▎ 摘　　要

NOVELTY - Printing silver electrode involves configuring silver electrodes to print silver paste, performing critical state printing, and ensuring air breakdown effect between printing needle tip and substrate. The printing voltage is controlled to be 6-15 kilovolts (kV), inner diameter of printing head is 0.06-0.16 mm, spraying speed of silver paste printed by the silver electrode is 0.3-1 milliliter/hour (ml/hour), and the distance between the printing head and the base is 2-4 mm. USE - Method for printing silver electrode for use in the field of solar battery, organic light emitting diode (OLED), touch screen panel, nano electric generator, nano robot, wearable device and implantable device intelligent flexible sensor. ADVANTAGE - The printing process enters the critical state, which realizes the in-situ sintering of the silver electrode material, and printed silver electrode does not need subsequent sintering and is directly applied to a thermosensitive flexible substrate. The printed silver electrode has good conductivity, which is suitable for heat sensitive flexible substrate. The silver electrode printing silver paste flow is greatly increased, and generating high current density on the substrate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a silver electrode printing device, which comprises printer and direct current power supply, where direct current power supply is used for supplying voltage of 0-20 kV, where printer comprises printing platform, driving mechanism and injection assembly, printing substrate is arranged on the printing platform, driving mechanism is connected with the printing platform and used for driving the injection assembly to move in the X-axis direction, Y-axis direction and Z-axis direction relative to the printing platform, and injection assembly is connected with the driving mechanism and is positioned above the printing platform.