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Year-long testing of Leclanché 60 Ah G/NMC cells shows high energy density, high cycle life

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V reaching 10% capacity increase in comparison to a standard G/NMC cell resulting in lower cost of installed battery pack (euros per kWh) for EV-applications. Cell assembly starts with the electrode manufacturing exclusively using a water-based binder (WBB) process in an eco-friendly environment.

Energy 435
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Researchers use carbon-based anodes with “bumpy” surfaces for Li-ion batteries that last longer in extreme cold

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Theoretical calculations demonstrate that the curved surfaces bind lithium with a stronger affinity than the planar surface with zero curvature, particularly the structure with a positive curvature, making it possible to accomplish the high capacity of the carbon anode in an extremely cold environment. C and maintained 85.9% —Lu et al.

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Study finds all-electric rideshare fleet could reduce carbon emissions, but increase traffic issues

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But the cars and SUVs used in these situations drive more miles each year than a typical personal vehicle, contributing a higher proportion of greenhouse gases to the environment. In the simulations, battery-powered vehicles, particularly the 40 kWh ones, needed more frequent and longer trips without passengers to get to recharging stations.

Fleet 195
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OSU smart membrane could enable new category of high-energy, high-power energy storage for EVs

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Described in a paper published in the RSC journal Energy & Environmental Science , the smart membrane separator could enable the design of a new category of rechargeable/refillable energy storage devices with high energy density and specific power that would overcome the contemporary limitations of electric vehicles.

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Audi to introduce entry-level e-tron model with smaller battery pack, less range

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The Audi e-tron 50 quattro will complement the existing e-tron 55 quattro model, with a 71 kWh battery and two electric motors providing for a range of up to 186 miles according to the WLTP test cycle and its 120kW charging capability facilitating recharging to 80% capacity in around 30 minutes at fast-charging stations.

Audi 191
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TU Graz researchers identify singlet oxygen as major cause of deleterious side reactions in Li-air batteries; suggested approach to counter

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Rechargeable non-aqueous metal–O 2 (air) batteries have attracted immense interest because of their high theoretical specific energy and potentially better sustainability and cost in comparison to current lithium-ion batteries. Practical realization, however, still faces many challenges. V versus Li/Li +.

Li-ion 170
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Penn State team devises new control strategy to enhance EV battery performance when driving in cold temperatures

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In a paper in the Journal of Power Sources , they report that this technique fully restores room-temperature battery power and regeneration in 13, 33, 46, 56 and 112 seconds into uninterrupted driving in 0, −10, −20, −30 and −40 °C environments, respectively. Zhang et al. Click to enlarge.

Batteries 186