Tag: batteries

This Skin Patch Can Power A Radio For 2 Days Using Your Own Sweat

Researchers have created a new skin patch that has powered a radio for two days using only human sweat. The Biofuel Skin Patch uses the sweat to provide its power – meaning it could be used to charge up devices like phones in the near future.




“If you were out for a run, you would be able to power a mobile device,” said Joseph Wang from the University of California, San Diego.

His research team at the university have been working on the technology. The biofuel patch is a few centimeters wide and sticks directly on the skin.

skin patch

It works by using enzymes that act like the metals inside regular batteries, which are then powered up by feeding off the lactic acid found in sweat.

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Pass it on: New Scientist

Tesla Just Built The World’s Biggest Battery In Record Time

Elon Musk has won. The Tesla CEO made a bet that he could install the world’s biggest battery in South Australia within 100 days, and the whole installation would be free if the company failed.

Last November 23, Thurday, it was revealed that the project has been completed with 46 days to spare.

Congratulations to the Tesla crew and South Australian authorities who worked so hard to get this manufactured and installed in record time!” Musk said on his Twitter page Thursday.

The batteries are designed to provide reliable power to a part of Australia that desperately needs it. South Australia has dealt with 18 months of blackouts.

A 50-year storm event in September 2016 knocked out pretty much the entire state’s elect.




The Powerpack system provides 100 megawatts of storage to renewable energy firm Neoen’s Hornsdale wind farm near Jamestown in South Australia, holding enough power for 30,000 homes.

The two companies will join engineering company Consolidated Power Projects and state premier Jay Weatherill next week to officially unveil the battery.

The project forms part of a AU$530 million ($404 million) state plan to improve renewable energy production.

Last September, South Australia suffered from severe blackouts after a storm cut off production.

The state receives around a third of its energy from renewables, but the plan will boost this by building a solar thermal power plant and emergency generators along with the battery.

The world’s largest lithium-ion battery will be an important part of our energy mix and it sends the clearest message that South Australia will be a leader in renewable energy with battery storage,” Weatherill told the Associated Press.

Tesla first set itself the 100 days goal after a discussion between Musk and Australian software-billionaire Mike Cannon-Brookes.

In March, Cannon-Brookes asked if Lyndon Rive, Tesla’s vice-president for energy products, was telling the truth when he said the company could install between 100 to 300 megawatt-hours of storage in 100 days.

This led to a bidding process where the state government agreed to fund $113 million of battery storage. Tesla beat out a number of competitors to score the contract.

Musk was a bit sly with the deadline, though. Tesla started counting down 54 days ago from September 30, the point at which the Australian energy regulator gave clearance to the project.

The company was building the battery for a while prior to this. The project came well under the January 8, 2018 deadline, but Tesla did not build a battery in less than two months.

Between now and next week’s unveiling, the battery will undergo a series of checks to ensure it meets state and energy regulations.

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Pass it on: Popular Science