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公开(公告)号：US08715860B2
公开(公告)日：2014-05-06
申请号：US10568420
申请日：2005-02-14
CPC分类号： H01M4/70 , H01M4/136 , H01M4/5825 , H01M4/625 , H01M4/661 , H01M10/052 , H01M10/44 , Y02T10/7011
摘要： A non-aqueous battery with improved volume energy density and enhanced load characteristics is made available even when using olivine-type lithium phosphate as a positive electrode active material.The non-aqueous electrolyte battery of the present invention is provided with a positive electrode (1) containing lithium iron phosphate as a positive electrode active material, a negative electrode (2), and a non-aqueous electrolyte (4). In the positive electrode (1), a positive electrode active material-containing layer that is made of the positive electrode active material, a conductive agent, and a binder agent is formed on a positive electrode current collector. The positive electrode current collector has a thickness of less than 20 μm and its surface that is in contact with the positive electrode active material-containing layer has a mean surface roughness Ra of greater than 0.026.
摘要翻译： 即使使用橄榄石型磷酸锂作为正极活性物质，也可以获得体积能量密度提高和负荷特性提高的非水电池。 本发明的非水电解质电池设有含有磷酸铁锂作为正极活性物质的正极（1），负极（2）和非水电解质（4）。 在正极（1）中，在正极集电体上形成由正极活性物质，导电剂和粘合剂构成的含正极活性物质的层。 正极集电体的厚度小于20μm，与正极活性物质含有层接触的表面的平均表面粗糙度Ra大于0.026。
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公开(公告)号：US20140017527A1
公开(公告)日：2014-01-16
申请号：US14006896
申请日：2012-04-10
申请人： Denis Yau Wai YU
发明人： Denis Yau Wai YU
IPC分类号： H01M10/42
CPC分类号： H01M10/4235 , H01M2/345 , H01M4/505 , H01M4/525 , H01M10/052 , H01M2200/20
摘要： An object of the invention is to improve the safety of nonaqueous electrolyte secondary batteries in the event of overcharging. The invention is directed to a nonaqueous electrolyte secondary battery including a positive electrode containing a positive electrode active material, a negative electrode, a nonaqueous electrolyte, a separator and a current interrupting element, the positive electrode active material including a first compound represented by the general formula LiCoxM1-xO2 (wherein 0.1≦x≦1 and M is one or more metal elements including at least Ni or Mn) and a second compound generating a gas when the positive electrode potential becomes not less than 4.5 V versus lithium metal, the current interrupting element being a pressure-sensitive current interrupting element.
摘要翻译： 本发明的目的在于提高非充电电池的非水电解质二次电池的安全性。 本发明涉及一种非水电解质二次电池，其包括含有正极活性物质，负极，非水电解质，隔膜和电流中断元件的正极，所述正极活性物质包含由通式 式LiCoxM1-xO2（其中0.1≤x≤1且M是至少包括Ni或Mn的一种或多种金属元素）和当正电极电位相对于锂金属不低于4.5V时产生气体的第二化合物，电流 中断元件是压敏电流中断元件。
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3.发明授权Positive electrode active material including particle comprising crystal structure changing from a layered structure to a spinel structure, method of manufacturing the positive electrode active material, and non-aqueous electrolyte secondary battery using the positive electrode active material 有权包含从层状结构变化为尖晶石结构的晶体结构的粒子的正极活性物质，使用正极活性物质的非水电解质二次电池的制造方法公开(公告)号：US08557440B2
公开(公告)日：2013-10-15
申请号：US12895132
申请日：2010-09-30
CPC分类号： H01M4/131 , H01M4/1391 , H01M4/366 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/052 , H01M10/0566
摘要： A positive electrode active material having a lithium-excess lithium-transition metal composite oxide particle represented by the chemical formula Li1.2Mn0.54Ni0.13Co0.13O2. The lithium-excess lithium-transition metal composite oxide particle has an inner portion (1) having a layered structure and a surface adjacent portion (2) having a crystal structure gradually changing from a layered structure to a spinel structure from the inner portion (1) toward the outermost surface portion (3). The layered structure and the spinel structure have an identical ratio of the amount of Mn and the total amount of Ni and Co.
