Electronics - Voltage and Current - Discussion

eg. of secondary batteries are, the battery which we use in mobiles

Primary batteries or Disposable batteries are intended to be used once and discarded. These are most commonly used in portable devices.

The battery used in car is secondary type and it can be recharged, the cell used in torch is primary type and it can't be recharged.

What is the meaning of disposable?

(disposable) Anything which is used once and destroyed.

Primary battery is used once time and secondary battery used again and again.

Primary batteries are used in watches and radio etc. Secondary batteries are used in cell phones.

A primary battery can discharge once only, while a second battery is rechargeable. When discharge a rechargeable battery, its electrode volume and structure cause a reversible change. Therefore the design of a rechargeable battery must be adequate to adjust these changes. Since a primary battery internal structure is simpler, it does not have to accommodate reversible volume changes. The primary battery has bigger quality ratio and volume ratio than rechargeable battery, however it has a far bigger impedance, consequently the load capability is lower. Furthermore self-discharge of a primary battery is far lower than secondary one.

Are there any examples for charged once, stored indefinitely?

Why primary batteries can't be recharged?