Is the mobile phone battery good for lithium power batteries or polymer batteries?

Lithium polymer battery is an upgraded product of lithium-ion battery. Compared with the current popular lithium-ion battery, it has the advantages of large capacity, small size (thin), safety (no explosion), etc. However, due to the entire industrial chain, It takes a certain amount of time to replace it. Its cost (cost) is still relatively high, and it is only used in high-end digital products (ultra-thin notebook computers, etc.).

It is foreseeable that in the next 5-10 years, lithium polymer batteries will replace the existing lithium-ion batteries! In fact, the popularity of lithium polymer batteries in countries such as Japan and South Korea, which is more developed in the electronics industry, has reached A certain level, but China is still relatively backward in this respect, let us wait and see! Waiting for the future, the use of lithium polymer battery mobile phones is cheap, I must replace this more secure mobile phone (battery)!

Lithium polymer battery (Li-polymer, also known as polymer lithium power battery): It has a variety of obvious advantages such as high energy density, smaller size, ultra-thinness, lightweight, high safety, and low cost. Battery. In terms of shape, lithium polymer battery has ultra-thin characteristics, which can be made into batteries of any shape and capacity according to the needs of various products. The minimum thickness of this type of battery can reach 0.5mm. Compared with lithium ion. The characteristics of the battery, lithium polymer battery are as follows:

1. No battery leakage problem, the battery does not contain liquid electrolyte inside, use colloidal solid.

2. Can be made into a thin battery: with a capacity of 3.6V400mAh, its thickness can be as thin as 0.5mm.

3. The battery can be designed in a variety of shapes.

4. The battery can be bent and deformed: the polymer battery can be bent up to about 90°.

5. A single high-voltage: liquid electrolyte battery can only be connected in series with several batteries to obtain a high voltage, and the polymer battery can be made into a multi-layer combination in a single piece to achieve a high voltage because it has no liquid.

6. The capacity will be twice as high as the same size lithium-ion battery.

A lithium polymer battery refers to a lithium-ion battery that is all solid or gel is too electrolyte. Generally, an aluminum-plastic composite film is used as a packaging material. There are currently only two real lithium polymer batteries in the world. One is Japan's SONY, and the other is China's ATL.

A lithium power battery generally refers to an aluminum shell battery, the electrolyte is in a liquid state, and the outer packaging material is an aluminum shell,

Lithium polymer batteries are safer than lithium power batteries. Lithium polymer batteries are upgraded products of lithium-ion batteries. Compared with the current popular lithium-ion battery, it has the advantages of large capacity, small size (thin), and safety (no explosion). However, due to the time required for the replacement of the entire industry chain, its cost (cost) is still relatively high, and it is only used in high-end digital products (ultra-thin notebook computers, etc.).

It is foreseeable that in the next 5-10 years, lithium polymer batteries will replace the existing lithium-ion batteries! In fact, the popularity of lithium polymer batteries in countries such as Japan and South Korea, which is more developed in the electronics industry, has reached a certain level, but China is still relatively backward in this respect. Let us wait and see! In the near future, mobile phones with lithium polymer batteries will be cheaper. I must replace this more secure mobile phone (battery)!

Lithium polymer battery (Li-polymer, also known as polymer lithium power battery): It has a variety of obvious advantages such as high energy density, smaller size, ultra-thinness, lightweight, high safety, and low cost. battery. In terms of shape, the lithium polymer battery has an ultra-thinning feature and can be fabricated into a battery of any shape and capacity in accordance with the needs of various products. The battery can reach a minimum thickness of 0.5mm. Compared to lithium-ion batteries, lithium polymer batteries have the following characteristics:

1. No battery leakage problem, the battery does not contain liquid electrolyte inside, using colloidal solids.

2. Can be made into a thin battery: with a capacity of 3.6V400mAh, its thickness can be as thin as 0.5mm.

3. The battery can be designed in a variety of shapes.

4. The battery can be bent and deformed: the polymer battery can be bent up to about 90°.

5. A single high-voltage: liquid electrolyte battery can only be connected in series with several batteries to obtain a high voltage, and the polymer battery can be made into a multi-layer combination in a single piece to achieve a high voltage because it has no liquid.

6. The capacity will be twice as high as the same size lithium-ion battery.

There is electrolyte in the sub-battery, which is relatively unsafe. The lithium polymer battery uses polymer electrolyte, which has long service life and safety and does not cause safety hazards such as expansion and packaging, so it is definitely a better polymer battery.

