Samsung rumored to launch phone with graphene battery next year

Graphene Info ^ | August 19, 2019 | CNet

[2ndDivisionVet]

Samsung may be in the race to develop a graphene-based alternative to lithium-ion batteries for its phones. Rumors are going around claiming that the Company hopes to have at least one phone with a graphene battery ready next year or by 2021.

The word is that these graphene-based batteries will be capable of a full charge in under a half-hour, but they still need to raise capacities while lowering costs. In 2017, Samsung said its researchers developed a "graphene ball" material that enables five times faster charging speeds than standard lithium-ion batteries.

Samsung may be looking into battery alternatives following past problems with its Note 7 phones, when users started reporting overheating problems. Samsung tied the issues to a battery design flaw and recalled all the Note 7 phones on the market. That didn't seem to fix the problem, though, with the replacement devices also overheating. Samsung launched a second recall and stopped manufacturing the Note 7. Following the problems, Samsung changed its testing process for key mobile components and instituted an eight-point inspection process for batteries.

[caver]

I’ve had a pencil with a graphite battery since the first grade.

[Bayard]

Have they finally found a way to mass produce that stuff yet? Its been this matador cape of click bait and hopey dreams for a long time now.

I know 15 years since its discovery is not long but still the press keeps pimping out hints and guesses for clicks.

[neverevergiveup]

“I’ve had a pencil with a graphite battery since the first grade.”

I’ve had graphite embedded in my hand since having a pencil fight in the second grade.

[SoCal Pubbie]

I have graphite in my palm since freshman year in high school. Had a pencil in my back pocket, jumped off the bleachers, and impaled my right hand!

[farming pharmer]

I’ve had graphite embedded in my hand since having a pencil fight in the second grade.

Fifth grade: grabbed at a freshly sharpened pencil as it fell, and stabbed about a half-inch of the lead into my lower right palm.

That was 42 years ago, and the mark is still there.

[Steve Van Doorn]

My father worked on this. he never could get it to work. His name is on 27 patents. One of those everyone uses every day.

[ConservativeMan55]

Wow that’s pretty cool!

[upchuck]

This is the graphene ping list.

Click Private Reply below to join or leave this list.

Interesting: 9 Uses for Graphene.

[SunkenCiv]

It's some low-down carbon if there ever was, even if it had no cause, graphene, graphene...

[HandyDandy]

Graphene is a zero-gap semiconductor, because its conduction and valence bands meet at the Dirac points. The Dirac points are six locations in momentum space, on the edge of the Brillouin zone, divided into two non-equivalent sets of three points. The two sets are labeled K and K'. The sets give graphene a valley degeneracy of gv = 2. By contrast, for traditional semiconductors the primary point of interest is generally Γ, where momentum is zero. Four electronic properties separate it from other condensed matter systems.

[Falconspeed]

“The sets give graphene a valley degeneracy of gv = 2.” Impressive. I hope to understand after studying physics in ten years. Batteries: No such thing as a free lunch.

[fella]

How long will it run the phone before it goes tits-up? iphones are dead at about 2 to 3 hours.

[SandwicheGuy]

Graphene is a zero-gap semiconductor, because its conduction and valence bands meet at the Dirac points. The Dirac points are six locations in momentum space, on the edge of the Brillouin zone, divided into two non-equivalent sets of three points. The two sets are labeled K and K'. The sets give graphene a valley degeneracy of gv = 2. By contrast, for traditional semiconductors the primary point of interest is generally Γ, where momentum is zero. Four electronic properties separate it from other condensed matter systems.

I'm pretty sure this is an eloquent and reasoned explanation of carbon conductors. I understood the first and lat words in the paragraph....Dirac points???? I enjoyed reading it, thanks for posting.

[montag813]

Calling B.S. and clickbait on this article

[HandyDandy]

“an eloquent and reasoned explanation“

That is exactly how it struck me when I first copied and pasted it from wiki.

[bluejean]

“The sets give graphene a valley degeneracy of gv = 2”

Free associating to Ellen DeGeneres, I then thought Graphene could be a good stage name for a drag queen, with a gay velocity of 2. After that, I realized my thoughts hurt, and it’s late.

[HandyDandy]

“......valley degeneracy of gv = 2.”

It is precisely this particular sequence that causes most people’s minds to wander off into thoughts of the opposite sex.......

[doorgunner69]

Will the calls it makes and receives be better somehow?

[Dexter Morgan]

I got a staple in the thumb in 1st grade from a classmate, but I pulled it out of the bone by myself. The three staples from splitting my head open that year were removed by my doctor!