公开(公告)号：US20190097230A1

公开(公告)日：2019-03-28

申请号：US15936066

申请日：2018-03-26

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Masataka OYAMA ,  Takao KITAGAWA

IPC: H01M4/58 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  C01B25/45

Abstract: A cathode material for a lithium-ion secondary battery, the cathode material including: secondary particles which are granulated active material particles including central particles and a carbonaceous film that coats surfaces of the central particles, wherein a granulated body breakage degree ((a−b)/a) of the secondary particles is 0.03 or more and 0.30 or less, and the granulated body breakage degree is calculated based on a relative particle amount a, at which a maximum peak is shown in a particle size distribution of the secondary particles, and a relative particle amount b, at which a maximum peak in a particle size distribution of the secondary particles is shown after a dispersion treatment of the secondary particles is performed using a homogenizer.

公开(公告)号：US20180248188A1

公开(公告)日：2018-08-30

申请号：US15710553

申请日：2017-09-20

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Takao KITAGAWA ,  Hirofumi YASUMIISHI

IPC: H01M4/58 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525

CPC classification number: H01M4/5825 ,  C01B25/30 ,  H01M4/131 ,  H01M4/136 ,  H01M4/364 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  Y02T10/7011

Abstract: An electrode for a lithium-ion secondary battery including an electrode mixture layer made of a mixture including a first electrode active material including a compound represented by General Formula LiaAbPO4, a second electrode active material including at least one compound selected from the group consisting of compounds represented by LicBdO2, a lithium cobaltate-based compound, a lithium manganate-based compound, and a lithium nickelate-based compound, a conductive auxiliary agent, and a binder, in which a thermal conductivity of the electrode for the lithium-ion secondary battery, which is derived from Expression (1) using a thermal diffusivity, a constant pressure specific heat, and an electrode density of the electrode for a lithium-ion secondary battery, is 0.9 W/(m·K) or more.

公开(公告)号：US20140287310A1

公开(公告)日：2014-09-25

申请号：US14220533

申请日：2014-03-20

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Koji OONO ,  Takao KITAGAWA ,  Tatsuya NAKABEPPU ,  Kazuyo YAMAMOTO

IPC: H01M4/62 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/136

CPC classification number: H01M4/625 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/366 ,  H01M10/0525

Abstract: An electrode material which can improve the mobility of electrons and the mobility of ions at the same time, and, furthermore, does not have a problem of the impairment of the diffusion of lithium ions in a thin layer containing a carbonaceous electron-conductive substance so as to be excellent in terms of load characteristics and energy density, and an electrode and a lithium ion battery are provided.The electrode material of the invention is produced by forming a thin layer made of a carbonaceous electron-conductive substance on surfaces of primary particles made of an electrode active material, in which the carbonaceous electron-conductive substance contains nitrogen atoms.

Abstract translation: 能够同时提高电子迁移率和离子迁移率的电极材料，此外，不存在在含有碳质电子传导性物质的薄层中锂离子的扩散受损的问题，所以 在负载特性和能量密度方面优异，并且提供电极和锂离子电池。 本发明的电极材料通过在碳质电子传导性物质含有氮原子的电极活性物质的一次粒子的表面形成由碳质电子传导性物质构成的薄层来制造。

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：US20180277846A1

公开(公告)日：2018-09-27

申请号：US15710581

申请日：2017-09-20

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kouji OONO ,  Hirofumi Yasumiishi ,  Masataka OYAMA ,  Takao KITAGAWA

IPC: H01M4/58 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525

CPC classification number: H01M4/5825 ,  C01B25/081 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: A cathode material for a lithium-ion secondary battery of the present invention includes active material secondary particles formed by aggregating central particles including primary particles of a cathode active material represented by General Formula LiaAxBO4 (here, A represents at least one element selected from the group consisting of Mn, Fe, Co, and Ni, B represents at least one element selected from the group consisting of P, Si, and S, 0≤a

公开(公告)号：US20180097230A1

公开(公告)日：2018-04-05

申请号：US15433805

申请日：2017-02-15

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Masataka OYAMA ,  Takao KITAGAWA

IPC: H01M4/58 ,  H01M10/0525 ,  H01M4/136 ,  H01M4/62

CPC classification number: H01M4/5825 ,  H01M4/136 ,  H01M4/366 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/028

Abstract: A cathode material for a lithium-ion secondary battery of the present invention includes central particles represented by LixAyMzPO4 and a carbonaceous film that coats surfaces of the central particles, an average value of R values (I1580/I1360), which are ratios of a peak intensity (I1580) of a spectrum at a frequency band of 1,580±50 cm−1 to a peak intensity (I1360) of the spectrum at a frequency band of 1,360±50 cm−1 in a Raman spectrum analysis, measured at five points is 0.80 or more and 1.10 or less, and a standard deviation of the R values measured at five points is 0.010 or less.

