ELECTROCHEMICAL DEVICE NEGATIVE ELECTRODE AND ELECTROCHEMICAL DEVICE, AND METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE NEGATIVE ELECTRODE AND METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE

A electrochemical device negative electrode includes: a negative electrode core material; and a negative electrode material layer supported on the negative electrode core material. The negative electrode material layer contains a carbon material. And a surface layer portion of the negative electrode material layer has a lithium carbonate-containing region.