Dispersion of stored energy within a battery system at risk of failure
Abstract
A method and system for dispersing stored energy in an energy storage system to delay or arrest propagation of thermal runaway and thermally-induced cascading failures. The system includes a plurality of battery sub-assemblies and DC-DC converters connected to a shared DC bus through which energy may be exchanged. The system may be interfaced to an AC power grid or DC power system through an additional power converter. The method of dispersing stored energy uses this system to charge and discharge sub-assemblies such that the system is less susceptible to propagation of thermal runaway. The method determines, based on awareness of current system state, battery types, and electrical and thermal structure, the sequence of charging and discharging actions to best inhibit thermal runaway while preserving the system's ability to perform subsequent energy redistribution.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 2294015
- Patent Number(s):
- 11855264
- Application Number:
- 17/144,681
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER
- DOE Contract Number:
- NA0003525
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 01/08/2021
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Mueller, Jacob, Preger, Yuliya, Hewson, John C., and Kurzawski, Andrew. Dispersion of stored energy within a battery system at risk of failure. United States: N. p., 2023.
Web.
Mueller, Jacob, Preger, Yuliya, Hewson, John C., & Kurzawski, Andrew. Dispersion of stored energy within a battery system at risk of failure. United States.
Mueller, Jacob, Preger, Yuliya, Hewson, John C., and Kurzawski, Andrew. Tue .
"Dispersion of stored energy within a battery system at risk of failure". United States. https://www.osti.gov/servlets/purl/2294015.
@article{osti_2294015,
title = {Dispersion of stored energy within a battery system at risk of failure},
author = {Mueller, Jacob and Preger, Yuliya and Hewson, John C. and Kurzawski, Andrew},
abstractNote = {A method and system for dispersing stored energy in an energy storage system to delay or arrest propagation of thermal runaway and thermally-induced cascading failures. The system includes a plurality of battery sub-assemblies and DC-DC converters connected to a shared DC bus through which energy may be exchanged. The system may be interfaced to an AC power grid or DC power system through an additional power converter. The method of dispersing stored energy uses this system to charge and discharge sub-assemblies such that the system is less susceptible to propagation of thermal runaway. The method determines, based on awareness of current system state, battery types, and electrical and thermal structure, the sequence of charging and discharging actions to best inhibit thermal runaway while preserving the system's ability to perform subsequent energy redistribution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {12}
}
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