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Samsung Full Solid State Battery

14.03.2020

Research scientists from the Samsung Advanced Institute of Technology (SAIT) in London and the Samsung Research Institute of Japan (SRJ) have unveiled long-life solid-state batteries.

Solid-state batteries compare favorably with lithium-ion batteries, as they allow you to increase the amount of stored energy per unit mass. This allows you to create batteries with a higher capacity, using solid electrolytes, which are safer than liquid ones. But there is a problem: Lithium anodes can cause dendrites (needle-like crystals that can form on the anode of a battery during charging) to grow, resulting in reduced battery life and less safety.

To solve the problem, scientists first proposed using a composite layer of silver and carbon (Ag-C) as an anode. This allowed to increase the capacity, service life and overall safety of the prototype solid-state battery. In addition, the prototype turned out to be about 50% smaller in volume than a lithium-ion battery of the same capacity.

Such technologies will contribute to the further development of electric transport. As expected, the corresponding batteries will allow electric vehicles to travel up to 800 km without recharging, and the battery will have more than 1000 charge / discharge cycles.

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The effect of pepper on sleep 02.03.2006

As shown by experiments conducted at the University of Tasmania, hot red chili peppers affect sleep.

Twenty-five volunteers received 30 grams of finely chopped peppers throughout the day for a month. As a result of this diet, the participants of the experiment began to go to bed an average of two hours later and in the morning to get up 20 minutes earlier than before the experiment. And besides, they slept more peacefully, and in the morning they felt more cheerful than usual.

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