Showing posts with label batteries. Show all posts
Showing posts with label batteries. Show all posts

Friday, September 19, 2014

First Water-Based Nuclear Battery Can Be Used to Generate Electricity for decades with betavoltaics breakthrough

From cell phones to cars and flashlights, batteries play an important role in everyday life. Scientists and technology. companies constantly are seeking ways to improve battery life and efficiency. Now, for the first time using a water-based solution, researchers at the University of Missouri have created a long-lasting and more efficient nuclear battery that could be used for many applications such as a reliable energy source in automobiles and also in complicated applications such as space flight.

The battery uses a radioactive isotope called strontium-90 that boosts electrochemcial energy in a water-based solution. A nanostructured titanium dioxide electrode (the common element found in sunscreens and UV blockers) with a platinum coating collects and effectively converts energy into electrons.

“Water acts as a buffer and surface plasmons created in the device turned out to be very useful in increasing its efficiency,” Kwon said. “The ionic solution is not easily frozen at very low temperatures and could work in a wide variety of applications including car batteries and, if packaged properly, perhaps spacecraft.”

The maximum energy conversion efficiency of the MU battery was approximately estimated to be 53.88%. This is an astonishing number for a first trial design. Strontium 90 has a half life of 28.79 years



H/T to New Energy and Fuel

Nature Scientific Reports - Plasmon-assisted radiolytic energy conversion in aqueous solutions


ABSTRACT

The field of conventional energy conversion using radioisotopes has almost exclusively focused on solid-state materials. Herein, we demonstrate that liquids can be an excellent media for effective energy conversion from radioisotopes. We also show that free radicals in liquid, which are continuously generated by beta radiation, can be utilized for electrical energy generation. Under beta radiation, surface plasmon obtained by the metallic nanoporous structures on TiO2 enhanced the radiolytic conversion via the efficient energy transfer between plasmons and free radicals. This work introduces a new route for the development of next-generation power sources.


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Monday, September 8, 2014

Tesla Motors First Gigabattery factory will be in Nevada

Tesla Motors has chosen Nevada as the site for its proposed $5 billion "gigafactory" battery plant. Tesla has already excavated on the presumed site at the Tahoe Reno Industrial Center, roughly a four-hour drive from Tesla's Fremont factory. Casinos -- which need a lot of electricity -- could be prime customers of Tesla's energy storage systems. Tesla needs a 500- to 1,000-acre site to accommodate up to 10 million square feet of construction. Tesla had previously said the "gigafactory" could employ as many as 6,500 people by 2020. Tesla expects they will eventually have several gigafactories running at once, in different locations. Tesla expects to sell 35,000 all-electric Model S sedans in 2014 and is gearing up production of its Model X SUV, which will hit the market next year. By 2017, it plans to begin delivery of its more affordable "Gen 3" sedan, which it hopes to sell for about $35,000, or roughly half the cost of the cheapest Model S. The gigafactory is not just for car batteries. Tesla is increasingly exploring stationary energy storage for homes, businesses and utilities.

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