OXIS Lithium Sulfur pouch cell
OXIS Energy, founded in 2005 and based out of the Culham Science Centre in Oxfordshire, UK, announced a new partnership with Multi Source Power Technologies- a start-up founded in 2013 by Simon Patterson, an experienced hybrid and electric marine drive train designer.
The main topic of cooperation is to develop lithium-sulfur battery system for marine applications.
We are of course very curious about that project because Li-S batteries are expected to be useful in electric cars.
"OXIS and MSP will launch the new battery in the spring of 2015. One of MSP's specialities is designing and manufacturing battery packs and hybrid power and propulsion systems for the marine industry. Integrating OXIS's expertise in the development of the next generation of cell technology allows them to develop lithium sulfur rechargeable battery systems for the marine market."
This development will be part of the Ghost Power Brand. It will be a versatile battery system scalable from 20 kWh to 50 kWh upwards and will provide multiple configurable voltage outputs that will not only power electric motor boats, but can also be used to power air conditioning systems, navigation systems etc. The battery will be designed for Lloyd's Register Group approval which will give confidence and assurance to customers whilst at the same time, it will help to lower expensive insurance premiums."
Comparison of different technologies by OXIS Energy
20-50 kWh battery packs would be good for cars, but before you get excited by 200 or even 300 Wh/kg "achieved at cell level in 2014", we checked some details in specifications.
Ultralight Cell has energy density over 300 Wh/kg, but cycle life (80% DoD) at just 200 to 80% of capacity. Long- life Cell can withstand 1,000 cycles, but energy density is just 160 Wh/kg.
For 2016, expected is EV Cell with 400 Wh/kg and 615 cycles, which would probably be the most interesting for EV applications.
Huw Hampson-Jones, CEO of OXIS said of the new partnership:
"I'm delighted to be able to announce this partnership with MSP. MSP has a strong pedigree in electric boat building expertise coupled with in-depth battery experience. It has a quality team working to develop the ideal battery solution for the electric boat market and we are very happy that its quality and safety focused team has chosen OXIS's lithium sulfur technology. The inherent safety of OXIS's cell technology, along with its lightness provides MSP with a strong competitive advantage for Marine battery systems."
Simon Patterson, CEO of MSP stated:
"Lithium Sulfur technology is the ideal solution for the marine industry, combining safety and lightweight aspects. The OXIS battery technology provides the highest levels of safety our customers demand. Developing a battery system with Lloyds' approval will be extraordinary, demonstrating not only industry confidence in the product, but also reducing insurance premiums. Furthermore, lithium sulfur cells are already lighter than the lightest lithium-Ion technology and the overall weight reduction provides significant improvement to both the capacity performance and efficiency of the battery technology."
Here are videos from some laboratory tests of OXIS Energy cells: