What are the wiring lines for lithium battery protection boards?

Lithium battery

A primary battery using a lithium metal or a lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution is different from a lithium ion battery in a rechargeable battery. The inventor of the lithium battery is Edison. 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 batteries have not been used for a long time. With the development of microelectronics technology at the end of the twentieth century, the number of miniaturized devices has increased, and high requirements have been placed on power supplies. Lithium batteries have entered a large-scale practical stage.

Product Categories

Lithium batteries are usually divided into two categories:

Lithium metal battery: A lithium metal battery is generally a battery using manganese dioxide as a positive electrode material, metallic lithium or an alloy metal thereof as a negative electrode material, and a nonaqueous electrolyte solution.

Lithium-ion battery: A lithium-ion battery is generally a battery using a lithium alloy metal oxide as a positive electrode material, graphite as a negative electrode material, and a non-aqueous electrolyte.

Although the lithium metal battery has a high energy density, it can theoretically reach 3,860 watts/kg. However, since it is not stable enough and cannot be charged, it cannot be used as a power battery for repeated use. Lithium-ion batteries have been developed as the main power battery due to their ability to be repeatedly charged. However, because of its combination with different elements, the composition of the cathode material varies greatly in various aspects, leading to an increase in the industry's disputes over the cathode material route.

Generally, the most commonly used power batteries are lithium iron phosphate batteries, lithium manganate batteries, lithium cobalt oxide batteries, and ternary lithium batteries (ternary nickel cobalt manganese).

Conductive coating

The conductive coating is also called pre-coating. In the lithium battery industry, it is usually referred to as a conductive coating on the surface of the positive current collector-aluminum foil. The aluminum foil coated with the conductive coating is called pre-coated aluminum foil or simply coated. Layer aluminum foil, its earliest experiment in the battery can be traced back to the 70s, and in recent years, with the development of new energy industry, especially lithium iron phosphate battery, it has become a popular new technology or new in the industry material.

Some lithium-ion batteries are the third temperature protection line, and some are battery information check lines (such as changing the non-original battery to alert).

Lithium-ion batteries are battery + protection boards. The 3 line will only appear on the protection board, and the battery will always have only 2 lines.

There are two kinds of lithium ion batteries, and the obvious 3.7V is non-phosphorous aluminum and aluminum, which can be directly changed.

The replacement is very simple (note the positive and negative):

1: Remove the original battery pack, and then solder the iron to separate the protection board from the battery.

2: Also remove the protective plate of your new battery and connect the battery to the old protection board.

P+ and P- are connected to the output. B+ is connected to the positive electrode of the battery, and B- is connected to the negative electrode. If it is a multi-section series, the B1 negative pole and the B2 positive pole are connected together, and so on, and the last battery negative pole is connected to Bn-. First solder the wire, and finally connect the battery, do not connect the wrong. If there is no output after completion, remember to use the charger to charge on the charging interface of P+ and P-.

Some lithium-ion batteries are the third temperature protection line, and some are battery information check lines (such as changing the non-original battery to alert). Lithium-ion batteries are battery + protection boards. The 3 line will only appear on the protection board, and the battery will always have only 2 lines. There are two kinds of lithium ion batteries, and the obvious 3.7V is non-phosphorous aluminum and aluminum, which can be directly changed.

The replacement is very simple (note the positive and negative):

1: Remove the original battery pack, and then solder the iron to separate the protection board from the battery.

2: Also remove the protective plate of your new battery and connect the battery to the old protection board.

The page contains the contents of the machine translation.