Enevate HD-Energy Battery – 90% Charge In 15 Minutes (4C Rate)

NOV 6 2015 BY MARK KANE 33

Enevate: 3 Ah, 107 Wh

Enevate: 3 Ah, 10.7 Wh

Enevate, just few weeks after its $30 million infusion, announced that its lithium-ion batteries not only are able to store 300 Wh per kg, but also will charge in 15 minutes to 90% capacity (about 4C).

We still need to figure out where to sign up to buy the stuff, but in the press release everything seems to work just fine.

If only Enevate will be able to deliver the product at the right price, these could be excellent batteries for… everything? From smartphones to electric buses.

“Enevate Corporation, a technology leader in Lithium-ion (Li-ion) batteries, announces ultrafast charging for their batteries with HD-Energy® Technology. Enevate’s ultrafast charging feature has been demonstrated to provide a 90% charge in 15 minutes (4C charge rate) while increasing energy, capacity and performance when compared to today’s conventional Li-ion batteries.

Headquartered in Irvine, California, Enevate has developed advanced Li-ion batteries based on new materials and cell designs with significantly higher volumetric and gravimetric energy density in thinner and lighter form factors, and with significantly higher charging rates than current conventional Li-ion batteries. Enevate’s novel HD-Energy Technology utilizes silicon-dominant composite anodes for rechargeable Li-ion polymer batteries which dramatically increases energy density by 25-50% over conventional graphite anode cells – giving over a decade of technology advancement as compared to the current rate of improvement of Li-ion technology. Enevate’s new batteries enable smartphones, tablets, ultra-thin notebook PCs, and drones with longer runtimes in less space and weight.”

For example, a 3000 mAh Enevate battery with HD-Energy Technology using a 12 Amp charge (4C rate) achieves 90% capacity in 15 minutes with no degradation in energy or capacity. Using a 6 Amp charge (2C rate), the same 3000mAh Enevate battery charges to 90% in 25 minutes.

Brian Wong, CEO of Enevate said:

“Enevate continues to add new performance tiers to our technology. Ultrafast charging is another Enevate breakthrough. Now you can charge your phone in the time it takes to get a cup of coffee – and also have more energy and capacity too.”

Dr. Benjamin Park, Founder and CTO of Enevate said:

“The charge rate of Enevate batteries can be 5-10 times faster than conventional batteries due to multiple reasons, including faster kinetics of silicon. Enevate’s unique silicon Li-ion batteries deliver both ultrafast charging and high energy density at the same time. The batteries are resistant to lithium plating during charging which allows for cycle life to be maintained even with high charge rates.”

Jarvis Tou, Executive Vice President of Marketing and Products at Enevate said:

“Our customers have found ultrafast charging at this speed to be highly valuable to differentiate their mobile devices and are excited to quickly implement this feature into their products. Enevate’s batteries and technology changes how people will use their mobile devices while enhancing their device capabilities.”

Categories: Battery Tech, Charging


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33 Comments on "Enevate HD-Energy Battery – 90% Charge In 15 Minutes (4C Rate)"

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So obvious question. Cost per Wh and how many cycles?

Cost per kWh is almost answered. If you produce it in high quantities, every (lithium ion)cell costs about the same. And if you can store lots of energy per cell, you get a low price per kWh. But cycle life might be interesting.

R.S said:

“Cost per kWh is almost answered. If you produce it in high quantities, every (lithium ion)cell costs about the same.”


There are a variety of different li-ion cell types, depending on application, with different chemistries and different internal structures. Even within cells for EVs, there are differences in characteristics needed; PHEVs need high power density cells, while BEVs need high energy density cells.


Furthermore, if batteries all cost the same per kWh, then customers wouldn’t be lining up to buy LG Chem’s new, cheaper batteries.

Note that the article didn’t mention EVs. That’s because $500/kWh is cheap enough for phones, as it amounts to only $6 for a 12Wh battery, and this rapid charging advantage will easily fetch $30 retail.

Smartphones will always be the primary market for new battery advances. $1000/kWh or even $1500/kWh will be acceptable for large density advances in that market (e.g. Sakti3, though that may be a bust).

EVs will always get these advances much later, when the new tech achieves a 5-10x cost reduction.

Yeah, cost is the question. Cell phone batteries have more advanced performance than car batteries since they can be more expensive per kwh since they don’t hold that many kwh’s in the first place.

Since the construction and materials are different between batteries in consumer products and EV’s, I’d think there is limited ‘cross-interest’.

The article didn’t make this distinction, that’s why I made it.

Really, all these promises of new and exciting battery technology…. it gets boring. Lots of hyperbole with no scientific content.
I hate to keep saying this but Elon Musk said, deliver a battery we can test, otherwise go bugger off, or something to that effect.

