Batteries

Open Water Power’s battery that "drinks" in sea water to operate is safer and cheaper, and provides a tenfold increase in range, over traditional lithium-ion batteries used for unpiloted underwater vehicles. The power system consists of an alloyed aluminum anode, an alloyed cathode, and an alkaline electrolyte positioned between the electrodes. Components are only activated when flooded with wat...

Batteries that “drink” seawater could power long-range underwater vehicles

Startup’s novel aluminum batteries increase the range of UUVs tenfold.

June 15, 2017

“The most interesting thing about these materials is they function at temperatures above 500 degrees Celsius,” says MIT graduate student Jessica Swallow, pictured with the equipment used for testing the new materials.

High-temperature devices made from films that bend as they “breathe”

Mechanical actuators developed by MIT team expand and contract as they let oxygen in and out.

May 8, 2017

Researchers may have determined why fairly brittle electrode materials in batteries don’t crack under the strain of expansion and contraction cycles when they are used and recharged.

How some battery materials expand without cracking

Brittle electrodes handle expansion by going glassy, study shows.

April 12, 2017

As part of a $35 million materials science discovery program, The Toyota Research Institute will support three MIT-affiliated projects directed at advancing technologies that underpin the future of mobility and autonomous systems and energy storage, such as rechargeable batteries used in hybrid and electric cars.

Multi-university effort will advance materials, define the future of mobility

With support from the Toyota Research Institute, MIT faculty will focus on next-generation energy storage.

April 3, 2017

Kyocera Professor of Materials Science and Engineering ‪Yet-Ming Chiang (left), is working with MIT senior Harry Thaman (center) and postdoc Linsen Li to study a new kind of electrolyte for “self-healing” lithium battery cells, which will be formed by adding a halide element such as iodine.

Iodine may protect batteries

MIT, Carnegie Mellon researchers explore “self-healing” batteries with new metal-halide solid electrolyte material.

March 8, 2017

At the Friday evening “Energy Showcase,” participants tried out a virtual reality demonstration put on by Shell, one of the conference sponsors.

Making energy storage so simple it’s “boring”

Inexpensive, reliable, and forgettable storage systems could enable boom in renewables, say speakers at MIT Energy Conference.

March 7, 2017

Left to right: Gabriela Schlau-Cohen, Rafael Jaramillo, David Hsu, Nuno Loureiro

New faculty strengthen, broaden MIT’s energy expertise

MIT's newest faculty bring a wide array of energy interests and developments to the Institute.

February 7, 2017

Using specialized equipment, the MIT team did tests in which they used a pyramidal-tipped probe to indent the surface of a piece of the sulfide-based material. Surrounding the resulting indentation (seen at center), cracks were seen forming in the material (indicated by arrows), revealing details of its mechanical properties.

Toward all-solid lithium batteries

Researchers investigate mechanics of lithium sulfides, which show promise as solid electrolytes.

February 2, 2017

Glen Merfeld, product science leader at GE Global Research, points to almost 40,000 wind turbines installed globally during the 2016 Materials Day Symposium at MIT.

Battery challenges: cost and performance

Industry speakers and MIT faculty offer solutions to problems ranging from small portable devices to large fixed installations.

November 2, 2016

To demonstrate the supercapacitor's ability to store power, the researchers modified an off-the-shelf hand-crank flashlight (the red parts at each side) by cutting it in half and installing a small supercapacitor in the center, in a conventional button battery case, seen at top. When the crank is turned to provide power to the flashlight, the light continues to glow long after the cranking stops, ...

New kind of supercapacitor made without carbon

Energy storage device could deliver more power than current versions of this technology.

October 10, 2016

FastCAP Systems' ultracapacitors (pictured) can withstand extreme temperatures and harsh environments, opening up new uses for the devices across a wide range of industries, including oil and gas, aerospace and defense, and electric vehicles.

New applications for ultracapacitors

Startup’s energy-storage devices find uses in drilling operations, aerospace applications, electric vehicles.

September 7, 2016

MPC-CMSE Summer Scholar Victoria Yao shows a mixture of sodium thiosulfate being stirred in a solution of copper hexacyanoferrate where its reacts to produce larger compounds that can be filtered out of the solution. These compounds are being developed for use in electrodes for a water-based flow-driven battery for grid level storage.

Designing safe, cheap batteries for grid level storage

Summer Scholar Victoria Yao experiments with water-based, flow-driven battery concept in Brushett Lab.

September 1, 2016

At right, scanning electron microscope (SEM) images show the two types of lithium deposits, the bulky, mossy type (at top), which grows from its base, and the needle-like dendritic type (bottom), which grows from the tips. At left, SEM images show the effect of a blocking layer of ceramic material that limits the growth of the mossy deposits.

In batteries, a metal reveals its dual personality

Branchlike deposits grow on lithium electrode surfaces in two ways, one much more damaging.

September 1, 2016

SolidEnergy Systems' battery (far right) is twice as energy-dense, yet just as safe and long-lasting as the lithium ion batteries used in consumer electronics. The battery uses a lithium metal foil for an anode, which can hold more ions and is several times thinner and lighter than traditional lithium metal, graphite, carbon, or silicon anodes. A novel electrolyte also keeps the battery from heati...

Doubling battery power of consumer electronics

New lithium metal batteries could make smartphones, drones, and electric cars last twice as long.

August 16, 2016

Erica Eggleton is working this summer in the lab of MIT Professor Krystyn Van Vliet on lithium manganese oxide (LMO) electrodes for lithium ion batteries. Here, she measures out carbon powder, a binder, and LMO, the active powder used in the battery electrodes.

Analyzing lithium ion battery fatigue

Summer Scholar Erica Eggleton joins Van Vliet Lab to make and test lithium manganese oxide electrodes.

August 2, 2016

MIT News | Massachusetts Institute of Technology

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