They have enough energy to light 4 hours a day for a year.
Batteries from old laptops still have "life" in them, enough to power slums.
This is supported by an IBM study , according to which, of all the discarded batteries analyzed by researchers, 70% were found to have enough energy to light an LED lamp for more than four hours a day, for a year. The researchers also report that the retired batteries are cheaper than existing power supply options, while even helping with the problem of " e-waste ". The idea was tested in the city of Bangalore, India this year, while the conclusions of the research, conducted by an IBM team based in India, are to be discussed at a conference in San Jose, California, according to a report in MIT's Technology Review.
Cheap solution
The IBM team has created a device, which it has called " UrJar ", which uses lithium-ion batteries from old batteries to power low-power DC devices, such as a lamp. The researchers aim to help the nearly 400 million people in India who live without basic amenities. "The UrJar device could harness e-waste to alleviate energy poverty, while offering a sustainable solution to two problems," the researchers say, according to a BBC report , emphasizing that the first tests have had positive results.
Source: newsbeast.gr
📧
Subscribe to the SecNews Newsletter