You summarized Elon’s quote rather succinctly, if a bit more rudely than he put it; congratulations. 🙂

Here’s the full quote:

“My top advice really for anyone who says they’ve got some breakthrough battery technologies, please send us a sample cell, okay, don’t send us PowerPoint. Just send us one cell that works with all appropriate caveats; that would be great. That… sorts out the nonsense and the claims that aren’t actually true. Talk is super cheap; the battery industry has to have more B.S. in it than any industry I’ve ever encountered. It’s insane.” — Elon Musk, Nov. 5, 2014

I hear that little old lady shouting out again…”Where’s the beef!”


We shall see…

Clara Peller I believe.

You believe correctly.

Man, that was in the first half of the 1980s… I recently stumbled over a cameo of her in the 1985 movie “The Stuff” (I gave it a 30th anniversary rerun at halloween).

If I had a Nickle everytime….

…some Asian chap promised me a battery breakthrough?

What’s the charging efficiency, how much heat needs to get cooled away, while charging at 4C?

Since they are claiming a very fast recharge rate the efficiency has to be fairly high unless they are using active cooling.

The number of cycles is the key parameter, on which they are silent.

“Using a 6 Amp charge (2C rate), the same 3000mAh Enevate battery charges to 90% in 25 minutes.“

25 minutes of 6000mA is (25/60)*6000=2500mAh
90% of 3000mAh is 2700mAh

So with 2500mAh they gave the battery a 2700mAh charge… THIS BATTERY CAN CREATE ENERGY!!!! They’ve solved perpetual motion!

probably because like all batteries past ~80-85% it cant take full 2C…

Only solution is they where alreay charging at 2,2 C or a even higher C rate before, but the exec said: “No, use “2C” and 4C that sounds nicer and we can claim double the performance. Who calculates the numbers anyway.” Lol

“Perpetual Motion”.

Well in the sense that the slower charge rate is more efficacious than the faster charger rate, and makes less heat, well then yes.

But it is a confusion on your part of cause and effect.

Rain makes the grass grow, but growing grass doesn’t necessarily make more rain.

If I can charge 3000mAh with 2700mAh, then the battery has created 300mAh. If I charge another battery with the first one, I can create another 300mAh. I could use that 300mAh to drive a small motor, while continuing to charge back and forth. So perpetual motion.

I’m of course kidding, I know this battery doesn’t create energy. There PR department does however create hot air.

Sorry, as I tried to hint at before, it is you that is coming up with the funny numbers. You are assuming all the juice is getting into the battery, when at ‘4C’ a good chunk of juice is just making the battery hot.

The battery is less efficient charging if you double the charge rate. No big insight there.

Their energy density is nothing special. My phone already has a 3000 mAh battery. If they were showing off a 6000 mAh battery in the same size, I would be impressed.

The manufacturer of your cell phone can afford to buy high energy density batteries at a per-kWh price much higher than an EV maker, because your phone only needs one small battery cell, with a capacity of only a small fraction of 1 kWh.

Contrariwise, EV makers need a large amount of battery capacity for every car, and need the cheapest cells per kWh possible to be competitive.

Don’t make the mistake of thinking that just because the industry standard for EVs is less than 200 wh/kg, that means nobody is selling batteries with, let’s say, 300 wh/kg.

And how much does this 3000 mAh in your phone weigh? This is about specific capacity, so you’ll have to know that before you can compare your phone battery to this product.

Have they solved the cracks that appear in silicon anodes after repeated charges? No one else has. It’s the main problem with using silicon, it degrades very quickly.

“6 batteries ahead of us Jimmy!”

Grandma, you’re not helping.

Silicon has an anode has the problem of huge swelling which quickly leads to failure.

I was surprised to find a quote on GCC from Dr. John Goodenough praising Enervate. Dr. Goodenough developed the cathode that made LIBs practical and in his 90s is researching a better anode. He has warned about charlatans promising a better battery taking money from investors.

“Enevate is using a unique technical approach for silicon anodes that is truly different and innovative to deliver high energy density Li-ion batteries. I’m impressed that their technology and process is practical, highly manufacturable, and can be sufficiently inexpensive for high volume consumer electronics”.
—Dr. John Goodenough, Professor of Material Science at University of Texas-Austin, Enevate Technical Advisory Board

Practical, manfacturable & inexpensive sound encouraging. No mention of cycle life, which might explain his reference to consumer electronics that are often obsolete after 18 months to 2 years.

“Enervate” you said
Totally agree!
Show me the stuff and then I’ll applaud.
Not the other way around.

Cool, looking forward to charge my Smartphone or laptop within 15 minutes soon 🙂

The real question is what are the performance specs after 2000 charge/discharge cycles. 90% charge in 15 minutes is great but completely useless if your battery capacity drops to 50% after 100 cycles.

I really wish the publisher of this site would hold off publishing every outrageous claim of every battery company out there until it’s been proven by independent third party testing.

No, it’s fine the way it is. He set them up and we knock them down. It’s better than the press releases you see at other sites.

Looks promi$$ing..