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11.发明申请公开(公告)号：US20190305364A1
公开(公告)日：2019-10-03
申请号：US16144271
申请日：2018-09-27
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Masataka OYAMA , Satoru OSHITARI , Ryuuta YAMAYA , Takao KITAGAWA
IPC: H01M10/0525 , H01M4/505 , H01M4/525
Abstract: A cathode material for a lithium ion secondary battery enabling diffusion of lithium ions in a two-dimensional direction or a three-dimensional direction in crystals is provided. The cathode material is formed by coating a surface of a central particle represented by-the Formula LixFe1−y−zAyMzPO4 with a carbonaceous film, in which a content of a carbon atom is 0.3% by mass or more and 3.4% by mass or less, and, in a Moessbauer spectrum obtained by Moessbauer spectroscopy, when an area intensity of a spectrum having an isomer shift value in a range of 1.0 mm/sec or more and 1.4 mm/sec or less is represented by α, and an area intensity of a spectrum having an isomer shift value in a range of 0.3 mm/sec or more and 0.7 mm/sec or less is represented by β, {β/((β+α)×(1−y−z)} is 0.01 or more and 0.1 or less.
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12.发明申请公开(公告)号：US20190103611A1
公开(公告)日：2019-04-04
申请号：US15936164
申请日：2018-03-26
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Masataka OYAMA , Ryuuta YAMAYA , Takao KITAGAWA
Abstract: A cathode material for a lithium-ion secondary battery including: granulated bodies in which primary particles are aggregated, wherein an average particle diameter of the granulated bodies is 0.90 μm or more and 2.00 μm or less, particle diameters of 90% or more of the granulated bodies are 0.25 μm or more and 3.50 μm or less, wherein particle diameters of the granulated bodies are evaluated such that 300 granulated bodies are randomly selected from a view of the granulated bodies using a scanning electron microscope, a plurality of diameters of each of the 300 granulated bodies that pass through a central point thereof are evaluated, and a maximum diameter selected from said plurality of diameters is considered as a particle diameter of each of the granulated bodies.
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公开(公告)号：US20170288226A1
公开(公告)日：2017-10-05
申请号：US15463207
申请日：2017-03-20
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Masataka OYAMA , Takao KITAGAWA
IPC: H01M4/58 , H01M10/0525
CPC classification number: H01M4/5825 , H01M4/136 , H01M4/366 , H01M4/625 , H01M10/0525 , H01M2004/021 , H01M2004/028
Abstract: A lithium-ion secondary battery including a cathode, an anode, and an electrolyte, in which the lithium-ion secondary battery includes inorganic phosphate particles, and the cathode includes cathode active material particles which include central particles made of LixAyMzPO4 (0≦x≦1.1, 0.8≦y≦1.1, and 0≦z≦0.2; here, A represents at least one element selected from the group consisting of Fe, Mn, Co, and Ni, and M represents at least one element selected from the group consisting of Mg, Ca, Co, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, and rare earth elements) and a carbonaceous film that coats surfaces of the central particles.
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公开(公告)号：US20170288212A1
公开(公告)日：2017-10-05
申请号：US15280762
申请日：2016-09-29
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Masataka OYAMA , Takao KITAGAWA
IPC: H01M4/36 , H01M4/62 , H01M4/587 , H01M10/0525 , H01M4/58
CPC classification number: H01M4/366 , H01M4/5825 , H01M4/587 , H01M4/625 , H01M4/628 , H01M10/0525 , H01M2004/028
Abstract: A cathode material for a lithium-ion secondary battery including cathode active material particles which have central particles made of LixAyMzPO4 (0≦x≦1.1, 0.8≦y≦1.1, and 0≦z≦0.2; here, A represents at least one element selected from the group consisting of Fs, Mn, Co, and Ni, and M represents at least one element selected from the group consisting of Mg, Ca, Co, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, and rare earth elements) and a carbonaceous film that coats surfaces of the central particles; and inorganic phosphate salt particles.
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公开(公告)号：US20150380725A1
公开(公告)日：2015-12-31
申请号：US14634353
申请日：2015-02-27
Applicant: Sumitomo Osaka Cement Co., Ltd.
Inventor： Hiroyuki MINE , Hirofumi YASUMIISHI , Kouji OONO , Takao KITAGAWA
CPC classification number: H01M4/133 , H01M4/0471 , H01M4/366 , H01M4/5825 , H01M4/587 , H01M4/621 , H01M4/625 , H01M4/661 , H01M10/0525 , H01M2004/021 , H01M2004/028
Abstract: An electrode material in which an electrode active material having a carbonaceous film formed on the surface is used and which is capable of suppressing a voltage drop when high-speed charge and discharge is carried out in a low-temperature environment 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, and the carbonaceous film is constituted randomly stacking graphene layers. Preferably, an inflection ratio of a lithium ion migration path in the carbonaceous film in the electrode material is in a range of 1.1 to 100.
