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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Lithium battery structure

release time:2022-12-16 Hits:     Popular:AG11 battery

  Home energy storage battery FBC-HS01

  Lithium batteries usually have two shapes: cylindrical and square. The inner part of the battery adopts a spiral wound structure, which is made of a very fine and highly permeable polyethylene film isolation material spaced between the positive and negative electrodes. The positive electrode consists of lithium cobalate (or lithium nickel cobalt manganate, lithium manganate, lithium ferrous phosphate, etc.)

  And aluminum foil. The cathode consists of a current collector made of graphitized carbon material and copper foil. The battery is filled with organic electrolyte solution. In addition, safety valves and PTC elements (partially cylindrical) are also installed to protect the battery from damage in case of abnormal state and output short circuit.

  The voltage of a single lithium battery is 3.7V (3.2V for lithium ferrous phosphate cathode), and the battery capacity cannot be unlimited. Therefore, single lithium batteries are often treated in series and parallel to meet the requirements of different occasions.


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