| abstract |
The present application relates to a three-dimensional composite metal lithium negative electrode and a metal lithium battery and device. The composite metal lithium negative electrode includes metal lithium particles and a three-dimensional polymer framework, wherein the metal lithium particles are filled in the three-dimensional polymer framework, and the three-dimensional polymer framework includes a lithiophilic segment, an active site and a polymer-containing framework part. The present application improves the volume effect of the metal lithium negative electrode during the charging and discharging process, and can suppress the side reaction between the metal lithium and the electrolyte; increases the specific surface area of the metal lithium negative electrode, and introduces lithiophilic nanosites, which can guide the metal lithium The uniform deposition of lithium can effectively inhibit the growth of lithium dendrites; in addition, the three-dimensional framework coats active lithium, which can effectively inhibit the risk of brittle SEI films faced by traditional solutions. |