Description | Power Density | Specific Power | Energy Density | Specific Weight |
kW/litre | kW/kg | Wh/litre | Wh/kg | |
Lead-acid (LAB) | 0.12 | 0.08 | 90 | 44 |
Zebra | 0.24 | 0.16 | 167 | 114 |
Sodium Sulphide (NaS) | 0.021 | 0.17 | 170 | 117 |
Lithium-ion (LIB) | 0.22 | 0.11 | 270 | 120 |
Siemens PEMFC BZM120 fuel cell | 0.257 | 0.13 | 1200 MHalblaub comment 22/1/16 | |
Silver Zinc see | ||||
Lithium Sulfur Battery or Li-S | 325 |
The 2008 conference paper Submarine Power and Propulsion - Trends and Opportunities by Engineers at BMT Defence Services Ltd, Bath, United Kingdom at http://www.bmtdsl.co.uk/media/1057650/BMTDSL-Submarine-Power-and-Propulsion-Conpaper-Pacific08-Jan08.pdf is very interesting. Page 8 of the paper contains Table.1 (above) - Battery & Fuel Cell Technologies.
Page 7 describes the Zebra battery [Ref 18]. ], a sodium nickel chloride battery, developed by Rolls-Royce for marine use. See German wikipedia entry on Zebra Battery.
Page 8 comments:
“Lithium ion designs have successfully been developed for automotive applications [Ref. 19]. Their energy density is over twice that of lead acids batteries and it is less than half the weight for the same energy at the 5 hour discharge rate. A unit which is 50cm by 40cm by 40cm has energy of 21kWh and can develop 100kW continuously (i.e. five hour discharge) or 200kW for short periods of time.
The Table looks like a good vehicle to add more recent data – post 2008.
Pete