公开(公告)号：US09450246B2

公开(公告)日：2016-09-20

申请号：US13503879

申请日：2010-10-20

申请人： Teppei Takahashi ,  Yoshito Ishii ,  Keiji Okabe ,  Yuriko Ida ,  Nobushige Nakamura

发明人： Teppei Takahashi ,  Yoshito Ishii ,  Keiji Okabe ,  Yuriko Ida ,  Nobushige Nakamura

IPC分类号： H01M4/583 ,  H01M4/587 ,  C01B31/04 ,  H01M10/0525

CPC分类号： H01M4/587 ,  C01B32/20 ,  H01M10/0525

摘要： Disclosed are carbon particles for a negative electrode of a lithium ion secondary battery, the carbon particles having a pore volume of pores having a size of 2×10 to 2×104 Å, of 0.1 ml/g or less with respect to the mass of the carbon particles; having an interlayer distance d(002) of a graphite crystal as determined by an X-ray diffraction analysis, of 3.38 Å or less; having a crystallite size Lc in the C-axis direction of 500 Å or more; and having a degree of circularity of the particle cross-section in the range of 0.6 to 0.9. Therefore, the carbon particles for the negative electrode of the lithium ion secondary battery enables to have high capacity and have superior rapid charge characteristics, a negative electrode for a lithium ion secondary battery using the carbon particles, and a lithium ion secondary battery can be provided.

摘要翻译： 公开了用于锂离子二次电池的负极的碳粒子，相对于质量为0.1ml / g以下，具有2×10〜2×104的尺寸的孔的孔体积的碳粒子 碳颗粒; 通过X射线衍射分析确定的石墨晶体的层间距离d（002）为3.38以下; 其C轴方向的微晶尺寸Lc为500以上; 并且具有在0.6至0.9的范围内的颗粒横截面的圆形度。 因此，锂离子二次电池的负极用碳粒子能够具有高容量且具有优异的快速充电特性，可以提供使用碳粒子的锂离子二次电池用负极和锂离子二次电池 。

公开(公告)号：US20120219863A1

公开(公告)日：2012-08-30

申请号：US13503879

申请日：2010-10-20

申请人： Teppei Takahashi ,  Yoshito Ishii ,  Keiji Okabe ,  Yuriko Ida ,  Nobushige Nakamura

发明人： Teppei Takahashi ,  Yoshito Ishii ,  Keiji Okabe ,  Yuriko Ida ,  Nobushige Nakamura

IPC分类号： H01M4/583

CPC分类号： H01M4/587 ,  C01B32/20 ,  H01M10/0525

摘要： Disclosed are carbon particles for a negative electrode of a lithium ion secondary battery, the carbon particles having a pore volume of pores having a size of 2×10 to 2×104 Å, of 0.1 ml/g or less with respect to the mass of the carbon particles; having an interlayer distance d(002) of a graphite crystal as determined by an X-ray diffraction analysis, of 3.38 Å or less; having a crystallite size Lc in the C-axis direction of 500 Å or more; and having a degree of circularity of the particle cross-section in the range of 0.6 to 0.9. Therefore, the carbon particles for the negative electrode of the lithium ion secondary battery enables to have high capacity and have superior rapid charge characteristics, a negative electrode for a lithium ion secondary battery using the carbon particles, and a lithium ion secondary battery can be provided.

摘要翻译： 公开了用于锂离子二次电池的负极的碳粒子，相对于质量为0.1ml / g以下，具有2×10〜2×104的尺寸的孔的孔体积的碳粒子 碳颗粒; 通过X射线衍射分析确定的石墨晶体的层间距离d（002）为3.38以下; 其C轴方向的微晶尺寸Lc为500以上; 并且具有在0.6至0.9的范围内的颗粒横截面的圆形度。 因此，锂离子二次电池的负极用碳粒子能够具有高容量且具有优异的快速充电特性，可以提供使用碳粒子的锂离子二次电池用负极和锂离子二次电池 。

公开(公告)号：US10854871B2

公开(公告)日：2020-12-01

申请号：US13812595

申请日：2011-07-29

申请人： Nobushige Nakamura ,  Yoshito Ishii ,  Hidetoshi Honbou ,  Keiji Okabe ,  Yuriko Ida

发明人： Nobushige Nakamura ,  Yoshito Ishii ,  Hidetoshi Honbou ,  Keiji Okabe ,  Yuriko Ida

IPC分类号： H01M4/133 ,  H01M4/587 ,  H01M4/36 ,  H01M10/0525

摘要： An anode material for a lithium ion secondary battery that includes a carbon material having an average interlayer spacing d002 as determined by X-ray diffraction of from 0.335 nm to 0.340 nm, a volume average particle diameter (50% D) of from 1 μm to 40 μm, a maximum particle diameter Dmax of 74 μm or less, and at least two exothermic peaks within a temperature range of from 300° C. to 1000° C. in a differential thermal analysis in an air stream.

公开(公告)号：US20130143127A1

公开(公告)日：2013-06-06

申请号：US13812595

申请日：2011-07-29

申请人： Nobushige Nakamura ,  Yoshito Ishii ,  Hidetoshi Honbou ,  Keiji Okabe ,  Yuriko Ida

发明人： Nobushige Nakamura ,  Yoshito Ishii ,  Hidetoshi Honbou ,  Keiji Okabe ,  Yuriko Ida

IPC分类号： H01M4/133

摘要： An anode material for a lithium ion secondary battery that includes a carbon material having an average interlayer spacing d002 as determined by X-ray diffraction of from 0.335 nm to 0.340 nm, a volume average particle diameter (50% D) of from 1 μm to 40 μm, a maximum particle diameter Dmax of 74 μm or less, and at least two exothermic peaks within a temperature range of from 300° C. to 1000° C. in a differential thermal analysis in an air stream.

摘要翻译： 一种锂离子二次电池用负极材料，其特征在于，具有通过X射线衍射测定的平均层间距离d002为0.335nm〜0.340nm，体积平均粒径（50％D）为1μm〜 40微米，最大粒径Dmax为74μm或更小，以及在空气流中的差热分析中在300℃至1000℃的温度范围内的至少两个放热峰。