公开(公告)号：US20180062165A1

公开(公告)日：2018-03-01

申请号：US15463139

申请日：2017-03-20

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kouji OONO ,  Takao KITAGAWA

IPC: H01M4/36 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/04

CPC classification number: H01M4/366 ,  C01B25/45 ,  C01P2002/60 ,  C01P2006/12 ,  C01P2006/90 ,  H01M4/0471 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: An electrode material made of a carbonaceous-coated electrode active material having primary particles of an electrode active material and aggregates of the primary particles and a carbonaceous film that coats the primary particles of the electrode active material and the aggregates of the primary particles, in which an average particle diameter of the carbonaceous-coated electrode active material is 30 nm or more and 200 nm or less, a crystallite diameter obtained from a full width at half maximum of a (020) plane in an X-ray diffraction measurement is 30 nm or more and 100 nm or less, a specific surface area obtained using a BET method is 10 m2/g or more and 25 m2/g or less, and a carbon content is 0.5% by mass or more and 2.5% by mass or less.

公开(公告)号：US20160156026A1

公开(公告)日：2016-06-02

申请号：US14696744

申请日：2015-04-27

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Takao KITAGAWA ,  Kenta Ooishi

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/58 ,  H01M4/133 ,  H01M4/131 ,  H01M4/505

CPC classification number: H01M4/366 ,  H01M4/0419 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/133 ,  H01M4/136 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/623 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  Y02E60/122

Abstract: An electrode material in which an electrode active material having a carbonaceous film formed on the surface is used, a migration path through which lithium ions diffuse is maintained in the carbonaceous film, and the lithium ion conductivity is also improved while the electron conductivity is supported by the carbonaceous film is provided.A electrode material, wherein the electrode material have a particulate shape, the electrode material is formed a carbonaceous film on surfaces of electrode active material particles, a coating proportion of the surfaces of the electrode active material particles by the carbonaceous film is 80% or more, and an apparent density (ρV) of the carbonaceous film calculated from an amount of carbon in the electrode material, a specific surface area of the electrode material, and an average film thickness of the carbonaceous film is in a range of 0.10 g/cm3 to 1.08 g/cm3.

Abstract translation: 使用在表面形成有碳膜的电极活性物质的电极材料，在碳质膜中保持锂离子扩散的迁移路径，并且锂离子传导性也得到改善，同时电子传导性被 提供碳质膜。 一种电极材料，其中电极材料具有颗粒形状，电极材料在电极活性材料颗粒的表面上形成碳质膜，由碳质膜形成的电极活性物质颗粒的表面的涂布比例为80％以上 ，并且由电极材料中的碳量，电极材料的比表面积和碳质膜的平均膜厚计算出的碳质膜的表观密度（＆rgr; V）在0.10g cm 3至1.08g / cm 3。

公开(公告)号：US20140335413A1

公开(公告)日：2014-11-13

申请号：US14263167

申请日：2014-04-28

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kenta OOISHI ,  Takao KITAGAWA ,  Kouji OONO ,  Satoru OSHITARI

IPC: H01M4/36

CPC classification number: H01M4/366 ,  H01M4/136 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2220/20 ,  Y02E60/122

Abstract: An electrode material includes Fe-containing olivine-structured LixAyDzPO4 (wherein A represents one or more elements selected from the group consisting of Co, Mn, Ni, Cu, and Cr; D represents one or more elements selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, Y, and rare earth elements; 0

Abstract translation: 电极材料包括含Fe橄榄石结构的LixAyDzPO4（其中A表示选自Co，Mn，Ni，Cu和Cr中的一种或多种元素; D表示选自Mg， Ca，Sr，Ba，Ti，Zn，B，Al，Ga，In，Si，Ge，Sc，Y和稀土元素; 0

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.