Student collects 13,000 used batteries

While other youngsters had been at household watching television or spending their time online after school, William Zerafa, 13, was out scouring the streets in search of used batteries to do his component for the environment.

A student at St Patrick's School, Sliema, he took his school's parti-cipation in the Battery Buster campaign so seriously by the end of his mission he had collected 13,000 batteries, sending his school to the top of the league.

"I employed to go out after school with my uncle and collect batteries from shops and the streets into a huge box," he said.

He was 1 of the students assembled at WasteServ's Mrie?el civic amenity web site yesterday to bid farewell to the 71 tons of batteries collected in Malta over the past four years.

Students from St Patrick's School, Newark Junior School, in Sliema, as well as the ?abbar, Mqabba and Kirkop primary schools had been there too.

Schools alone collected over 14 tons of batteries, which will be exported to Italy to be recycled as it doesn't make sense for Malta to export the smaller batteries on a typical basis.

WasteServ chairman Ben Farrugia said that by 2012 the country would have to recycle 25 per cent of all the batteries it used and that would boost by 45 per cent in 2015.

The numbers appear to be on track. In 2009, WasteServ collected 13 per cent and this rose to 17 per cent last year. This, Mr Farrugia said, excluded car batteries, which were exported for recycling by the private sector.

Resources Minister George Pullicino said the country was recycling more and more and, in the past 18 months alone, 40,000 units of electrical goods were taken for recycling. That excluded 30,000 TV sets and monitors.

The younger generation appears to be responding well to its responsibility, with St Patrick's School leading the pack.

Amber Mifsud, 10, from Mqabba Primary had the support of her family and managed to collect well over 1,000 batteries even though Kelly Chetcuti, from Kirkop, collected 500 batteries(laptop batteries) with the help of her mother, who would get employed batteries from work.

Second Generation of Apple TV Available in 4 Weeks

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Why batteries lose their ability to hold a charge as they age

Scientists have discovered that batteries lose their potential to hold a command as they age due to the fact the finely structured nanomaterials present from the battery get coarsened in size.

Researchers at the Ohio State University had been trying to study why batteries lose their ability to hold a command as they age-specifically lithium-ion batteries, which have generated a lot of buzz for their potential to power the electrical cars in the future.

Yann Guezennec and Giorgio Rizzoni of OSU developed new experimental facilities and procedures to demand and discharge commercially-available Li-ion batteries thousands of times over several months in a number of conditions designed to mimic how these batteries are in fact utilised by hybrid and all-electric vehicles.

To understand the results of this testing, Bharat Bhushan, Suresh Babu, and Lei Raymond Cao studied the materials inside of your batteries to support determine how this aging manifests itself from the structure of the electrode materials.

When the batteries died, the scientists dissected them and employed a method known as infrared thermal imaging to search for problem regions in every electrode, a 1.5-meter-long strip of metal tape coated with oxide and rolled up like a jelly roll.

They then took a closer take a look at these difficulty areas making use of various methods with diverse length scale resolutions and discovered that the finely-structured nanomaterials on these electrodes that enable the battery rapidly charge and discharge had coarsened in size.

Additional studies from the aged batteries, employing neutron depth profiling, revealed that a fraction with the lithium that's responsible, in ion form, for shuttling electrical command between electrodes throughout charging and discharging, was no longer available for cost transfer, but was irreversibly lost from the cathode to the anode.

"We can clearly see that an aged sample versus and unaged sample has a lot lower lithium concentration inside the cathode," said Rizzoni in the Center for Automotive Research at OSU.he researchers suspect that the coarsening of the cathode may perhaps be behind this loss of lithium.