The author's question is a bit biased. It should focus on lithium battery assembly, not lithium battery production. Lithium battery assembly is a technology that combines cells, protective plates, nickel strips, casings, etc. The threshold for this is low, you can learn it quickly, and the technical difficulty is low. Once you learn it, it's not a big deal to simply test, repair and disassemble a lithium battery if you want to do some good. Work in lithium battery PACK technology, you still need more practical experience.
Be careful when starting a business. Don't think that if you buy equipment and learn skills that the manufacturer will be responsible for your survival, you will definitely make money! Additionally, you must be tech-savvy and know how to sell the products you make.brick. If you master the technology yourself, you don't have enough sales experience and can't sell it. You can only make it for your own use, which is equivalent to buying scrap metal.
These equipment manufacturers only want to sell you the equipment and cannot provide much after-sales service.
In addition, lithium batteries, like lead acid batteries, present a risk of accident. Small shops still need strong insurance support, otherwise, once an accident occurs, ten years of hard work will be in vain!
There is a lithium battery PACK technology manufacturer, famous for its ODM (customized processing) technology. It was favored by Google and reached strategic cooperation. Industry (puxun lithium battery). If you benefit from their technical advice, coupled with perfect after-sales service and insurance, you should beable to start a business with confidence, but you still have to rely on yourself. Don't expect to make 100% money just by learning technology. . There is no free pie in the world!
What size is required for lithium batteries using nickel substituents?
It is better for the nickel sheets of lithium batteries to be porous than non-porous. The most common nickel foils for existing batteries are smooth-surfaced, non-porous nickel foils. Current nickel foils are prone to tin explosion during spot welding. This is mainly because there is no space for the amount of tin to diffuse and the nickel foils. Unable to connect wires is very troublesome in actual use.
Welding of the nickel sheets of the 18650 lithium battery.
Use feNickel beads with suitable width of 8mm and thickness of 0.15mm. Turn the spot welding machine to maximum power. Only a sheet of nickel of this width and thickness can carry significant current. Never use nickel flakes from an external welding battery. Nickel flakes can shatter at full strength, in many cases causing fried chicken. Don't get fried by the little nickel flakes.
The solder is secure and the nickel part is flux soldered to the power cord. Only by first wrapping the ends of the wires with flux, and then completely absorbing them with solder, can we 100% avoid the problem of false soldering.