On the cell phone lithium battery of knowledge(2)

In mobile phones, both from a technical point of view or from the assessment of price considerations, the battery occupy an important position. Until now, the market is selling mobile phones in use has been basically completed the battery from nickel batteries to lithium batteries transition. Perhaps because of mobile phone battery has just completed a nickel batteries to the lithium battery revolution, so people's understanding of lithium batteries are not uniform, in many cases is not correct to say and practice is quite popular. Therefore,Hp laptop battery
to understand that the lithium batteries have a good grasp of the proper use of lithium batteries is necessary.

1, lithium battery types:

Currently on the market used mainly nickel-metal hydride secondary battery (Ni-MH) and lithium-ion (Li-ion) types. Lithium-ion batteries have been mass production of liquid lithium-ion battery (LiB) and polymer lithium-ion battery (LiP) two kinds. Therefore, in many cases, the battery on the mark of the Li-ion must be the lithium-ion battery. But not necessarily that of liquid lithium-ion battery,HP 346970-001 Battery, HP HSTNN-DB02 Battery, HP HSTNN-UB02 Battery also possible that the polymer lithium-ion battery.

Lithium-ion battery is a lithium battery improved products. Lithium batteries have a long time ago, but lithium is a highly active (remember it's location in the periodic table do?) Of metal, it is not very safe when used often in charge when burning, burst situation, then there is an improved lithium-ion batteries, lithium can inhibit the added element of active ingredients (such as cobalt, manganese, etc.) so that lithium really achieve safe, efficient, convenient, while the old lithium batteries also will be basically eliminated. As to how to distinguish them from the battery's label will be able to identify, lithium battery for Li, lithium-ion battery for Li-ion. Now, laptops and cell 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 kind of battery,HP 346970-001 Battery, lithium-ion battery also has these three elements. General lithium-ion technology uses a liquid or inorganic gel electrolyte, requiring a solid combustible shell to accommodate the active ingredient, which increases the battery weight and cost, but also limits the size and styling flexibility. In general, liquid lithium-ion secondary battery is a minimum thickness of 6mm, a further reduction on the more difficult.

The so-called polymer lithium-ion batteries are the three main structures in at least one or more use of polymer materials as its main battery system.

A new generation of polymer lithium-ion polymer battery technology is already very high degree, so the shape can be of thin (the thinnest 0.5 mm), of any size and any shape of greatly increased battery Flexible Design , so it can meet the demand, made any shape and capacity of the battery. At the same time, polymer lithium-ion battery unit of energy than the current lithium-ion batteries in general increased by 50%, of its capacity, charge-discharge characteristics, security, operating temperature range, cycle life and environmental performance in such aspects as compared with large lithium-ion battery rate increase.

Currently marketed in liquid lithium-ion (LiB) over-charging the battery case,HP 346970-001 Battery, HP HSTNN-DB02 Battery, HP HSTNN-UB02 Battery and therefore likely to cause safety valve ruptured fire situation, it is very dangerous, so the need to protect the IC circuit installed to ensure that the battery does not happen over - charge of the case. The polymer lithium-ion batteries, this type of battery lithium-ion batteries in terms of the relative liquid has good resistance to charge and discharge characteristics, we add the external IC circuit protection requirements may be appropriately relaxed. In addition, in the charge, the polymer lithium-ion batteries can take advantage of IC constant current charge, and lithium-ion secondary battery used in CCCV (Constant Currert-Constant Voltage) charge means the time required for comparison, HP HSTNN-DB02 Battery, can shorten a lot of waiting time.

2, mobile phone manufacturers the application of lithium batteries

Although in recent years almost all manufacturers have a preference for lithium-ion batteries, but the world's major mobile phone manufacturers the choice of the battery still has its own characteristics and habits, for example, has been in the same historical period:

Nokia: use of Ni-MH (Ni-MH) battery, LiB (liquid lithium-ion) batteries, did not use LiP (polymer lithium-ion) batteries.

Ericsson: The Ni-MH battery, LiB battery, LiP batteries.

Motorola: use of Ni-MH battery, LiB batteries, not used LiP batteries.

Not difficult to discover, from a cell phone the first choice of LiP polymer lithium-ion batteries on this matter, Ericsson demonstrated the true nature of their own cell phone technology pioneer. According to the information I find suggest that the current manufacturing polymer lithium-ion batteries in Japan SONY,HP HSTNN-UB02 Battery, Panasonic, GS and so several companies in 2000 production reached 21 million, of which 50% of Ericsson's mobile phone parts. Today, entering in 2002, lithium-ion battery in the other cell phone handset manufacturers have a wide range of application and popularization. However,HP 346970-001 Battery, HP HSTNN-DB02 Battery, HP HSTNN-UB02 Battery the use of polymer lithium-ion battery, but is also far from reaching the product of all mobile phone manufacturers has been popularized in the extent to take some time before wide application.

On the other hand, although the advantages of lithium-ion battery lot, but there are shortcomings, such as charge and discharge times of high prices and less and so on. Lithium battery charging and discharging of the number of only 400-600 times, specially modified products, but many times 800. The nickel-metal hydride rechargeable batteries for more than 700 times to achieve certain quality and a good product charge and discharge up to 1,200 times, so that a comparison, the nickel-metal hydride battery live longer than the lithium batteries. In addition, the price of nickel-metal hydride batteries are also much lower than the lithium batteries. Moreover, strictly speaking, lithium batteries have the same memory effect, except that it's very low memory effect, this is basically negligible.

View of this, there is no perfect battery.