The microscopic shape of lithium metal changes sharply during charge and discharge, which leads to the precipitation of lithium dendrite. Lithium dendrite will not only reduce the capacity of the battery, but also cause short circuit in the battery, fire and explosion and other safety accidents. If a layer of plasticine with a thickness of about 1 micron is coated on the surface of lithium metal, the lithium metal electrode can be protected almost perfectly. In the normal process of charge and discharge, lithium metal is uniformly deposited on the surface of the electrode and has little force on the plasticine. The soft plasticine can well adapt to the changes of the shape and volume of lithium metal, stick firmly to the surface of lithium and play the role of protective coating. Once lithium dendrites prick out in some areas, the plasticine coating will harden rapidly, thus effectively blocking the growth of lithium dendrites.
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The harm of lithium dendrites and their inhibition methods