Extended information:

Lithium polymer battery

Lithium-ion batteries are classified into liquid lithium-ion batteries and polymer lithium-ion batteries or plastic lithium-ion batteries according to the electrolyte materials used in lithium-ion batteries. The positive and negative materials used in the polymer lithium-ion battery are the same as the liquid lithium ions. The positive electrode material is divided into lithium cobaltate, lithium manganate, ternary material, and lithium iron phosphate material, and the negative electrode is graphite. The working principle of the battery is also basically Consistent.

The main difference is that the electrolyte is different. The liquid lithium ion battery uses a liquid electrolyte, and the polymer lithium-ion battery is replaced by a solid polymer electrolyte. The polymer can be either "dry" or "colloidal". Most of the current polymer gel electrolytes are used.

lithium power battery

A "lithium power battery" is a type of battery using a lithium metal or a lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution. Lithium metal batteries were first proposed and studied by Gilbert N. Lewis in 1912. In the 1970s, M.S. Whittingham proposed and began researching lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal are very demanding on the environment. Therefore, lithium power batteries have not been used for a long time. With the development of science and technology, lithium power batteries have become the mainstream.

Lithium-ion batteries are available in liquid lithium-ion batteries (LiB) and polymer lithium-ion batteries (LiP). So in many cases, the Li-ion on the battery must be a lithium-ion battery. But not necessarily a liquid lithium-ion battery, it may also be a polymer lithium-ion battery. Lithium-ion batteries are an improved version of lithium power batteries. the lithium power battery...4610

Polymer batteries are also lithium power batteries. In general, polymer batteries are relatively safe in lithium power batteries. The principle of a polymer lithium power battery is the same as that of a conventional lithium power battery, except that the electrolyte and the outer casing material are different. Therefore, lithium power batteries are a large class, and polymers are one type of lithium power batteries.

The classification of lithium power batteries is as follows:

1. According to the battery cathode material

A. lithium iron phosphate battery (iron battery)

B. Lithium cobaltate battery (cobalt battery)

C. Nickel-cobalt manganate ternary material (ternary battery)

D. Lithium titanate battery (titanium battery)

E. lithium vanadium phosphate battery (vanadium battery)

F. Other lithium metal oxides. . .

2. Classified by battery shape

A. Square battery (conventional mobile phone battery)

B. Cylindrical battery (18650)

C. Other shaped batteries. . .

3. According to the battery shell material classification

A. Steel shell battery

B. Aluminum shell battery

C. Polymer battery

In addition, the classification of the battery can also be divided into a liquid, solid electrolyte battery according to the form of the electrolyte. According to the assembly method of the battery pole piece, it can be divided into a wound battery and a disc battery. According to the purpose of the battery, it can be divided into mobile phone battery, Bluetooth battery, power battery, energy storage battery and so on.

About polymer batteries. Most of the domestic products are soft-packed batteries, that is, the outer casing material is packaged with the aluminum-plastic film. The real polymer battery, in addition to the outer casing, is still a polymer electrolyte.

Polymer batteries have the following advantages and disadvantages compared to other types of lithium power batteries:

A. High security. The case is packaged in an aluminum-plastic film. In the event of an extreme failure such as a short circuit inside the battery, only the surface will bulge and there is no danger of explosion like a steel case/aluminum case battery. Because the aluminum plastic film is softer and more deformable, it does not cause the gas to accumulate indefinitely inside, so it does not explode.

B. Polymer batteries are easy to make various shapes and can be made very thin. In extreme cases, the battery can be made 1 mm thick. The aluminum plastic film of the polymer battery can be made into the desired shape by simple stamping. In addition, the polymer packaging method uses heat sealing, and the laser welding package of the steel shell/aluminum shell battery is uniquely endowed by nature. The advantages.

C. The anti-puncture strength of the aluminum plastic film is not enough, and it is easy to form angular damage, aluminum plastic film corrosion, liquid leakage, poor appearance and the like.

D. Also because the strength of the aluminum plastic film is not enough, the battery is easily deformed in the production process, causing the four corners of the battery not to be on one surface. This can be solved by adding a high-temperature jig baking process.

For polymer batteries, the softer casing is a bit of a disadvantage, and it is also a disadvantage. For example, in the field of power batteries, the outer casing of the battery needs to have a certain mechanical strength, but in the field of mobile phones, it is obvious that the advantages are more. As for the capacity, cycle, energy density, and other performance, mainly depends on the technical level of each company, after all, polymer batteries are only different materials for packaging.

Therefore, in general, polymer batteries are safer in lithium power batteries, but they are prone to liquid leakage and corrosion of aluminum plastic film. In general, I prefer to think that polymer batteries are better.

The page contains the contents of the machine translation.