Li-Polymer Battery:

Lithium ion Polymer (Lipo) Battery is employed with li-ion electrolyte and is packed with Aluminum plastic film. Li-polymer batteries offer several advantages. Firstly, it has a great energy density in terms of weight. Secondly, Lipo battery is more flexible in cell sizes and shapes. Finally, it is of higher safety, and with superior stability in over-voltage and high temperature conditions.

Principle and Reactions:

When a lithium-based cell is charging, the lithium is extracted from the anode and inserted into the cathode. When the cell is discharging, the reverse occurs.

Positive reaction   LiCoO₂ → Li1-xCoO₂ + xLi+ + xe-

Negative reaction   xLi+ + xe- + 6C → LixC₆

Total reaction   LiCoO₂ + 6C → Li1-xCoO₂ + LixC₆

Li-ion Battery:

Lithium ion (Li-ion) battery with the features of high energy density, high capacity, light weight and high power. The voltage of cylindrical type is 3.7V and button type is 3.6V. Li-ion batteries are one of the most popular types of rechargeable battery for portable electronics, as its best energy densities, no memory effect, and with a slow loss of charge when not in use.

Principle and Reactions:

When a lithium-based cell is charging, the lithium is extracted from the anode and inserted into the cathode. When the cell is discharging, the reverse occurs.

Positive reaction   LiCoO₂→ Li1-xCoO₂ + xLi+ + xe-

Negative reaction   xLi+ + xe- + 6C → LixC₆

Total reaction   LiCoO₂ + 6C → Li1-xCoO₂ + LixC₆

LiFePO₄ Battery:

Lithium iron phosphate(LiFePO₄ battery) is a type of rechargeable battery with the nominal voltage of 3.2V per cell. Because of its non-toxicity, high abundance of iron, excellent thermal stability, safety characteristics, good electrochemical performance, long cycle life and high specific capacity, it is widely used in electric vehicles.

Key Features:

•  Long cycle life: more than 2000 times (charge and discharge at 1C, 80% capacity retention after 2000 cycles).

•  High safety: no fire and explosion in overcharge test at the voltage up to 30V and in short-circuit test, nail test, and heat shock up to 130℃ test.

•  Good charging and discharging performance.

•  High discharge rate up to 10C.

•  Environmental-friendly: all raw material of the batteries are environmental-friendly.

•  Wide working temperature range: from -10℃ to 60℃, extremely cold and hot weather will not affect its performance.

Application Example:

•  Modular Power

•  Network Power

•  Motive Power

•  Transportation Power

We can provide battery solutions as per request.

Customized designs are available and welcome.

For detailed specification, please consult EEMB sales at global@eemb.com .

Ni-MH Battery:

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-