A cathode material for li-ion batteries with a very high charge rate – down to 90s – has been created, retaining more than 75% of an initial capacity. The discovery may stipulate the development of batteries where expensive lithium could be replaced with cheaper potassium.
Nowadays Li-ion batteries power a wide range of electronic devices: mobile phones, tablets, laptops. They became popular in 90s and subsequently ousted widespread nickel-metal hydride batteries. However, their capacity may drop when temperature falls below 0...
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