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Samsung Develops 'Graphene Ball' Battery With 5x Faster Charging Speed (digitaltrends.com)
Heart44 writes: A number of outlets are reporting a Samsung laboratory breakthrough allowing smaller and faster charging lithium-ion batteries using three-dimensional graphene. Digital Trends reports: "Scientists created a 'graphene ball' coating for use inside a regular li-ion cell, which has the effect of increasing the overall capacity by up to 45 percent and speeding up charging by five times. If your phone charges up in 90 minutes now, that number will tumble to just 18 minutes if the cell inside has been given a graphene ball boost. What's more, this doesn't seem to affect the cell's lifespan, with the team claiming that after 500 cycles, the enhanced battery still had a 78 percent charge retention. The graphene coating improves the stability and conductivity of the battery's cathode and electrode, so it's able to take the rigors of fast charging with fewer downsides." The technical paper describing how the graphene ball works and how it's produced is published in the journal Nature.
From TFA: "Each GB is composed of a SiO x nanoparticle center and surrounding graphene layers, constituting a three-dimensional (3D) popcorn-like structure." Buckyballs (or rather Buckminsterfullerene) is C60, consisting of 60 Carbon atoms in a ball-like structure. So, totally dissimilar.
Sig?
Buckyballs are much smaller. These siloxane lumps are 10-20x larger than a typical buckyball. You'll probably find that the vapour deposition will result in several sheets of graphene depositing at different points and growing together into a not-quite-perfect coating. Not enough to break the functionality, but enough to disqualify it from the comparatively geometrically pure buckyballs, which have mind-boggling symmetry.
You're right, batteries are hard, we should just give up. Lead acid was good enough for our grandparents, it's good enough for us!
I'm charging my S8+ ~1.5 a day. 500 charges means that after just 1 year the battery is at 78% of capacity, What happens after 1.5 years?
Even for those who charge only once a day, 500 charges is ~1.5 years, which is less than the common 2-year lifespan of the phone.
Increasing the battery density probably won't help either, as manufacturers will again make thinner phones instead of increasing capacity.
They haven't worked out how to integrate a blockchain yet.
Confucius say, "Find worm in apple - bad. Find half a worm - worse."
They have come to the market. Why do you think that we have personal computers in our pockets that allow for a nearly full day of computing, that are reliable enough for product makers to directly solder them to the electronic devices, and normally last past the expected device lifetime.
The problem is perception.
1. Batteries are boring. they are not flashy, they don't make your apps directly run faster. They just make the cool things other technology uses last longer.
2. Technology is using more power. My Phone, has an Ultra High resolution display, Gigs of ram, a fast processor comparable to some modern laptops and desktops. Sensors and Gyroscopes... and this is a normal consumer devices, Compared to 10 years ago, where we had a flip phone with a 100x100 pixel display (color is optional) And it made phone calls and texts, and a cheap camera, where most people had a separate camera. All this stuff uses more power. So device makers are sticking to a 20 hours battery under normal use. If the battery can last longer, then they put more stuff and speed to the device.
3. We forget the problems of the past. We needed user replaceable batteries in the past, because they would last an average of about a year. Meaning we needed to replace them after a while while our device is still relatively new.
4. We use devices more on battery. Old cell phone usage was just to make calls and texting, but for the most part the device is in our pocket, or charging. Today we as a culture are in front of little glowing squares. We are using these devices all day. Even for laptops, when I have a few hours of meeting I don't bother bringing my power cord, because I know my laptop will last the duration. Back 10 years ago, you always brought your power plug for your laptop, because the device may last 3 hours that is with the screen dimmed all the way down and no apps running. Today I can use my more powerful laptop for the 3 hours quite normally, granted if I go overboard it can vary.
5. Each breakthrough takes years to get out, make sure it works and is safe and reliable, and a fit for such devices. So if it takes 5 years to get to the market. the 3x improvement is the 3x improvement from 5 years ago, and with the other improvements going on when it gets released it is only 1.25x faster. Battery technology doesn't follow Moore's Law it is more linear. So we don't get the same awe effect that we do when we see new technology.
If something is so important that you feel the need to post it on the internet... It probably isn't that important.
For the past decade-and-a-half or so I have read at least 80 reports of 'Breakthrough in Battery Technology'
All of them claimed to boost battery power, longer lasting battery, and faster charging time
If they are so much better, as claimed, I think the market would welcome them with open arms
Funny thing is no one bring them onto the market
Why is that??
They ARE bringing them to market.
It's not that batteries haven't drastically improved. They have.
The TRUE problem is the telemetry-riddled always-listening power sucking shit they're bolted to.
Here's a perfect example of KISS design maximizing efficiency; the Nokia "candy bar" phone. Fucking thing would last a week on standby, with some obscene amount of talk hours. Smartphone charges could probably last two weeks or more, IF they were not being used as personal video streaming devices. People demand a smartphone does everything for them now. Turn off features, cut out 90% of the extraneous bullshit, and (spoiler alert!) battery life would likely increase ten-fold.
I have some ni-cads batteries here you can try out against a modern battery and then you can tell me they haven't gotten any better.
Buckballs are the entire family, Buckminsterfullerene is specifically C60 but the family contains C20 through C2160 (and probably larger).
There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
Here's the thing: I must've heard of a new revolutionary battery technology at least once a month for the past 5 years or so.
The problem is always mass production.
Can Samsung churn out batteries with graphene balls for all devices that currently use Li-po batteries at similar costs and similar speeds?
If not, then it won't be replacing anything. And this story is yet another one for the archives.
1) They'll just make the battery smaller, I'd guess. Why would a company whose job it is to sell hardware want that hardware to disrupt their product cycle (cynical, I know)?
2) DON'T charge you battery to 100% or discharge to near-zero. I don't have links, but there are some neat articles around the internet regarding the chemistry of li-ion batteries and charge/discharge. It's shown that charging to ~80% and discharging to only ~40% allows the battery to last far far longer; that's what I do, and so far it's working out very well.
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I am missing your counter argument. My point is new batteries are better, we just don't see it because popular devices use more power. I am not saying you need a popular smart phone, just that technology for these phones advance in a way to allow a full day of usage as part of their design requirement, if the design runs longer then a full day, then that means they can probably put more features in. If battery length is important, you can make such a choice.
Or is it that you are taking the friendly jabs at your phone at work or school personally.
If something is so important that you feel the need to post it on the internet... It probably isn't that important.