NEGATIVE ELECTRODE FOR SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME, AND LITHIUM METAL SECONDARY BATTERY COMPRISING THE SAME

The present disclosure relates to a negative electrode for a secondary battery, including a negative electrode protective layer which can be formed by a more simplified method and can effectively suppress the growth of acicular dendrites generatedin the negative electrode of a lithium metal secondary battery, a method for manufacturing the same, and a lithium metal secondary battery comprising the same. The negative electrode for secondary battery includes a negative electrode current collector; a lithium metal (Li-metal) thin film formed on the negative electrode current collector; and a negative electrode protective layer including a diazonium ion chemically bonded to the lithium metal thin film.