1. Solar Chemical

... cells: photoelectric cells that convert light into electricity and photochemical cells that use light to drive chemical reactions such as electrolysis. A photogalvanic device is a type of battery in which ...

2. Photovoltaics

... 4.5–6%. The earliest significant application of solar cells was as a back-up power source to the Vanguard I satellite, which allowed it to continue transmitting for over a year after its chemical battery ...

3. Battery Recycling

Battery recycling is a recycling activity that aims to reduce the number of batteries being disposed as municipal solid waste. It is widely promoted by environmentalists concerned about contamination, ...