CARBON MATERIAL, CELL ELECTRODE MATERIAL, AND CELL

• Main Authors: TERASHIMA TAKASHI, SOTOWA CHIAKI, WAKIZAKA YASUAKI
• Format: Patent
• Language: English; Korean
• Published: 03.03.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

본 발명은 라만 분광 측정기로 탄소 재료의 입자를 측정했을 때 라만 분광 스펙트럼에서 측정되는 1300∼1400㎝의 범위에 있는 피크의 피크 강도(I)와 1580∼1620㎝의 범위에 있는 피크의 피크 강도(I)의 비 I/I(R값)가 0.38 이상 1.2 이하이며, X선 회절법에 의한 (002)면의 평균 면 간격(d002)이 0.335㎚ 이상 0.338㎚ 이하이고, 광학 조직 구조가 특정 형상을 갖고 이루어지는, 비수전해액 2차 전지의 전극 재료로서 바람직한 탄소 재료와 전지 전극용 재료, 및 충방전 사이클 특성, 대전류 부하 특성이 뛰어난 2차 전지를 제공한다. A carbon material and a material for a battery electrode which is suitable for use as an electrode material for an aqueous-electrolyte secondary battery, which material includes optical structures having a specific shape, and in which material the ratio IG/ID (R value) between the peak intensity (ID) of a peak in a range of 1300 to 1400 cm−1 and the peak intensity (IG) of a peak in a range of 1580 to 1620 cm−1 measured by Raman spectroscopy spectra when particles of the carbon material are measured with Raman microspectrometer is 0.38 or more and 1.2 or less and the average interplanar spacing d002 of plane (002) by the X-ray diffraction method is 0.335 nm or more and 0.338 nm or less; and a secondary battery excellent in charge/discharge cycle characteristics and large current load characteristics.