Let’s say I have a smartphone or an electric car, it loses 10% of the capacity.
Does it mean that the system consumes 10% more power, or the capacity just lowered, making me spend less electricity/money to charge?
In: Chemistry
A battery is a chemical process. There are unwanted side reactions that reduce the amount of useful reactants, causing loss of capacity. This especially happens at the highest and lowest voltages.
The system should consume less energy (joules or watt hours) charging from 0% to 100%. The capacity is lowered, so the battery both charges and discharges faster. The coulombic efficiency should stay the same; it shouldn’t be leaking current uselessly and heating things up. It should cost the same money as usual to add the same amount of energy to the battery.
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