[HN Gopher] Charging lithium-ion batteries at high currents firs...
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       Charging lithium-ion batteries at high currents first increases
       lifespan by 50%
        
       Author : snazz
       Score  : 24 points
       Date   : 2024-09-08 22:06 UTC (53 minutes ago)
        
 (HTM) web link (www.eurekalert.org)
 (TXT) w3m dump (www.eurekalert.org)
        
       | westurner wrote:
       | But are there risks and thus costs?
        
         | zweifuss wrote:
         | Initial Litium deactivation is 30 % compared to 9 % with slow
         | formation loading.
        
           | lightedman wrote:
           | How much capacity is lost as a result of this?
        
       | mensetmanusman wrote:
       | Such a cool finding if it pans out in production. A hidden
       | process variable hiding in plain sight.
        
       | fencepost wrote:
       | TL;DR the high current causes a layer on the negative electron to
       | form a bit differently (and obviously faster), previously it was
       | thought that a slower initial charge led to better formation.
       | This is a process tweak incremental improvement, not anything
       | truly fundamental.
        
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       (page generated 2024-09-08 23:00 UTC)