摘要翻译： 具有化学式Li1.2Mn0.54Ni0.13Co0.13O2表示的锂过量的锂 - 过渡金属复合氧化物粒子的正极活性物质。 锂过量的锂 - 过渡金属复合氧化物颗粒具有层状结构的内部部分（1）和具有从内部（1）的层状结构向尖晶石结构逐渐变化的晶体结构的表面相邻部分（2） ）朝向最外表面部分（3）。 层状结构和尖晶石结构具有相同的Mn量和Ni和Co总量的比例。
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4.发明申请METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY BY USING THE SAME 审中-公开用于非电解电解质二次电池，正极电极活性材料和非电解电解质二次电池制造正极电极活性材料的方法公开(公告)号：US20120077088A1
公开(公告)日：2012-03-29
申请号：US13245370
申请日：2011-09-26
申请人： Kazunori Donoue , Denis Yau Wai Yu
发明人： Kazunori Donoue , Denis Yau Wai Yu
摘要： A method for manufacturing a positive electrode active material for a nonaqueous electrolyte secondary battery including the steps of mixing a lithium source and a tetravalent manganese source and reacting the lithium source and the manganese source at a temperature lower than 600° C. while tetravalent manganese is reduced, so as to produce a lithium manganese compound oxide, wherein the positive electrode active material is formed from the lithium manganese compound oxide where the lithium manganese compound oxide is represented by a general formula LixMnO2 (x≧1) and which has a crystal structure of a space group C2/m.
摘要翻译： 一种非水电解质二次电池用正极活性物质的制造方法，其特征在于，包括以下步骤：将锂源和四价锰源混合，并在低于600℃的温度下使锂源和锰源反应，同时四价锰为 还原，从而制备锂锰复合氧化物，其中正极活性材料由锂锰复合氧化物形成，其中锂锰复合氧化物由通式LixMnO 2（x≥1）表示，并且具有晶体结构 的空间组C2 / m。
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5.发明授权Method of producing active material for lithium secondary battery, method of producing electrode for lithium secondary battery, method of producing lithium secondary battery, and method of monitoring quality of active material for lithium secondary battery 有权锂二次电池用活性物质的制造方法，锂二次电池用电极的制造方法，锂二次电池的制造方法以及锂二次电池的活性物质的监测方法公开(公告)号：US08153302B2
公开(公告)日：2012-04-10
申请号：US12071880
申请日：2008-02-27
申请人： Denis Yau Wai Yu , Kazunori Donoue , Toshikazu Yoshida , Tetsuo Kadohata , Tetsuyuki Murata , Shigeki Matsuta
发明人： Denis Yau Wai Yu , Kazunori Donoue , Toshikazu Yoshida , Tetsuo Kadohata , Tetsuyuki Murata , Shigeki Matsuta
IPC分类号： H01M4/04
CPC分类号： H01M4/04 , C01B25/45 , H01M4/5825 , H01M10/0525 , Y10T29/49108
摘要： A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li3PO4 or Li2CO3, or a substance, other than LiFePO4, in which the valence of Fe is bivalent such as FeSO4, FeO or Fe3(PO4)2 without dissolving Fe of LiFePO4.
