Smartphone batteries could last for up to five years with the imminent development of new technology, scientists have said.
Lithium-ion batteries, which most devices currently use, are notorious for degrading over time – which is why a new smartphone will last longer on a single charge than an old one.
This is because the graphic anodes (the negative terminal in batteries) that they use require a binder to keep it from falling apart when passing a charge between the electrolyte (the medium by which charge is passed) and the cathode (the positive terminal).
The most common binder is poly(vinylidene fluoride), or PVDF, but researchers from Japan Advanced Institute of Science and Technology suggest that a new binder – made from a bis-imino-acenaphthenequinone-paraphenylene (BP) copolymer – will be more effective.
Despite the difficult scientific name, the differences between a BP copolymer and the PVDF one are surprisingly simple: the BP binder has better mechanical stability and adherence to the anode, is more conductive, and makes a thinner electrolyte which means there is less resistance getting in the way.
It also does not react easily with the electrolyte, meaning that it will take significantly longer to break down.
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https://www.msn.com/en-gb/money/technology/new-smartphone-batteries-could-last-for-five-years-without-breaking-down/ar-BB1fr9JK?ocid=msedgntp