Lithium battery applications

With the development of microelectronics technology in the 20th century, miniaturized equipment is increasing day by day, which puts forward high requirements on power supply. Lithium batteries have entered a large-scale practical stage.

Development trend of Nickel–metal hydride battery

Ni-MH batteries are already a mature product. The annual production of Ni-MH batteries in the international market is about 700 million pieces.

Structure and principle of Nickel–metal hydride battery

The positive active material of Ni-MH battery is Ni(OH)2 (called NiO electrode), the negative active material is metal hydride, also known as hydrogen storage alloy (the electrode is called hydrogen storage electrode), and the electrolyte is 6mol/L potassium hydroxide solution.

Pay attention to the maintenance of Nickel–metal hydride battery during use

Pay attention to maintenance when using Ni-MH batteries.

Nickel–metal hydride battery is divided into high-voltage Nickel–metal hydride battery and low-voltage Nickel–metal hydride battery

Low-voltage nickel-metal hydride batteries have the following characteristics: (1) The battery voltage is 1.2~1.3V, which is equivalent to that of nickel-cadmium batteries; (2) The energy density is high, which is more than 1.5 times that of nickel-cadmium batteries; Good performance; (4) can be sealed, strong ability to withstand overcharge and discharge; (5) no dendrite formation, can prevent short circuit in the battery; (6) safe and reliable, no pollution to the environment, no memory effect, etc.

Nickel–metal hydride battery is a kind of battery with good performance

Ni-MH battery is a kind of storage battery with good performance. Ni-MH batteries are divided into high-voltage Ni-MH batteries and low-voltage Ni-MH batteries.