| abstract |
The present invention relates to a lithium secondary battery which is made of a negative electrode-free battery and is formed by charging lithium metal on a negative electrode current collector in the form of a three-dimensional structure. The lithium secondary battery forms a lithium metal in a state where it is shielded from the atmosphere, so that a native oxide layer formed on the conventional negative electrode does not occur, and lithium metal is formed on the negative electrode collector in the form of a three- And the lithium dendrite growth inhibiting effect is excellent. Therefore, it is possible to prevent deterioration of battery efficiency and lifetime characteristics. |