Is there any electrical current storage device?

Answer 1

Yes, once current starts going through an inductor, it tends to continue going through that inductor in the same direction -- even if that inductor is completely disconnected from everything else.

Unfortunately, all available inductors ( even superconducting magnetic energy storage systems -- see link below ) store relatively little energy.

You can, however, store the means to produce a current. A battery is such a storage device: when charged, it can produce a current in a conductor.

Also, a capacitor stores an electric charge, which when released will produce a current.

Answer 2

Strictly speaking "current" is not stored ... unless you want to talk about modern, superconducting magnets. What we're able to store, move from place to place, and use when we want it, is either electric charge, or energy in some other form that can be converted to electrical energy. Charge can be stored in a capacitor or a Leiden jar. If you haven't heard of these, that's because these are not effective ways to store useful amounts of electricity for useful lengths of time. Energy can be stored for later use in batteries or springs (on a small scale), or in water raised and stored high off the ground (water towers and hydro-dams on larger scale).

Answer 3

Inductors are considered current storage devices because the magnetic field that is created as current flows through the coil within the device causes the device to resist any change in the rate at which the current flows through it. Since inductors are basically just coils of wire inside they act like closed switches when placed in a DC circuit. However, in a high-frequency AC circuit, an inductor's property of resisting changes in current cause it to act like an open switch.

Answer 4

charges can be stored in capacitor by the principle of electro static induction