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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