公开(公告)号：US20130244114A1

公开(公告)日：2013-09-19

申请号：US13819068

申请日：2011-08-29

申请人： Akinori Yamamoto ,  Tomoko Okita ,  Hiroshi Yamamoto ,  Kohji Mori ,  Kazumichi Koga ,  Akihisa Kajiyama

发明人： Akinori Yamamoto ,  Tomoko Okita ,  Hiroshi Yamamoto ,  Kohji Mori ,  Kazumichi Koga ,  Akihisa Kajiyama

IPC分类号： H01M4/485

CPC分类号： H01M4/485 ,  C01G23/005 ,  C01G23/006 ,  C01P2002/32 ,  C01P2002/60 ,  C01P2002/70 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2004/80 ,  C01P2006/12 ,  C01P2006/40 ,  H01B1/08 ,  H01M10/0525 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54

摘要： According to the present invention, there are provided lithium titanate particles which exhibit an excellent initial discharge capacity and an enhanced high-efficiency discharge capacity retention rate as an active substance for non-aqueous electrolyte secondary batteries and a process for producing the lithium titanate particles, and Mg-containing lithium titanate particles. The present invention relates to lithium titanate particles with a spinel structure comprising TiO2 in an amount of not more than 1.5%, Li2TiO3 in an amount of not less than 1% and not more than 6%, and Li4Ti5O12 in an amount of not less than 94% and not more than 99% as determined according to Rietveld analysis when indexed with Fd-3m by XRD, and having a specific surface area of 7 to 15 m2/g as measured by BET method, a process for producing lithium titanate particles comprising the steps of adding and mixing a water-soluble lithium solution into a water suspension of an oxide of titanium having a BET specific surface area of 40 to 400 m2/g and a primary particle diameter of 5 to 50 nm and subjecting the resulting mixed suspension to aging reaction at a temperature of 50 to 100° C.; subjecting the resulting reaction product to filtration, drying and pulverization; and subjecting the obtained dry particles to heat-calcination treatment at a temperature of 550 to 800° C., and Mg-containing lithium titanate particles having a composition represented by the formula: LixMgyTizO4 wherein x, z>0; 0.01≦y≦0.20; 0.01≦y/z≦0.10; and 0.5≦(x+y)/z≦1.0, the Mg-containing lithium titanate particles having a BET specific surface area of 5 to 50 m2/g, a spinel single phase as a crystal structure, and a lattice constant (a) represented by a value of 0.050y+8.3595

公开(公告)号：US09293235B2

公开(公告)日：2016-03-22

申请号：US13819068

申请日：2011-08-29

申请人： Akinori Yamamoto ,  Tomoko Okita ,  Hiroshi Yamamoto ,  Kohji Mori ,  Kazumichi Koga ,  Akihisa Kajiyama

发明人： Akinori Yamamoto ,  Tomoko Okita ,  Hiroshi Yamamoto ,  Kohji Mori ,  Kazumichi Koga ,  Akihisa Kajiyama

IPC分类号： H01B1/08 ,  H01M4/485 ,  C01G23/00 ,  H01M10/0525

CPC分类号： H01M4/485 ,  C01G23/005 ,  C01G23/006 ,  C01P2002/32 ,  C01P2002/60 ,  C01P2002/70 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2004/80 ,  C01P2006/12 ,  C01P2006/40 ,  H01B1/08 ,  H01M10/0525 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54

摘要： According to the present invention, there are provided lithium titanate particles which exhibit an excellent initial discharge capacity and an enhanced high-efficiency discharge capacity retention rate as an active substance for non-aqueous electrolyte secondary batteries and a process for producing the lithium titanate particles, and Mg-containing lithium titanate particles.

摘要翻译： 根据本发明，提供了作为非水电解质二次电池的活性物质，具有优异的初始放电容量和提高的高效率放电容量保持率的钛酸锂颗粒和钛酸锂颗粒的制造方法， 和含Mg的钛酸锂颗粒。

公开(公告)号：US09496551B2

公开(公告)日：2016-11-15

申请号：US12742126

申请日：2008-11-12

申请人： Kazumichi Koga ,  Masayuki Uegami ,  Akihisa Kajiyama ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

发明人： Kazumichi Koga ,  Masayuki Uegami ,  Akihisa Kajiyama ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

IPC分类号： H01B1/08 ,  H01M4/505 ,  C01G45/12 ,  C01G49/00 ,  C01G51/00 ,  C01G53/00 ,  H01M10/052

CPC分类号： H01M4/505 ,  C01G45/1242 ,  C01G49/009 ,  C01G51/54 ,  C01G53/54 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/40 ,  H01B1/08 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54

摘要： The present invention relates to lithium manganate particles having a primary particle diameter of not less than 1 μm and an average particle diameter (D50) of not less than 2 μm and not more than 10 μm as measured by a particle size distribution meter, and forming particles having substantially a single phase, which have a composition represented by the following chemical formula: Li1+xMn2−x−yY1yO4+Y2 where Y1 is at least one element selected from the group consisting of Ni, Co, Mg, Fe, Al, Cr and Ti; Y2 is at least one element constituting a sintering aid having a melting point of not higher than 800° C., x and y satisfy 0.03≦x≦0.15 and 0.05≦y≦0.20, respectively, and Y2 is present in an amount of 0.1 to 2.5 mol % based on Mn; the Y1 element being dispersed within the respective particles, and an X-ray diffraction intensity ratio of I(400)/I(111) of the particles being not less than 38% and an X-ray diffraction intensity ratio of I(440)/I(111) thereof being not less than 18%.

公开(公告)号：US20100288969A1

公开(公告)日：2010-11-18

申请号：US12742126

申请日：2008-11-12

申请人： Kazumichi Koga ,  Masayuki Uegami ,  Akihisa Kajiyama ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

发明人： Kazumichi Koga ,  Masayuki Uegami ,  Akihisa Kajiyama ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

IPC分类号： H01M4/50

CPC分类号： H01M4/505 ,  C01G45/1242 ,  C01G49/009 ,  C01G51/54 ,  C01G53/54 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/40 ,  H01B1/08 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54

摘要： The present invention relates to lithium manganate particles having a primary particle diameter of not less than 1 μm and an average particle diameter (D50) of not less than 2 μm and not more than 10 μm as measured by a particle size distribution meter, and forming particles having substantially a single phase, which have a composition represented by the following chemical formula: Li1+xMn2−x−yY1yO4+Y2 where Y1 is at least one element selected from the group consisting of Ni, Co, Mg, Fe, Al, Cr and Ti; Y2 is at least one element constituting a sintering aid having a melting point of not higher than 800° C., x and y satisfy 0.03≦x≦0.15 and 0.05≦y≦0.20, respectively, and Y2 is present in an amount of 0.1 to 2.5 mol % based on Mn; the Y1 element being dispersed within the respective particles, and an X-ray diffraction intensity ratio of I(400)/I(111) of the particles being not less than 38% and an X-ray diffraction intensity ratio of I(440)/I(111) thereof being not less than 18%. The lithium manganate particles of the present invention have a high output and are excellent in high-temperature stability.

摘要翻译： 本发明涉及一次粒径为1μm以上的平均粒径（D50）为2μm以上且10μm以下的由粒径分布计测定的锰酸锂颗粒，形成 具有基本上单相的颗粒，其具有由以下化学式表示的组成：Li1 + xMn2-x-yY1yO4 + Y2，其中Y1是选自Ni，Co，Mg，Fe，Al中的至少一种元素， Cr和Ti; Y2是构成熔点不高于800℃的烧结助剂的至少一种元素，x和y分别满足0.03＆nlE; x＆lt; ll; 0.15,0.05＆nlE; y＆nlE; 0.20，Y2以 相对于Mn为0.1〜2.5摩尔％ Y1元素分散在各自的粒子内，粒子的I（400）/ I（111）的X射线衍射强度比不小于38％，X射线衍射强度比I（440） / I（111）不小于18％。 本发明的锰酸锂颗粒具有高的输出，并且具有优异的高温稳定性。

公开(公告)号：US10161057B2

公开(公告)日：2018-12-25

申请号：US14007732

申请日：2011-12-26

申请人： Hiroyasu Watanabe ,  Daisuke Morita ,  Manabu Yamamoto ,  Kazumichi Koga ,  Akihisa Kajiyama ,  Hiroaki Masukuni ,  Hideaki Sadamura ,  Ryuta Masaki ,  Kazutoshi Matsumoto

发明人： Hiroyasu Watanabe ,  Daisuke Morita ,  Manabu Yamamoto ,  Kazumichi Koga ,  Akihisa Kajiyama ,  Hiroaki Masukuni ,  Hideaki Sadamura ,  Ryuta Masaki ,  Kazutoshi Matsumoto

