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Mega Flow Batteries Promise Cheap Large-scale Storage

Written by , on March 14, 2014

Flow batteries generate an electrical charge from the interaction of a liquid electrolyte flowing past either another liquid or a solid. The liquid electrolyte is stored in separate tanks until it is needed. Large flow batteries have the potential to be relatively cheap because you only need to add an extra tank to increase their […]  Read more »

Lithium-Sulfur – The Next Generation of Batteries?

Written by , on March 7, 2014

The most widely accepted technology for batteries today is lithium-ion, which is practical for consumer electronics but not for anything much bigger. For large-scale energy storage from vehicles to solar panels, wind turbines or the electricity grid, lithium-ion is too expensive. Since their discovery in the 1960s, it has been believed that lithium-sulfur batteries, which […]  Read more »

Batteries from Wood and Rice

Written by , on July 17, 2013

Wood Lithium-based rechargeable batteries are expensive and lithum is relatively scarce. On the other hand, sodium is abundant and cheap and can be used in place of lithium in batteries. The problem is that sodium ions are many times larger than lithium ones and they gradually damage a battery's anode as they diffuse during charging […]  Read more »

New Flow Battery Promises Lower Cost Grid Storage

Written by , on May 9, 2013

Researchers from the U.S. National Accelerator Laboratory and Stanford University have develpoed a new type of flow battery which could potentially provide low-cost, long-life storage for solar and wind energy. Current flow batteries pump two different liquids through an interaction chamber where dissolved molecules undergo chemical reactions that store or release energy. The chamber contains […]  Read more »

Microbatteries Offer Both Power and Energy

Written by , on April 18, 2013

Researchers at the University of Illinois at Urbana-Champaign have developed new microbatteries which out-power even the best supercapacitors and could drive new applications in radio communications and compact electronics. Currently capacitors are used for applications that need a lot of power because they can release energy very quickly – however, can only store a small […]  Read more »

Redox Flow Battery Capacity Increased 8-fold

Written by , on March 19, 2013

Scientists at Germany's Fraunhofer Institute have announced an important breakthrough in the development of a redox flow battery that reaches stack power up to 25 kilowatts. This is eight times larger than previous systems. Redox flow batteries store electrical energy in chemical liquid electrolytes. The electrolytes are charged and discharged in small reaction chambers. Several […]  Read more »

PV Charger Built into Phone Screen

Written by , on March 5, 2013

Wysips, a company based in Aix-en-Provence, in southern France, has developed a photovoltaic film which can be built into a mobile phone, laptop or tablet screen and charge the battery from any artificial or natural light source. According to Wysips chief executive, Ludovic Deblois, “With 10 minutes in the sun you will be able to […]  Read more »

Silicon Anode Gives Lithium-ion Battery Superior Performance

Written by , on February 14, 2013

Researchers at the University of Southern California have developed a new lithium-ion battery design that uses porous silicon nanoparticles in place of the traditional graphite anodes. The new batteries hold three times as much energy as comparable graphite-based designs and recharge within 10 minutes. Silicon, which is cheap and has a high potential capacity, would […]  Read more »

Flexible Lithium-ion Batteries

Written by , on January 17, 2013

Researchers at South Korea's Ulsan National Institute of Science and Technology have developed a lithium-ion battery so flexible that it can be tied in a knot. Traditional batteries use liquefied electrolytes in hard cases. These hard casings prevent flexibility and create a risk of explosion should heat melt the film that separates electrolytes. In a […]  Read more »

Sodium Battery Progress – Less than Reported

Written by , on November 24, 2012

Currently, the leading battery technology is lithium-ion. These batteries work well and can be recharged hundreds of times. The problem is that lithium is not cheap and is likely to become more expensive as demand for batteries increases. After lithium, the next most attractive element is sodium. Sodium is extremely plentiful and cheap. The problem […]  Read more »