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Saturday, January 7, 2012

Notebook battery types and materials:

Notebook battery types and materials:
Laptop batteries are used in four
Kinds: 1. NiCad battery [Ni-Cd Ni-Cd], 2. Nickel metal hydride batteries [Ni-MH Ni-MH], 3. Lithium batteries [lithium Li, Li-ion Li-ion, Li-polymer rechargeable lithium
polymer], 4. fuel cell [Alkaline FC (AFC), phosphoric acid FC (PAFC), molten carbonate FC (MCFC), solid oxide FC (SOFC) and proton exchange membrane
FC (PEMFC), etc.]
Nickel-cadmium batteries (Ni-Cd)
The first notebook to use nickel-cadmium batteries are (Ni-Cd), because Canon Nb-8l Battery technology was not advanced enough, so nickel-cadmium batteries are
Many of the shortcomings of headache, such as: bulky, heavy weight, small size, short life, a memory effect, etc. (My impression is that no one place). These are undoubtedly pursued with the notebook's lightweight, fast performance of the back
Road and Chi. The current nickel-cadmium batteries have been eliminated, and nickel-cadmium notebook also break, and mention it there is not much need.
Nickel-metal hydride battery (Ni-MH)
Ni-MH battery is the most environmentally friendly Canon Eos-300d Battery, focusing ring
Paul countries are vigorously promoting the use of nickel-metal hydride batteries, as easy to recycle, and damage to the environment is minimal. However, compared to nickel-metal hydride batteries and lithium, there are some drawbacks. Long charging time, the weight of a more sedate, than the capacity
Lithium is small, there is the memory effect. It's memory nickel-cadmium batteries, although not as big, but still need to discharge, the user must be exhausted before charging. However, nickel-metal hydride rechargeable battery can reach more than 700 times, some of the quality
Good product charge and discharge up to 1200 times more than lithium battery longevity and the price is also very popular.
Lithium Battery
(Li), lithium-ion battery (Li-ion), lithium polymer rechargeable lithium-ion battery (Li-polymer)

Lithium a long time ago, when it was not safe when used, often
In charge when burning, bursting, perhaps because lithium is too active reason. Then there is the improved lithium-ion battery (Li-ion) by adding the element lithium can inhibit the active ingredient, which is the lithium
Pool of substitute products, it's hidden anode lithium ion can absorb the carbon pole, discharge, lithium into lithium-ion, from the anode to reach the lithium-ion Olympus Camedia C-60 Zoom Battery cathode. Charge, the cathode in lithium atoms into the lithium-ion and electron ionization and
Movement to the anode and the lithium-ion and electronic synthesis of lithium atoms. Discharge, the lithium atoms from graphite crystals into a lithium anode surface ionization ion and electron, and the synthesis of lithium atoms in the cathode. Therefore, the lithium battery with lithium-ion always
Forms and shapes, forms and shapes not to lithium, of course, will not burn, explosion. Lithium ion moves between the anode and cathode, the electrode itself does not change. This is a lithium-ion batteries and lithium batteries is essentially
The difference. So that lithium really achieve a safe, efficient, convenient, and the old lithium also will be eliminated. Distinguish their approach is quite simple: from the Canon Nb-5l Battery of the label can be identified, the identity of lithium as Li, the lithium
Sub-battery Li-ion.
Lithium polymer rechargeable lithium-ion battery (Li-polymer) is
Say
Of the three main structures in at least one or more polymer materials used as the main battery system. In shape, the polymer lithium secondary batteries with lithium ion can be thin, then it can be any size and any shape of
And so a number of advantages, it can meet the demand, made of any shape and capacity of the battery. In thickness, the thickness of polymer lithium secondary Panasonic Nv-gs27 Battery is about 2 ~ 4mm, and the current lithium-ion battery is the minimum thickness
6mm, can be reduced by at least 50% of the thickness, can reach the minimum thickness of about 0.5mm.

Now, laptops and mobile phones using the so-called lithium, in fact, lithium-ion battery. Battery lithium-ion batteries can not be compared with other advantages: high voltage; small size, light weight, high energy; safe and fast charging;
Allows a wide temperature range; discharge current is small, a small memory effect (now some view that there is no lithium-ion Acer Aspire 5720 Battery memory effect, which is a not responsible for the view), no environmental pollution and so on. Of course, also has its own lithium-ion batteries
Deficiencies, that is, the price is high, fewer charge (charge and discharge times it is only 400-600 times, specially modified products, but 800 times. Charge a per day basis, but also the best lithium batteries
It laid off more than two years. ), No interchangeability with Acer Aspire 7730 Battery, voltage changes, the discharge rate of large, rapid decline in capacity, not high-current discharge.

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