When lithium-ion pioneers M. Stanley Whittingham, Adam Heller, Michael Thackeray, and of course, John Goodenough were in the initial stages of the technology’s development in the 1970s through the late 1980s, there was no clear idea of just how monumental the lithium-based battery would come to be. Even up to a few years ago, the idea of an electric vehicle or renewable grid dependent on lithium-ion technology seemed like a pipe dream. But now, electric vehicles are making their way to the mainstream and with them comes the commercially-driven race to acquire lithium.

Just look at the rise of Tesla and success of the Nissan LEAF. Not only are these cars speaking to a real concern for environmental protection, they’re also becoming the more affordable option in transportation. For example, the LEAF goes for less than $25,000 and gets more than 80 miles per charge. Plus, electric vehicles can currently run on electricity that’s costing around $0.11 per kWh, which is roughly equivalent to $0.99 per gallon. The last year alone saw a 60 percent spike in the sale of electric vehicles.

“Electric cars are just plain better,” says James Fenton, director of the Florida Solar Energy Center and newly appointed ECS Secretary. “They’re cheaper to buy up front and they’re cheaper to operate, which years ago, was not the case.”

All things considered, lithium may just be the number one commodity of our time.

But this movement is not specific to the U.S. alone. In Germany – a country dedicated to a renewable future – there is a mandate that all new cars in the country will have to be emission-free by 2030. Similarly in Norway, the government is looking to ban gasoline-powered cars by 2025.

So with the transportation sector heading away from gasoline-powered cars and toward lithium battery-based vehicles globally, what will that do to lithium supplies?

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Hearing aid battery

One pair of ZPower hearing aid batteries can keep more than 200 disposable batteries out of the landfill.
Image: ZPower

Lithium based technologies have been dominant in the battery arena since Sony commercialized the first Li-ion battery in 1991. ECS member Jeff Ortega, however, believes that a different material holds more promise than its lithium competitor in the world of microbattery technology.

During the 229th ECS Meeting, Ortega presented work that focused on the analysis of data from commercially available rechargeable Li-ion and Li-polymer cells. He then compared the silver-zinc button cells of ZPower, where he currently serves as the company’s director of research. His results showed that the company’s silver-zinc button cells offer both greater capacity and greater density than their Li-ion and Li-polymer counterparts. Additionally, Ortega stated that the cells are also generally safer and better for the environment.

[MORE: Read Ortega’s meeting abstract.]

According to Ortega, the small silver-zinc cells have 57 percent greater energy density than both types of lithium based calls. Their potential applications including medical devices, body worn sensors, wearables, and any other microbattery application that demands long wear time. Currently, ZPower has implement these cells in hearing aid technologies.

“The ZPower Rechargeable System for Hearing Aids makes it easy to convert many new and existing hearing aids to rechargeable technology,” says Ortega in a statement. “The Rechargeable System offers a full day of power, charges overnight in the hearing aids, takes the place of an estimated 200 disposable batteries and lasts a full year. The ZPower hearing aid battery is replaced once per year by a hearing care professional, so the patient never has to touch a hearing aid battery again.”

Powering Homes with Tofu

Energy comes in many forms. From solar to wind, there are an abundance of energy technologies available today. But one village in Indonesia is using on very different, very unique product to power their homes: Tofu.

The remote Kalisari village in Indonesia has a vibrant tofu producing industry (over 150 tofu businesses, to be exact). To produce this tofu, a lot of water is required. To make just over two pounds of tofu, some nine gallons of water is required. That water, inevitably, transforms into wastewater and it typically tossed into a nearby drainage system.

But the village has found a way to make that waste reusable in the form of energy. By treating the wastewater with a specific type of bacteria, biogas can be produced. The clean, renewable energy can be pumped directly into households.

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We may understand melanin best as the pigment that dictates our skin tone, but these pigments are actually super plentiful – existing in almost every organism on earth. While melanin is all around us, there is still much to learn about its chemical structure.

A group of researchers from Carnegie Mellon University set out to better understand melanin, and in doing so, found that its chemical structure may be conducive to creating certain kinds of batteries.

“Functionally, different types of melanin molecules have quite different chemistries, so putting them together is a little like solving a jigsaw puzzle, with each molecule a puzzle piece,” says Venkat Viswanathan, ECS member and co-author of the study. “You could take any number of these pieces and mix and match them, even stack them on top of each other. So what we researched was, which of these arrangements is really correct?”

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batteries-1379208_640In late 2015, a team of Cambridge University researchers led by ECS member Clare Grey, detailed research in the journal Science on the path to the “ultimate” battery. According to the study, the researchers stated they had successfully demonstrated how to overcome many of the problems preventing the theoretically promising lithium-air battery from being commercially viable.

