▎ 摘　　要

NOVELTY - The releaser comprises a direct current (DC) voltage generating device (100) which generates DC voltage into + 12V. A piezoelectric transformer (200) is connected with the output end of DC voltage generating device for converting the direct current voltage of + 12V into DC negative high voltage. A graphene release electrode (300) is connected to the output terminal of piezoelectric transformer through a high voltage lead. A release electrode is provided with cone-shaped tip cylinder structure made of a graphene material which is an extruded graphene. USE - Negative ion release electrode. ADVANTAGE - The voltage boosting through the conversion of electric energy-mechanical energy-electric energy is realized. The stable negative DC high voltage is generated. The output high-voltage unstable is prevented. The large dose of negative ions is generated by the stability of voltage in conjunction with the high conductivity of electrode. The applying of high voltage value caused by ozone increases is avoided. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of negative ion releasing electrode. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the negative ion release electrode. (Drawing includes non-English language text)