Titanium-based batteries charge in two minutes, last 20 years

Titanium-based batteries charge in two minutes, last 20 years

University develops what could be a huge game-changer in battery technology.

In what could be a game-changer in battery development, with a potentially enormous impact on the market for electric powered motor vehicles, scientists at Singapore’s Nanyang Technology University (NTU) have developed ultra-fast charging batteries that can be recharged up to 70% in only two minutes. What’s more, the university claims that these new generation batteries also have a long lifespan of over 20 years - more than ten times that of existing lithium-ion batteries.

This breakthrough could have an enormous impact on all industries, especially for electric vehicles, where consumers are put off by the long recharge times and limited battery life. With this new technology, drivers of electric vehicles could save tens of thousands on battery replacement costs and could recharge their cars in a matter of minutes.

“Electric cars will be able to increase their range dramatically, with just five minutes of charging, which is on par with the time needed to pump petrol for current cars,” says its inventor - Associate Professor Chen Xiaodong from NTU’s School of Materials Science and Engineering.

The 10,000-cycle life of the new battery also mean that drivers of electric vehicles would save on the cost of battery replacements, which could cost over US$5,000 each.

This could also provide a good shot in the arm for mines producing titanium dioxide, although it could be seriously problematic for companies focusing on graphite should the technology be fully proven on a commercial scale and brought into production quickly - as NTU claims it could be.

Commonly used in mobile phones, tablets, and in electric vehicles, rechargeable lithium-ion batteries usually last about 500 recharge cycles. This is equivalent to two to three years of typical use, with each cycle taking about two hours for the battery to be fully charged.

“Equally important, we can now drastically cut down the toxic waste generated by disposed batteries, since our batteries last ten times longer than the current generation of lithium-ion batteries,” adds Prof Chen.

The process
In the new NTU-developed battery, the traditional graphite used for the anode (negative pole) in lithium-ion batteries is replaced with a new gel material made from readily available titanium dioxide which is mostly used in pigments and sunscreen lotions.

The NTU team has found a way to transform the titanium dioxide into tiny nanotubes, which are a thousand times thinner than the diameter of a human hair. This speeds up the chemical reactions taking place in the new battery, allowing for superfast charging.

The science behind the formation of the new titanium dioxide gel was published in the latest issue of Advanced Materials, a leading international scientific journal in materials science.

Prof Chen and his team will be applying for a proof-of-concept grant to build a large-scale battery prototype. With the help of NTUitive, a wholly-owned subsidiary of NTU set up to support NTU start-ups, the patented technology has already attracted interest from the industry.

The technology is currently being licensed by a company for eventual production. Prof Chen expects that this new generation of fast-charging batteries based on his research could hit the market in the next two years.

Easy to manufacture
An NTU media release notes that according to Frost & Sullivan, a leading growth-consulting firm, the global market for rechargeable lithium-ion batteries is projected to be worth US$23.4 billion in 2016, but these usually use additives to bind the electrodes to the anode, which affects the speed in which electrons and ions can transfer in and out of the batteries.

Prof Chen’s new cross-linked titanium dioxide nanotube-based electrodes eliminates the need for these additives and can pack more energy into the same amount of space.

Manufacturing this new nanotube gel is claimed to be very easy. Titanium dioxide and sodium hydroxide are mixed together and stirred under a certain temperature so battery manufacturers will find it easy to integrate the new gel into their current production processes.

Recognized as next big thing by co-inventor of today’s lithium-ion batteries
NTU professor Rachid Yazami - who co-invented the lithium-graphite anode 30 years ago that is used in today’s lithium-ion batteries - said Prof Chen’s invention is the next big leap in battery technology.

“While the cost of lithium-ion batteries has been significantly reduced and its performance improved since Sony commercialized it in 1991, the market is fast expanding towards new applications in electric mobility and energy storage,” said Prof Yazami, who is not involved in Prof Chen’s research project.

Last year, Prof Yazami was awarded the prestigious Draper Prize by The National Academy of Engineering for his ground-breaking work in developing the lithium-ion battery with three other scientists.

“However, there is still room for improvement and one such key area is the power density - how much power can be stored in a certain amount of space - which directly relates to the fast charge ability. Ideally, the charge time for batteries in electric vehicles should be less than 15 minutes, which Prof Chen’s nanostructured anode has proven to do so.”

Prof Yazami is now developing new types of batteries for electric vehicle applications at the Energy Research Institute at NTU (ERI@N). This battery research project took the team of four scientists three years to complete. It is funded by the National Research Foundation (NRF), Prime Minister's Office, Singapore, under its Campus for Research Excellence and Technological Enterprise (CREATE) Programme of Nanomaterials for Energy and Water Management.

