18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

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Cylindrical lithium battery

source:Industry News release time:2024-03-08 Hits:     Popular:AG11 battery

  

  Cylindrical lithium batteries are divided into lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide, cobalt manganese mixture, ternary material different systems, the shell is divided into steel shell and polymer two, different material system batteries have different advantages. At present, the cylinder is mainly based on the steel shell cylindrical lithium iron phosphate battery, which is characterized by high capacity, high output voltage, good charge-discharge cycle performance, stable output voltage, large current discharge, stable electrochemical performance, safe use, wide operating temperature range, and friendly to the environment. Widely used in solar lamps, lawn lamps, backup energy, power tools, toy models.

  A typical cylindrical battery structure includes: positive cap, safety valve, PTC element, current cut-off mechanism, washer, positive, negative, isolation film, housing.

  The earliest cylindrical lithium battery is the 18650 lithium battery invented by Japan's SONY company in 1992, because the 18650 cylindrical lithium battery has a long history, so the market penetration rate is very high, cylindrical lithium battery adopts a fairly mature winding process, high degree of automation, stable product quality, and relatively low cost. There are many models of cylindrical lithium batteries, such as 14650, 17490, 18650, 21700, 26650 and so on. Cylindrical lithium batteries in Japan, South Korea lithium battery companies are more popular, China also has a considerable scale of enterprises to produce cylindrical lithium batteries.


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