Nickel-Metal Hydride (Ni-MH) battery is a kind of rechargeable battery with nominal voltage of 1.2V, which has three types: cylindrical, prismatic and button-type

Ni-MH batteries are designed to meet the requirement for increasingly higher levels of energy demanded by today’s electronic products.

Reaction:
The negative electrode reaction occurring in a Ni-MH cell is
H2O + M + e- → OH- + MH

The charge reaction is read left-to-right and the discharge reaction is read right-to-left. On the positive electrode, nickel oxyhydroxide (NiOOH) is formed.
Ni(OH)2 + OH- → NiO(OH) + H2O + e-

Cylindrical Type

Application:

Communication devices: cordless telephone, mobile phone, interphone.
Audio and video equipments: portable camcorder, Walkman, DVD, DVD, TV.
Information devices: notebook, PDA, portable facsimile apparatus.
Household appliances: electric shaver, electric toothbrush, massage device, portable vacuum cleaner.
Metering instruments.
Emergency light and security systems.
Electric toys.
Electric tools.

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Button Type and Prismatic Type

Application:

Automotive Electronics
Server, Computer, Mobile Light
Emergency Light, Solar Light
Health Care Devices
Consumer Electronics
Memory Backup
Real Time Clock

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