-
公开(公告)号：US20240021794A1
公开(公告)日：2024-01-18
申请号：US18034913
申请日：2021-10-04
Applicant: GS Yuasa International Ltd.
Inventor： Daisuke Endo , Shinya Otani , Satoshi Hoshino
CPC classification number: H01M4/366 , H01M4/587 , H01M4/5825 , H01M4/133 , H01M4/136 , C01B25/45 , H01G11/32 , H01G11/46 , H01M2004/028
Abstract: In a positive active material for energy storage device according to an aspect of the present invention, at least part of a surface is coated with carbon, a ratio of full width at half maximum of a peak in a charged state to a peak in a discharged state is 0.85 or more and 1.13 or less in a peak corresponding to a (131) plane observed by powder X-ray diffraction using CuKα radiation, and the positive active material for energy storage device is a compound represented by the following Formula 1.
LiFexMn(1−x)PO4(0≤x≤1) 1-
公开(公告)号：US20200381720A1
公开(公告)日：2020-12-03
申请号：US16771281
申请日：2018-12-14
Applicant: GS Yuasa International Ltd.
Inventor： Daisuke Endo , Hiromasa Muramatsu
Abstract: Disclosed is a positive active material for a nonaqueous electrolyte secondary battery containing a lithium transition metal composite oxide, in which the lithium transition metal composite oxide has an α-NaFeO2 structure, a molar ratio Li/Me of Li and a transition metal (Me) of 1.05≤Li/Me≤1.4, and a porosity of 5 to 15%.
-
公开(公告)号：US10727532B2
公开(公告)日：2020-07-28
申请号：US16061953
申请日：2016-12-14
Applicant: GS Yuasa International Ltd.
Inventor： Daisuke Endo , Takashi Shimizu
IPC: H01M4/52 , H01M4/50 , H01M4/38 , H01M10/0525 , H01M4/525 , H01M4/505 , H01M10/0566 , H01M10/052 , C01G53/00 , H01M10/04 , H01M10/056
Abstract: The positive active material for a lithium secondary battery includes a lithium transition metal composite oxide having an α-NaFeO2 structure, and having a diffraction peak at 2θ=44±1° and a diffraction peak at 2θ=18.6±1° in a powder X-ray diffraction diagram using a CuKα ray. In a ratio FWHM (003)/FWHM (104) of a full width at half maximum FWHM (003) for the diffraction peak at 2θ=18.6±1° to a full width at half maximum FWHM (104) for the diffraction peak at 2θ=44±1°, a ratio of FWHM (003)/FWHM (104) in a charge state immediately after a discharge state to FWHM (003)/FWHM (104) in the discharge state is 0.72 or more.
-
公开(公告)号：US10673070B2
公开(公告)日：2020-06-02
申请号：US15576079
申请日：2016-05-27
Applicant: GS Yuasa International Ltd.
Inventor： Daisuke Endo , Hiromasa Muramatsu
IPC: H01M6/18 , H01M4/505 , H01M4/525 , H01M10/052 , H01M4/02
Abstract: Provided is a positive active material for a nonaqueous electrolyte secondary battery which includes a lithium transition metal composite oxide. A molar ratio (Li/Me) of Li and a transition metal (Me) that form the lithium transition metal composite oxide is more than 1. The transition metal (Me) includes Mn, Ni and Co. The lithium transition metal composite oxide has an α-NaFeO2-type crystal structure, an X-ray diffraction pattern attributable to a space group R3-m, and a full width at half maximum (FWHM (104)) for the diffraction peak of the (104) plane at a Miller index hkl in X-ray diffraction measurement using a CuKα ray of 0.21° or more and 0.55° or less. A ratio (FWHM (003)/FWHM (104)) of a full width at half maximum for the diffraction peak of the (003) plane and the full width at half maximum for the diffraction peak of the (104) plane at the Miller index hkl is 0.72 or less. Particles of the lithium transition metal composite oxide have a peak differential pore volume of 0.33 mm3/(g·nm) or less.
-
Patent Agency Ranking
公开(公告)号：US09478795B2
公开(公告)日：2016-10-25
申请号：US14790792
申请日：2015-07-02
Applicant: GS YUASA INTERNATIONAL LTD.