摘要翻译： 提供一种生产用于锂二次电池的活性材料的方法，其中提供了有效地除去包含锂过渡金属氧阴离子化合物的锂二次电池的活性材料合成的问题的杂质并实现能量密度的提高 。 通过例如利用pH缓冲溶液清洗包含锂过渡金属氧阴离子化合物的锂二次电池的活性物质，可以仅仅有效地除去Li 3 PO 4或Li 2 CO 3等杂质，或除了LiFePO 4以外的物质 ，其中铁的价数是二价的，如FeSO 4，FeO或Fe 3（PO 4）2，而不溶解LiFePO 4的Fe。
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6.发明申请METHOD OF PRODUCING AN ELECTRODE FOR A LITHIUM SECONDARY BATTERY, AND METHOD OF PRODUCING A LITHIUM SECONDARY BATTERY 审中-公开生产锂二次电池的电极的方法和生产锂二次电池的方法公开(公告)号：US20120079712A1
公开(公告)日：2012-04-05
申请号：US13316259
申请日：2011-12-09
申请人： Denis Yau Wai YU , Kazunori Donoue , Toshikazu Yoshida , Tetsuo Kadohata , Tetsuyuki Murata , Shigeki Matsuta
发明人： Denis Yau Wai YU , Kazunori Donoue , Toshikazu Yoshida , Tetsuo Kadohata , Tetsuyuki Murata , Shigeki Matsuta
CPC分类号： H01M4/04 , C01B25/45 , H01M4/5825 , H01M10/0525 , Y10T29/49108
摘要： A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li3PO4 or Li2CO3, or a substance, other than LiFePO4, in which the valence of Fe is bivalent such as FeSO4, FeO or Fe3(PO4)2 without dissolving Fe of LiFePO4.
摘要翻译： 提供一种生产用于锂二次电池的活性材料的方法，其中提供了有效地除去包含锂过渡金属氧阴离子化合物的锂二次电池的活性材料合成的问题的杂质并实现能量密度的提高 。 通过例如利用pH缓冲溶液清洗包含锂过渡金属氧阴离子化合物的锂二次电池的活性物质，可以仅仅有效地除去Li 3 PO 4或Li 2 CO 3等杂质，或除了LiFePO 4以外的物质 ，其中铁的价数是二价的，如FeSO 4，FeO或Fe 3（PO 4）2，而不溶解LiFePO 4的Fe。
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公开(公告)号：US20100233550A1
公开(公告)日：2010-09-16
申请号：US12724770
申请日：2010-03-16
申请人： Katsunori Yanagida , Denis Yau Wai Yu , Koh Masahara , Daizo Jito , Maruo Kamino , Takeshi Ogasawara
发明人： Katsunori Yanagida , Denis Yau Wai Yu , Koh Masahara , Daizo Jito , Maruo Kamino , Takeshi Ogasawara
IPC分类号： H01M6/16
CPC分类号： H01M4/505 , H01M4/364 , H01M4/366 , H01M4/525 , H01M4/5825 , H01M10/052 , H01M10/0569 , H01M10/446 , H01M2300/0025
摘要： A non-aqueous electrolyte secondary battery has a positive electrode containing a positive electrode active material, a negative electrode, and a non-aqueous electrolyte solution in which an electrolyte is dissolved in a non-aqueous solvent. The positive electrode active material includes a lithium-containing transition metal oxide that releases oxygen during initial charge, and the non-aqueous solvent contains a fluorinated cyclic carbonate in which fluorine atoms are directly bonded to a carbonate ring.
摘要翻译： 非水电解质二次电池具有含有正极活性物质，负极和电解质溶解在非水溶剂中的非水电解液的正极。 正极活性物质包括在初始充电期间释放氧的含锂过渡金属氧化物，并且非水溶剂含有其中氟原子直接键合到碳酸酯环上的氟化环状碳酸酯。
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8.发明申请POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME 审中-公开用于锂二次电池的正极电极活性材料及其制造方法公开(公告)号：US20100112448A1
公开(公告)日：2010-05-06
申请号：US12609858
申请日：2009-10-30
IPC分类号： H01M4/50
CPC分类号： H01M4/131 , H01M4/1391 , H01M4/46 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/021
摘要： A positive electrode active material includes a layered lithium-manganese oxide represented by the general formula Li2-xMn1-yO3-p, where 0≦x≦2/3, 0≦y≦1/3, and 0≦p≦1, the lithium-manganese oxide having a full width half maximum of a peak of the (001) crystal plane, as determined by an X-ray diffraction analysis, of 0.22° or greater, and an average particle size of 130 nm or less.
