Aircraft also have to be pure electric? New type of battery makes dream come true

Have you seen a purely electric commercial aircraft? None of us have.

As a battery designer, Luke Workman has an idea that will turn this into reality in the near future. He hopes to adapt the long-distance travel more effectively and efficiently by optimizing existing battery technologies and redesigning the battery layout on the aircraft.

Luke Workman explained to News Atlas his thoughts on battery design and how to help the aviation industry transition to cleaner, more sustainable flight conditions.

First of all, Workman stated that today's electric motors "have a very good effect in the air," and the main problem is encapsulation, which requires as much energy as possible to be stored in the battery pack while minimizing weight. He told News Atlas: “Battery has only 35% of its weight used for power storage. The surface sheet of aluminum-copper alloy is only used for the introduction and export of electric energy. This is a large part of the weight, but it is not conductive material. A large part of the weight can't be used to store energy." So what solution does Workman put forward?

He wanted to use the wing part of the aircraft as a "big battery". More specifically, he wanted to transform the wing into "the surface of the electrode plate, and then proceed through the intersection of the entire wing."

"I came up with a battery design that was far lower in weight and solved the problem of heat dissipation - it just needed a huge, flat surface, say, a supersonic supersonic aircraft wing."

Unlike conventional batteries that conduct energy through the top sheet metal, Workman intends to place large pieces of conductive material together in an ultra-thin double-sided foil layer (aluminum, copper). In doing so, all the electricity will be linked to each other through the surface. Here is an example:

Because the wing needs a sturdy and rational structure, Workman suggested: “We can use the battery as a middle layer of the wing, and then we can use the wing on the surface of the aluminum skin as a collector to send the electrical energy from the battery layer to the motor.” The illustration of the visualization is shown in the figure below:

He also pointed out that because the current small battery has a specific purpose, this "sandwich" idea cannot achieve the same effect. But apply this concept to large-scale projects because of how it spreads. Not only will it be very good, but it's so thin, it also has very little heat. And most of us know that battery temperature regulation is usually a very common topic when discussing batteries.

As an example of a "supersonic" aircraft, in order to practice his ideas on the plane, he quickly developed some estimated technical specifications:

“Given the safety, high life cycle, and other characteristics of existing battery materials, approximately 0.3300 amp-hours can be obtained for each 0.2-mm-thick layer of foil. Nine hundred layers will provide us with 3.3 kV scalar and approximately 44 MWh of battery storage. .

The total weight is about 104,000 kg (about 230,000 pounds). It consists of a high proportion of conductive material and has lower conduction losses than any existing technology, but has a high charge and discharge rate. Finished products made from validated materials can give us 423 watt-hours per kilogram.

Assuming that our wing area is 300 square meters, the foil layer is about 20 centimeters thick, and the top and bottom are each 1 centimeter thick, the greater the battery, the higher the efficiency. ”

In short, the larger the aircraft, the larger the wing and surface area. Therefore, when the plane becomes larger, the effect will be better and more comprehensive. It can be used not only for airplanes but also for other vehicles or hardware structures: buses, trains, trucks, ships, and even power storage.

Via electrek

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