Renewable energies, what is a “hibernation” battery: benefits and functions

The world of energy innovation in this period produces many new inventions and technologies needed to improve the production and storage of renewable energy. Let’s discover the latest battery model devised by PNNL researchers which can be a very useful innovation for immediate application given the instability from the point of view of energy resources.

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Scientists Pacific Northwest Laboratory (PNNL) I managed to create a file drums Known “hibernate‘, which is based on a new one Molten salt technology It seems to be able to retain an extensionEnergy entered into this system. We are talking about newexcellent drums which features a Large accumulation potential I will allow energy storage For much-needed periods, like the ones we live in now.

researchers published PNNL Done in March on the site Cell Reports Physical Science. In this project we see how to battery model He is the size of a hockey puck, and despite his size, he can still catch someone Good amount of energy inside.

The new solution proposed by scientists represents an important step in the accumulation seasonal energyIn fact, thanks to this technology, it can Increase network resistance When a large amount of Alternative energy. there hibernation battery It has the ability to exceed the efficiency and life of batteries produced with today’s technologies used in this field Energetic.

There are many possible applications for this innovation: “hibernate” batteries Can be used in business Improve ability to withstand power outages or power outages during production operations. Another application related toUsing the battery to store energy hydroelectricity produced by flowing water, in fact it is possible to reuse this energy to feed the network when Electricity demand is higher.

How does hibernation battery work?

The process one has to think about in order to understand the performance hibernation battery It is vegetable cultivation. In fact, just as in this case, the extra vegetable production is put into the freezer to be stored and reused at the time of need in the future, in the same way Additional electricity generation is stored in “hibernate” batteries for future use.

Basically, the battery is initially charged and heated until its temperature reaches 180°C, in this way the ions flow throughElectrolyte liquid To make or to invent pure energy (chemical energy). Then it is left for the battery to cool to room temperature, thus generating power Electrolyte hardeningwhich is stable, when there is a need to release energy, it will be heated again for the immediate introduction of stored electricity Previously.

Privacy hibernation battery is there molten salts. These have the peculiarity of being able to adapt to temperatures and change their physical condition. When temperatures are high it appears as a liquid, and when we are at room temperature it turns into a solid.

The results from laboratory tests showed that drums I managed to keep one 92% capacity for about 14 dayswhich is a very positive result of the research.

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PNNL’s goals

It is necessary for PNNL researchers use Non-reactive substances. there hibernation battery The cathode and anode are respectively composed of nickel and aluminum, and in addition there are Molten salt electrolyte To which sulfur is added to improveEnergy Efficiency the battery itself. The other component is the anode and cathode separator, made of Fiber glassResistant to the freezing and thawing cycle used during operations energy storage.

Costs and electricity

How much does it cost and what are the benefits?

To date, the prototype is characterized by a Material cost who swirls around $23 per kilowatt hourHowever, it must be considered that the recording of costs was made prior to the rise in the prices of metals such as nickel.

Due to higher material costs, researchers are testing the use of other metals to expand battery production. The goal is Reduce material costs About 6 dollars per kilowatt houra cost that would reduce competition with existing lithium batteries.

As for the benefits, we can say that so far power capacity Battery approx 260 watt-hours per kilogramIt is clearly superior to lead-acid batteries on the market.

In general, this is an important result for Improving the renewable energy sectorin fact, the “hibernate” batteries It can bring many advantages, such asReduce costs and possibility Restore previously stored energy for future energy needs. Yes to the technological innovation of renewable!

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