A secondary cell delivers electrical energy using an electrochemical process that is reversible. The process is reversed by electrically charging the cell.
The single use cell is the Primary Cell, this converts electrochemical energy into electrical energy.
Common secondary cell chemistries include lithium-ion (see Lithium Ion Chemistry), lead-acid, and nickel-metal hydride.
Needs review: this page is a short stub. It would benefit from expansion covering the main secondary cell chemistries (lead-acid, NiMH, sodium-ion, etc.), typical applications, and how they compare on energy density, cycle life and cost – left flagged rather than guessed at.