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
Sino Technology Manufacturer Group co.,ltd Home  >  product  >  energy storage lithium battery  >  Rechargeable Battery
polymer lithium battery

Primary battery

Rechargeable Battery

LR03 alkaline battery

Sino Technology Manufacturer Group co.,ltd
Sino Technology Manufacturer Group co.,ltd

18650 lithium ion battery 3.7v
18650 lithium ion battery 3.7v
18650 lithium ion battery 3.7v
18650 lithium ion battery 3.7v
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18650 lithium ion battery 3.7v

18650 lithium ion battery 3.7v

Model: 18650

Capacity: 2600mAh

Discharge rate: Continuous 3C, Instantaneous 5C

Pole ear: Monopole ear with PTC

Internal resistance: <60mΩ

Minimum capacity: 2550mAh

Discharge cut-off voltage: 3.6V

Cell weight: 45g


Application:

Ebike, scooters, solar panel, power storage, flashlight, power tools, medical equipment, motorcycle, digital products etc.


Product description

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  8650 lithium battery production process two: assembly

  The sorted positive and negative electrodes will be fully automatic packaged here, and the white material is the diaphragm. The 18650 lithium battery can't work normally. It needs to add electrolyte as a medium to allow the positive and negative electrodes to undergo a chemical reaction, so that lithium ions can migrate between the positive and negative electrodes, and the lithium battery can be charged and discharged by generating charged ions and outputting energy. After the automatic roll is wrapped, it rolls directly on the assembly line, and enters the next assembly step to be loaded into the steel shell.

  The steel shell is stamped and formed in one piece, and the thickness is less than 1mm. Therefore, the requirements for the strength and quality of steel are very high. This 18650 lithium battery factory uses imported Korean steel materials.

  18650 lithium battery production process three: the first charge and test

  After the electrolyte is injected into the 18650 lithium battery, it is not actually charged, and the state of the surface of the positive and negative electrodes is not stable at this time. It must be charged for the first time before it can be used normally. This first charge is called formation. When charging for the first time, additional electricity needs to be charged to form a protective film on the electrode surface. This protective film is the secret of the low self-discharge of lithium-ion batteries. At the same time, the properties of the protective film also affect the performance and life of the battery. Therefore, the chemical formation process is very important. Formation is done using subcontainers.

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