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New nanolithia cathodes may address technical drawbacks of Li-air batteries; scalable, cheap and safer Li-air battery system

Green Car Congress

As described in a paper in the journal Nature Energy , the cathode consisting of nanoscale amorphous lithia (nanolithia) confined in a cobalt oxide enabled charge/discharge between solid Li 2 O/Li 2 O 2 /LiO 2 without any gas evolution. V) causes severe energy efficiency and thermal management problems. Courtesy of the researchers.

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Kyoto team develops new cathode material for high-energy-density rechargeable magnesium batteries

Green Car Congress

A team of researchers from Kyoto University has demonstrated ion-exchanged MgFeSiO 4 as a feasible cathode material for use in high-energy-density rechargeable magnesium batteries. In addition to the high capacity, the relatively high negative reduction potential of magnesium metal can provide high energy density. 1 (MgFeSiO 4 ).

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Stanford, SLAC team cages silicon microparticles in graphene for stable, high-energy anode for Li-ion batteries

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A team from Stanford University and the Department of Energy’s SLAC National Accelerator Laboratory has developed a new practical, high-energy-capacity lithium-ion battery anode out of silicon by encapsulating Si microparticles (∼1–3 µm) using conformally synthesized cages of multilayered graphene. Nature Energy ) Click to enlarge.

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Univ. Houston, Caltech team develops new earth-abundant, cost-effective catalyst for water-splitting

Green Car Congress

In an open-access paper in the journal Nature Communications, the team said that their advance provides a different pathway to design cheap, efficient and sizable hydrogen-evolving electrode by simultaneously tuning the number of catalytic edge sites, porosity, heteroatom doping and electrical conductivity. b,d) Scale bar, 50 μm. (c,e)

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Sandia team boosts hydrogen production activity by molybdenum disulfide four-fold; low-cost catalyst for solar-driven water splitting

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Improving the capacity and efficiency of the Hydrogen Evolution Reaction (HER) is an enduring challenge of green energy production and artificial photosynthesis. Because of this, a commercial catalyst would require a huge amount of MOS 2. Molly is dirt cheap and abundant. People want a non-platinum catalyst.

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Voltage surge and transient suppression in EV chargers

Charged EVs

The most obvious cause of failure from a transient or surge is insulation breakdown (including semiconductor junctions, capacitor dielectrics, etc), but rapid heating from the energy content in a transient or surge—particularly those of longer duration—should not be dismissed as a culprit.

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How to Navigate EV Charging Rebates and Successfully Fund Your Home Charging Station

EV Match

In this follow-up to our article covering commercial incentives from last month, we’ll explore some of the rebates that can help you bring EV charging home on the cheap. According to the United States Department of Energy, 80% of EV charging occurs overnight at drivers’ homes, which isn’t all that surprising.