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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Tell me about how to distinguish and test methods for polymer batteries.18650 lithium battery 3000mah

release time:2023-09-08 Hits:     Popular:AG11 battery

  

  1、 Differentiate from advantages

  1. Replacing the original liquid electrolyte with a solid electrolyte;

  2. Replacing carbon negative electrode materials with lithium-ion negative electrode materials;

  3. Lightweight;

  4. Ultra thinness;

  5. Flexible appearance: can be made into different shapes according to different needs;

  6. Improvement in safety: Even if overcharged, it is very stable, and the probability of leakage becomes very low because the electrolyte is solid.

  2、 From appearance packaging to internal composition

  1. Sheet shape: If the outside is wrapped with stickers, first use both hands to repeatedly break it back and forth. If there is a plastic frame on the edge, it is likely to be ordinary lithium ions, not polymers. Remove the sticker and expose the battery cell. If the edge is a rectangular block at right angles, it may be a regular lithium ion.

  If the edge is an arc-shaped cell and there are gaps in the packaging metal sheet, it may be a polymer. Polymer batteries can continue to be disassembled, exhibiting a vacuum encapsulated aluminum foil. Generally, lithium ions only exhibit metal shell square cells, and cannot be further disassembled with both hands.

  2. Barrel shaped, usually with a high lithium ion content and less polymer. Most polymers are much flatter.


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