NTT developed an eco-friendly battery which can safely return to soil

Nippon Telegraph and Telephone Corp says it has developed an eco-friendly battery that can be disposed of in soil without harming the surrounding environment.

Along with the diffusion of Internet of Things devices and appliances, the Japanese telecommunication giant assumes it will become difficult to retrieve and recycle all batteries used in sensors and other parts of those products, likely damaging the environment.

Unlike conventional batteries, which contain zinc alloy, rare metals and, in some cases, materials harmful to the environment, the new battery is made from components of fertilizer and other natural elements so it can safely return to soil.

NTT tested the safety of the battery by burying the smashed fragments of the used battery beside a vegetable, and it did not negatively affect the growth of the vegetable in contrast to a conventional battery.

However, since the battery’s capacity is still limited, NTT will continue its research to commercialize it.

The company is also planning to develop various sensors that can be disposed of in soil without harming the environment, it said.

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