Huawei Develops New Lithium-Ion Batteries That Charge Crazy Fast, Possibly Ten Times As Quick As Nor
34 replies, posted
[url]http://www.androidpolice.com/2015/11/13/huawei-develops-new-lithium-ion-batteries-that-charge-crazy-fast-possibly-ten-times-as-quick-as-normal-batteries/[/url]
[quote=Android Police]At the 56th Battery Symposium in Japan, Huawei showed off its next generation of quick charging batteries. Huh? Yes, there's a Battery Symposium in Japan, and yes, there have been fifty-five of them in the past. Stay focused here.
Huawei says its new lithium-ion batteries can achieve charging speeds ten times faster than normal batteries.
The company has shared videos of two types of batteries. One has a 600mAh capacity and can reach 68% capacity in two minutes.
The larger battery has a capacity of 3,000mAh. It apparently takes just five minutes to reach 48%.[/quote]
[QUOTE=wickedplayer494;49113128][url]http://www.androidpolice.com/2015/11/13/huawei-develops-new-lithium-ion-batteries-that-charge-crazy-fast-possibly-ten-times-as-quick-as-normal-batteries/[/url][/QUOTE]
Wow, that's some crazy new tech. Does the battery keep its charge as long as normal batteries, though?
I've yet to see any of these 'revolutionary' batteries actually come to market. We've been promised super batteries for years now dammit.
You can't expect something in a laboratory to directly work in the field. There's more to it.
[QUOTE=FlandersNed;49113134]Wow, that's some crazy new tech. Does the battery keep its charge as long as normal batteries, though?[/QUOTE]
The one is 3000 mAh. Which is around standard cell phone, laptop, and power tool batteries. So yeah. The real question is how lifespan holds up. You can charge regular cells stupidly fast. They will just eventually ruin faster.
[QUOTE=maurits150;49113167]I've yet to see any of these 'revolutionary' batteries actually come to market. We've been promised super batteries for years now dammit.[/QUOTE]
Supercapacitors when?
[QUOTE=maurits150;49113167]I've yet to see any of these 'revolutionary' batteries actually come to market. We've been promised super batteries for years now dammit.[/QUOTE]
Most of them aren't very good. They improve one area at a cost of a severe impact on another area.
We have no mention of efficiency, cycling capabilities, energy density or power output here. Without any real statistics on it you can probably just assume it's vaporware until they decide to release real statistics.
I remember the articles also stating that this effect only works for a half-dozen recharges before it's negligible.
[QUOTE=Mega1mpact;49113401]Supercapacitors when?[/QUOTE]
ultracaps are very expensive, and have an extremely low relative storage capacity per volume and per weight. Not to mention that they passively dissipate energy. Sure they have millions of charge cycles, and can unload all their power in seconds because of low internal resistances, but they are inferior for actually storing energy.
[QUOTE=Bradyns;49113741]I remember the articles also stating that this effect only works for a half-dozen recharges before it's negligible.[/QUOTE]
And this is why this isn't important. We already have fast enough charging for batteries. What we need more of is charge cycles, and cold weather performance.
[QUOTE=maurits150;49113167]I've yet to see any of these 'revolutionary' batteries actually come to market. We've been promised super batteries for years now dammit.[/QUOTE]
These things take about 10 years to go from lab beaker to full scale commercial development. They have to get it to be reliable, last a long time, and then they have to figure out how to build it
I personally think my phone charges fast enough. What I'd like to have is longer battery life.
[QUOTE=maurits150;49113167]I've yet to see any of these 'revolutionary' batteries actually come to market. We've been promised super batteries for years now dammit.[/QUOTE]
These Panasonic cells have double the capacity per-weight of a Li-Po cell, and are fairly recent:
[url]http://www.amazon.com/NCR18650B-3400mAh-Rechargeable-Battery-Panasonic/dp/B00DHXY72O[/url]
[QUOTE=maurits150;49113167]I've yet to see any of these 'revolutionary' batteries actually come to market. We've been promised super batteries for years now dammit.[/QUOTE]
Yeah.
I have a wireless vacuum cleaner that charges for hours and that gives it 35 minutes of battery life. I bought it last week. It's 2015 dammit! Why do batteries still suck massively?
