Can 18650 lithium battery be soldered directly with a soldering iron?

Introduction Can 18650 lithium battery be soldered directly with a soldering iron? Can 18650 lithium battery be soldered directly with a soldering iron? It is best to use a spot welder to weld the battery.

Can 18650 lithium battery be soldered directly with a soldering iron?

Can the 18650 lithium battery be soldered directly with a soldering iron? It cannot be soldered directly with a soldering iron. It is best to spot weld the battery with a battery spot welder. It's beautiful, practical and fast. , the welding is firm and the spot welding is safe.

Lithium battery

Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. It was invented by Edison. The reaction equation used by the battery is: Li+MnO2=LiMnO2. This reaction is an oxidation-reduction and discharge reaction. In the past, because the chemical properties of lithium metal are very active and the environmental requirements for processing, storage and use are very high, lithium batteries have not been used for a long time.mps. With the development of modern science, lithium batteries have now become common. On February 22, 2016, ICAO announced a ban on checked baggage containing lithium batteries.

Lithium batteries are generally divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth generation product of rechargeable batteries, lithium metal batteries, was born in 1996. Its safety, specific capacity, self-discharge rate and performance-price ratio are better than those of lithium-ion batteries.

The positive and negative electrodes of the Pacific Automotive Network ternary lithium battery can be connected by welding. The 18650 lithium battery can be welded with WEWELDINGM51 tin alloy welding wire suitable for copper. and the welding differsnt aluminum, but this requires assistance. For M51-F flux welding, polish it before welding, then use a soldering iron to preheat the auxiliary aluminum sheet in advance, then use soldering wire dipped in flux to lower the wire to solder until the solder joint, and at the same time use the preheating soldering iron to help the solder wire dipped in the flux to melt and form.

The metal casing of lithium batteries is usually nickel-plated. It is not easy to directly solder solder on this nickel-plated case. If the amount of solder is not large, just a few solder joints, you can first use a file to process the parts of the lithium battery that need to be soldered to make the surface rougher, and then apply a little solder. rosin water and use a stronger product. electric soldering iron to melt the soldering wire, plated on the surfaceof the battery, so that it is easy to solder with solder wire. The disadvantage of using the above soldering method is that the solder joints are not very firmly attached and may unsolder after being subjected to stress. In addition, long welding time is not good for lithium batteries. If you want to solder lithium batteries, the easiest way is to use multifunctional metal flux to solder. Multifunctional metal flow. The multifunctional metal flux shown in the picture above can easily weld the pole pieces of stainless steel and battery. When using, first clean the area where the lithium battery needs to be soldered, and then apply multi-functional flux to the area where the lithium battery needs to be soldered, so that the solder can be soldered to the lithium battery .

After using the flux, solder was soldered onto the elementsPositive and negative electrodes of the lithium battery.

The wires are soldered to the 18650 lithium battery. The cathode of the lithium battery tab is copper foil and can be soldered directly. The whole machine is generally aluminum foil and cannot be soldered with an ordinary soldering iron. Generally, it needs to be converted into nickel sheet (spot welding with a spot welding machine) before it can be welded with ordinary solder.

(Images/Text/Photos: Pacific Automotive Network Calling the Beast Q&A)

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