Huawei Unveils Batteries Capable Of Ultra Fast Charging

DEC 16 2015 BY MARK KANE 48



Huawei’s Watt Lab unveiled at the 56th Battery Symposium in Japan some new quick charging lithium-ion batteries.

The Chinese company said that quick charge can be done in minutes – about 10 times faster than current batteries, although in the demonstration videos you can spot that a much larger charger is needed.

A 600 mAh smartphone battery was charged in 2 minutes to 68%, while the larger 3,000 mAh charged in 5 minutes to 48% (see videos below).

Interesting is that electric vehicles were mentioned as one of many applications for those new batteries (for 50% five minutes recharge we would need over 500 kW in the case of 90 kWh Tesla or over 144 kW in case of 24 kWh LEAF).

“Watt Lab, which belongs to the Central Research Institute at Huawei Technology Corporation Limited, unveiled their new quick charging lithium-ion batteries at the 56th Battery Symposium in Japan. Using next generation technology, these new batteries have achieved a charging speed 10 times faster than that of normal batteries, reaching about 50% capacity in mere minutes.

Huawei presented videos of the two types of quick charging lithium-ion batteries: one battery with a 600 mAh capacity that can be charged to 68% capacity in two minutes; and another with a 3000 mAh capacity and an energy density above 620 Wh/L, which can be charged to 48% capacity in five minutes to allow ten hours of phone call on Huawei mobile phones. These quick charging batteries underwent many rounds of testing, and have been certified by Huawei’s terminal test department.

According to Huawei, the company bonded heteroatoms to the molecule of graphite in anode, which could be a catalyst for the capture and transmission of lithium through carbon bonds. Huawei stated that the heteroatoms increase the charging speed of batteries without decreasing energy density or battery life.

Huawei is confident that this breakthrough in quick charging batteries will lead to a new revolution in electronic devices, especially with regard to mobile phones, electric vehicles, wearable devices, and mobile power supplies. Soon, we will all be able to charge our batteries to full power in the time it takes to grab a coffee!

Huawei’s Watt Lab works closely with industry partners to promote technological development and pursue a new energy era. Watt Lab specifically focuses on the technical development of energy storage to support a better connected world via sufficient energy.”

Demo 1 (600 mAh capacity, charged to 68% capacity in two minutes):

Demo 2 (3000 mAh capacity, charged to 48% capacity in five minutes):

Categories: Battery Tech


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48 Comments on "Huawei Unveils Batteries Capable Of Ultra Fast Charging"

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When do we get to WARP speed so we can charge up EV’s quicker than putting gas in a tank ?

yaya i want to fly direct door to door!

I’d rather have a small box that pulls in energy from other dimensions and converts it into electricity. Solid state of course. maybe use that electricity for warp speeds.

Something like an energon cube….


The article mentions the power requirements for this charger. To manage what you ask for, you would have to increase those power requirements by 10x.

So before you ask again when this will happen, I would first like to direct your attention to the fact that you would have to be comfortable holding 10,000 volts in your hand before that ever happened. I’m sure we’ll have volunteers just lining up for *that* opportunity.

In the meantime, 5 minutes to 50% is fine by me. That’s not even enough time for a bathroom break while you wait. Which, coincidentally, also happens to be a necessary interruption to your dreams of an EV road trip.

” I would first like to direct your attention to the fact that you would have to be comfortable holding 10,000 volts in your hand before that ever happened.”

At 500kw (the power mentioned for a 5 minute Tesla above), you would need 1500 volts at 200 amps three phase. 200 amps is a common limit for newly constructed houses. At 400 amps, find half that.

If you have fast charged, you have already held 440 volts in your sweaty little hands. See:

If you want to do the math.

440 volts is already quite capable of producing death. Workers on 440v equipment are recommended to wear goggles on the idea that an arc flash could blind you.

If you are in the States, the utility industry isn’t going to change much due to EV’s.

Even superchargers use standard utility connections.

Southern Ontario is going to move to somewhat fixed delivery charges, but their more than generous 80 to 40 cents/kwh solar panel subsidy has greatly increased rates for everyone else, even to the point of making one McMaster student I met at the Mississauga service center of Tesla very upset.

The utility would be more than happy to supply a higher voltage since they don’t have to pay for the loses that they normally have in their transformers when they have to go all the way down to 400 volts. Buying higher voltage like 11000 Volts is always cheaper than buying at 400 Volts that is why factories buy high voltage.

