公开(公告)号：US20140272593A1

公开(公告)日：2014-09-18

申请号：US14202346

申请日：2014-03-10

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kenta OOISHI ,  Koji OONO ,  Takao KITAGAWA ,  Tetsuya NAKABEPPU

IPC: H01M4/587

CPC classification number: H01M4/366 ,  H01M4/625 ,  H01M2004/021

Abstract: An electrode material contains an agglomerate formed by agglomerating a plurality of agglomerated particles formed by agglomerating a plurality of particles of a carbonaceous coated electrode active material having a carbonaceous coat formed on a surface, the agglomerate is made up of hollow-structured particles and solid-structured particles, the average particle diameter of the agglomerate is in a range of 0.5 μm to 100 μm, the volume density of the agglomerate is in a range of 50% by volume to 80% by volume, the micropore distribution of micropores present in the agglomerate is monomodal, the average micropore diameter in the micropore distribution is 0.3 μm or less, and the NMP oil absorption amount of the agglomerate is in a range of 40 g/100 g to 100 g/100 g.

Abstract translation: 电极材料包含通过凝集多个凝集的颗粒而形成的附聚物，所述附聚颗粒通过聚集形成在表面上的具有碳质涂层的碳质涂覆电极活性材料的多个颗粒而形成，所述附聚物由中空结构的颗粒和固体 - 凝聚体的平均粒径为0.5μm〜100μm的范围，凝聚体的体积密度为50体积％〜80体积％的范围，微细孔的微孔分布存在于 附聚物为单峰，微孔分布中的平均微孔直径为0.3μm以下，附聚物的NMP油吸附量为40g / 100g〜100g / 100g。

公开(公告)号：US20190386290A1

公开(公告)日：2019-12-19

申请号：US16282700

申请日：2019-02-22

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kouji OONO ,  Takao KITAGAWA ,  Tetsuya NAKABEPPU

IPC: H01M4/131 ,  H01M4/525 ,  H01M4/505 ,  H01M4/04

Abstract: An electrode material having an electrode active material and a pyrolytic carbonaceous electron-conducting film that coats a surface of the electrode active material, in which an amount of a surface acid of the electrode material, which is determined by a back-titration method using tetrabutylammonium hydroxide, is 1 μmol/m2 or more and 5 μmol/m2 or less per surface area of the electrode material.

公开(公告)号：US20140322613A1

公开(公告)日：2014-10-30

申请号：US14259197

申请日：2014-04-23

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Takao KITAGAWA ,  Tetsuya NAKABEPPU

IPC: H01M4/36 ,  H01M4/13 ,  H01M10/0525 ,  H01M4/62

CPC classification number: H01M4/366 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/62 ,  H01M4/625

Abstract: An electrode material is provided in which a carbon coating film containing an ion-conductive material is formed on surfaces of electrode-active material particles, and at least a portion of a surface of the ion-conductive material is exposed without being coated with the carbon coating film or the ion-conductive material is surrounded by the carbon coating film.

Abstract translation: 提供一种电极材料，其中在电极活性材料颗粒的表面上形成含有离子传导材料的碳涂膜，并且离子传导材料的至少一部分表面暴露而不涂覆碳 涂膜或离子传导材料被碳涂膜包围。

公开(公告)号：US20190305307A1

公开(公告)日：2019-10-03

申请号：US16139855

申请日：2018-09-24

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Takao KITAGAWA ,  Tetsuya NAKABEPPU

IPC: H01M4/525 ,  C01D15/00 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0564 ,  H01M4/505 ,  H01M10/0525

Abstract: An electrode material for a lithium ion secondary battery of the present invention is an electrode material for a lithium ion secondary battery including an electrode active material and a carbonaceous film that coats a surface of the electrode active material, in which a hydroxy group and a group which is at least one selected from a carboxyl group, a nitro group, and a sulfo group have been introduced to an outermost surface of the carbonaceous film, a ratio of a total count number of the group which is at least one selected from the carboxyl group, the nitro group, and the sulfo group to a count number of the hydroxy group is 0.001 or more and 10.000 or less when a surface of the carbonaceous film is analyzed through time-of-flight secondary ion mass spectrometry to obtain the ratio, a coating ratio of the carbonaceous film is set to 40% or more and 90% or less, and the carbonaceous film has at least one through-hole per 100 square nanometers.

公开(公告)号：US20140212761A1

公开(公告)日：2014-07-31

申请号：US14164831

申请日：2014-01-27

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Takao KITAGAWA ,  Tetsuya NAKABEPPU

IPC: H01M4/583

CPC classification number: H01M4/583 ,  H01M4/366 ,  H01M4/5825 ,  H01M10/0525 ,  Y02E60/122

Abstract: An electrode material of the invention includes an agglomerate formed by agglomerating carbonaceous coated electrode active material particles obtained by forming a carbonaceous coat on surfaces of electrode active material particles at a coating rate of 80% or more, and the carbonaceous coated electrode active material particles include first carbonaceous coated electrode active material particles on which a carbonaceous coat having a film thickness in a range of 0.1 nm to 3.0 nm and an average film thickness in a range of 1.0 nm to 2.0 nm is formed and second carbonaceous coated electrode active material particles on which a carbonaceous coat having a film thickness in a range of 1.0 nm to 10.0 nm and an average film thickness in a range of more than 2.0 nm to 7.0 nm is formed.

Abstract translation: 本发明的电极材料包括通过以80％以上的涂布速度将电极活性物质粒子的表面形成碳质涂层而得到的含碳涂层电极活性物质粒子凝集而形成的附聚物，碳质涂覆电极活性物质粒子 在其上形成具有膜厚度在0.1nm至3.0nm且平均膜厚度在1.0nm至2.0nm范围内的碳质涂层的第一含碳涂层电极活性材料颗粒，并且第二碳质涂覆电极活性材料颗粒在 其中形成膜厚在1.0nm至10.0nm范围内的平均膜厚度在大于2.0nm至7.0nm的范围内的碳质涂层。