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Joined 1 year ago
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Cake day: July 20th, 2023

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  • No, never. Current charging rates already get close to thermal constraints. Hitting those charging rates either requires accepting much lower power density or using way more metal per cell. This research might inform design changes to improve charging rates, but we’ll never see high capacity batteries charging in a minute.

    The researchers know this and only mention wearables and iot devices applications. The article author erroneously makes the leap to high energy density devices.

    If you don’t care about energy density at all, ceramic capacitors can already charge and discharge in microseconds.




  • Other countries should also be looking at adding forest area and wetlands in a strategic fashion to improve freshwater retention. Deforesting clearly changes local climates. So we should be able to do the reverse as well.

    Historical accounts make it sound like the vast majority of land east of the Mississippi in the US used to be old growth forest. Between the chestnut blight and over 200 years of logging, most of the old growth forest is gone.

    India has had some notable successes with a grassroots movement to get rural communities to do small earthworks projects to colllect water during the rainy season and let it seep into the ground. They have demonstrated a notable reduction in crop failures during the dry season resulting from the community action.