IPC分类号： H01M4/48 ,  H01M4/52 ,  H01M4/525 ,  C30B1/10 ,  C01G45/12 ,  C01G51/00 ,  C01G53/00 ,  H01M4/505 ,  C30B1/02

摘要： The present invention provides a precursor of positive electrode active substance particles for non-aqueous electrolyte secondary batteries which have a high discharge voltage and a high discharge capacity, hardly suffer from side reactions with an electrolyte solution, and are excellent in cycle characteristics, positive electrode active substance particles for non-aqueous electrolyte secondary batteries, and processes for producing these particles, and a non-aqueous electrolyte secondary battery. The present invention relates to positive electrode active substance particles for non-aqueous electrolyte secondary batteries having a spinel structure with a composition represented by the following chemical formula (1), in which the positive electrode active substance particles satisfy the following characteristic (A) and/or characteristic (B) when indexed with Fd−3m in X-ray diffraction thereof: (A) when indexed with Fd−3m in X-ray diffraction of the positive electrode active substance particles, a ratio of I(311) to I(111) [I(311)/I(111)] is in the range of 35 to 43%, and/or (B) when indexed with Fd−3m in X-ray diffraction of the positive electrode active substance particles, a gradient of a straight line determined by a least square method in a graph prepared by plotting sin θ in an abscissa thereof and B cos θ in an ordinate thereof wherein B is a full-width at half maximum with respect to each peak position 2θ (10 to 90°) is in the range of 3.0×10−4 to 20.0×10−4; and Li1+xMn2−y−zNiyMzO4  Chemical Formula (1) wherein x, y, z fall within the range of −0.05≤x≤0.15, 0.4≤y≤0.6 and 0≤z≤0.20, respectively; and M is at least one element selected from the group consisting of Mg, Al, Si, Ca, Ti, Co, Zn, Sb, Ba, W and Bi.

公开(公告)号：US20140034872A1

公开(公告)日：2014-02-06

申请号：US14007732

申请日：2011-12-26

申请人： Hiroyasu Watanabe ,  Daisuke Morita ,  Manabu Yamamoto ,  Kazumichi Koga ,  Akihisa Kajiyama ,  Hiroaki Masukuni ,  Hideaki Sadamura ,  Ryuta Masaki ,  Kazutoshi Matsumoto

发明人： Hiroyasu Watanabe ,  Daisuke Morita ,  Manabu Yamamoto ,  Kazumichi Koga ,  Akihisa Kajiyama ,  Hiroaki Masukuni ,  Hideaki Sadamura ,  Ryuta Masaki ,  Kazutoshi Matsumoto

IPC分类号： H01M4/505 ,  C30B1/10 ,  C30B1/02 ,  H01M4/525

CPC分类号： C30B1/10 ,  C01G45/1242 ,  C01G51/54 ,  C01G53/54 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/80 ,  C30B1/02 ,  H01M4/505 ,  H01M4/525 ,  Y10T428/2982

摘要： The present invention provides a precursor of positive electrode active substance particles for non-aqueous electrolyte secondary batteries which have a high discharge voltage and a high discharge capacity, hardly suffer from side reactions with an electrolyte solution, and are excellent in cycle characteristics, positive electrode active substance particles for non-aqueous electrolyte secondary batteries, and processes for producing these particles, and a non-aqueous electrolyte secondary battery. The present invention relates to positive electrode active substance particles for non-aqueous electrolyte secondary batteries having a spinel structure with a composition represented by the following chemical formula (1), in which the positive electrode active substance particles satisfy the following characteristic (A) and/or characteristic (B) when indexed with Fd−3m in X-ray diffraction thereof: (A) when indexed with Fd−3m in X-ray diffraction of the positive electrode active substance particles, a ratio of I(311) to I(111) [I(311)/I(111)] is in the range of 35 to 43%, and/or (B) when indexed with Fd−3m in X-ray diffraction of the positive electrode active substance particles, a gradient of a straight line determined by a least square method in a graph prepared by plotting sine in an abscissa thereof and B cos θ in an ordinate thereof wherein B is a full-width at half maximum with respect to each peak position 2θ (10 to 90°) is in the range of 3.0×10−4 to 20.0×10−4; and Li1+xMn2−y−zNiyMzO4  Chemical Formula (1) wherein x, y, z fall within the range of −0.05≦x≦0.15, 0.4≦y≦0.6 and 0≦z≦0.20, respectively; and M is at least one element selected from the group consisting of Mg, Al, Si, Ca, Ti, Co, Zn, Sb, Ba, W and Bi.

