公开(公告)号：US09159998B2

公开(公告)日：2015-10-13

申请号：US13393621

申请日：2009-09-04

申请人： Hiroki Nagai ,  Satoshi Goto ,  Hidekazu Hiratsuka

发明人： Hiroki Nagai ,  Satoshi Goto ,  Hidekazu Hiratsuka

IPC分类号： H01M4/13 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  C01G53/00

CPC分类号： H01M4/505 ,  C01G53/50 ,  C01P2002/52 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/525 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

摘要： A positive electrode active material provided in the present invention is characterized in that it is substantially formed of a lithium nickel cobalt manganese composite oxide and that a molar content ratio (NiIII/NiII) of bivalent nickel atoms (NiII) and trivalent nickel atoms (NiIII) of nickel atoms constituting the composite oxide is 0.15≦(NiIII/NiII)≦0.95.

摘要翻译： 本发明提供的正极活性物质的特征在于其基本上由锂镍钴锰复合氧化物形成，并且二价镍原子（NiII）和三价镍原子（NiIII）的摩尔含量比（NiIII / NiII） ）构成复合氧化物的镍原子为0.15＆lt;（NiIII / NiII）＆nlE; 0.95。

公开(公告)号：US20120161069A1

公开(公告)日：2012-06-28

申请号：US13393621

申请日：2009-09-04

申请人： Hiroki Nagai ,  Satoshi Goto ,  Hidekazu Hiratsuka

发明人： Hiroki Nagai ,  Satoshi Goto ,  Hidekazu Hiratsuka

IPC分类号： H01M4/525

CPC分类号： H01M4/505 ,  C01G53/50 ,  C01P2002/52 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/525 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

摘要： A positive electrode active material provided in the present invention is characterized in that it is substantially formed of a lithium nickel cobalt manganese composite oxide and that a molar content ratio (NiIII/NiII) of bivalent nickel atoms (NiII) and trivalent nickel atoms (NiIII) of nickel atoms constituting the composite oxide is 0.15≦(NiIII/NiII)≦0.95.

摘要翻译： 本发明提供的正极活性物质的特征在于其基本上由锂镍钴锰复合氧化物形成，并且二价镍原子（NiII）和三价镍原子（NiIII）的摩尔含量比（NiIII / NiII） ）构成复合氧化物的镍原子为0.15＆lt;（NiIII / NiII）＆nlE; 0.95。

公开(公告)号：US20120248388A1

公开(公告)日：2012-10-04

申请号：US13514624

申请日：2009-12-14

申请人： Hiroki Nagai ,  Hidekazu Hiratsuka

发明人： Hiroki Nagai ,  Hidekazu Hiratsuka

IPC分类号： H01B1/08

CPC分类号： H01M4/505 ,  H01M4/525 ,  Y02E60/122 ,  Y02P70/54

摘要： The present invention discloses a method for producing a positive electrode active material for a lithium secondary battery constituted by a lithium-nickel-cobalt-manganese complex oxide with a lamellar structure, the method including: (1) a step of preparing a starting source material for producing the complex oxide including a lithium supply source, a nickel supply source, a cobalt supply source, and a manganese supply source; (2) a step of pre-firing the starting source material by heating at a pre-firing temperature that has been set to a temperature lower than 800° C. and higher than a melting temperature of the lithium supply source; and (3) a step of firing the pre-fired material obtained in the pre-firing step by raising a temperature to a temperature range higher than the pre-firing temperature.

