Biofuels have been around as long as cars have.

A biofuel is a fuel that contains energy from geologically recent carbon fixation. These fuels are produced from living organisms.

Generating Electricity from Wing Waves.

Wind turbines, like windmills, are mounted on a tower to capture the most energy. At 100 feet (30 meters) or more aboveground, they can take advantage of the faster and less turbulent wind.

Producing electricity from solar energy.

Solar energy is a free, inexhaustible resource, yet harnessing it is a relatively new idea. The ability to use solar power for heat was the first discovery.

Turbines catch the wind's energy with their propeller-like blades.

A blade acts much like an airplane wing. When the wind blows, a pocket of low-pressure air forms on the downwind side of the blade.

Solar energy may have had great potential

Solar technology advanced to roughly its present design in 1908 when William J. Bailey of the Carnegie Steel Company invented a collector with an insulated box and copper coils.

We have been harnessing the wind's energy for hundreds of years.

For utility-scale sources of wind energy, a large number of wind turbines are usually built close together to form awind plant.

Biofuels are produced from living organisms.

In order to be considered a biofuel the fuel must contain over 80 percent renewable materials.

Geothermal energy is the heat from the Earth.

Resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the Earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma.

Geothermal heat pumps can tap into this resource to heat and cool buildings.

A geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building.

In the future, civilization will be forced to research and develop alternative energy sources.

Possession of surplus energy is, of course, a requisite for any kind of civilization, for if man possesses merely the energy of his own muscles, he must expend all his strength - mental and physical - to obtain the bare necessities of life.

Showing posts with label lithium-ion battery. Show all posts
Showing posts with label lithium-ion battery. Show all posts

Thursday, February 26, 2015

Dyson Invests In New Tech To Double Smartphone Battery Life

Dyson Invests In New Tech To Double Smartphone Battery Life
Dyson is investing 15 million in a new type of battery that promises to double smartphone battery life and allow electric cars to drive over 600 miles per charge.

The British vacuum company will invest in the University of Michigan spin-off called Sakti3, which has developed next generation solid-state technology that can store twice as much energy as traditional rechargeable batteries.

As part of the investment, Dyson has entered into a joint development agreement to commercialize Sakti3's solid-state battery technology. The new batteries promise to store twice as much energy as today's liquid-based lithium batteries, that are used in everything from smartphones and tablets to cars, robots, and renewable energy sources such as solar panels and wind turbines.

"Sakti3 has achieved leaps in performance, which current battery technology simply can't," said company founder James Dyson. "It's these fundamental technologies - batteries, motors - that allow machines to work properly."

Battery technology is one of the major limiting factors of portable or cordless electronic products today. While surrounding computer technologies have progressed at a staggering rate, batteries haven't kept up, leading to user frustration and limits on what can be done.

The lithium-ion technologies used in today's best batteries have barely progressed since their introduction in 1991 by Sony. There has been improvement in longevity and charging times, but not a great deal in terms of the amount of energy that batteries store.

Mobile electronics have been forced to choose: either be heavier and thicker, or else suffer from poor battery life, which is one of the reasons products like the iPhone rarely last longer than a day on a single charge.

Most batteries rely on a liquid mixture of reactive compounds, which store energy from the mains and release it when required through chemical reactions within the cell in the form of electricity.

Sakti3's solid-state technology uses solid lithium electrodes instead of a liquid mix of chemicals, which doubles the amount of energy that can be stored within a battery.

The eight-year-old company claims its solid-state batteries can store over 1,000 watt hours per liter, which is almost double the best traditional lithium-ion batteries available today with an energy density of up to 620 watts per hour per litre. That increased energy density could effectively double the battery life of mobile electronics, extend the range of electric vehicles and lead to thinner and lighter technology.

The batteries also promise to be cheaper to manufacture, longer lasting and be more environmentally friendly than current lithium-ion batteries. Solid-state batteries also remove some of the safety issues around the explosive nature of liquid batteries.

The investment from Dyson guarantees that the new battery technology will appear first in Dyson products, including new versions of its cordless machines and robotic vacuum cleaners. But the applications for the technology go far beyond cleaning products.

Additional investors in Sakti3 include Khosla Ventures, General Motors and others.

"Image credits: Martin Abegglen/flickr, content by The Guardian"

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