Soft bag battery material aluminum plastic composite film -Lithium - Ion Battery Equipment
The characteristics and needs of soft -pack lithium -ion battery material aluminum -plastic film. Aluminum -plastic film is a link with high technical difficulty in the field of lithium -ion battery material, and the comprehensive gross profit margin can reach more than 40%. There are three important types of lithium -ion battery packaging, namely cylindrical, square and soft bag. Compared with the same capacity steel shell lithium -ion battery, the weight of the same capacity is 40%lighter than the aluminum shell lithium ion battery, and can save more than 20%at the same weight.
Soft bag lithium -ion battery material characteristics of aluminum -plastic composite membrane
Aluminum -plastic film is the core material of soft bag battery, which is a key purpose about the lightweight of the battery. Compared with packaging materials such as steel shells, aluminum shells or plastic shells, the aluminum -plastic film has the advantages of light quality, thin thickness, and flexible appearance design, and is gradually becoming the mainstream of the market.(Lithium - Ion Battery Equipment)
Aluminum -plastic film is one of the key materials for soft packaging lithium battery packaging. It plays the purpose of protecting the internal battery component materials. It has strict requirements in terms of blocking, cold stamping, puncture resistance, chemical stability, and insulation. Compared with cylindrical and square aluminum shells, the soft bag battery has obvious advantages in energy density, safety and flexibility, and has been widely used in the fields of 3C consumer, new energy vehicles and energy storage.
At present, the thickness of conventional aluminum plastic films on the market is generally divided into three gears of 88 μm, 113 μm, and 153 μm. Among them, 86 μm and 113 μm are used for consumer electronics, and 153 μm is used in the field of new energy vehicle power lithium -ion batteries and industrial energy storage fields.
The depth of the domestic aluminum plastic film is about 5mm, and the foreign ones are 8mm or even 15mm. There is still a certain gap with foreign products. Especially for reaction conditions and accuracy control, this high -precision material manufacturing process is often a thousand miles away, and the difficulty of process control is reflected in the slightest.
As an important part of a soft -packed lithium -ion battery, the upstream is important as the four major structures to form the raw nylon film, aluminum foil, CPP and adhesive. The application area of soft bag battery.
The disadvantages of my country's aluminum -plastic composite film
1. The surface treatment process of aluminum foil is backward, and the pollution is largely polluted with water -washing oil and "chromichydride" passivation. The water has surface tension, and the oil treatment of the aluminum foil micro -hole is not clean, causing defects in the subsequent composite process.
2. The aluminum foil after water treatment will appear "hydrogen", which causes domestic aluminum -plastic composite membrane to compromise to Japan.
3. CPP polymer is directly poured on the aluminum foil that is not stretched out on the surface. The high -heat polymer encounters the surface of the high heat -conducting aluminum foil and quickly curls.
4. The surface of the aluminum foil is not coated with the UV layer, which causes the aluminum foil to be very insufficient. The dry composite is easy to wrinkle. It cannot make a wide range of products. The waste rate is extremely high.
Soft bag lithium ion battery material aluminum -plastic composite film market demand
The demand for lithium -ion batteries rises side by side with the penetration rate of soft bags. In 2020, the soft bag penetration rate is about 41%, and the demand for soft bag battery will reach 59GWh and GAGR will be 35%. The aluminum -plastic film market has risen at a high speed, and import substitution accelerates. The global aluminum -plastic film market and technology have been monopolized by minority Japanese and Korean companies, with a domestic rate of only 5%, and the import alternative space is very large.
The price of lithium -covered battery is highly important due to the high cost due to core materials (especially aluminum -plastic film) relying on imports, and the degree of automation is low, resulting in a low rate of good products, and there are many secondary products and no digestive channels. The root cause is caused by immature production technology. As the aluminum -plastic film gradually achieves domestic alternatives, the soft -pack lithium -ion battery industry chain has gradually matured, and the cost of soft -packed batteries gradually decreases, and the probability will drive the penetration rate to rise.
Soft bag lithium -ion battery material characteristics of aluminum -plastic composite membrane
Aluminum -plastic film is the core material of soft bag battery, which is a key purpose about the lightweight of the battery. Compared with packaging materials such as steel shells, aluminum shells or plastic shells, the aluminum -plastic film has the advantages of light quality, thin thickness, and flexible appearance design, and is gradually becoming the mainstream of the market.(Lithium - Ion Battery Equipment)
Aluminum -plastic film is one of the key materials for soft packaging lithium battery packaging. It plays the purpose of protecting the internal battery component materials. It has strict requirements in terms of blocking, cold stamping, puncture resistance, chemical stability, and insulation. Compared with cylindrical and square aluminum shells, the soft bag battery has obvious advantages in energy density, safety and flexibility, and has been widely used in the fields of 3C consumer, new energy vehicles and energy storage.
At present, the thickness of conventional aluminum plastic films on the market is generally divided into three gears of 88 μm, 113 μm, and 153 μm. Among them, 86 μm and 113 μm are used for consumer electronics, and 153 μm is used in the field of new energy vehicle power lithium -ion batteries and industrial energy storage fields.
The depth of the domestic aluminum plastic film is about 5mm, and the foreign ones are 8mm or even 15mm. There is still a certain gap with foreign products. Especially for reaction conditions and accuracy control, this high -precision material manufacturing process is often a thousand miles away, and the difficulty of process control is reflected in the slightest.
As an important part of a soft -packed lithium -ion battery, the upstream is important as the four major structures to form the raw nylon film, aluminum foil, CPP and adhesive. The application area of soft bag battery.
The disadvantages of my country's aluminum -plastic composite film
1. The surface treatment process of aluminum foil is backward, and the pollution is largely polluted with water -washing oil and "chromichydride" passivation. The water has surface tension, and the oil treatment of the aluminum foil micro -hole is not clean, causing defects in the subsequent composite process.
2. The aluminum foil after water treatment will appear "hydrogen", which causes domestic aluminum -plastic composite membrane to compromise to Japan.
3. CPP polymer is directly poured on the aluminum foil that is not stretched out on the surface. The high -heat polymer encounters the surface of the high heat -conducting aluminum foil and quickly curls.
4. The surface of the aluminum foil is not coated with the UV layer, which causes the aluminum foil to be very insufficient. The dry composite is easy to wrinkle. It cannot make a wide range of products. The waste rate is extremely high.
Soft bag lithium ion battery material aluminum -plastic composite film market demand
The demand for lithium -ion batteries rises side by side with the penetration rate of soft bags. In 2020, the soft bag penetration rate is about 41%, and the demand for soft bag battery will reach 59GWh and GAGR will be 35%. The aluminum -plastic film market has risen at a high speed, and import substitution accelerates. The global aluminum -plastic film market and technology have been monopolized by minority Japanese and Korean companies, with a domestic rate of only 5%, and the import alternative space is very large.
The price of lithium -covered battery is highly important due to the high cost due to core materials (especially aluminum -plastic film) relying on imports, and the degree of automation is low, resulting in a low rate of good products, and there are many secondary products and no digestive channels. The root cause is caused by immature production technology. As the aluminum -plastic film gradually achieves domestic alternatives, the soft -pack lithium -ion battery industry chain has gradually matured, and the cost of soft -packed batteries gradually decreases, and the probability will drive the penetration rate to rise.
