公开(公告)号：US08435672B2

公开(公告)日：2013-05-07

申请号：US11785622

申请日：2007-04-19

申请人： Yutaka Bannai ,  Tatsuji Numata ,  Ryuichi Kasahara

发明人： Yutaka Bannai ,  Tatsuji Numata ,  Ryuichi Kasahara

IPC分类号： H01M10/0525 ,  H01M4/133

CPC分类号： H01M4/133 ,  H01M2/0222 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  Y02T10/7011

摘要： The invention provides a lithium ion secondary battery comprising a positive electrode, a negative electrode and an electrolysis solution containing an aprotic solvent having an electrolyte dissolved in it, wherein the negative electrodes uses an amorphous carbon material as a negative electrode active material. The amorphous carbon material has (A) an average particle diameter (median size) of 7 μm to 20 μm inclusive as measured by a laser diffraction scattering method and (B) a particle size distribution as measured by a laser diffraction scattering method, in which distribution the ratio of particles of less than 3 μm in diameter is 1% by mass to 10% mass inclusive, and is free of an electrical conducting material.

摘要翻译： 本发明提供一种锂离子二次电池，其包含正极，负极和含有溶解有电解质的非质子溶剂的电解液，其中所述负极使用无定形碳材料作为负极活性物质。 无定形碳材料通过激光衍射散射法测定的（A）平均粒径（中值粒径）为7μm〜20μm，其中，（B）通过激光衍射散射法测定的粒度分布，其中 分布直径小于3μm的颗粒的比例为1质量％至10质量％，并且不含导电材料。

公开(公告)号：US20110244328A1

公开(公告)日：2011-10-06

申请号：US13132549

申请日：2009-12-17

申请人： Jiro Iriyama ,  Ryuichi Kasahara ,  Tetsuya Kajita ,  Tatsuji Numata

发明人： Jiro Iriyama ,  Ryuichi Kasahara ,  Tetsuya Kajita ,  Tatsuji Numata

IPC分类号： H01M4/134 ,  H01M4/485 ,  H01M4/1395 ,  H01M4/1391

CPC分类号： H01M4/386 ,  H01M4/0461 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/483 ,  H01M10/052 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/49108 ,  Y10T29/49115

摘要： There is provided a negative electrode for a nonaqueous electrolyte secondary battery in which when a battery is formed, the energy density is high, and moreover, the decrease in charge and discharge capacity is small even if charge and discharge are repeated. By using silicon oxide particles having a particle diameter in a particular range as a starting raw material, and heating these particles in the range of 850° C. to 1050° C., Si microcrystals are deposited on the surfaces of the particles. Then, by performing doping of Li, a structure comprising a plurality of protrusions having height and cross-sectional area in a particular range is formed on the surfaces. The average value of the height of the above protrusions is 2% to 19% of the average particle diameter of the above lithium-containing silicon oxide particles. By using the lithium-containing silicon oxide particles obtained by the above means as a negative electrode active material, a negative electrode for a nonaqueous electrolyte secondary battery is fabricated.

摘要翻译： 提供了一种非水电解质二次电池的负极，其中当形成电池时，能量密度高，此外，即使重复进行充放电，充电和放电容量的降低也很小。 通过使用具有特定范围的粒径的氧化硅粒子作为起始原料，并将这些粒子加热到850℃〜1050℃的范围内，在微粒的表面上淀积Si微晶。 然后，通过进行Li的掺杂，在表面上形成包括具有特定范围的高度和横截面积的多个突起的结构。 上述突起的高度的平均值为上述含锂二氧化硅粒子的平均粒径的2〜19％。 通过使用通过上述方法获得的含锂氧化硅颗粒作为负极活性材料，制造了非水电解质二次电池用负极。

公开(公告)号：US20120321962A1

公开(公告)日：2012-12-20

申请号：US13579856

申请日：2011-02-18

申请人： Tetsuya Kajita ,  Yasutaka Kono ,  Ryuichi Kasahara ,  Jiro Iriyama ,  Tatsuji Numata

发明人： Tetsuya Kajita ,  Yasutaka Kono ,  Ryuichi Kasahara ,  Jiro Iriyama ,  Tatsuji Numata

IPC分类号： H01M10/056 ,  H01M10/04

CPC分类号： H01M4/134 ,  H01M4/0445 ,  H01M4/1395 ,  H01M4/362 ,  H01M4/366 ,  H01M4/386 ,  H01M4/483 ,  H01M4/622 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0565 ,  H01M2300/0085 ,  Y10T29/4911

摘要： There is provided a polymer secondary battery using silicon and silicon oxide as a negative electrode active material that shows a high capacity retention rate also when a charge and discharge cycle is repeated. A polymer secondary battery including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a polymer-containing gel electrolyte, wherein the negative electrode includes silicon and silicon oxide as a negative electrode active material, and the polymer-containing gel electrolyte is present in voids formed by fine division of particles of the negative electrode active material.

