公开(公告)号：US09214666B2

公开(公告)日：2015-12-15

申请号：US13858375

申请日：2013-04-08

Applicant: JX NIPPON OIL & ENERGY CORPORATION ,  TODA KOGYO CORP. ,  Setsumi Fujinaga

Inventor： Takashi Suzuki ,  Noriyo Ishimaru ,  Takashi Oyama ,  Tamotsu Tano ,  Toshiyuki Oda ,  Ippei Fujinaga ,  Tomoaki Urai ,  Seiji Okazaki ,  Katsuaki Kurata ,  Toshiaki Hiramoto ,  Akino Sato ,  Wataru Oda

IPC: H01M4/13 ,  H01M4/583 ,  H01M4/133 ,  C01B31/04 ,  H01M4/1393 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M4/133 ,  C01B32/20 ,  H01M4/1393 ,  H01M4/587 ,  H01M10/0525 ,  Y02T10/7011

Abstract: This disclosure concerns graphite materials having lattice distortion for lithium-ion secondary battery negative electrode obtained by a manufacturing method comprising the steps of: pulverizing and classifying a raw coke composition obtained from a heavy-oil composition undergone coking by delayed coking process, the raw coke composition having a H/C atomic ratio that is a ratio of hydrogen atoms H and carbon atoms C of 0.30 to 0.50 and having a micro-strength of 7 to 17 mass % to obtain powder of the raw coke composition; giving compressive stress and shear stress to the powder of the raw coke composition so that average circularity is 0.91 to 0.97 to obtain round powder; heating the round powder to obtain a carbonized composition; and graphitizing the carbonized composition.

Abstract translation: 本公开涉及通过制造方法得到的锂离子二次电池用负极的晶格畸变的石墨材料，其特征在于，包括以下步骤：将通过延迟焦化工艺进行焦化的重油组合物得到的生焦炭组合物进行粉碎和分级， 氢原子H与碳原子数C的比例为0.30〜0.50，微浓度为7〜17质量％的H / C原子比的组成，得到原料焦炭组合物的粉末; 对原料焦炭组合物的粉末赋予压应力和剪切应力，以获得圆形粉末的平均圆形度为0.91至0.97; 加热圆粉以得到碳化组合物; 并对碳化组合物进行石墨化。

公开(公告)号：US20130302692A1

公开(公告)日：2013-11-14

申请号：US13858375

申请日：2013-04-08

Applicant: Setsumi Fujinaga ,  JX NIPPON OIL & ENERGY CORPORATION ,  TODA KOGYO CORP.

Inventor： Takashi SUZUKI ,  Noriyo Ishimaru ,  Takashi Oyama ,  Tamotsu Tano ,  Toshiyuki Oda ,  Ippei Fujinaga ,  Tomoaki Urai ,  Seiji Okazaki ,  Katsuaki Kurata ,  Toshiaki Hiramoto ,  Akino Sato ,  Wataru Oda

IPC: H01M4/133

CPC classification number: H01M4/133 ,  C01B32/20 ,  H01M4/1393 ,  H01M4/587 ,  H01M10/0525 ,  Y02T10/7011

Abstract: This disclosure concerns graphite materials having lattice distortion for lithium-ion secondary battery negative electrode obtained by a manufacturing method comprising the steps of: pulverizing and classifying a raw coke composition obtained from a heavy-oil composition undergone coking by delayed coking process, the raw coke composition having a H/C atomic ratio that is a ratio of hydrogen atoms H and carbon atoms C of 0.30 to 0.50 and having a micro-strength of 7 to 17 mass % to obtain powder of the raw coke composition; giving compressive stress and shear stress to the powder of the raw coke composition so that average circularity is 0.91 to 0.97 to obtain round powder; heating the round powder to obtain a carbonized composition; and graphitizing the carbonized composition.

Abstract translation: 本公开涉及通过制造方法得到的锂离子二次电池用负极的晶格畸变的石墨材料，其特征在于，包括以下步骤：将通过延迟焦化工艺进行焦化的重油组合物得到的生焦炭组合物进行粉碎和分级， 氢原子H与碳原子数C的比例为0.30〜0.50，微浓度为7〜17质量％的H / C原子比的组成，得到原料焦炭组合物的粉末; 对原料焦炭组合物的粉末赋予压应力和剪切应力，以获得圆形粉末的平均圆形度为0.91至0.97; 加热圆粉以得到碳化组合物; 并对碳化组合物进行石墨化。

公开(公告)号：US09147873B2

公开(公告)日：2015-09-29

申请号：US13896825

申请日：2013-05-17

Applicant: JX NIPPON OIL & ENERGY CORPORATION ,  TODA KOGYO CORP.

Inventor： Takashi Suzuki ,  Noriyo Ishimaru ,  Takashi Oyama ,  Tamotsu Tano ,  Toshiyuki Oda ,  Ippei Fujinaga ,  Tomoaki Urai ,  Seiji Okazaki ,  Katsuaki Kurata ,  Toshiaki Hiramoto ,  Akino Sato ,  Wataru Oda

IPC: C01B31/02 ,  H01M4/133 ,  H01M4/583 ,  H01M4/587 ,  H01M10/052

CPC classification number: H01M4/133 ,  C01B32/05 ,  C10B55/00 ,  C10B57/045 ,  H01M4/583 ,  H01M4/587 ,  H01M10/052

Abstract: A method for producing an amorphous carbon material for a negative electrode of a lithium-ion secondary battery includes the steps of; pulverizing and classifying a raw coke composition obtained from a heavy-oil composition undergone coking by delayed coking process to obtain powder of the raw coke composition, the raw coke composition having a H/C atomic ratio that is a ratio of hydrogen atoms H and carbon atoms C of 0.30 to 0.50 and having a micro-strength of 7 to 17 mass %; giving compressive stress and shear stress to the powder of the raw coke composition to obtain a carbonized composition precursor; and heating the carbonized composition precursor under an inert atmosphere at a temperature from 900° C. to 1,500° C. so that a size of a crystallite Lc(002) is in a range of 2 nm to 8 nm, the size being calculated from a (002) diffraction line obtained by X-ray wide-angle diffractometry.

