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发明授权
CN106663808B 碳材料、碳材料的制造方法、以及使用了碳材料的非水系二次电池 有权 转让

碳材料、碳材料的制造方法、以及使用了碳材料的非水系二次电池
摘要：
本发明提供能够得到高容量、且具备优异的输入输出特性的非水系二次电池的碳材料，作为其结果，提供高性能的非水系二次电池。本发明涉及的非水系二次电池用碳材料包含能够吸留和放出锂离子的石墨，该碳材料的微孔径0.01μm以上且1μm以下范围的累积孔容为0.08mL/g以上，通过流动式粒子图像分析求出的圆度为0.88以上，下述式(1A)所示的微孔径与粒径之比(PD/d50(％))为1.8以下。PD/d50(％)＝通过压汞法求出的微孔分布中微孔径0.01μm以上且1μm以下的范围的众数微孔径(PD)/体积基准平均粒径(d50)×100(1A)。
摘要（英）：

This invention provides a carbon material that can provide a non-aqueous secondary battery having a high capacity and excellent input-output characteristics and, as a result, provide a high-performance non-aqueous secondary battery. The carbon material for a non-aqueous secondary battery, comprising a graphite capable of occluding and releasing lithium ions, the carbon material having a cumulative pore volume at pore diameters in a range of 0.01 µm to 1 µm of 0.08 mL/g or more, a roundness, as determined by flow-type particle image analysis, of 0.88 or greater, and a pore diameter to particle diameter ratio (PD/d50 (%)) of 1.8 or less, the ratio being given by equation (1A): PD/d50 (%) = mode pore diameter (PD) in a pore diameter range of 0.01 µm to 1 µm in a pore distribution determined by mercury intrusion/volume-based average particle diameter (d50) × 100

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