Brian H | 20 oktober 2014

Old news. And TM batteries last far longer than 2 years.

Remnant | 21 oktober 2014

@ Brian H (October 20, 2014)

<< Old news. And TM batteries last far longer than 2 years. >>

cyeber meant 20 (twenty) years.

Such batteries are already in use.

Brian H | 21 oktober 2014

"Commonly used in mobile phones, tablets, and in electric vehicles, rechargeable lithium-ion batteries usually last about 500 recharge cycles. This is equivalent to two to three years of typical use".

(My bold)

petero | 21 oktober 2014

R&D and promising new technologies make great news but most of them are years away (if ever) from commercial applications.

Battery makers depend on commercially viable batteries that have economies of scale, huge demand from quantity customers, to power their companies. Battery makers lice mass ICE manufacturers are adverse to change – there is a compelling reason to change. Why do you think TM uses Lithium-Ion batteries?

Remnant | 21 oktober 2014

@ Brian H | October 21, 2014

<< ... rechargeable lithium-ion batteries usually last about 500 recharge cycles. >>

Yes, but nano-structured Titanium-Lithium batteries are reported to last 10k cycles.

Brian H | 21 oktober 2014

The point is Tesla batteries are rated to last far longer; 3k minimum, maybe 10k. Already.

Red Sage ca us | 23 oktober 2014

Has anyone else noticed how often these announcements include the words, "...potentially ... claims ... breakthrough..."?

Anemometer | 24 oktober 2014

@RS. Yes.

And every potential takes 10-20 years from appearing in popular science magazines till you can buy it. There's stuff im still waiting on that was announced before the Internet was in popular usage.

Fuel cells, and roll up OLEDs being examples I first read about in the mid 1990s.

Red Sage ca us | 25 oktober 2014

I read about both in the early 1980s, while in high school -- and those were dusty magazines in Shop Class...


bryan.whitton | 25 oktober 2014

This is the same thing I hear in teh solar industry all the time. The classic one is "Well they have developed a paint that they can spray on a house wall up in Berkeley so I am going to wait for that one to come out."

Even if it was functional it can take decades to take something fro the lab to production and there are many opportunities of failure along the way.

Batteries are the exact same thing. Just because they have seen a certain result is a lab doesn't mean that they know how to get the same result in a production version. Or even if they know how to mass produce it for a reasonable price.

scott | 27 oktober 2014

Just read through this account:

Seems like the announcement was actually a re:announcement of work done by others over the last few years.

On the positive side, seems like more people are trying to commercialize this technology, which is great.

David N | 27 oktober 2014

Yada yada yada

nickrijs | 27 oktober 2014

what would it do to the grid if you put 85 KWH in a battery in 2 mins

carlgo | 27 oktober 2014

There was a short or something at a telephone pole down the street. The wire was red hot, brightly glowing. It was pretty spectacular and then it lit up a tree and the fire dept came. Very exciting.

Anemometer | 28 oktober 2014

what would it do to the grid if you put 85 KWH in a battery in 2 mins
Nothing if you are using stationary storage to buffer the electric.

Or have a 22kV/110kV connection that by passes the local/area substation. IF we are dealing with theoritacal batteries we can deal with theoretical grid connections that aren't 240V residential. Those bigger pylons carry 220kV so 4 amps from just one of the wires would be enough get 1MW.

But.. I think the limit is likely to be around 400kW for charging due to cable thickness. That's @ 1000V 400 amp. You could push voltage higher, but I was using this example as I've seen hand sized connectors for Railcars that deal with the above figures. So not impossible to design something for EV use.

That's enough to get you 22 miles of range per minute of charging. Or 1333 miles per hour.

If you can bear to stop on this long journey that everyone with EVs seems to find essenstial, 15 minutes comfort break: top up your coffee mugs and snack stash, get a take out meal for the family. It will get you another 333 miles. Enough to last until next meal break at least.

Anemometer | 28 oktober 2014

Interesting - I should have thought of this before... 400kW DC power supplies aren't that rare. In data centres! They might have several.

ats.laszlo71 | 3 november 2014

Sorry if you would like other MR Musk.
This is a very promising technology:

Timo | 4 november 2014

500 * 265 = 132,500 miles, 3000 * 265 = 795,000 miles, 10k * 265 = 2,650,000 miles. | 21 oktober 2019

@groupbagla2019 is spam. Flag it.

andy.connor.e | 21 oktober 2019

How interesting. Check out the unrelated facts for support to nothing applicable. Click the link! Quick!