Simply not true in my country PriusM, and, in fact, it is LESS true NOW than say 80 years ago. 80 years ago, almost all customers over 100 kw took delivery at medium voltage (2400-35,000 volts). Nowadays, it is not uncommon for customers in the 1500 kw range to take delivery at low voltage, simply because they don’t want to pay for the added switchgear costs and complication. Now, some customers do: One (but only 1) local supermarket chain pays for 23 KV (its within the range of MV above, but my particular utility considers this SubTransmission voltage – their policy). BUt some markets take delivery at 13000 volts since although the discount isn’t as great the complications or line relocating problems are not there. Now, me, If I were using 500 kw of load I’d purchase the juice at MV since to me it would be worth getting the discount, but even TESLA in all their supercharger stations at least in my vicinity have all taken delivery at low voltages , specifically 277Y480. And probably 230Y400 by you. But Wallmart, the largest employer in America currently, has super big stores with either 1500-2000 kw utility supplied transformers, since they… Read more »

As far as I’m concerned, current batteries can charge plenty fast. The real issue, especially with EVs, isn’t the rate at which the battery can charge, but rather the charger itself. Fast chargers are just so expensive and draw so much power during a short time. With Tesla’s supercharger stations we’re already pretty close to the maximum power you can put through a charge port without massively increasing it’s size (as well as the cable). They are already having to make the cables liquid cooled because of the heat build up.

Need to kick the voltage up to get the amps down along w/the cable sizes.

Let’s say you plug in 800 VDC how are you going to make it 400 VDC to charge the pack? Switching regulators just regulate, it is unlikely EV makers will switch to 800 volt packs.

DC to DC converter.

SJC – Porche has announced it’s Mission E all-electric supercar will have 800VDC using existing CCS Combo Combined Charging System plugs and sockets. It’s trying to convince BMW, Daimler, VW Audi Group etc to adopt the same. Even better that each CCS revision is fully backwards compatible too.

And there are wireless systems charging at 100kW. Who knows how far this technology can go.

Thats not really true. Most people seem to think that those 120 kw is really much, but in fact it isn’t. Its just 300 Amps. After 5 minutes of googling, I found a 1.1 cm diameter water-cooled cable(with cooling and insulation 2.3 cm) being able to transport up to 1800 amps continuously. Thats 750kw! On the Plug side, I have found several industrial ones, that can be plugged easily by hand, with ratings up to 1200A, still enough for 480 kw.
So it really isn’t an issue from the connector side and since the costs of fast charging stations strongly depend on the power electronics, its no difference if you build two with 480 kW, or 8 with 120kW. When the station is fully used, charging for all will take the same, if it isn’t the person using it gets faster on the road.

750KW is fine for the cable, but it would require a much large contact surface to make it work reliably.

“As far as I’m concerned, current batteries can charge plenty fast.”

Your opinion is wrong.

Yup, you are also wrong. General, sweeping statements are usually wrong. Context is king.

Current battery technology works fine for the majority of people reading this blog, but to grow EV adoption we need even better batteries.

All generalizations are wrong.

including yours? LOL

3000mah is close to the cell size Tesla uses and a ~50% charge in 5 minutes definitely would be a dramatic improvement. Wonder how practical 500KW chargers are for use by consumers but 350KW chargers are already envisioned by the CharIN EV initiative.

Recently, Google switched from HTC to Huawei to make its new Nexus 6P smartphone. Is this also a harbinger of things to come? If Google decides to start making EVs, will Huawei’s battery-charging tech and other tech will find its way into Google’s future EV, kinda like LG’s tech is found throughout the upcoming Bolt?

And the key question is, what is the cycle life?

Other key question is why is that battery only 600mAh? The phone shown uses a much larger battery, typically > 2000mAh.

Could this fancy quick charge battery be severely capacity-limited (i.e. reduced energy density)?

I prefer a battery that can take me 3 times as far, thus 3000 km per charge. This way I can charge it 5 times a year. and mostly at night while I am sleeping.

Indeed. More capacity is far more important than charge time. The more capacity we have, the less we’ll be concerned with charging it quickly.

The more capacity, the more important to have fast charge to fill it.

Agreed. If the battery is large enough then charge time will be largely irrelevant.
Even if it takes you an hour to charge the battery, if you only need to do it once for a whole day of driving it’s very much acceptable.

Fast charge batteries are helpful because if they can truly charge very quickly without degradation or safety issues, the charging infrastructure is simply the next design challenge. There are potential solutions, including stationary storage buffer batteries which are already used with some DC Quick Chargers to mitigate utility “demand charges” (a few thousand dollars a month or more).

Flywheel storage would also potentially viable as a way to flatten the draw from the grid (or local solar arrays) and then charge an EV battery more quickly.

Tesla has already solved part of the cable problem with liquid cooled cables as DM points out. Even with a low tech approach like two cables, the solution hinges mostly on bringing costs down. (with twice the vehicle throughput per station, it’s not as big a problem as might initially be imagined to use two chargers for one car)

Cost and scale are issues to be solved, but it is not impossible, there is a pathway.