Abstract translation: 锂离子二次电池的负极用无定形碳材料的制造方法包括以下工序： 对通过延迟焦化处理进行焦化的重油组合物得到的生焦炭组合物进行粉碎和分级，得到原料焦炭组合物的粉末，该原料焦炭组合物的H / C原子比为氢原子H与碳的比例 原子C为0.30〜0.50，微观强度为7〜17质量％。 对原料焦炭组合物的粉末赋予压应力和剪切应力以获得碳化组合物前体; 并在惰性气氛下，在900℃至1500℃的温度下加热碳化组合物前体，使得微晶Lc（002）的尺寸在2nm至8nm的范围内，其尺寸由 通过X射线广角衍射法获得的（002）衍射线。

公开(公告)号：US09142832B2

公开(公告)日：2015-09-22

申请号：US13866843

申请日：2013-04-19

Applicant: JX NIPPON OIL & ENERGY CORPORATION ,  TODA KOGYO CORP.

Inventor： Takashi Suzuki ,  Noriyo Ishimaru ,  Takashi Oyama ,  Tamotsu Tano ,  Toshiyuki Oda ,  Ippei Fujinaga ,  Tomoaki Urai ,  Seiji Okazaki ,  Katsuaki Kurata ,  Toshiaki Hiramoto ,  Akino Sato ,  Wataru Oda

IPC: H01M4/133 ,  C01B31/04 ,  H01M4/587

CPC classification number: H01M4/133 ,  C01B32/20 ,  H01M4/587

Abstract: A graphite material for a negative electrode is provided which can suppress capacity degradation due to repeated charging and discharging cycles, storage in a charged state, and floating charging.A method of manufacturing a graphite material for a negative electrode of a lithium ion secondary battery is provided in which an atomic ratio H/C of hydrogen atoms H and carbon atoms C in the raw coke composition is in a range of 0.30 to 0.50 and a microstrength of the raw coke composition is in a range of 7 wt % to 17 wt %.

Abstract translation: 提供一种用于负极的石墨材料，其可以抑制由于重复的充电和放电循环而导致的容量劣化，在充电状态下的存储和浮动充电。 提供一种锂离子二次电池的负极用石墨材料的制造方法，其中原料焦炭组合物中氢原子H和碳原子数C的原子比H / C为0.30〜0.50， 生焦炭组合物的微观强度在7重量％至17重量％的范围内。

公开(公告)号：US20140248493A1

公开(公告)日：2014-09-04

申请号：US14349515

申请日：2012-10-02

Applicant: TODA KOGYO CORP

Inventor： Seiji Okazaki ,  Wataru Oda ,  Tomoaki Urai ,  Akio Sakamoto

IPC: H01M4/587

CPC classification number: H01M4/587 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/182 ,  Y10T428/2982

Abstract: The present invention provides a spherical carbon material in the form of isotropic particles which undergoes a considerably less change in shape even after subjected to carbonization or graphitization, and has a good crystal growth property. The present invention relates to a raw coke spherical carbon material in which an average of a plane-direction sphericity and an elevation-direction sphericity of particles of the spherical carbon material as measured in plane and elevation directions of particles of the spherical carbon material, respectively, by observation using a scanning electron microscope is not less than 60%, and a shape retention rate of the spherical carbon material after being heated at 1200° C. for 5 hr and then at 2800° C. for 3 hr is not less than 70%; a process for producing the above raw coke spherical carbon material, comprising the step of applying a compression shear stress to raw coke particles comprising particles having a particle diameter that is not more than 1/3 of an average particle diameter (D50) thereof in an amount of not less than 5% to subject the raw coke particles to dry granulation sphericalization treatment; a carbonaceous spherical carbon material obtained by carbonizing the above raw coke spherical carbon material and a process for producing the carbonaceous spherical carbon material; and a graphite spherical carbon material obtained by graphitizing the above raw coke spherical carbon material and a process for producing the graphite spherical carbon material.

Abstract translation: 本发明提供一种各向同性粒子形状的球形碳材料，其即使经过碳化或石墨化也经历了相当小的形状变化，并且具有良好的晶体生长性能。 本发明涉及一种原焦炭球形碳材料，其中分别在球形碳材料颗粒的平面和高度方向上测量球形碳材料颗粒的平面方向球形度和高度方向球形度 通过使用扫描电子显微镜的观察不低于60％，并且在1200℃下加热5小时，然后在2800℃下3小时后的球形碳材料的形状保持率不小于 70％; 一种生产上述原料焦炭球形碳材料的方法，包括将压缩剪切应力施加到原料焦炭颗粒的步骤中，所述原料焦炭颗粒包含粒径不大于其平均粒径（D50）的1/3的颗粒， 数量不少于5％，使原焦颗粒干燥造粒球化; 通过碳化上述原料焦炭球形碳材料获得的碳质球形碳材料和碳质球形碳材料的制造方法; 以及通过石墨化上述原料焦炭球形碳材料得到的石墨球形碳材料和石墨球形碳材料的制造方法。