Dec-09-14
Made of discarded laptop lithium ion batteries, the UrJar brings light to homes in developing nation while reducing landfill waste.
The UrJar, created by a team of IBM researchers, is made by extracting the still-functioning lithium ion cells and repacking them in new housing of basic electronics, including charging dongles and circuit safety measures (to reduce fire risk). The batteries were then equipped with Buck converters and a boost circuit feed to power DC devices such as cell phones and LED lights. When distributed to vendors in Bangladesh, the UrJar enabled them to stay open a few hours longer each night.
According to the team, about 70 percent of discarded batteries can provide four hours of LED lighting each day for a year. IBM plans to make the devices available for free in countries that suffer from "energy poverty."
More Info about this Invention:
[
IEEE.ORG]
[
DGP.TORONTO.EDU]
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