Inventor： Daisuke Endo , Hiromasa Muramatsu
CPC classification number: H01M4/131 , C01G53/006 , C01G53/50 , C01P2002/20 , C01P2002/76 , C01P2004/51 , C01P2004/61 , C01P2006/40 , H01M4/48 , H01M4/505 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M2004/028 , H01M2220/20 , Y02E60/122 , Y02P70/54 , Y02T10/7011
Abstract: Provided is a positive active material for a lithium secondary battery includes a lithium transition metal composite oxide having an α-NaFeO2-type crystal structure and represented by the composition formula of Li1+αMe1−αO2 (Me is a transition metal including Co, Ni and Mn and α>0). The positive active material contains Na in an amount of 900 ppm or more and 16000 ppm or less, or K in an amount of 1200 ppm or more and 18000 ppm or less.
-
26.发明申请公开(公告)号：US20150311499A1
公开(公告)日：2015-10-29
申请号：US14790792
申请日：2015-07-02
Applicant: GS YUASA INTERNATIONAL LTD.
Inventor： Daisuke Endo , Hiromasa Muramatsu
CPC classification number: H01M4/131 , C01G53/006 , C01G53/50 , C01P2002/20 , C01P2002/76 , C01P2004/51 , C01P2004/61 , C01P2006/40 , H01M4/48 , H01M4/505 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M2004/028 , H01M2220/20 , Y02E60/122 , Y02P70/54 , Y02T10/7011
Abstract: Provided is a positive active material for a lithium secondary battery includes a lithium transition metal composite oxide having an α-NaFeO2-type crystal structure and represented by the composition formula of Li1+αMe1−αO2 (Me is a transition metal including Co, Ni and Mn and α>0). The positive active material contains Na in an amount of 900 ppm or more and 16000 ppm or less, or K in an amount of 1200 ppm or more and 18000 ppm or less.
Abstract translation: 本发明提供一种锂二次电池用正极活性物质，其具有由Li-1 +αMe1-αO2组成式表示的具有α-NaFeO 2型晶体结构的锂过渡金属复合氧化物（Me是包括Co，Ni的过渡金属和 Mn和α> 0）。 正极活性物质含有900ppm以上且16000ppm以下的Na，或1200ppm以上至18000ppm以下的K。
-
27.发明申请ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING ACTIVE MATERIAL, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 有权非电解电解质二次电池的活性材料，制造活性材料的方法，非电解电解质二次电池的电极和非电解电解质二次电池公开(公告)号：US20150008364A1
公开(公告)日：2015-01-08
申请号：US14375349
申请日：2012-12-05
Applicant: GS Yuasa International Ltd.
Inventor： Daisuke Endo
CPC classification number: H01M4/131 , C01G53/50 , C01P2002/22 , C01P2002/70 , C01P2002/72 , C01P2002/76 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2006/40 , H01M4/502 , H01M4/505 , H01M4/523 , H01M4/525 , H01M10/052 , H01M10/0525 , Y02E60/122 , Y02P70/54 , Y02T10/7011
Abstract: An active material for a nonaqueous electrolyte secondary battery includes a lithium transition metal composite oxide which has an α-NaFeO2-type crystal structure, is represented by the compositional formula Li1+αMe1−αO2 (Me is a transition metal element containing Mn, Ni and Co; and 0
Abstract translation: 非水电解质二次电池用活性物质包括具有α-NaFeO 2型晶体结构的锂过渡金属复合氧化物，由组成式Li1 +αMe1-αO2表示（Me是含有Mn，Ni的过渡金属元素和 Co和0 <α<1），满足1.250＆nlE;（1 +α）/（1-α）＆nlE; 1.425的要求。 2θ时的衍射峰的半峰宽= 18.6°±1°为0.20°至0.27°，和/或2θ处的衍射峰的半峰宽= 44.1°±1°为0.26°至0.39° 使用CuKα辐射的X射线衍射测量。 当电化学氧化成5.0V（相对于Li / Li +）的电位时，锂过渡金属复合氧化物作为X射线衍射图上的六方晶（空间群R3-m）的单相被观察。
-
28.发明申请ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING ACTIVE MATERIAL, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开非电解电解质二次电池的活性材料，制造活性材料的方法，非电解电解质二次电池的电极和非电解电解质二次电池公开(公告)号：US20140308584A1
公开(公告)日：2014-10-16
申请号：US14352183
申请日：2012-10-24
Applicant: GS Yuasa International Ltd.