摘要翻译： 本发明公开了一种由具有层状结构的锂镍钴锰复合氧化物构成的锂二次电池用正极活性物质的制造方法，该方法包括：（1）制备起始原料的步骤 用于生产包括锂供应源，镍供应源，钴供应源和锰供应源的复合氧化物; （2）通过在设定为低于800℃且高于锂供应源的熔融温度的预焙烧温度下进行加热来预焙烧起始原料的步骤; 和（3）通过将温度升高到比预烧温度高的温度范围，烧制在预烧制步骤中获得的预烧材料的步骤。

公开(公告)号：US08986570B2

公开(公告)日：2015-03-24

申请号：US13514624

申请日：2009-12-14

申请人： Hiroki Nagai ,  Hidekazu Hiratsuka

发明人： Hiroki Nagai ,  Hidekazu Hiratsuka

IPC分类号： H01M4/88 ,  H01M4/505 ,  H01M4/525

CPC分类号： H01M4/505 ,  H01M4/525 ,  Y02E60/122 ,  Y02P70/54

摘要： The present invention discloses a method for producing a positive electrode active material for a lithium secondary battery constituted by a lithium-nickel-cobalt-manganese complex oxide with a lamellar structure, the method including: (1) a step of preparing a starting source material for producing the complex oxide including a lithium supply source, a nickel supply source, a cobalt supply source, and a manganese supply source; (2) a step of pre-firing the starting source material by heating at a pre-firing temperature that has been set to a temperature lower than 800° C. and higher than a melting temperature of the lithium supply source; and (3) a step of firing the pre-fired material obtained in the pre-firing step by raising a temperature to a temperature range higher than the pre-firing temperature.

摘要翻译： 本发明公开了一种由具有层状结构的锂镍钴锰复合氧化物构成的锂二次电池用正极活性物质的制造方法，该方法包括：（1）制备起始原料的步骤 用于生产包括锂供应源，镍供应源，钴供应源和锰供应源的复合氧化物; （2）通过在设定为低于800℃且高于锂供应源的熔融温度的预焙烧温度下进行加热来预焙烧起始原料的步骤; 和（3）通过将温度升高到比预烧温度高的温度范围，烧制在预烧制步骤中获得的预烧材料的步骤。

公开(公告)号：US08765007B2

公开(公告)日：2014-07-01

申请号：US13521241

申请日：2010-01-15

申请人： Hiroki Nagai ,  Hidekazu Hiratsuka

发明人： Hiroki Nagai ,  Hidekazu Hiratsuka

IPC分类号： H01M4/02 ,  H01M4/13

CPC分类号： H01M4/13 ,  H01M4/139 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2010/4292

摘要： A method of evaluating a positive electrode active material has a density ratio-determining step of determining a ratio of an apparent density Da of the positive electrode active material to a theoretical density Db of the positive electrode active material. For example, when the positive electrode active material contains no closed space in the positive electrode active material, such as closed pores of the positive electrode active material, the ratio (Da/Db) of the apparent density Da of the positive electrode active material to the theoretical density Db of the positive electrode active material will be a value close to 1; however, the more the closed space such as the closed pores exists in the positive electrode active material, the smaller the ratio (Da/Db). Thus, the ratio (Da/Db) can serve as an indicator for measuring the degree of density of the positive electrode active material.

摘要翻译： 正极活性物质的评价方法具有确定正极活性物质的表观密度Da与正极活性物质的理论密度Db的比的密度比判定步骤。 例如，在正极活性物质在正极活性物质的闭孔等正极活性物质中不含有封闭空间的情况下，正极活性物质的表观密度Da的比（Da / Db） 正极活性物质的理论密度Db为接近1的值; 然而，正极活性物质中存在闭孔的封闭空间越多，比率（Da / Db）越小。 因此，比率（Da / Db）可以用作测量正极活性物质的密度的指标。

公开(公告)号：US20130047721A1

公开(公告)日：2013-02-28

申请号：US13521241

申请日：2010-01-15

申请人： Hiroki Nagai ,  Hidekazu Hiratsuka

发明人： Hiroki Nagai ,  Hidekazu Hiratsuka

IPC分类号： G01N9/00

CPC分类号： H01M4/13 ,  H01M4/139 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2010/4292

摘要： A method of evaluating a positive electrode active material has a density ratio-determining step of determining a ratio of an apparent density Da of the positive electrode active material to a theoretical density Db of the positive electrode active material. For example, when the positive electrode active material contains no closed space in the positive electrode active material, such as closed pores of the positive electrode active material, the ratio (Da/Db) of the apparent density Da of the positive electrode active material to the theoretical density Db of the positive electrode active material will be a value close to 1; however, the more the closed space such as the closed pores exists in the positive electrode active material, the smaller the ratio (Da/Db). Thus, the ratio (Da/Db) can serve as an indicator for measuring the degree of density of the positive electrode active material.

