By far the most important component in an electric car is the battery pack. Without one, you aren't going anywhere. Even if you have one, it'll lose some of its capacity as it ages, so they also need to be replaced every few years. That leaves us with the question of what to do with the old ones.
Nissan's Leaf is one of the oldest electric cars in production, and many of the battery packs sold with the first cars are reaching the end of their lifespan. But just because these batteries can’t be used in cars anymore doesn’t mean they’re completely useless.
Nissan and its affiliate company 4R Energy Corporation have partnered with the Japanese town of Namie, which was hit hard by the earthquakes and tsunami in 2011. In order to better protect the town from future earthquakes, Nissan is that rely on used batteries from its electric cars.
As part of the project, called "The Reborn Light," Nissan has plans to manufacture many of these lights, possibly turning their battery recycling program into a light-manufacturing one. It's tough to say how far programs like these might spread, but for now the future looks bright.