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Penn State team investigates battery requirements for eVTOL applications vs EVs

Green Car Congress

The unique operating profiles and requirements of electric vertical takeoff and landing (eVTOL) aircraft—also known as flying cars—present formidable challenges to batteries. EVTOL requirements on battery specific power and energy. Representative battery power profile during an eVTOL trip. Yang et al.

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Why is maintaining 80% battery power the best choice for EVs? | EV Basics

Setec Powerr

However, the performance of an EV relies heavily on its battery, which is susceptible to degradation over time. The EV 80% rule refers to designing the battery capacity of electric vehicles to be around 80% of its maximum capacity to achieve optimal performance and lifespan. Why is 80% battery capacity the optimal choice?

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Rechargeable membrane-less hydrogen bromine flow battery shows high power density

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MIT researchers have engineered a new rechargeable, membrane-less hydrogen bromine laminar flow battery with high power density. The membrane-less design enables power densities of 0.795?W?cm 2 at room temperature and atmospheric pressure, with a round-trip voltage efficiency of 92% at 25% of peak power.

Recharge 291
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BMW unveils new 7 Series; battery-electric i7

Green Car Congress

This design precludes the need for rare earth metals altogether in the manufacture of the rotor. The virtually silent power delivery of the BMW i7 xDrive60 is further helped by improvements to the electric drive units’ acoustics, a model-specific mounting concept and newly developed noise encapsulation for the electric motors.

BMW 446
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Rolls-Royce developing turbogenerator technology for hybrid-electric aviation applications

Green Car Congress

Rolls-Royce is developing turbogenerator technology—including a new small engine—designed for hybrid-electric aviation applications. The turbogenerator will recharge batteries after take-off or power propellers directly, enabling aircraft to switch between power sources in flight.

Hybrid 448
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Bosch developing cloud-based swarm intelligence services to augment EV battery management systems

Green Car Congress

To help electric vehicle batteries last longer, Bosch is developing new cloud services that supplement the individual vehicles’ battery-management systems. Bosch is connecting electric-vehicle batteries with the cloud. Its data-based services mean we can substantially improve batteries’ performance and extend their service life.

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World’s First Hybrid Battery-powered Electric Motorcycle to Be Revealed

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The technology can be used in a real-world electric vehicle (EV) powertrain by combining them with traditional lithium-ion cells to form a hybrid battery system. Which will result in shrinkage in the size of the lithium-ion battery and charging periods, potentially doubling range and extending system life. Foreseeing The Future.