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DNV GL © 2014 26 March 2019 SAFER, SMARTER, GREENERDNV GL © 2014
26 March 2019
Sverre Eriksen
MARITIME
Maritime Battery Safety and Rules updates
1
Electrical Energy Storage
DNV GL © 2014 26 March 20192
DNV GL © 2014 26 March 20193
DNV GL © 2014 26 March 2019
Battery System Certification
- BMS requirements
- Thermal runaway protection
- Testing
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DNV GL © 2014 26 March 20195
Battery(Safety)
A notation that cover requirements for the safety of the
battery installation covering vessel arrangement,
environmental control including ventilation and fire
safety.
Battery (power)The notation you need when the battery is used as a main source of power (propulsion power).
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▪ Vessel arrangement
▪ Battery space arrangement (ventilation, fire protection)
▪ Safe electrical installation
▪ Testing
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Energy Management System (EMS)
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▪ State of Charge, SOC
▪ State of Health, SOH
▪ Available Energy
▪ Available Power
DNV GL © 2014 26 March 2019
DNVGL Class rules for battery powered vessels
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2012 2015 2018 2019
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• Electric energy storage (EES)
installation able to absorb electrical energy, to store it for a certain amount of
time and to release electrical energy during which energy conversion processes
may be included
• EES systems covered by the class rules:
• Li-ion battery system
• Electrochemical capacitor
electric double layer capacitor that stores electrical
energy in an electrochemical cell, covering also
supercapacitors, ultracapacitors,
asymmetric capacitors and Li-ion capacitors.
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Energy and power density
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Source: Elcap
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Proposed requirements for installation of electrochemical capacitors:
• Certification requirements.
• Installation principles are similar to a Li-ion battery system
• Design principles of the electrochemical capacitor similar to Li-ion battery system.
• Testing of electrochemical capacitors according to UL 810A
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Proposed main changes for installation of battery systems:
• Certification requirements.
• Clarification of ventilation and gas detection requirements
• Inaccuracy in measurement and calculation of SOC and SOH.
• Additional requirements for liquid cooled battery systems
• Independent overcharge protection of battery modules.
DNV GL © 2014 26 March 2019
SAFER, SMARTER, GREENER
www.dnvgl.com
Maritime Battery Safety and Rules updates
13
DNV GL Maritime Classification