Polymer, pole piece and related battery monomer, battery and electric device

Abstract

The invention provides a polymer, a pole piece, a related battery monomer, a battery and an electric device. The polymer comprises a fluorinated polymer, the crystallinity of the fluorinated polymer measured by differential scanning calorimetry is XC%, and XC is greater than 0 and less than or equal to 30; the melting temperature of the fluorinated polymer is Tm, the unit is DEG C, and Tm is more than 0 and less than or equal to 140. The polymer disclosed by the invention has relatively low crystallinity and melting temperature, so that molecular chains tend to be loose in arrangement, the acting force between the molecular chains is small, the chain segment flexibility can be exerted, and the adjacent molecular chains are easy to open. When the polymer is applied to a battery monomer, the cycle performance and the storage performance of the battery monomer can be improved.

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