Please tell me about the problem of 18350 and 16340 lithium batteries.

Introduction Questions about 18350 and 16340 lithium batteries: 1. If the two lithium batteries, 18350 and 16340, have the same mA, except for the difference in appearance, if

Please tell me about the problem of 18350 and 16340 lithium batteries.

1. If the two lithium batteries, 18350 and 16340, have the same mAh, except for the difference in appearance, if they use the same positive and negative electrode materials, they will have exactly the same performance.

2. 18650 2600 mAh lithium battery and 16340 650 mAh lithium battery If they both use the same positive and negative electrode materials, except for the maximum continuous discharge current, they have different appearances and the same performance.

3. Even if the voltage is the same but batteries of different capacities cannot be connected in series to form a battery pack (can be used in parallel), with each charge and discharge cycle, batteries of different capacities smaller. which are used first can easily cause polarity reversal in a short time (this is what the so-called consistency of batteries in series refers to, suchsuch as laptop batteries and electric vehicle batteries).

First of all, we need to understand the meaning of the cylindrical label of the lithium-ion battery. One or two numbers represent the diameter of the battery, three or four numbers represent the height of the battery and the. the last 0 represents the cylindrical shape. Cylindrical lithium-ion batteries of different numbers are manufactured to meet electrical products with different volume requirements. For example, among the different cylindrical lithium ion battery specifications you listed, 18350 is a cylindrical battery with a diameter of 18mm and a height of 35mm. 18650 It is a cylindrical battery with a diameter of 18MM and a height of 65MM.

Batteries currently used in modern digital products such as mobile phones, laptops, tablets and playersMP3 are actually almost all made of carbon materials as the negative electrode, lithium cobalt oxide as the positive electrode material, and organic electrolysis. It is made of a liquid as a medium and equipped with a nickel-plated iron shell. The cut-off charge voltage is 4.2V and the cut-off discharge voltage is 2.8-3.0V. lithium ion battery market at present. Since the battery does not contain lithium metal, it only contains lithium ions, so the correct name should be lithium ion batteries, originally referred to as disposable non-rechargeable lithium metal batteries, which are now. misunderstood.

Cylindrical lithium-ion batteries of different specifications, made from the same positive and negative electrode materials, with respect to individual cells, have different capacity and appearance size, as well that the maximum currentm for high direct current. - current supply, (max. discharge current cannot exceed 2C, C is the battery capacity), there is no other difference, the discharge curve is exactly the same.

Of course, there are other lithium-ion batteries containing lithium-ion compounds as positive electrode materials, such as lithium manganate, lithium-nickel-cobalt manganate, lithium-ion batteries lithium iron phosphate, etc. The charging and discharging cutoff voltages are different. The curves are also different and will not be discussed here.

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