摘要翻译： 正极活性物质的评价方法具有确定正极活性物质的表观密度Da与正极活性物质的理论密度Db的比的密度比判定步骤。 例如，在正极活性物质在正极活性物质的闭孔等正极活性物质中不含有封闭空间的情况下，正极活性物质的表观密度Da的比（Da / Db） 正极活性物质的理论密度Db为接近1的值; 然而，正极活性物质中存在闭孔的封闭空间越多，比率（Da / Db）越小。 因此，比率（Da / Db）可以用作测量正极活性物质的密度的指标。

公开(公告)号：US09515312B2

公开(公告)日：2016-12-06

申请号：US14368376

申请日：2012-12-21

申请人： Yoshinari Makimura ,  Tetsuro Kobayashi ,  Hiroki Nagai

发明人： Yoshinari Makimura ,  Tetsuro Kobayashi ,  Hiroki Nagai

IPC分类号： H01M4/00 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  C01G53/00 ,  H01M4/485 ,  H01M4/50 ,  H01M4/52 ,  H01M4/02

CPC分类号： H01M4/131 ,  C01G53/50 ,  C01P2002/22 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2004/03 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122

摘要： A lithium secondary battery (10) includes a positive electrode active material of lithium transition metal oxide which contains at least a nickel element and a manganese element as transition metals and for which, with respect to a diffraction peak A located at a diffraction angle 20 of 17° to 20° and a diffraction peak B located at a diffraction angle 2Θ of 43° to 46° from X-ray diffraction measurements, when the integrated intensity ratio is R1=IA/IB, the peak intensity ratio is RH=HA/HB, and the ratio between the integrated intensity ratio R1 and the peak intensity ratio RH is SF=RH/R1>> the SF satisfies 1.1≦SF≦2.2.

摘要翻译： 锂二次电池（10）包括锂过渡金属氧化物的正极活性物质，其至少包含镍元素和锰元素作为过渡金属，并且对于衍射峰A，位于衍射角20的衍射角 17°〜20°的衍射峰B和衍射角2θ为43°〜46°的X射线衍射测定时的衍射峰B，当积分强度比为R1 = IA / IB时，峰强度比为RH = HA / HB，积分强度比R1与峰值强度比RH之比为SF = RH / R1 >> SF满足1.1≤SS≤2.2。

公开(公告)号：US09263729B2

公开(公告)日：2016-02-16

申请号：US13522758

申请日：2010-01-21

申请人： Hiroki Nagai ,  Masahiro Morita ,  Yukihiro Okada

发明人： Hiroki Nagai ,  Masahiro Morita ,  Yukihiro Okada

IPC分类号： H01M4/13 ,  H01M4/131 ,  H01M4/62 ,  H01M10/052 ,  H01M4/02

CPC分类号： H01M4/13 ,  H01M4/131 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/49108

摘要： A lithium secondary battery of the present invention has a positive electrode is provided with a positive electrode mix layer that includes a positive electrode active material and a conductive material. The positive electrode mix layer has two peaks, large and small, of differential pore volume over a pore size ranging from 0.01 μm to 10 μm in a pore distribution curve measured by a mercury porosimeter. A pore size of the smaller peak B of the differential pore volume is smaller than a pore size of the larger peak A of the differential pore volume.

