Energy storage technology is the technology of storing energy through a device or physical medium for later use when needed. The following is a simple popularization of the technical principles of pumped storage, gravity energy storage, lithium-ion energy storage, sodium-ion energy storage, liquid flow energy storage, flywheel energy storage, and compressed air energy storage.
1.Pumped hydro storage: The excess power of the grid is used to lift water to the energy storage pool at a high place, and when energy needs to be released, the water is reversed from the high place to the low place, and converted into electric energy output through a water turbine.
2.Gravity energy storage: Uses the difference in elevation to convert electrical energy into gravitational energy. When energy needs to be released, the gravitational energy is converted into electrical energy output by controlling the descent of the weight.
3.Lithium-ion energy storage: The property of lithium ions to be embedded and released back and forth between the positive and negative electrode materials to store and release electrical energy.
4.Sodium-ion energy storage: Similar to lithium-ion energy storage, but sodium-ion energy storage uses the embedding and release of sodium ions to store and release electricity, compared with lithium-ion energy storage, sodium-ion energy storage has a lower cost and higher energy storage density.
5.Flow Energy Storage: An energy storage tank that uses electrical energy to pump liquids to high altitudes, converting the liquid through a turbine into electrical output when energy needs to be released.
6.Flywheel energy storage: By converting electrical energy into rotational kinetic energy, a high-speed rotating flywheel stores energy. When energy needs to be released, the rotational kinetic energy is converted into electrical energy output by reversing the direction of the flywheel's rotation.
7.Compressed air energy storage: The electric energy is used to compress the air into the gas storage tank, and when the energy needs to be released, the compressed air is used to release the energy through the turbine to convert the kinetic energy of the compressed air into electrical energy output.
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