One aspect can not be ignored is that
lithium batteries is not suitable for over-discharge, over-discharge of lithium batteries is also a disadvantage. This leads to the following questions.
In the phone, whether it is assessed from a technical point of view or from price considerations, the battery plays a very important position. Until now, the market is selling the phone, the battery has been basically completed using nickel batteries to lithium batteries from the transition. May be due to cell phone battery has just completed a revolution in nickel batteries to lithium batteries, so people are not uniform understanding of lithium, in many cases is not correct to say and practice is quite popular. Therefore, to understand that lithium knowledge, learn the proper use of lithium
compaq presario cq50 battery is necessary.
Types of lithium batteries
Currently used in the secondary market are nickel metal hydride battery (Ni-MH) and lithium-ion (Li-ion) types.
Lithium-ion batteries has been mass production of liquid lithium-ion battery (LiB) and lithium-ion polymer battery (LiP) two. So in many cases, marked on the battery of Li-ion, lithium-ion battery must be. But not necessarily liquid lithium-ion battery, is also possible that lithium-ion polymer battery.
Lithium ion batteries are lithium improved products. Li-ion battery a long time ago, but lithium is a highly active (remember it's position in the periodic table it?) Of the metal, it is not safe when used, often in charge when burning, bursting case, then there is an improved lithium-ion battery, lithium can inhibit the added element of active ingredients (such as cobalt, manganese, etc.) so that lithium really achieve a safe, efficient, convenient, and also will be the old lithium
hp probook 4710s battery basically eliminated. As for how to distinguish them from the battery of the label will be able to identify, lithium battery for Li, lithium-ion battery Li-ion. Now, laptops and mobile phones using the so-called "lithium batteries", in fact, are lithium-ion battery.
The basic structure of modern batteries, including cathode, anode and electrolyte three elements. As a battery, lithium-ion batteries also have these three elements. Generally use lithium-ion technology or inorganic colloidal liquid electrolyte, so the need to accommodate the combustible solid shell of the active ingredient, which increases the
hp elitebook 6930p battery weight and cost, also limit the size and shape flexibility. In general, the liquid lithium-ion secondary battery is a minimum thickness of 6mm, and then reduce it more difficult.
The so-called polymer lithium-ion batteries are the three main structures in at least one or more polymer materials used as the main battery system. A new generation of polymer lithium-ion battery technology in the polymer has a high degree, so the shape can be of thin (the thinnest 0.5 mm), and any area of any shape, greatly improved battery design flexibility , so it can meet the demand, made of any shape and capacity of the battery. Meanwhile, the polymer lithium-ion battery unit of energy than current lithium-ion battery is generally increased by 50% of its capacity, charge and discharge characteristics, safety, operating temperature range, cycle life and other aspects of environmental performance over a large lithium-ion
dell inspiron e1705 battery rate increase.
Currently marketed in liquid lithium-ion (LiB) over-charging the battery in the case, and therefore likely to cause rupture of the fire safety valve case, it is very dangerous, so necessary to ensure that the installation of the battery protection IC circuit does not occur over charge of the situation. The polymer lithium-ion batteries, this type of battery is relatively liquid lithium-ion battery has good resistance to charge and discharge characteristics, so the line outside unprotected IC's requirements can be relaxed. In addition, in charge, the polymer lithium-ion
apple a1175 battery can be charged using constant current IC, and the lithium ion secondary battery used in CCCV (Constant Currert-Constant Voltage) charging time compared with the waiting time can be shortened.
Mobile phone manufacturers to the application of lithium batteries
Although in recent years almost all manufacturers have tended to use lithium-ion battery, but the world's major mobile phone manufacturers the choice of battery or have their own characteristics and habits, such as once in the same historical period:
Nokia: The Ni-MH (nickel-metal hydride) batteries, LiB (liquid lithium-ion) batteries, did not use LiP (polymer lithium-ion) batteries.
Ericsson: The Ni-MH battery, LiB battery, LiP batteries.
Motorola: The Ni-MH battery, LiB battery, did not use LiP batteries.
Not difficult to find, from the earliest use of mobile phones LiP polymer lithium-ion
apple a1189 battery that matter, Ericsson reflect the true nature of their own cell phone technology pioneer. According to the information I find that, at present polymer lithium-ion battery factory for the day * The SONY, Panasonic, GS, several companies in 2000, production reached 21 million, of which 50% of Ericsson mobile phones supporting. Into 2002, today, the lithium-ion battery manufacturers in other mobile phone has also been widely used and popular. However, in polymer lithium-ion battery, but also far from all mobile phone manufacturers in the degree of product to be popular, widely used also to be seen.
On the other hand, although a lot of advantages of lithium-ion battery, but there are also shortcomings, such as charge and discharge times of high prices and less so on. Lithium
acer aspire 5920g battery charge and discharge only 400-600 times, specially modified products, but 800 times. The nickel-metal hydride rechargeable battery can reach more than 700 times, some good quality products up to 1200 times charge and discharge, such a comparison, the nickel-metal hydride batteries live longer than lithium batteries. In addition, the price of nickel-metal hydride batteries is much lower than the lithium batteries. Moreover, strictly speaking, lithium batteries have the same memory effect, but its memory effect is very low, basically negligible.
Hence, there is no perfect battery.
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