Which one is better for mobile power, polymer battery or lithium ion battery?

Lithium polymer battery is lithium ion battery upgrading products. Relative to the lithium ion battery in fashion now, it has a large capacity, small size (thin), good security (no explosion), etc. However, because of the whole industry chain and upgrading, its cost is still relatively high, so it only used in high-end digital products (ultrathin laptop computers, etc.).

Predictably, in the next 5-10 years, lithium polymer battery will replace the existing lithium-ion batteries! In fact, in the electronics industry more developed countries such as Japan and South Korea the popularity rate of lithium polymer battery has reached a certain level, only in this respect is relatively backward in our country, let us wait and see!, etc. in the near future with lithium polymer battery cell phone cheaper, I have to change a new cell phone this safer (battery)!

Lithium polymer battery (Li - polymer, also known as the polymer lithium battery) : with high energy density, miniaturization, ultra-thin, lightweight, and high safety and low cost, and other obvious advantages, is a new type of battery. In shape, lithium polymer battery with ultra-thin characteristics, can match the needs of the various products, made into any shape and the capacity of the battery. The battery can achieve the minimum thickness of 0.5 mm. The relative to the lithium ion battery, lithium polymer battery characteristics are as follows:

1. No battery leakage problems, its inside the battery does not contain liquid electrolyte, the use of colloidal solids.

2. Can be made into thin battery: 3.6 V400mAh capacity, its thickness can be thin to 0.5 mm.

3. The battery can be designed into various shapes.

4. The battery can be bending deformation: polymer battery maximum bending around 90 °.

5. Can be made into a single high voltage: liquid electrolyte battery only with the number of cells in series with high voltage, and the polymer batteries as there is no liquid itself, can be made within the single star multilayer combination to achieve high voltage.

6. Capacity will is more than double that of the same size of lithium ion batteries.

First of all, from the structure, should be the full name of lithium polymer batteries, lithium-ion polymer battery, it seems, lithium polymer battery is also a kind of lithium ion batteries. Is the biggest difference is that both the electrolyte is different, the internal use of lithium ion battery is a liquid electrolyte, and polymer lithium ion batteries with solid polymer electrolyte as a substitute for, the polymer can be solid, can also be a semi-solid (gel).

Secondly, from the appearance, at present the majority of mobile power supply that is sold on the market is the use of cylindrical (18650) of the lithium ion battery or block two lithium polymer batteries. Therefore, when we choose mobile power, if the product outer packing not specified the type of batteries, so you can simply by the thickness of the product itself to its internal the type of battery for a general understanding.

Can say after years of development, the lithium ion battery technology is relatively mature, mass production has made the manufacturing cost is very low. So the lithium ion battery is the price advantage more than lithium polymer batteries. That is why most of today's devices such as laptop computers will use this batteries.

Due to the use of liquid electrolyte of lithium ion in the case of overcharge (overcharge), will make its internal pressure surge, so in order to avoid the sealed metal shell exploded, usually this kind of battery will be in the top 18650 is equipped with a safety valve, when the battery internal pressure is too large, the top safety valve will automatically pop up, to have the effect of decompression. When the relief is after the pop-up, internal leaking lithium ion batteries contact with oxygen in the air, and still can appear the situation of the fire.

Compared to the use of liquid electrolyte for lithium ion batteries, the use of solid polymer electrolyte of lithium polymer battery in shape has the characteristic of ultra-thin, theory of minimum thickness of 0.5 mm, and the characteristics of arbitrary shape and arbitrary area. Greatly improved the characteristics of the battery model flexibility, thus can make any better shape and the capacity of a new generation of lithium batteries.

So, to use this kind of lithium ion batteries, electronic products, on its internal charge and discharge protection IC has very high requirements. But with many years development of lithium ion battery, whether the design of the battery itself or other protection IC technology are very mature, as long as in the daily use, we can do it the right to use and avoid the phenomenon of cell was hard pierced, 18650 batteries are very safe, otherwise on the market most of the laptop will not use the battery.

If in a strict sense, lithium polymer battery in the anode, cathode and electrolyte and working principle and the use of liquid electrolyte of lithium ion battery is the same, the only difference is the diaphragm and the different packing material, therefore, fundamentally, lithium polymer battery is also a kind of lithium ion batteries.

Summary: in fact whether steel shell or soft package lithium-ion batteries, lithium-ion batteries on the safety performance is very good, after all, the current lithium-ion battery production technology is already very mature, as long as in daily use to avoid high temperature, short circuit and overcharge, piercing, and so on and so forth, to be able to avoid the "bang", the occurrence of accidents such as fire. We often call for the lithium ion battery and lithium polymer battery, both have their respective advantages and disadvantages, if more biased towards the product price, the choice of the 18650 battery, if more towards the appearance of the mobile power and volume, so the price is a bit expensive lithium polymer batteries are preferred.

Whether steel shell lithium-ion battery mobile power or soft package lithium-ion battery mobile power, on the safety performance is very good, after all, the current lithium-ion battery production technology is already very mature, as long as in daily use to avoid high temperature, short circuit and overcharge, piercing, and so on and so forth, are able to avoid what we call "bang", the occurrence of accidents such as fire. We often call for lithium ion battery for mobile power and lithium polymer battery mobile power, both of which have their respective advantages and disadvantages, if you prefer to move the power price, the choice of the 18650 battery, if you prefer to appearance and volume of mobile power supply, so the price is a bit expensive lithium polymer batteries are preferred.

1. The lithium ion battery is characterized by light weight, easy to carry, use lithium ion transfer to complete charge and discharge, general with mixed lithium metal oxide as an electrode. It can be recharged, many mobile phone and computer batteries, are generally lithium ion batteries. This kind of battery to stay away from heat source, prevent sun point-blank, charging appropriately, but not with, who will take care of the battery has greatly improved durability.

2. Lithium polymer battery is characteristic of high energy density, can be ultra-thin, and its own internal material is solid, or colloidal solids, under the condition of the battery broken, does not leak liquid. And the plasticity is very strong, can adapt to different design needs. Under the same circumstances, lithium polymer battery performance 10% higher than the lithium ion battery, but the relative production cost is higher also.

Green vegetables radish, of course, his taste, everyone has his be fond of, choose their favorite charging treasure, but after I read this, you should know how to choose suits own, a lot of people in choosing a charging treasure, may look at the size, commonly, after all, is too big, because it's heavy, go out is not convenient to carry, especially for girls, to practical, mobile phone charge it with electricity, several times. When choosing to buy charging treasure, therefore, should according to their own specific needs to choose the appropriate, to consider the practicality, portability, effective capacity, as well as the shape and so on various aspects, combined with their own needs, looking for a good focus, to choose their own satisfaction of charging treasure, meet your specific needs.

To remember: we cannot get two things together, so try to choose a balance. Consider the most important demand, other aspects are the secondary auxiliaries, so that you don't need to think too much or regret after buying.

The page contains the contents of the machine translation.