公开(公告)号：US20110223483A1

公开(公告)日：2011-09-15

申请号：US13121229

申请日：2009-09-29

申请人： Kazumichi Koga ,  Masayuki Uegami ,  Hioraki Masukuni ,  Kazutoshi Matsumoto ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

发明人： Kazumichi Koga ,  Masayuki Uegami ,  Hioraki Masukuni ,  Kazutoshi Matsumoto ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

IPC分类号： H01M4/505 ,  H01M4/88

CPC分类号： H01M4/505 ,  C01G45/02 ,  C01G45/1242 ,  C01P2002/52 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/80 ,  H01B1/08 ,  H01M4/0471 ,  H01M4/46 ,  H01M4/485 ,  H01M10/0525

摘要： The present invention provides lithium manganate which has a high output and is excellent in high-temperature stability. The present invention relates to lithium manganate particles which are produced by mixing a lithium compound, a manganese compound, a Y compound and an A compound with each other and then calcining the resulting mixture, and have a composition represented by the following chemical formula 1 and an average secondary particle diameter (D50) of 1 to 15 μm, Li1+xMn2−x−yYyO4+zA  (Chemical Formula) in which Y is at least one element selected from the group consisting of Al and Mg; A is a sintering aid element having a melting point of not higher than 850° C.; x and y satisfy 0.03≦x≦0.15 and 0≦y≦0.20, respectively; z is in the range of 0 to 2.5 mol % based on Mn, wherein the lithium manganate particles have a sulfur content of not more than 100 ppm.

摘要翻译： 本发明提供了具有高产出并且具有优异的高温稳定性的锰酸锂。 本发明涉及通过将锂化合物，锰化合物，Y化合物和A化合物彼此混合然后煅烧所得混合物而制备的锰酸锂颗粒，并且具有由以下化学式1和 平均二次粒径（D50）为1〜15μm，其中Y为选自Al和Mg中的至少一种元素的Li1 + xMn2-x-yYyO4 + zA（化学式） A是熔点不高于850℃的烧结助剂元素; x和y分别满足0.03＆nlE; x＆nlE; 0.15和0＆nlE; y＆nlE; 0.20; z在Mn的范围内为0〜2.5摩尔％，其中，锰酸锂颗粒的硫含量不大于100ppm。

公开(公告)号：US08323612B2

公开(公告)日：2012-12-04

申请号：US12810367

申请日：2008-12-26

申请人： Kazumichi Koga ,  Masayuki Uegami ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

发明人： Kazumichi Koga ,  Masayuki Uegami ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

IPC分类号： C01G45/12 ,  C01D1/02 ,  C01G37/14 ,  C01G23/00 ,  C01F7/00

CPC分类号： C01G45/1242 ,  C01G45/02 ,  C01G49/0072 ,  C01G51/54 ,  C01G53/54 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/80 ,  C01P2004/84 ,  C01P2006/12 ,  C01P2006/40 ,  C04B35/016 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3232 ,  C04B2235/3241 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/34 ,  C04B2235/763 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  Y10T428/2982

摘要： The present invention relates to lithium manganate particles having a primary particle diameter of 1 to 8 μm and forming substantially single-phase particles, which have a composition represented by the following chemical formula: Li1+xMn2-x-yY1yO4+Y2 in which Y1 is at least one element selected from the group consisting of Ni, Co, Mg, Fe, Al, Cr and Ti; Y2 is P and is present in an amount of 0.01 to 0.6 mol % based on Mn; and x and y satisfy 0.03≦x≦0.15 and 0.05≦y≦0.20, respectively, and which lithium manganate particles have a specific surface area of the lithium manganate particles of 0.3 to 0.9 m2/g (as measured by BET method); and have an average particle diameter (D50) of the lithium manganate particles of 3 to 10 μm. A positive electrode active substance of a lithium ion secondary battery using the lithium manganate particles of the present invention has a high output and is excellent in high-temperature stability.