摘要翻译： 正极活性物质包括由通式Li2-xMn1-yO3-p表示的层状锂锰氧化物，其中0＆nlE; x＆lt; lE; 2 / 3,0＆nlE; y＆nlE; 1/3，0＆nlE; p＆nlE; 1， 通过X射线衍射分析确定的（001）晶面的峰的全宽度半峰值为0.22°以上，平均粒径为130nm以下的锂锰氧化物。
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公开(公告)号：US20080286655A1
公开(公告)日：2008-11-20
申请号：US10568420
申请日：2005-02-14
IPC分类号： H01M4/58
CPC分类号： H01M4/70 , H01M4/136 , H01M4/5825 , H01M4/625 , H01M4/661 , H01M10/052 , H01M10/44 , Y02T10/7011
摘要： A non-aqueous battery with improved volume energy density and enhanced load characteristics is made available even when using olivine-type lithium phosphate as a positive electrode active material.The non-aqueous electrolyte battery of the present invention is provided with a positive electrode (1) containing lithium iron phosphate as a positive electrode active material, a negative electrode (2), and a non-aqueous electrolyte (4). In the positive electrode (1), a positive electrode active material-containing layer that is made of the positive electrode active material, a conductive agent, and a binder agent is formed on a positive electrode current collector. The positive electrode current collector has a thickness of less than 20 μm and its surface that is in contact with the positive electrode active material-containing layer has a mean surface roughness Ra of greater than 0.026.
摘要翻译： 即使使用橄榄石型磷酸锂作为正极活性物质，也可以获得体积能量密度提高和负荷特性提高的非水电池。 本发明的非水电解质电池设有含有磷酸铁锂作为正极活性物质的正极（1），负极（2）和非水电解质（4）。 在正极（1）中，在正极集电体上形成由正极活性物质，导电剂和粘合剂构成的含正极活性物质的层。 正极集电体的厚度小于20μm，与正极活性物质含有层接触的表面的平均表面粗糙度Ra大于0.026。
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10.发明申请Method of producing active material for lithium secondary battery, method of producing electrode for lithium secondary battery, method of producing lithium secondary battery, and method of monitoring quality of active material for lithium secondary battery 有权锂二次电池用活性物质的制造方法，锂二次电池用电极的制造方法，锂二次电池的制造方法以及锂二次电池的活性物质的监测方法公开(公告)号：US20080222881A1
公开(公告)日：2008-09-18
申请号：US12071880
申请日：2008-02-27
申请人： Denis Yau Wai Yu , Kazunori Donoue , Toshikazu Yoshida , Tetsuo Kadohata , Tetsuyuki Murata , Shigeki Matsuta
发明人： Denis Yau Wai Yu , Kazunori Donoue , Toshikazu Yoshida , Tetsuo Kadohata , Tetsuyuki Murata , Shigeki Matsuta
IPC分类号： H01M10/38 , C01D15/00 , C01B25/30 , G01N23/20 , G01N33/00 , G01J3/30 , H01J49/00 , C01G49/00
CPC分类号： H01M4/04 , C01B25/45 , H01M4/5825 , H01M10/0525 , Y10T29/49108
摘要： A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li3PO4 or Li2CO3, or a substance, other than LiFePO4, in which the valence of Fe is bivalent such as FeSO4, FeO or Fe3(PO4)2 without dissolving Fe of LiFePO4.
摘要翻译： 提供一种生产用于锂二次电池的活性材料的方法，其中提供了有效地除去包含锂过渡金属氧阴离子化合物的锂二次电池的活性材料合成的问题的杂质并实现能量密度的提高 。 通过例如利用pH缓冲溶液清洗包含锂过渡金属氧阴离子化合物的锂二次电池的活性材料，可以仅仅有效地除去诸如Li 3 PO 3的杂质， 或者其中Fe的化合价为Fe 3+ 3以下的物质，或者LiFePO 4以外的物质，其中Fe的价数为 二价如FeSO 4，FeO或Fe 3（PO 4）2，而不溶解LiFePO的Fe 4 。
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