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CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND PRODUCTION METHOD OF CARBONACEOUS MATERIAL
CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND PRODUCTION METHOD OF CARBONACEOUS MATERIAL
A problem to be solved by the present invention is to provide a carbonaceous material suitable for a negative electrode active material for non-aqueous electrolyte secondary batteries (e.g., lithium ion secondary batteries, sodium ion secondary batteries, lithium sulfur batteries, lithium air batteries) having high charge/discharge capacities and preferably high charge/discharge efficiency as well as low resistance, a negative electrode comprising the carbonaceous material, a non-aqueous electrolyte secondary battery comprising the negative electrode, and a production method of the carbonaceous material. The present invention relates to a carbonaceous material having a nitrogen element content of 1.0 mass % or more and an oxygen content of 1.5 mass % or less obtained by elemental analysis, a ratio of nitrogen element content and hydrogen element content (RN/H) of 6 or more and 100 or less, a ratio of oxygen element content and nitrogen element content (RO/N) of 0.1 or more and 1.0 or less, and a carbon interplanar spacing (d002) observed by X-ray diffraction measurement of 3.70 Å or more.
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机译:本发明要解决的问题是提供一种适用于用于非水电解质二次电池的负极活性材料的碳质材料(例如,锂离子二次电池,钠离子二次电池,锂硫电池,锂空气电池)具有高电荷/放电容量,优选高充电/放电效率以及低电阻,包括碳质材料的负极,包括负电极的非水电解质二次电池和碳质材料的制造方法。本发明涉及氮素元素含量为1.0质量%以上的碳质材料和通过元素分析获得的1.5质量%以下的氧含量,氮素元素含量和氢元素含量的比例(R N. / h sub>以6或更大,100或更低,氧元素含量和氮素元素含量的比例(R o / n sub>)为0.1或更大,1.0或更低,以及a由X射线衍射测量观察到3.70埃或更高的碳白板间距(D 002 sub>)。
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