Researchers from the University of California have discovered a way to make a mobile phone battery that will last forever.
Specifically, grad student Mya Le Thai discovered a way to boost battery longevity when she was playing around with batteries and coating them in a special gel.
Normally, the usual lithium battery loses its capacity and strength after approximately 7 000 charges. Delicate battery components, called nanowires, don’t cope with the intense charging process too well.
But with a manganese dioxide shell the nanowires lost none of its capacity, despite being put through 200,000 charges in three months.
Thus, batteries for mobile phone, laptops and tablets could last “forever,” but could also be used in cars and spacecraft. Her discovery explains that gel helps nanowires to maintain their shape and structure and to not spend over use.