What are the categories of lithium batteries?

The secondary market batteries currently used mainly include the nickel metal hydride (Ni - MH) and lithium-ion (Li-ion) batteries. Lithium-ion battery (LiB) and a liquid polymer lithium-ion batteries(LiP) have been into mass production. In many cases, the battery marked Li-ion, must be a lithium-ion battery but is not necessarily a liquid lithium ion battery. It may be the polymer lithium-ion batteries.

Lithium-ion batteries are lithium battery modified products. Lithium batteries have long ago, but it is a kind of highly active (remember its position in the periodic table? In the water will explode, then the chemical properties of sodium active.)Metal, it is not safe when using, often burning during charging, burst, and then there is the modified lithium-ion battery, joined the inhibit lithium active ingredients (such as cobalt, manganese, etc.) so that the lithium electricity real reached a safe, efficient, convenient, and old lithium batteries has been basically eliminated. As for how to distinguish them, will be able to identify from the battery logo, lithium batteries for Li, lithium-ion battery for Li-ion. Now, laptops and mobile phones using the so-called "lithium battery", are lithium-ion batteries.

The basic structure of modern batteries includes the anode, cathode and electrolyte three elements. As one kind of batteries, the lithium-ion battery also has three elements. General lithium-ion technology using liquid or inorganic gel electrolyte, so need to accommodate combustible solid shell, the active ingredient, this increases the weight of the battery and cost, also limits the size and shape of flexibility. In general, the smallest thickness of liquid lithium ion secondary battery is 6 mm, then the decrease was more difficult.

And the so-called polymer lithium-ion battery is in the three main structure at least one or more than one use of polymer materials as its main battery system.

A new generation of polymer lithium-ion battery has very high on the degree of polymerization of materialized, so the shape can be thin shape is changed (0.5 mm the thinnest) and arbitrary shape, arbitrary area, greatly improving the battery design flexibility, which can meet the needs of the product, made into any shape and the capacity of the battery. At the same time, polymer lithium-ion battery energy per unit of a 50% increase over the current general lithium-ion battery, its capacity, charge and discharge characteristics, safety, working temperature range, the cycle life and environmental performance, and so on are the lithium-ion battery has greatly improved.

Now on the market sales of liquid lithium ion batteries (LiB) in the case of the overcharge, easy to cause the relief valve to crack and the situation of the fire, it is very dangerous, so must add protection IC circuit in order to ensure the battery overcharge situations will not occur. And polymer lithium-ion battery, this type of battery in terms of relative liquid lithium ion battery has good resistance to charge and discharge characteristics, therefore to protect plus IC circuit requirements may be extended appropriately. Moreover, in terms of charging, the polymer lithium-ion battery can use IC constant current charging, and adopted by the lithium ion secondary battery CCCV (constant current-constant voltage) compared to the time needed for charging way can shorten the waiting time of many.

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