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Method 1: The slurry is made by mixing specialized solvents and adhesives with powdered positive and negative active substances, and stirring them evenly at high speed to produce a slurry like positive and negative active substance.

Method 2: Apply the slurry evenly on the surface of the metal foil, dry it, and make positive and negative electrode plates respectively

Method 3: Assemble the battery in the order of positive electrode, separator, negative electrode, and separator from top to bottom. After being wound to form the battery core, it is then injected with electrolyte, sealed, and other processes to complete the battery assembly process and produce the finished battery.

Method 4: Use specialized battery charging and discharging equipment to conduct charging and discharging tests on finished batteries. Test each battery and select qualified finished batteries for delivery

Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and non-aqueous electrolyte solutions. The earliest scientist to invent lithium batteries was Edison. Of course, people are no longer unfamiliar with lithium batteries, especially after their widespread application in the fields of automobiles, electric vehicles, and other transportation vehicles, people's attention to lithium batteries has increased to a higher level.

Classification of lithium batteries

1. Lithium batteries are usually divided into two categories based on their internal materials:

Lithium metal batteries: Lithium metal batteries generally use manganese dioxide as the positive electrode material, metallic lithium or its alloy metal as the negative electrode material, and use non-aqueous electrolyte solutions.

Lithium ion batteries: Lithium ion batteries are generally batteries that use lithium alloy metal oxides as the positive electrode material, graphite as the negative electrode material, and non-aqueous electrolytes.

Although lithium metal batteries have a high energy density, theoretically they can reach 3860 watts per kilogram. However, due to its unstable nature and inability to charge, it cannot be used as a power battery for repeated use. And lithium-ion batteries, due to their ability to charge repeatedly, are being developed as the main power battery. However, due to the combination of different elements, the performance of the cathode materials composed of them varies greatly in various aspects, leading to increased disputes in the industry over the route of cathode materials.

The most commonly mentioned power batteries include lithium iron phosphate batteries, lithium manganese oxide batteries, lithium cobalt oxide batteries, and ternary lithium batteries (ternary nickel cobalt manganese)

2. Classified by purpose; It can also be divided into two categories:

The first one is digital batteries, which are the phones, tablets, mobile power supplies, and so on that we use in our daily lives. These are all digital batteries.

The second type is power batteries, which are used in Tesla, BYD, and other new energy electric vehicles, as well as drones and other products. These batteries require a high instantaneous current, and digital batteries cannot meet the high instantaneous current. Therefore, this type of battery is also called high rate batteries, which are more expensive than digital batteries.

3. According to the shell material, it can be divided into three categories:

The first type, steel shell batteries, as the name suggests, have a steel shell.

The second type is aluminum shell batteries, and similarly, the shell is made of aluminum material.

The third type is polymer batteries, where the outer shell is made of a polymer material, mostly silver, and a few manufacturers make it black, which is known as black skin in the industry.

4. There are also three types of shapes:

The first type is cylindrical batteries, which are widely used, such as 1865026650 and so on. These are generally used in combination, and those with fewer combinations can be used as digital products, such as early laptops, which usually had 8 18650s, mobile power supplies, ranging from one to five or six combinations, and Tesla's more than 7000 series parallel combinations of 18650s.

The second type is square batteries, which are mostly polymer batteries because they have good ductility and can be made into many shapes. The length, width, and height can be adjusted freely. Nowadays, most digital products use this type of battery.

The third type is irregular batteries, which are some strange shaped batteries that need to be matched according to the product's needs. For example, popular smart wearable products such as smart bracelets are circular, so the batteries are also made into circular shapes.

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