Samsung graphene smartphone battery25 Aug 2020 16:38
https://www.slashgear.com/what-to-expect-from-future-smartphones-batteries-06623857/
'Plenty of work is underway in lithium-ion, however, exploration is being made in graphene, silicon-based anode, solid-state electrolyte and a handful of other options, which have their advantages over lithium batteries. Samsung is ahead in the race of experimenting with phone batteries.
Graphene batteries are seen as the nearest solution to lithium-ion since these can store more energy, charge quicker and hold charge way longer than their lithium counterparts. Samsung is allegedly working on a smartphone powered by patented graphene battery technology that could allow a phone to charge fully in less than 30 minutes.
To put that into perspective, the Galaxy S20 Ultra with 5,000 mAh battery takes 60 minutes to charge 100 percent using its 45W charger. Currently the fastest charging phone, OPPO Find X2 with 4,260 mAh battery takes 39 minutes to fully charge with its 65W super VOCC 2.0 charger.
Samsung is not long and alone in the race; often considered underdog, Huawei is closing on the heels of the South Korean electronics giant. It was recently rumored that Huawei P40 would have a graphene battery. Though the 2020 variant of the smartphone doesn’t feature the said battery, it is projected to launch with one in 2021'.