摘要翻译： 提供了使用硅和氧化硅作为负极活性材料的聚合物二次电池，当重复充电和放电循环时也显示出高的容量保持率。 一种聚合物二次电池，包括正极，负极，夹在正极和负极之间的隔膜和含聚合物的凝胶电解质，其中负极包括硅和氧化硅作为负极活性材料，以及 含有聚合物的凝胶电解质存在于由负极活性物质的微粒分割形成的空隙中。

公开(公告)号：US20070248885A1

公开(公告)日：2007-10-25

申请号：US11785622

申请日：2007-04-19

申请人： Yutaka Bannai ,  Tatsuji Numata ,  Ryuichi Kasahara

发明人： Yutaka Bannai ,  Tatsuji Numata ,  Ryuichi Kasahara

IPC分类号： H01M4/58 ,  H01M2/08

CPC分类号： H01M4/133 ,  H01M2/0222 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  Y02T10/7011

摘要： The invention provides a lithium ion secondary battery comprising a positive electrode, a negative electrode and an electrolysis solution containing an aprotic solvent having an electrolyte dissolved in it, wherein the negative electrodes uses an amorphous carbon material as a negative electrode active material. The amorphous carbon material has (A) an average particle diameter (median size of 7 μm to 20 μm inclusive as measured by a laser diffraction scattering method and (B) a particle size distribution as measured by a laser diffraction scattering method, in which distribution the ratio of particles of less than 3 μm in diameter is 1% by mass to 10% mass inclusive, and is free of an electrical conducting material.

摘要翻译： 本发明提供一种锂离子二次电池，其包含正极，负极和含有溶解有电解质的非质子溶剂的电解液，其中所述负极使用无定形碳材料作为负极活性物质。 无定形碳材料具有（A）平均粒径（中值粒径为7μm〜20μm，包括通过激光衍射散射法测定的粒径，（B）通过激光衍射散射法测定的粒度分布，其中分布 直径小于3μm的颗粒的比例为1质量％至10质量％，并且不含导电材料。

公开(公告)号：US20060019166A1

公开(公告)日：2006-01-26

申请号：US11237163

申请日：2005-09-28

申请人： Tatsuji Numata ,  Yoshitada Tomioka

发明人： Tatsuji Numata ,  Yoshitada Tomioka

IPC分类号： H01M4/50 ,  C01G45/12

CPC分类号： H01M4/505 ,  C01G45/1242 ,  C01G53/50 ,  C01P2006/40 ,  C01P2006/62 ,  C01P2006/63 ,  C01P2006/64 ,  H01M4/131 ,  H01M4/525 ,  H01M2004/021

摘要： A positive electrode active material containing lithium manganate having a spinel structure is used, wherein the value of a* of the L*a*b* color specification system is made to satisfy the requirement: −3.2≦a*≦−1.4. Or, the value of a* is made to satisfy the requirement: −5.8≦a*≦−4.2. Or, the value of L* is made to satisfy the requirement: 24≦L*≦27.

摘要翻译： 使用含有尖晶石结构的锰酸锂的正极活性物质，其中使L * a * b *颜色指标体系的a *的值满足以下要求：-3.2 <= a * <= - 1.4。 或者，a *的值满足以下要求：-5.8 <= a * <= - 4.2。 或者，使L *的值满足要求：24 <= L * <= 27。

公开(公告)号：US20130101899A1

公开(公告)日：2013-04-25

申请号：US13806020

申请日：2011-06-06

申请人： Tetsuya Kajita ,  Hiroo Takahashi ,  Ryuichi Kasahara ,  Jiro Iriyama ,  Tatsuji Numata

发明人： Tetsuya Kajita ,  Hiroo Takahashi ,  Ryuichi Kasahara ,  Jiro Iriyama ,  Tatsuji Numata

IPC分类号： H01M4/485 ,  H01M10/04 ,  H01M4/525

CPC分类号： H01M4/485 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/525 ,  H01M10/04 ,  Y10T29/49108

摘要： There is provided a nonaqueous electrolyte secondary battery having high capacity in which the reduction in the capacity of the battery due to the irreversible capacity in the first charge and discharge is suppressed using a high capacity positive electrode. The nonaqueous electrolyte secondary battery according to the exemplary embodiment includes a positive electrode and a negative electrode including at least one negative electrode active material selected from the group consisting of Si, a Si oxide and carbon, wherein the positive electrode includes a positive electrode active material including an oxide capable of absorbing and releasing lithium and a transition metal oxide, the transition metal oxide being represented by Li2MO2 (wherein M is at least one of Cu and Ni) and including a square-planar coordination MO4 structure, the square-planar coordination MO4 structure forming a one-dimensional chain which shares an edge formed by two opposing oxygen atoms, wherein the relation Z≦Y is satisfied provided that Y represents the first charge capacity of the negative electrode, and Z represents the first charge capacity of the positive electrode.