摘要翻译： 本发明涉及一次粒径为1〜8μm的锰酸锂颗粒，并形成基本上单相的颗粒，其具有由以下化学式表示的组成：Li1 + xMn2-x-yY1yO4 + Y2，其中Y1为 选自Ni，Co，Mg，Fe，Al，Cr和Ti中的至少一种元素; Y2为P，相对于Mn为0.01〜0.6摩尔％ x和y分别满足0.03＆nlE; x＆lt; ll; 0.15和0.05＆amp; nlE; y＆nlE; 0.20，锰酸锂颗粒的比表面积为0.3〜0.9m 2 / g（通过BET法测定） ; 并且具有3〜10μm的锰酸锂颗粒的平均粒径（D50）。 使用本发明的锰酸锂颗粒的锂离子二次电池的正极活性物质的输出量高，高温稳定性优异。

公开(公告)号：US20100327221A1

公开(公告)日：2010-12-30

申请号：US12810367

申请日：2008-12-26

申请人： Kazumichi Koga ,  Masayuki Uegami ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

发明人： Kazumichi Koga ,  Masayuki Uegami ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

IPC分类号： H01M4/88 ,  C01G45/00 ,  C04B35/64

CPC分类号： C01G45/1242 ,  C01G45/02 ,  C01G49/0072 ,  C01G51/54 ,  C01G53/54 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/80 ,  C01P2004/84 ,  C01P2006/12 ,  C01P2006/40 ,  C04B35/016 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3232 ,  C04B2235/3241 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/34 ,  C04B2235/763 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  Y10T428/2982

摘要： The present invention relates to lithium manganate particles having a primary particle diameter of 1 to 8 μm and forming substantially single-phase particles, which have a composition represented by the following chemical formula: Li1+xMn2−x−yY1yO4+Y2 in which Y1 is at least one element selected from the group consisting of Ni, Co, Mg, Fe, Al, Cr and Ti; Y2 is P and is present in an amount of 0.01 to 0.6 mol % based on Mn; and x and y satisfy 0.03≦x≦0.15 and 0.05≦y≦0.20, respectively, and which lithium manganate particles have a specific surface area of the lithium manganate particles of 0.3 to 0.9 m2/g (as measured by BET method); and have an average particle diameter (D50) of the lithium manganate particles of 3 to 10 μm. A positive electrode active substance of a lithium ion secondary battery using the lithium manganate particles of the present invention has a high output and is excellent in high-temperature stability.

摘要翻译： 本发明涉及一次粒径为1〜8μm的锰酸锂颗粒，并形成基本单相颗粒，其具有由以下化学式表示的组成：Li1 + xMn2-x-yY1yO4 + Y2，其中Y1为 选自Ni，Co，Mg，Fe，Al，Cr和Ti中的至少一种元素; Y2为P，相对于Mn为0.01〜0.6摩尔％ x和y分别满足0.03＆nlE; x＆lt; ll; 0.15和0.05＆amp; nlE; y＆nlE; 0.20，锰酸锂颗粒的比表面积为0.3〜0.9m 2 / g（通过BET法测定） ; 并且具有3〜10μm的锰酸锂颗粒的平均粒径（D50）。 使用本发明的锰酸锂颗粒的锂离子二次电池的正极活性物质的输出量高，高温稳定性优异。

公开(公告)号：US09505631B2

公开(公告)日：2016-11-29

申请号：US13144361

申请日：2010-01-19

申请人： Hiroaki Masukuni ,  Kazumichi Koga ,  Masayuki Uegami ,  Kazutoshi Matsumoto

发明人： Hiroaki Masukuni ,  Kazumichi Koga ,  Masayuki Uegami ,  Kazutoshi Matsumoto

IPC分类号： H01M4/88 ,  C01G45/12

CPC分类号： C01G45/1242 ,  C01P2002/32 ,  C01P2002/52 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2004/30 ,  C01P2004/41 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  Y02E60/122 ,  Y02P70/54

摘要： The present invention relates to positive electrode active substance particles for lithium ion batteries, comprising lithium manganate particles comprising Li and Mn as main components and having a cubic spinel structure (Fd-3m), wherein primary particles of the positive electrode active substance have a dodecahedral or higher-polyhedral shape in which none of crystal planes equivalent to the (111) plane are located adjacent to each other, and flat crystal planes are crossed with each other to form a clear ridge, and an average primary particle diameter of the primary particles is not less than 1 μm and not more than 20 μm. The positive electrode active substance particles according to the present invention are excellent in packing property, load characteristics and high-temperature stability.

摘要翻译： 本发明涉及用于锂离子电池的正极活性物质颗粒，其包含以Li和Mn为主要成分并具有立方尖晶石结构（Fd-3m）的锰酸锂颗粒，其中正极活性物质的一次颗粒具有十二面体 或更高多面体形状，其中不相等于（111）面的晶面彼此相邻，并且平坦的晶面彼此交叉以形成透明的脊，并且一次粒子的平均一次粒径 不小于1μm且不大于20μm。 根据本发明的正极活性物质颗粒的包装性，负载特性和高温稳定性优异。