Was wondering if any of those fancy hoover boards with a built-in “space heater/fireworks” use these new batteries 😉

Anyone starting to worry about our electric infrastructure yet? We’re talking about 500KW charging for vehicles. Imagine a future fueling station with 32 charging stations (some Sheetz in the east have 32 pumps), each running at 500KW. That’s a LOT of juice! Just for one fueling station, not to mention the one across the street. Not saying it’s good or bad, just sometimes it really hits you.

1) If people could fill up with gasoline overnight in their garages, there would be no need for 32 pumps at gas stations.
2) When batteries get cheap enough for mass EV adoption, they’ll be cheap enough to be used to buffer energy at recharging centers.

That s right! 🙂

You could also see it the way, with quicker charging, you need less parallel stalls. Either you have 30 stalls with 150 kW each, or 10 stalls with 500 kW each, both will be able to charge the same number of cars per hour.

“anyone worried about infrastructure?” Ed, I’m not. A relatively efficient EV (say, a Chevy VOlt) uses around 300 kwh per month assuming 9-10,000 miles EV driving per year. That additional usage is more than compensated by the wholesale conversion to CFL’s and LED lighting in the states, and also the more efficient airconditioning systems over the past few decades. So even if EVERYONE had an ev, there would be no trouble. “500 kw is alot for a car”. Yeah, it is, but then you’ll never see it directly since no one could afford the demand charges. What you WILL see, assuming 500 kw charging rate to the car – is a charger facility taking in 30 kw – 24 hours a day – into big stationary battery packs, and then DUMPING the 500 kw into the car. For this to actually occur, batteries will have to become much cheaper than they are today. So the Utility will bill the car charging facility for a 30 kw demand, not 500 kw. Most people will avoid the issue, since 3, 5 or 7 kw charging in the home is all the charging people will need even if EVERYONE had EV’s which they… Read more »

So, 80% charge in 3 minutes (10x faster than now @ 30 minutes). That’s already faster than a gas station.

Yeah! And don’t forget that one can also home charge, work charge and in a non-too-far future solar-charge on the road 😉

I’m sure that this fast charging battery doesn’t have high energy density. It’s hard to have both. Now envia has 400wh/kg energy density battery but with short life. Some electric buses has 450kw charging power but with 2 cables.

Batteries that can handle 4C charging will probably be “good enough” for EVs for the next 10 or 15 years. 4C would be a 15 minute charge, and I think its reasonable goal to achieve from a technical standpoint. The difficult part would be recharging a 100kWh battery at 4C – that’s 400kW, or 1,000A at 400V. How do you get it from the grid into the car with a flexible cable, and still manage safety?

4C is all about cooling.

Some PEVs can regen at 4C rate. Volt can do that for sure. But it has a “fail safe” system to make sure the battery isn’t overheated.

“When do we get to WARP speed so we can charge up EV’s quicker than putting gas in a tank ?”

At 5 minutes, you are going to be as fast or faster than any real person filling up a tank other than a college student headed for a party with free food and beer.

Anyone who has ever waited in a line for the gas pump can attest to that.

Anyone who waited in a line of more than 1 car to fill up, used the wrong time of day. Or he made a long highway trip and fueling now was inevitable.

I don’t understand why the folks here, who are so ready to believe that “left handed carbon nanotube chemistry” can yield higher capacity batteries are so down on fast charging innovations. Breakthroughs in chemistry are far less likely than fast charging advances, and yet fast charging can make even small batteries useful.

Hea? Breaktrough in chemistry leads to fast charging (C >> 10).

Even finicky Tesla S drivers seem satisfied with 120 kw, (or 60 kw if the adjacent space is being used), and then, even at 120 kw, you don’t get that for the duration of the charging session.

So the easy thing would be to ‘linearize’ the charging rate, in other words, make the car take 120 kw for the duration.

If the Big Experts are planning for 240 kw, then, combined with a constant 240 kw draw for the duration, would drastically shorten the recharge time for all but the very largest of batteries.

Even 500 kwh that AUDI claims they could conceivably do would only be 2 1/2 hours or so assuming a few heating losses.

So a leisurely lunch or dinner for the next 1200 miles? Or even a quick nap at a motel, that length of time is not so horribly awfully long a wait.

Bill, the 500kWh that Audi claims are not to be understood as to be onboard of a BEV but rather in a stationary application for grid or home storage during a “second life” for a pile of battery veterans after 100,000 miles, or so in BEVs. If you go to and key in “Audi 500kWh” you will find the appropriate article in English, dated mid of November. Btw, I appreciate your contributions to this forum – have a nice xmas.

Merry Christmas to you as well…

I think we were reading 2 different things. The blurb I read was a ‘conceptual extention’, not a bunch of used real-life existing batteries.

I have no problem visualizing a 500 kwh vehicle, seeing as BYD already makes them.

Lower cost batteries will cause more larger batteries to be sold…. so if they’re cheap enough, why not?