Abstract translation: 提供一种电极材料，其中使用在表面上形成有碳质膜的电极活性材料，并且能够在低温环境下进行高速充放电时能够抑制电压降。 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，碳质膜是随机堆积的石墨烯层。 优选地，电极材料中碳质膜中的锂离子迁移路径的折射率为1.1〜100。
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Patent Agency Ranking
16.发明申请公开(公告)号：US20140106224A1
公开(公告)日：2014-04-17
申请号：US14134713
申请日：2013-12-19
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Takao KITAGAWA , Mitsumasa SAITO
CPC classification number: H01M4/583 , C01B25/37 , H01M4/13 , H01M4/366 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/625 , Y02E60/122 , Y02P70/54
Abstract: An electrode material containing an electrode active material, and a carbonaceous coating film which covers the electrode active material and contains sulfur; and an electrode material including a secondary particle including a plurality of primary particles as the electrode active material, wherein the primary particles are covered with a carbonaceous coating film so that the carbonaceous coating film is interposed between the primary particles and the carbonaceous coating film contains sulfur.
Abstract translation: 含有电极活性物质的电极材料和覆盖电极活性物质并含有硫的碳质涂膜; 以及包含作为电极活性物质的多个一次粒子的二次粒子的电极材料，其中，所述一次粒子被碳质涂膜覆盖，所述碳质涂膜插入在所述一次粒子之间，所述含碳涂膜含有硫 。
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公开(公告)号：US20200161657A1
公开(公告)日：2020-05-21
申请号：US16737270
申请日：2020-01-08
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Masataka OYAMA , Takao KITAGAWA
IPC: H01M4/58 , H01M4/62 , H01M4/36 , H01M4/136 , H01M10/0525
Abstract: A lithium-ion secondary battery including a cathode, an anode, and an electrolyte, in which the lithium-ion secondary battery includes inorganic phosphate particles, and the cathode includes cathode active material particles which include central particles made of LixAyMzPO4 (0≤x≤1.1, 0.8≤y≤1.1, and 0≤z≤0.2; here, A represents at least one element selected from the group consisting of Fe, Mn, Co, and Ni, and M represents at least one element selected from the group consisting of Mg, Ca, Co, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, and rare earth elements) and a carbonaceous film that coats surfaces of the central particles.
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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.
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公开(公告)号：US20160172664A1
公开(公告)日：2016-06-16
申请号：US14652305
申请日：2014-08-07
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Hiroyuki MINE , Takao KITAGAWA
IPC: H01M4/36 , H01M4/62 , H01M4/58 , H01M10/0525
CPC classification number: H01M4/366 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/625 , H01M10/0525
Abstract: An electrode material is provided in which a coating of a carbonaceous material is formed efficiently, uniformly and strongly on the surfaces of electrode active material particles, and therefore electron conductivity and the charge and discharge capacity of batteries are improved. The electrode material includes composite particles, which includes a carbonaceous substance and an electrode active material, wherein a carbonaceous material is provided on surfaces of electrode active material particles, and a standard rate constant of a redox reaction of ferrocene occurring on the surfaces of the composite particles is 1×10−5 cm/s or more.
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有效，均匀且牢固地形成碳质材料的涂层，因此提高了电池的电子传导性和充电和放电能力。 电极材料包括复合颗粒，其包括含碳物质和电极活性材料，其中在电极活性材料颗粒的表面上提供碳质材料，并且在复合材料表面上发生的二茂铁的氧化还原反应的标准速率常数 颗粒为1×10 -5 cm / s以上。
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公开(公告)号：US20150380734A1
公开(公告)日：2015-12-31
申请号：US14718725
申请日：2015-05-21
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Takao KITAGAWA , Hiroyuki Mine , Hirofumi Yasumiishi
IPC: H01M4/36 , H01M10/0525 , H01M4/587 , H01M4/133
CPC classification number: H01M4/366 , H01M4/0471 , H01M4/136 , H01M4/5825 , H01M4/625 , H01M10/0525
Abstract: An electrode material for which an electrode active material having a carbonaceous film formed on a surface is used and which is capable of suppressing voltage drop when high-speed charge and discharge is carried out in a low-temperature environment 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, and an average of discharge capacity ratios between a 35 C discharge capacity at −10° C. of a single particle of the electrode material and a 1 C discharge capacity at −10° C. of a single particle of the electrode material is 0.50 or more.
Abstract translation: 提供了在表面形成有碳质膜的电极活性物质的电极材料，其能够在低温环境下进行高速充放电时抑制电压降。 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，并且在-10℃的35℃放电容量之间的平均放电容量比 电极材料的单个颗粒和电极材料的单个颗粒在-10℃下的1C放电容量为0.50以上。
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