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 Battery
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 equipment: 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
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