Reply To: New smartphone batteries could last for five years without breaking down 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 –…

[UK Sentinel]

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“Whereas a half-cell using PVDF as a binder exhibited only 65 per cent of its original capacity after about 500 charge-discharge cycles, the half-cell using the BP copolymer as a binder showed a capacity retention of 95 per cent after over 1700 such cycles,” says Professor Noriyoshi Matsumi, who led the study alongside Professor Tatsuo Kaneko, Senior Lecturer Rajashekar Badam, PhD student Agman Gupta, and former postdoctoral fellow Aniruddha Nag.

Charge cycles are not easily converted into days, as they refer to the time for a battery to completely drain. Many modern smartphones can last for over 24 hours if not used intensively.

“You complete one charge cycle when you’ve used (discharged) an amount that equals 100 per cent of your battery’s capacity — but not necessarily all from one charge”, Apple explains, as it uses of Lithium-ion batteries in its iPhones and iPads.

https://www.greencarcongress.com/2021/03/20210308-jaist.html

 

In a completely sane world, madness is the only freedom (J.G.Ballard).

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