When it comes to electric vehicles, Yamaha’s electric bicycle division has been charging into the future while its electric motorcycle division has been oddly quiet and unproductive — at least outwardly.
But now we’re getting a new look at a series of electric motors that Yamaha has been developing — motors that could rapidly progress Yamaha’s EV efforts.
Solar power, hydrogen fuel from seawater, automatic wingsails, a 6 year journey.
The Energy Observer set sail on a six-year world tour in 2017, testing new technologies, from onboard hydrogen electrolysis to fully-automated sails. It’s hoped the rugged ocean environment will prove the techs’ durability and usefulness at home.
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Just a few years ago, low cost natural gas was the main force pushing coal out of the power generation market, and now low cost solar power is sneaking up on low cost natural gas. So far the competition is a trickle, not a flood. However, natural gas stakeholders don’t have much breathing room left, as indicated by the latest perovskite solar cell research.
Lithium (Li) batteries, or lithium metal batteries, use metallic lithium as an anode. Over the past few decades, rechargeable Li batteries have been used to power a wide variety of electronic devices, including toys, portable consumer devices and electric vehicles.
While these batteries typically achieve reliable performances at room temperature, their energy efficiency, power and cycle life tend to decrease significantly at temperatures below −10 °C. The inability to function well at low temperatures is a crucial drawback, as it greatly limits their use in regions with particularly cold climates. The main reason for this limitation is that at temperatures below −10 °C the solid-electrolyte interphase (SEI) becomes unstable and leads to what is known as the dendritic Li plating of the anode in the batteries.
A team of researchers at Pennsylvania State University and Argonne National Laboratory recently introduced a new design for Li metal batteries that could overcome this well-documented drawback. The resulting batteries, presented in a paper published in Nature Energy, were found to perform remarkably well at low temperatures compared to previously developed Li batteries.