The key component to this research relies on a highly porous, “fluffy” carbon electrode made from graphene. The researchers cautioned that although the preliminary results were very promising, much work was yet to be done to take lithium-air batteries from the lab to the marketplace.

However, the research got many scientists in energy science and technology talking. Like all groundbreaking results, there has been much discussion and some controversy over the research published by Grey and her team.

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Researchers from the University of Maryland and the U.S. Army Research Laboratory have developed a lithium-ion battery that is safer, cheaper, more powerful, and extremely environmentally friendly – all by adding a pinch of salt.

The team, led by ECS members Chunsheng Wang and Kang Xu, built on previous “water-in-salt” lithium-ion battery research – concluding that by adding a second salt to the water-based batteries, efficiency levels rise while safety risks and environmental hazards decrease.

(WATCH: Wang’s presentation at the fifth international ECS Electrochemical Energy Summit, entitled “A Single Material Battery.”)

“Our invention has the potential to transform the energy industry by replacing flammable, toxic lithium ion batteries with our safe, green water-in-salt battery,” says Wang, professor in the University of Maryland’s Department of Chemical & Biomolecular Engineering. “This technology may increase the acceptance and improve the utility of battery-powered electric vehicles, and enable large-scale energy storage of intermittent energy generators like solar and wind.”

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In the field of batteries, lithium is king. But a recent development from scientists at the Toyota Research Institute of North America (TRINA) may introduce a new competitor to the field.

The researchers have recently developed the first non-corrosive electrolyte for a rechargeable magnesium battery, which could open the door to better batteries for everything from cars to cell phones.

“When magnesium batteries become a reality, they’ll be much smaller than current lithium-ion,” says Rana Mohtadi, principal scientist and ECS patron member through TRINA. “They’ll also be cheaper and much safer.”

Magnesium has long been looked at as a possible alternative to lithium due to its high energy density. However, these batteries have not seen much attention in research and development due to the previously non-existent electrolyte. Now that the electrode has been developed, the researchers believe they will be able to demonstrate the value of this system.

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Electronic cigarettes have paved a path for smokers to get their nicotine fix in a safer way. However, with recent news reports of the devices exploding into bursts of flames, many consumers now wary of the safety concerns.

E-cigarettes are relatively simple devices. Powered by a battery, an internal heating element vaporizes the liquid solution in the cartridge. But for a New York teen, the process wasn’t as simple as he expected.

Anatomy of an e-cigarette

According to a report by USA Today, the teen pressed the button to activate his e-cigarette and it exploded in his hands like “a bomb went off.”

Investigators expect that the device’s lithium-ion battery malfunctioned. Li-ion batteries, however, are the driving force behind personal electronics, electric vehicles, and even have potential in large-scale grid storage. So why are devices like hoverboards and e-cigarettes experiencing such issues with Li-ion battery safety when so many other applications consider the energy dense, long-life battery a non-safety hazard?

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Science of Lightsabers

May the 4th be with you

Whether you’re a Star Wars superfan or find yourself lost when the conversation turns to discussions of the feasibility of the Death Star, you can probably identify the epic space series’ iconic lightsaber. The lightsaber has become one of the most recognizable images in popular culture, but is it purely fiction or could it be a reality?

According to the Star Wars books, lightsabers are pretty complex devices but essentially boil down to a few key elements: a power source and emitter to create light, a crystal to focus the light into a blade, a blade containment field, and a negatively charged fissure. In the Star Wars galaxy, a lightsaber creates energy, focuses it, and contains it.

But that’s fiction and those ideas are not in line with current science and technology. So how could we build a lightsaber with the tools we have today?

Many people look initially to laser technology when discussing a practical lightsaber. It’s unrealistic to say that light could be the source of the blade seeing as light has no mass (creating a pretty insufficient weapon), but lasers could be an alternative. It may seem contradictory to say that lasers could be the blade in a lightsaber when lasers are essentially light focused to a very fine point, but as Looper puts it, light is to a laser what a tree is to paper.

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While you may be unfamiliar with Khalil Amine, he has made an immense impact in your life if you happen to use batteries in any way.

As a researcher with a vision of where the science can be applied in the market, Amine has been monumental in developing and moving some of the biggest breakthroughs in battery technology from the lab to the marketplace.

Amine is currently head of the Technology Development Group in the Battery Technology Department at Argonne National Laboratory. From 1998-2008 he was the most cited scientist in the world in the field of battery technology.

He is the chair of the organizing committee for the 18th International Meeting on Lithium Batteries being held this June in Chicago.

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