Analyzing system safety in lithium-ion grid energy storage
Abstract
As grid energy storage systems become more complex, it grows more di cult to design them for safe operation. This paper first reviews the properties of lithium-ion batteries that can produce hazards in grid scale systems. Then the conventional safety engineering technique Probabilistic Risk Assessment (PRA) is reviewed to identify its limitations in complex systems. To address this gap, new research is presented on the application of Systems-Theoretic Process Analysis (STPA) to a lithium-ion battery based grid energy storage system. STPA is anticipated to ll the gaps recognized in PRA for designing complex systems and hence be more e ective or less costly to use during safety engineering. It was observed that STPA is able to capture causal scenarios for accidents not identified using PRA. Additionally, STPA enabled a more rational assessment of uncertainty (all that is not known) thereby promoting a healthy skepticism of design assumptions. Lastly, we conclude that STPA may indeed be more cost effective than PRA for safety engineering in lithium-ion battery systems. However, further research is needed to determine if this approach actually reduces safety engineering costs in development, or improves industry safety standards.
- Authors:
-
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE Office of Electricity (OE)
- OSTI Identifier:
- 1257985
- Alternate Identifier(s):
- OSTI ID: 1253213
- Report Number(s):
- SAND-2015-5224J
Journal ID: ISSN 0378-7753; PII: S037877531530327X
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Power Sources
- Additional Journal Information:
- Journal Volume: 300; Journal Issue: C; Journal ID: ISSN 0378-7753
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; Energy storage; Battery; Safety; Lithium-ion; STAMP; STPA
Citation Formats
Rosewater, David, and Williams, Adam. Analyzing system safety in lithium-ion grid energy storage. United States: N. p., 2015.
Web. doi:10.1016/j.jpowsour.2015.09.068.
Rosewater, David, & Williams, Adam. Analyzing system safety in lithium-ion grid energy storage. United States. https://doi.org/10.1016/j.jpowsour.2015.09.068
Rosewater, David, and Williams, Adam. Thu .
"Analyzing system safety in lithium-ion grid energy storage". United States. https://doi.org/10.1016/j.jpowsour.2015.09.068. https://www.osti.gov/servlets/purl/1257985.
@article{osti_1257985,
title = {Analyzing system safety in lithium-ion grid energy storage},
author = {Rosewater, David and Williams, Adam},
abstractNote = {As grid energy storage systems become more complex, it grows more di cult to design them for safe operation. This paper first reviews the properties of lithium-ion batteries that can produce hazards in grid scale systems. Then the conventional safety engineering technique Probabilistic Risk Assessment (PRA) is reviewed to identify its limitations in complex systems. To address this gap, new research is presented on the application of Systems-Theoretic Process Analysis (STPA) to a lithium-ion battery based grid energy storage system. STPA is anticipated to ll the gaps recognized in PRA for designing complex systems and hence be more e ective or less costly to use during safety engineering. It was observed that STPA is able to capture causal scenarios for accidents not identified using PRA. Additionally, STPA enabled a more rational assessment of uncertainty (all that is not known) thereby promoting a healthy skepticism of design assumptions. Lastly, we conclude that STPA may indeed be more cost effective than PRA for safety engineering in lithium-ion battery systems. However, further research is needed to determine if this approach actually reduces safety engineering costs in development, or improves industry safety standards.},
doi = {10.1016/j.jpowsour.2015.09.068},
journal = {Journal of Power Sources},
number = C,
volume = 300,
place = {United States},
year = {Thu Oct 08 00:00:00 EDT 2015},
month = {Thu Oct 08 00:00:00 EDT 2015}
}
Web of Science
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