Carbon Material for Power Storage Device Electrode and Manufacturing Method Thereof

• Main Authors: HIGAONNA YASUYUKI, MATSUMURA YUKO, KUME TETSUYA
• Format: Patent
• Language: English; Korean
• Published: 18.10.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

Provided is a carbon material for an electrode of an energy storing device. The carbon material has enhanced durability performance while maintaining performance of an energy storing device. When measured by Boehm method, the carbon material for an electrode of an energy storing device has the total amount of oxygen-containing functional groups less than or equal to 0.8 mmol/g per unit mass of the carbon material, wherein the oxygen-containing functional groups consist of quinone groups, phenol hydroxyl groups, lactone groups, and carboxylic groups. Also, the total amount of quinone groups and lactone groups is less than or equal to 0.2 mmol/g per unit mass of the carbon material. [과제] 축전 디바이스 성능을 유지하면서 내구 성능이 향상된 축전 디바이스 전극용 탄소 재료를 제공하는 것. [해결수단] 보엠(Boehm)법으로 측정한 경우, 퀴논기, 페놀수산기, 락톤기, 및 카르복실기로 이루어진 산소 함유 관능기의 합계량이 탄소 재료의 단위질량당 0.8mmol/g 이하이고, 또한 퀴논기 및 락톤기의 합계량이 탄소 재료의 단위질량당 0.2mmol/g 이하인 것을 특징으로 하는 축전 디바이스 전극용 탄소 재료.