公开(公告)号：US20140004415A1

公开(公告)日：2014-01-02

申请号：US14004245

申请日：2012-03-16

申请人： Shouichiro Sawa ,  Atsushi Fukui ,  Taizou Sunano

发明人： Shouichiro Sawa ,  Atsushi Fukui ,  Taizou Sunano

IPC分类号： H01M4/36

CPC分类号： H01M4/364 ,  H01M4/131 ,  H01M4/134 ,  H01M4/386 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

摘要： A lithium secondary battery with superior cycle performance is provided. The lithium secondary battery includes a negative electrode including a negative electrode active material layer disposed on a negative electrode current collector and containing negative electrode active material particles, negative electrode conductor particles, and a negative electrode hinder; a positive electrode containing a positive electrode active material; and a non-aqueous electrolyte. The concentration of the negative electrode conductor particles in a surface layer of the negative electrode active material layer facing away from the negative electrode current collector is higher than the concentration of the negative electrode conductor particles in a center of the negative electrode active material layer.

摘要翻译： 提供了具有优异循环性能的锂二次电池。 锂二次电池包括负极，负极包括设置在负极集电体上并具有负极活性物质粒子，负极导体粒子和负极阻碍物的负极活性物质层， 含有正极活性物质的正极; 和非水电解质。 负极活性物质层的背离负极集电体的表面层中的负极导体粒子的浓度高于负极活性物质层的中心的负极导体粒子的浓度。

公开(公告)号：US20130266834A1

公开(公告)日：2013-10-10

申请号：US13993892

申请日：2011-12-07

申请人： Shouichiro Sawa ,  Atsushi Fukui ,  Yasunori Watanabe ,  Taizou Sunano

发明人： Shouichiro Sawa ,  Atsushi Fukui ,  Yasunori Watanabe ,  Taizou Sunano

IPC分类号： H01M10/04

CPC分类号： H01M10/0431 ,  H01M4/134 ,  H01M4/621 ,  H01M10/0422 ,  H01M10/052 ,  H01M10/0587 ,  H01M2004/021 ,  H01M2004/025 ,  H01M2004/027 ,  H01M2004/028 ,  Y02E60/122

摘要： A lithium secondary battery and a method for producing the lithium secondary battery. The lithium secondary battery includes a negative electrode 1 in which negative electrode mixture layers 2 and 3 that contain active material particles containing silicon and/or a silicon alloy and a binder are disposed on the surfaces of a current collector 4. A electrode body is formed by spirally winding, from inside to outside, a laminate body; and in an outer end portion of the negative electrode 1, the negative electrode mixture layers 2 and 3 have tapering portions 2a and 3a whose thicknesses decrease toward ends 2b and 3b of the negative electrode mixture layers 2 and 3; and oozing portions 2d and 3d mainly containing the binder are formed at the tips of the tapering portions 2a and 3a of the negative electrode mixture layers 2 and 3.

摘要翻译： 锂二次电池及其制造方法。 锂二次电池包括负极1，其中在集电体4的表面上设置有负极混合物层2和3，负极混合物层2和3含有含有硅和/或硅合金的活性材料颗粒和粘合剂。电极体形成 通过螺旋卷绕从内到外的层压体; 在负极1的外端部分中，负极合剂层2和3具有朝向负极混合物层2和3的端部2b和3b的厚度减小的锥形部分2a和3a; 并且在负极混合物层2和3的锥形部分2a和3a的尖端处形成主要包含粘结剂的渗出部分2d和3d。

公开(公告)号：US20110217577A1

公开(公告)日：2011-09-08

申请号：US13040707

申请日：2011-03-04

申请人： Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

发明人： Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

IPC分类号： H01M4/02 ,  H01M4/38 ,  H01M2/02

CPC分类号： H01M10/052 ,  H01M10/0431

摘要： A lithium secondary battery comprises an electrode assembly and a non-aqueous electrolyte. The electrode assembly is made by winding a negative electrode, a positive electrode, and a separator interposed between the negative and positive electrodes. The negative electrode contains a negative electrode active material that is alloyed with lithium. The non-aqueous electrolyte is impregnated in the electrode assembly. At least one of the negative and positive electrodes is divided into a plurality of electrode units which are arranged at spaces for each other along the winding direction.

