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Long-lasting battery with liquid electrodes

23.09.2014

American scientists managed to develop a battery with liquid electrodes. The new battery consists of two liquid electrode layers that are separated by a liquid electrolyte layer. Since the metals and electrolyte in the battery have different densities, this prevents them from mixing.

Prior to this experiment, scientists used liquid magnesium as a substance for one electrode, antimony for the other, and saline as an electrolyte in a liquid battery. But such a device could perform its functions only at a temperature of the order of 700 ° C.

In order to lower the operating temperature of a liquid battery, scientists decided to replace magnesium with lithium, and use its alloys with lead instead of antimony. The melting point of lithium is about 180°C.

The scientists were able to select an antimony alloy that could be in a liquid state at a temperature of 327°C, providing a potential difference between the electrodes.

According to the developers, one of the advantages of liquid batteries is their high durability: liquid electrodes will not break down during a large number of charge / discharge cycles.

Scientists say that even after 10 years of daily charging and discharging, a new battery will retain about 85% of its original capacity.

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Tomatoes are often harvested while still green or slightly pink, so that they ripen during storage or transportation.

Employees of the National Institute for Agricultural Research in Avignon (France) showed that tomatoes ripened in natural conditions are not only tastier, but also healthier.

They have more vitamin C and carotenoids. But if for some reason you have to remove the fruits from the bush ahead of time, then they should not ripen in the dark, but in the light, at 18-25 degrees Celsius. Then the content of useful substances is close to normal.

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