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Joined 1 year ago
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Cake day: June 12th, 2023

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  • Battery temperature management seems to be a key limiting factor.

    At least a few years ago, and likely still, the reasons and conditions under which the barrier layers in the battery degrade were not super well understood. Heat seems to be a key contributing factor and charging a battery quickly warms up the battery and I suppose not fully evenly within a cell. Not knowing the complete extent of this makes the early LEAF’s lack of actively cooled battery a reasonable choice. Before that, the batteries of earliest Prius cars held up way longer than expected.

    Like with a phone: heat and cold is not super awesome for the battery. It seems heat is especially bad for longevity.