摘要翻译： 本发明的锂二次电池具有正极，其具有包括正极活性物质和导电性材料的正极混合层。 在通过水银孔率计测量的孔分布曲线中，正电极混合层在0.01μm至10μm的孔径范围内具有大的和小的不同孔体积的峰。 不同孔体积的较小峰B的孔径小于微孔体积的较大峰A的孔径。

公开(公告)号：US09209459B2

公开(公告)日：2015-12-08

申请号：US13879042

申请日：2010-10-15

申请人： Hiroki Nagai ,  Masahiro Morita ,  Takashi Iwao

发明人： Hiroki Nagai ,  Masahiro Morita ,  Takashi Iwao

IPC分类号： H01M4/485 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525

CPC分类号： H01M4/485 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  Y02E60/122

摘要： A secondary battery 100 includes a positive electrode current collector 221 and a positive electrode mixture layer 223 which is coated over the positive electrode current collector 221. The positive electrode mixture layer 223 includes a positive electrode active material 610, an electrically conductive material 620, and a binder 630. In addition, the positive electrode active material 610 has secondary particles 910 formed by an aggregation of a plurality of primary particles of a lithium transition metal oxide, a hollow portion 920 formed in the secondary particle 910, and through holes 930 penetrating the secondary particles 910 so as to connect the hollow portion 920 and the outside. A ratio (Vbc/Va) of an inner volume Vbc of holes formed inside the positive electrode mixture layer 223 to an apparent volume Va of the positive electrode mixture layer 223 satisfies 0.25≦(Vbc/Va). In addition, in a section of the positive electrode mixture layer 223, a ratio (Vb/Vc) of an inner volume Vb of holes B formed inside the positive electrode active material 610 to an inner volume Vc of holes C formed outside the positive electrode active material 610 satisfies 0.05≦(Vb/Vc)≦2.5.

摘要翻译： 二次电池100包括正极集电体221和涂覆在正极集电体221上的正极合剂层223.正极合剂层223包括正极活性物质610，导电材料620和 粘合剂630.另外，正极活性物质610具有通过多次锂过渡金属氧化物的一次粒子，形成在二次粒子910中的中空部920的聚集而形成的二次粒子910和穿透 二次粒子910，以便连接中空部分920和外部。 正极合剂层223内形成的孔的内部体积Vbc与正极合剂层223的表观体积Va的比（Vbc / Va）满足0.25＆lt; nlE;（Vbc / Va）。 另外，在正极合剂层223的截面中，形成在正极活性物质610内的孔B的内部容积Vb与形成在正极外侧的孔C的内部容积Vc的比（Vb / Vc） 活性物质610满足0.05＆nlE;（Vb / Vc）＆nlE; 2.5。

公开(公告)号：US09196891B2

公开(公告)日：2015-11-24

申请号：US13531085

申请日：2012-06-22

申请人： Takenori Tsuchiya ,  Hiroki Nagai ,  Masahide Hikosaka

发明人： Takenori Tsuchiya ,  Hiroki Nagai ,  Masahide Hikosaka

IPC分类号： H01M2/02 ,  H01M2/30 ,  H01M2/26 ,  H01M2/20

CPC分类号： H01M2/30 ,  H01M2/20 ,  H01M2/202 ,  H01M2/26 ,  Y02E60/12 ,  Y10T29/49108

摘要： An electrode is provided with a metal terminal extending from a battery module main body, a bolt which has an expanded section configuring a retaining section at a rear end portion and penetrates the metal terminal upward, and an insulating body which insulates the metal terminal and the battery module case one from the other. The insulating body is provided with a drop preventing section which abuts at least a lower surface of the expanded section of the bolt and prevents the bolt from dropping from the metal terminal.

摘要翻译： 电极设置有从电池模块主体延伸的金属端子，螺栓，该螺栓具有在后端部处构成保持部并且向上穿过金属端子的膨胀部，以及绝缘体，其将金属端子和 电池模块一个从另一个。 绝缘体设置有防止突出部的至少下表面的防滴落部，防止螺栓从金属端子落下。