Akku

Description: A rechargeable battery is a device for storing electrical energy in which the internal electrochemical processes are reversible. Rechargeable batteries can release the energy stored in them and then be recharged by connecting them to an electric Power supply. Rechargeable batteries come in different designs and sizes. Although larger sizes can support higher current intensities, the voltage supplied depends on the Design, that is to say the materials used. Since a relatively high output voltage is required in many technical applications, rechargeable batteries are connected in series to produce a cumulative voltage from the individual cells. Thanks to their simple, reliable and economical design, lead batteries are in widespread use, but they exhibit lower energy densities than newer types of batteries. Nickel-metal hydride batteries produce far better results. Lithium-ion and lithium-polymer batteries have been popular options in consumer electronics for a number of years now. They deliver high energy densities and can be recharged with virtually no memory effect, which is the process whereby the original usable capacity of a battery declines after it has been charged and discharged several times.