摘要翻译： 提供了一种高容量的非水电解质二次电池，其中使用高容量正极抑制了由于第一次充放电中的不可逆容量引起的电池容量的降低。 本实施方式的非水电解质二次电池包括正极和负极，所述正极和负极具有选自由Si，Si氧化物和碳组成的组中的至少一种负极活性物质，其中所述正极包含正极活性物质 包括能够吸收和释放锂的氧化物和过渡金属氧化物，所述过渡金属氧化物由Li2MO2（其中M是Cu和Ni中的至少一种）表示，并且包括正方形协调MO4结构，所述正方形配位 形成共享由两个相对的氧原子形成的边缘的一维链的MO4结构，其中满足关系Z @ Y，其中Y表示负极的第一充电容量，Z表示正极的第一充电容量 电极。

公开(公告)号：US20110274966A1

公开(公告)日：2011-11-10

申请号：US13145055

申请日：2010-01-19

申请人： Jiro Iriyama ,  Tatsuji Numata ,  Ryuichi Kasahara ,  Tetsuya Kajita

发明人： Jiro Iriyama ,  Tatsuji Numata ,  Ryuichi Kasahara ,  Tetsuya Kajita

IPC分类号： H01M10/05 ,  H01M2/08 ,  H01M2/02

CPC分类号： H01M4/485 ,  H01M4/131 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/058 ,  H01M2300/0082 ,  Y02T10/7011

摘要： An exemplary embodiment of the invention provides a nonaqueous electrolytic solution secondary battery in which capacity deterioration associated with a charge/discharge cycle at a high temperature (45° C. or higher) can be prevented. An exemplary embodiment of the invention is a nonaqueous electrolytic solution secondary battery, comprising an electrode element in which a cathode and an anode are stacked, a nonaqueous electrolytic solution which contains at least one of carbonate solvent, and a gel in an outer packaging body; wherein the anode comprises a silicon oxide represented by SiOx (0

摘要翻译： 本发明的一个示例性实施方案提供了一种非水电解液二次电池，其中可以防止与高温（45℃或更高）的充放电循环相关的容量劣化。 本发明的一个示例性实施方案是一种非水电解液二次电池，包括其中堆叠阴极和阳极的电极元件，在外包装体中含有至少一种碳酸酯溶剂和凝胶的非水电解液; 其中所述阳极包括由SiO x（0

公开(公告)号：US06686092B2

公开(公告)日：2004-02-03

申请号：US09735357

申请日：2000-12-12

申请人： Hiroshi Yageta ,  Tatsuji Numata ,  Chika Kanbe ,  Akira Kobayashi ,  Masato Shirakata ,  Masatomo Yonezawa

发明人： Hiroshi Yageta ,  Tatsuji Numata ,  Chika Kanbe ,  Akira Kobayashi ,  Masato Shirakata ,  Masatomo Yonezawa

IPC分类号： H01M450

CPC分类号： H01M10/052 ,  H01M2/0207 ,  H01M2/0287 ,  H01M4/131 ,  H01M4/364 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/4235 ,  H01M10/52

摘要： A secondary battery including an electricity generating element, which includes at least a positive electrode implemented by a lithium-manganese compound oxide, a negative electrode, an electrolyte and a separator, and films encasing the electricity generating element is disclosed. The secondary battery further includes a composition causing the electrolyte to react with water to thereby produce hydrogen ions, and a hydrogen ion uptaking agent so positioned as to contact the electrolyte existing in the battery. The battery is desirable in charge-discharge cycle characteristic, storage characteristic, and safety. In addition, the battery swells little despite a repeated charge-discharge cycle or storage.

摘要翻译： 公开了一种包括发电元件的二次电池，其至少包括由锂锰复合氧化物实现的正极，负极，电解质和隔板，以及包围发电元件的膜。 二次电池还包括使电解质与水反应从而产生氢离子的组合物，以及定位成接触存在于电池中的电解质的氢离子吸收剂。 充电 - 放电循环特性，储存特性和安全性都要求电池。 此外，尽管反复充电 - 放电循环或存储，电池几乎没有膨胀。