Diamond nanowires are more efficient than Li-Ion batteries. Free Technical Library News

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Diamond nanowires are more efficient than Li-Ion batteries

12.04.2021

Scientists from the Queensland University of Technology (Australia) have designed a new energy storage device based on a spring. Only in this case, it is made of an extremely promising innovative material - diamond nanowires. So far, there are only small experimental samples of this material, but in the near future, when the production of threads becomes cheap and affordable, they will become the basis for many new technologies.

A nanothread is a one-dimensional structure in the form of a chain of carbon atoms, which is flexible enough to twist it in an arbitrary way, but at the same time strong enough to withstand such deformations. If you take a few nanothreads and tie them into a bundle, you can twist it and get a tiny spring. When compressed, it will accumulate energy, when untwisted, it will release it - this is the good old principle on the basis of which many clockwork mechanisms work.

Modeling showed that a hypothetical storage device made of such a material has a capacity of 1,76 MJ/kg of energy. This is 4-5 orders of magnitude greater than that of steel springs, and three times higher than that of lithium-ion batteries. An additional bonus is that mechanical systems are many times more stable than chemical counterparts, they exclude the risk of fire and detonation. Also, such a drive does not contain toxic substances, and its disposal is not a problem. The scope of such batteries is extremely wide - from space to microimplants.

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Amazon is about to launch a new service - Prime Air. If the buyer chooses this method of delivery of goods from the online store, then within 30 minutes the purchase will be delivered by a drone robot. It is planned to launch this service in American cities in the next 4-5 years.

Amazon CEO Jeff Bezos told CBS about this. He believes that the new delivery method will be introduced to his company within 4-5 years.

Bezos said that the delivery will be fully automated. Human participation will be required only in the warehouse: the employee will need to take the product from the shelf, place it in a container, and then simply put it on the conveyor belt. The drone will automatically pick up the container at the other end of the belt and deliver it to the right address.

A drone delivery service called Prime Air will be a separate option when ordering the product. The delivery time of the goods when choosing a service is no more than 30 minutes.

Prime Air is being developed by Amazon's research department. In addition, the company is negotiating with the FAA - the US Federal Aviation Administration to obtain permission for the commercial operation of drones. Amazon expects the FAA to formulate all requirements by 2015.

Amazon said in a statement about the new service: "One day, Prime Air drones in the air will be as commonplace as trucks on the road."

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