[QUOTE=maurits150;49113167]I've yet to see any of these 'revolutionary' batteries actually come to market. We've been promised super batteries for years now dammit.[/QUOTE]
The reasons: either the tech sucks, but opens the door to others or economies of scale is a bitch
[QUOTE=maurits150;49113167]I've yet to see any of these 'revolutionary' batteries actually come to market. We've been promised super batteries for years now dammit.[/QUOTE]Haven't batteries gotten increasingly better and better??
Charging a 3,000 mAh battery to 48% in 5 minutes requires a current of 16 A. I am skeptical.
[QUOTE=_Axel;49116029]I personally think my phone charges fast enough. What I'd like to have is longer battery life.[/QUOTE]
with longer battery life, you'll need faster recharge times or it might take you days to charge if you want your phone to last for days too
[QUOTE=Headhumpy;49121659]Charging a 3,000 mAh battery to 48% in 5 minutes requires a current of 16 A. I am skeptical.[/QUOTE]
What is the problem? USB C supports 5A at 20V.
[QUOTE=AGMadsAG;49121936]What is the problem? USB C supports 5A at 20V.[/QUOTE]
Putting anything more than 4.2V through a lithium ion battery during charging shortens its life. Putting way more than that plates the graphite electrode with lithium, followed by short-circuit and an explosion.
[QUOTE=Headhumpy;49122004]Putting anything more than 4.2V through a lithium ion battery during charging shortens its life. Putting way more than that plates the graphite electrode with lithium, followed by short-circuit and an explosion.[/QUOTE]
You can step-down that voltage externally, you know.
[QUOTE=Zero-Point;49122475]You can step-down that voltage externally, you know.[/QUOTE]
It still doesn't change the fact that you need to pass a certain number of electrons through the battery in order to charge it, and if you want to do that within a certain period of time, you'll need to draw a lot of current. Notice how the battery was taken out of the phone and put into a charger that was plugged directly into the mains.
[QUOTE=Headhumpy;49122865]It still doesn't change the fact that you need to pass a certain number of electrons through the battery in order to charge it, and if you want to do that within a certain period of time, you'll need to draw a lot of current. Notice how the battery was taken out of the phone and put into a charger that was plugged directly into the mains.[/QUOTE]
Yes? 20V * 5V is 100W.
4.2 V * 16A is 67.2W
Sorry for the late reply.
Does this mean they will explode ten times as spectacularly?
[QUOTE=Zenreon117;49880603]Does this mean they will explode ten times as spectacularly?[/QUOTE]
I wonder if Trump supports using these batteries as torture devices
[QUOTE=AGMadsAG;49880581]Yes? 20V * 5V is 100W.
4.2 V * 16A is 67.2W
Sorry for the late reply.[/QUOTE]
I'm not sure what you're trying to say here. Anyway I've since read up more and it is possible to modify the battery to accept higher charge/discharge rates, but much of this improvement applies to charging the battery to somewhere around 70% charge. Saturation charge still takes quite a long time.
Sounds terrifying, normal batteries are unstable enough
[QUOTE=J!NX;49880615]I wonder if Trump supports using these batteries as torture devices[/QUOTE]
Wystan's already buying them up for this express purpose.
[QUOTE=Headhumpy;49880963]I'm not sure what you're trying to say here. Anyway I've since read up more and it is possible to modify the battery to accept higher charge/discharge rates, but much of this improvement applies to charging the battery to somewhere around 70% charge. Saturation charge still takes quite a long time.[/QUOTE]
I am saying that using a buck converter in the appliance, you could go from 20V @ 5A to 5V at 20A (not accounting for losses).
[QUOTE=AGMadsAG;49881150]I am saying that using a buck converter in the appliance, you could go from 20V @ 5A to 5V at 20A (not accounting for losses).[/QUOTE]
My point was not whether it was possible to generate such current, my point was whether the battery could survive such a high current at all, but as it turns out it is possible, but not as revolutionary as one might think.
[QUOTE=Headhumpy;49881176]My point was not whether it was possible to generate such current, my point was whether the battery could survive such a high current at all, but as it turns out it is possible, but not as revolutionary as one might think.[/QUOTE]
Okay :) Sorry for misunderstanding then, your first comment about requiring current just confused me.
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