Advantages and disadvantages of Li-ion battery

Nov. 24, 2010 - PRLog -- Li-ion battery parts

(1) the upper and lower battery cover
(2) anode - lithium cobalt oxide active material
(3) diaphragm - a special kind of composite film
(4) negative - active substances for the carbon
(5) organic electrolyte
(6) Battery Shell (divided into two kinds of steel and aluminum)

What are the advantages of Li-ion battery?

(1) single battery voltage up to 3.6-3.8V:
(2) large specific energy, the actual ratio of current to achieve energy 100-115Wh/kg and 240-253Wh / L (2 times the Nl-Cd, 1.5 times higher than Ni-MH), the future, as technological development, the specific energy up to 150Wh/kg and 400 Wh / L
(3) long cycle life, can reach 500 times more than normal, or even 1000. For a small electrical current discharge, the battery lifespan will double the electrical competitiveness.
(4) safety performance is good, pollution-free, no memory effect. As the predecessor of Li-ion battery, because lithium dendrite is easy to form a short circuit, reducing its application areas: Li-ion does not contain cadmium, lead, mercury and other elements of the environment pollution: Some processes (eg sintering) of the Ni-Cd battery is a major drawback for the existence of "memory effect", seriously hindered the use of batteries, but Li-ion does not exist at this problem.
(5)little self-discharge
Room temperature, fully charged Li-ion storage a month after the self-discharge rate of about 10%, much lower than Ni-Cd of 25-30%, Ni, MH of 30-35%.

Li-ion also has some disadvantages, such as:

(1) battery costs are higher.
Mainly in the high price of LiCoO2 (Co less resources), electrolyte purification difficult.
(2) can not be a large current discharge.
As the organic electrolyte system, and other reasons, other types of battery internal resistance is relatively large. And called for a smaller discharge current density, the general discharge current 0.5C below, is only suitable for use in medium and small electrical current.
(3) the need to protect the line control.
A, overcharge protection: battery charge will undermine the positive impact of the structure of the performance and life; while the overcharge to the electrolyte decomposition, the internal pressure is too high and cause leakage and other problems; it must be under constant voltage 4.1V-4.2V charge;
B, over-discharge protection: over-discharge recovery of active substances will lead to difficulties, they also need protection circuit control.

Hot sale batteries and adapters:

Dell inspiron 1525 adapter    
http://www.shop-batteries.com/laptop-ac-adapter/dell-insp...
HP pavilion zv5000 battery   
http://www.sales-battery.com/laptop-batteries/hp-pavilion...
SONY NP-FS11 Battery   
http://www.sales-battery.com/digital-camera-batteries/son...

# # #

The Second Largest Battery Supplier On US Market

We are capable to provide High Quality laptop batteries, camcorder Batteries, camera batteries, adapters and chargers in United States . 30% discount now !!!

URL : http://www.sales-battery.com