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The described battery energy storage system (BESS) in this paper portrays the world's first battery 2nd life system with high density packaging of automotive BMW i3 battery packs, refrigerant cooling of battery cells, DC high power charging of EVs and multi-use-case suitability. The focus here lies on two applications: EV high power charging of up to 200 kW and spot market energy arbitrage. The latter...
Battery 2nd life storage systems are a result of the synergies between the automotive and power generation sectors. They leverage the sustainability potential of electric vehicles (EVs) and renewable energy grid integration simultaneously. The vast experience of automobile manufacturers in battery system manufacturing and long-term operation in EVs provide a strong basis for replicating their success...
This paper focuses on an energy economic analysis of battery electric vehicles (BEVs), specifically driving long distances and thus requiring a means of range extension. Under investigation are three range extension technologies: fast charging, battery switching and driving with an on-board micro internal combustion engine. Simulations of renewable power plant portfolios in 27 European countries show...
In future electric vehicles are dependent on renewable energy sources to provide the electricity required for sustainable mobility. This paper examines the results of a cost-efficient renewable energy supply simulation for fast charge and battery switch stations of electric vehicles. Typical feed-in characteristics of photovoltaics, offshore and onshore wind power in Germany are used hereby. Overall...
Electric vehicles (EVs) offer the possibility of electrical energy storage within the power grid on low voltage level. By means of controlled off-peak charging of the EVs' batteries, it is thus possible to cover the power demand of several million EVs without the need for additional power plant capacities. In effect, electricity can thus be supplied at a very cost-effective rate. A simulation of Germany's...
We have built a neutron resonance spin echo (NRSE) spectrometer with two secondary spectrometer arms, in order to double the solid angle of detectable neutrons. NRSE is well adapted for building up a multi-detector spectrometer, because it needs only compact magnetic coils. Compared to neutron spin echo (NSE), stray fields are much less important and can be suppressed completely by means of mumetal...
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