All solid state lithium battery

An all-solid-state lithium battery comprising:

• an oriented positive electrode plate composed of an oriented polycrystalline body made of oriented lithium transition metal oxide grains;
• a solid electrolyte layer composed of a lithium-ion conductive material disposed on the oriented positive electrode plate;
• a negative electrode layer disposed on the solid electrolyte layer;
• and
• an end insulator insulating and coating ends of the oriented positive electrode plate, wherein the surface of the end insulator adjacent the solid electrolyte layer and the surface of the oriented positive electrode plate adjacent the solid electrolyte layer form one continuous surface such that no step exists between the end insulator and the surface of the oriented positive electrode plate adjacent the solid electrolyte layer;
• or the height of the surface of the end insulator adjacent the solid electrolyte layer is lower than that of the surface of the oriented positive electrode plate adjacent the solid electrolyte layer to form a discontinuous surface with proviso that the difference in level of a step between the end insulator and the surface of the oriented positive electrode plate adjacent the solid electrolyte layer is smaller than the thickness of the solid electrolyte layer.