Use and Assembly of Polymer Lithium Battery Core

The polymer lithium battery is a kind of lithium battery with a gel shape and a soft packaging. It is often referred to as a soft lithium battery in the civilian market. This makes the lithium battery core different from the ordinary Zhejiang single-core lithium battery liquid lithium ion battery. In the same place, there are some special precautions. The following points of note are given to the incorrect practices of single-core lithium battery suppliers that may appear during the use and assembly of the core.

First, in the use of electric cores, including aluminum plastic composite film, top sealing edge(polar end sealing edge), side sealing edge, pole handle protection and measures to avoid mechanical impact, short circuit.

1, aluminum plastic composite film packaging protection: mainly to avoid being stabbed by sharp parts and damaged. To this end, the surrounding environment of the battery should be cleaned up from time to time, and sharp parts should not be contacted or collided with the core. When used, gloves can be worn to avoid fingernail scratches on the surface of the core.

2, top sealing edge and side sealing edge protection: In order to avoid damage to the top sealing edge and side sealing edge of single-core lithium battery price, and destroy the sealing effect, bending top sealing edge and side sealing edge should be prohibited; At the same time, the electric core design must adopt reliable insulation isolation measures to avoid the negative electrode and aluminum plastic composite membrane butt short circuit.

3, pole handle protection: Polymer lithium battery core positive terminal leads the terminal to use the aluminum pole handle, negative pole leads the terminal uses the nickel pole handle. Due to the thin handle, bending should be prohibited; At the same time, it is necessary to avoid contact between the pole handle and the aluminum plastic composite membrane in the production process, and strictly isolate it with a sleeve membrane.

4, avoid mechanical impact, such as falling, hitting, bending the core and accidentally trample the battery.

It is forbidden to short circuit the positive and negative poles with metal objects and wires.

Second, after a core is completed, the next step is to correctly combine with the shell and the core protection circuit module to make it a polymer battery. The precautions in this process are:

1, shell design:(1), enough mechanical strength to avoid external force mechanical damage,(2), when the core is installed in the shell, to avoid the sharp edge angle of the shell scratch the core; (3) To prevent aluminum plastic composite membrane sandwich pure aluminum from short-circuiting with external contact.

2, must design the core protection circuit: including the highest / lowest voltage scientific settings, Overcurrent protection, the core combination of the use of battery units(single core) overcharge protection.

3, the transfer of the anode aluminum pole handle through the nickel bar, and the connection between the core and the circuit board should be implemented by ultrasonic welding or spot welding technology.

4, the reliable positioning of the core, the core assembly should be secured in the shell, will not move so that the entire lithium battery structure in a consolidation state.

The page contains the contents of the machine translation.