MIT Engineers Just REVEALED A New Battery Using Cement Blocks!

There are true solid-state batteries and then there are solid-state batteries that are just that. Researchers believe they have developed a supercapacitor that is strong enough to serve as a home's foundation or to withstand being run over by EVs while they are being charged.

A new battery substitute derived from very simple elements has been proposed by MIT researchers.

Cement blocks that have been impregnated with a carbon substance resembling soot may be able to store enough energy to run entire homes. According to the experts, the technology may be made commercially available in a few years and a single 3.5-meter block could store 10kWh of energy, enough to power a house for a day.

According to a report written by MIT professors Franz-Josef Ulm, Admir Masic, and Yang-Shao Horn as well as other researchers from MIT and the Wyss Institute for Biologically Inspired Engineering, similar capacitors incorporated into roads might charge cars wirelessly.

The researchers discovered that cement blocks may be made into supercapacitors by adding carbon black, a type of the element present in incompletely burnt material, when the cement hardens. These supercapacitors can carry substantial electrical charges.

With the help of isolated metal conductors, capacitors store electrical charge. The surface area of the conductive material determines how much energy they can store, and the researchers found that adding carbon black to wet cement was a very straightforward way to quickly create a significant surface area.

As the water evaporates during the curing process, carbon black diffuses into the voids left by the water and fills them with its high conductivity. As a result, the eventual solid concrete block develops a network of minuscule, fractal-shaped microfibers that resemble tiny wires and support ever-smaller branches.

The material is then submerged in salt, such as potassium chloride, which serves as an electrolyte and provides the charged particles that build up on the carbon structures. An extremely effective supercapacitor is created by two of these electrodes joined together by a tiny gap or insulating layer.

Masic calls the substance "fascinating" since it combines carbon black, a well-known historical material that was used to write the Dead Sea Scrolls, with cement, the most widely used man-made substance in the world. When you combine these elements in a precise way to create a conductive nanocomposite, which is when things start to get really interesting, you have these materials that are at least two millennia old.

As the mixture hardens, "the carbon black is self-assembling into a connected conductive wire," the author claims.

It is possible to manufacture cement capacitors anywhere in the globe, and the blocks can function with as little as 3% carbon black in the mixture.

The energy shift could be aided by the blocks since energy storage is required globally to balance renewable energy sources like solar and wind power, which cannot be produced simultaneously with demand.

Ulm asserts that there is a critical need for large-scale energy storage, and that current batteries must be replaced since they are expensive and rely on elements like lithium, whose availability is constrained. Because cement is so common, that is an area where our technique is really promising.

The team calculated that a 45 cubic meter material block of nanocarbon-black-doped concrete would have enough capacity to store about 10 kWh of energy, which is believed to be the average daily electricity usage for a household, so remote off-grid homes with batteries in the foundations could operate using windmills or solar panels.

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