) control information in a system including an electrochemical energy device (EED, e.g., a rechargeable Li-ion battery, supercapacitor or fuel cell) that uses optical sensors to detect the intercalation stage change events occurring in the EED. The externally or internally mounted optical sensors measure operating parameter (e.g., strain and/or temperature) changes of the EED during charge/recharge cycling, and transmit measured parameter data using light signals sent over optical fibers to a detector/converter. A processor then analyzes the measured parameter data, e.g., using a model-based estimation process, to detect intercalation stage changes (i.e., crystalline structure changes caused by migration of guest species, such as Li-ions, between the EED's anode and cathode), and generates the operating state and charge/discharge control information based the analysis.

Inventors:
; ; ; ; ; ; ;
Issue Date:
Research Org.:
Palo Alto Research Center Inc., Palo Alto, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531977
Patent Number(s):
9,583,796
Application Number:
14/242,850
Assignee:
Palo Alto Research Center Incorporated (Palo Alto, CA)
DOE Contract Number:  
AR0000274
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014-04-01
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Saha, Bhaskar, Raghavan, Ajay, Kiesel, Peter, Sommer, Lars Wilko, Lochbaum, Alexander, Staudt, Tobias, Sahu, Saroj Kumar, and Ganguli, Anurag. Method for monitoring/managing electrochemical energy device by detecting intercalation stage changes. United States: N. p., 2017. Web.
Saha, Bhaskar, Raghavan, Ajay, Kiesel, Peter, Sommer, Lars Wilko, Lochbaum, Alexander, Staudt, Tobias, Sahu, Saroj Kumar, & Ganguli, Anurag. Method for monitoring/managing electrochemical energy device by detecting intercalation stage changes. United States.
Saha, Bhaskar, Raghavan, Ajay, Kiesel, Peter, Sommer, Lars Wilko, Lochbaum, Alexander, Staudt, Tobias, Sahu, Saroj Kumar, and Ganguli, Anurag. Tue . "Method for monitoring/managing electrochemical energy device by detecting intercalation stage changes". United States. https://www.osti.gov/servlets/purl/1531977.
@article{osti_1531977,
title = {Method for monitoring/managing electrochemical energy device by detecting intercalation stage changes},
author = {Saha, Bhaskar and Raghavan, Ajay and Kiesel, Peter and Sommer, Lars Wilko and Lochbaum, Alexander and Staudt, Tobias and Sahu, Saroj Kumar and Ganguli, Anurag},
abstractNote = {A method for determining an operating state (e.g., state-of-charge or state-of-health) and/or generating management (charge/discharge) control information in a system including an electrochemical energy device (EED, e.g., a rechargeable Li-ion battery, supercapacitor or fuel cell) that uses optical sensors to detect the intercalation stage change events occurring in the EED. The externally or internally mounted optical sensors measure operating parameter (e.g., strain and/or temperature) changes of the EED during charge/recharge cycling, and transmit measured parameter data using light signals sent over optical fibers to a detector/converter. A processor then analyzes the measured parameter data, e.g., using a model-based estimation process, to detect intercalation stage changes (i.e., crystalline structure changes caused by migration of guest species, such as Li-ions, between the EED's anode and cathode), and generates the operating state and charge/discharge control information based the analysis.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {2}
}

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