Energy storage
Energy storage method
Stored energy refers to the process of storing energy through a medium or device and releasing it when needed. Energy storage is also a term in oil reservoirs, representing the ability of reservoirs to store oil and gas.
According to the energy storage method, energy storage can be divided into physical energy storage, chemical energy storage, electromagnetic energy storage three categories, of which physical energy storage mainly includes pumped storage, compressed air energy storage, flywheel energy storage, etc. Chemical energy storage mainly includes lead-acid batteries, lithium-ion batteries, sodium sulfur batteries, flow batteries, etc. Electromagnetic energy storage mainly includes super capacitor energy storage, superconducting energy storage.
Battery energy storage
High-power occasions generally use lead-acid batteries, mainly used for emergency power supply, battery vehicles, power plant surplus energy storage. Low-power occasions can also use rechargeable dry batteries: such as nickel-metal hydride batteries, lithium-ion batteries and so on.
Inductor energy storage
A capacitor is also an energy storage element, and the electrical energy it stores is proportional to its capacitance and the square of the terminal voltage: E = C*U*U/2. Capacitive energy storage is easy to maintain and does not require superconductors. Capacitive energy storage is also very important to provide instant power, very suitable for laser, flash and other applications.
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