Inventor： Daisuke Endo
CPC classification number: C01D15/02 , C01G53/50 , C01P2002/76 , C01P2004/51 , C01P2004/61 , C01P2006/11 , C01P2006/12 , H01M4/505 , H01M4/525 , H01M10/052
Abstract: An active material for a nonaqueous electrolyte secondary battery contains a lithium transition metal composite oxide having an α-NaFeO2-type crystal structure and being represented by the compositional formula: Li1+αMe1−αO2 wherein Me is a transition metal element containing Co, Ni and Mn and α>0. In the lithium transition metal composite oxide, the molar ratio of Li to the transition metal element Me (Li/Me) is 1.2 to 1.4, D10 is 6 to 9 μm, D50 is 13 to 16 μm and D90 is 18 to 32 μm where particle sizes at cumulative volumes of 10%, 50% and 90% in a particle size distribution of secondary particles are D10, D50 and D90, respectively, and the particle size of a primary particle is 1 μm or less.
Abstract translation: 非水电解质二次电池用活性物质含有具有α-NaFeO 2型晶体结构的锂过渡金属复合氧化物，由以下组成式表示：Li1 +αMe1-αO2其中Me为含有Co，Ni的过渡金属元素， Mn和α> 0。 在锂过渡金属复合氧化物中，Li与过渡金属元素Me（Li / Me）的摩尔比为1.2〜1.4，D10为6〜9μm，D50为13〜16μm，D90为18〜32μm， 在二次粒子的粒度分布中累积体积为10％，50％和90％的粒径分别为D10，D50和D90，一次粒子的粒径为1μm以下。
-
29.发明申请ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCTION OF THE ACTIVE MATERIAL, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开非电解电解质二次电池的活性材料，生产活性材料的方法，非电解电解质二次电池和非电解电解质二次电池的电极公开(公告)号：US20130230775A1
公开(公告)日：2013-09-05
申请号：US13778616
申请日：2013-02-27
Applicant: GS YUASA INTERNATIONAL LTD.
Inventor： Daisuke Endo
IPC: H01M4/131
CPC classification number: H01M4/131 , C01G51/04 , C01G53/003 , C01G53/50 , C01P2002/70 , C01P2002/76 , C01P2004/61 , C01P2004/84 , C01P2006/11 , H01M4/366 , H01M4/505 , H01M4/525 , H01M10/052
Abstract: There is provided an active material for a nonaqueous electrolyte secondary battery, including a lithium-transition metal composite oxide which has an α-NaFeO2-type crystal structure and of which the average composition is represented by the composition formula of Li1+αMe1−αO2 (Me is a transition metal containing Co, Ni and Mn; and α>0), wherein the lithium-transition metal composite oxide is a particle having a core and a coated part, the cobalt concentration of the coated part is higher than the cobalt concentration of the core, the manganese concentration of the coated part is lower than the manganese concentration of the core, and the ratio of cobalt present in the coated part is 3 to 10% in terms of a molar ratio based on the amount of the transition metal present in the core.
Abstract translation: 提供了一种用于非水电解质二次电池的活性材料，其包括具有α-NaFeO 2型晶体结构的锂 - 过渡金属复合氧化物，其平均组成由Li1 +αMe1-αO2的组成式表示（ Me是含有Co，Ni和Mn的过渡金属;α> 0），其中锂 - 过渡金属复合氧化物是具有芯和涂覆部分的颗粒，涂覆部分的钴浓度高于钴浓度 的核心，所述被覆部的锰浓度低于所述芯的锰浓度，所述涂布部中存在的钴的比例，以所述过渡金属的摩尔比为3〜10％ 存在于核心。
-
-
-
-
-
-
-
-
Search Results
29
records
(took 0.032 seconds)
