All-solid-polymer battery

Used in all-solid polymer battery: 1) a lithium-based negative electrode active material, which comprises at least a portion of the grains and grain boundaries, the grain boundaries are exposed to the exposed area of ​​the surface, the grain boundary with respect to the surface of 0.02 to 0.5 per 1cm2 cm2; 2) dry polymer electrolyte containing a specific glycol ether, a lithium salt and a polymer comprising electron to oxygen atoms in the backbone; or 3) amorphous lithium nitride layer formed on the negative electrode between the polymer electrolyte. Thus, the negative electrode and the polymer electrolyte interface resistance is decreased, a high capacity can be obtained and excellent cycle characteristics all solid polymer battery. In addition, an increase in internal resistance is suppressed during storage, a superior high rate discharge characteristics after storage all solid polymer battery.