摘要翻译： 锂二次电池包括电极组件和非水电解质。 电极组件通过卷绕负极和正极之间的负极和隔膜来制造。 负极含有与锂合金化的负极活性物质。 非水电解质浸渍在电极组件中。 负电极和正极中的至少一个被分成沿着卷绕方向彼此间隔设置的多个电极单元。

公开(公告)号：US20080241703A1

公开(公告)日：2008-10-02

申请号：US12078052

申请日：2008-03-26

申请人： Hidekazu Yamamoto ,  Yasuo Takano ,  Takanobu Chiga ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

发明人： Hidekazu Yamamoto ,  Yasuo Takano ,  Takanobu Chiga ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

IPC分类号： H01M10/26 ,  H01M4/58

CPC分类号： H01M10/0525 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/621 ,  H01M4/661 ,  H01M4/70 ,  H01M10/0569 ,  H01M10/0587 ,  H01M2004/021 ,  H01M2300/0025

摘要： A nonaqueous electrolyte secondary battery which includes a positive electrode, a negative electrode and a separator stacked and wound in a cylindrical configuration, and which achieves a high energy density and superior cycle performance characteristics.The nonaqueous electrolyte secondary battery includes a positive electrode containing a positive active material, a negative electrode containing a negative active material, a separator interposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte containing a solvent and a solute. Those positive electrode, negative electrode and separator are stacked and wound in a cylindrical configuration. Characteristically, the negative active material comprises a material that stores lithium via alloying with lithium, the solvent in the nonaqueous electrolyte contains a fluorinated cyclic carbonate, and the nonaqueous electrolyte has a viscosity of not higher than 2.5 mPas.

摘要翻译： 一种非水电解质二次电池，其包括正极，负极和层叠并以圆筒形构成的隔板，并且具有高能量密度和优异的循环性能特性。 非水电解质二次电池包括含有正极活性物质的正极，含有负极活性物质的负极，插入正极和负极之间的隔膜，以及含有溶剂和溶质的非水电解质。 这些正极，负极和隔板被堆叠并缠绕成圆柱形构造。 特别地，负极活性物质包括通过与锂合金化锂的材料，非水电解质中的溶剂含有氟化环状碳酸酯，非水电解质的粘度不高于2.5mPa·s。

公开(公告)号：US20060068290A1

公开(公告)日：2006-03-30

申请号：US11231982

申请日：2005-09-22

申请人： Shouichirou Sawa ,  Hiroshi Minami ,  Atsushi Fukui ,  Taizou Sunano ,  Takuya Sunagawa ,  Maruo Kamino ,  Toshio Yanagida

发明人： Shouichirou Sawa ,  Hiroshi Minami ,  Atsushi Fukui ,  Taizou Sunano ,  Takuya Sunagawa ,  Maruo Kamino ,  Toshio Yanagida

IPC分类号： H01M4/52 ,  H01M4/50 ,  H01M4/58

CPC分类号： C01G51/42 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/0404 ,  H01M4/386 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/021

摘要： A lithium secondary battery having high capacity and good charge-discharge cycle performance is provided. The lithium secondary battery includes a negative electrode (2) containing silicon as a negative electrode active material, a positive electrode (1) containing a positive electrode active material, and a non-aqueous electrolyte. The positive electrode active material is a lithium-transition metal composite oxide including a layered structure represented by the chemical formula LiaNixMnyCOzO2, where a, x, y, and z satisfy the expressions: 0≦a≦1.3, x+y+z=1, 0

摘要翻译： 提供具有高容量和良好的充放电循环性能的锂二次电池。 锂二次电池包括含有硅作为负极活性物质的负极（2），含有正极活性物质的正极（1）和非水电解质。 正极活性物质是包含由化学式为Li x Mn x Mn y CO的化学式表示的层状结构的锂 - 过渡金属复合氧化物 其中a，x，y和z满足以下表达式：0 <= a <= 1.3，x + y + z = 1,0

公开(公告)号：US20130022879A1

公开(公告)日：2013-01-24

申请号：US13639396

申请日：2011-04-28

申请人： Hidekazu Yamamoto ,  Kouhei Tuduki ,  Taizou Sunano ,  Maruo Kamino ,  Youichi Ohashi ,  Minoru Kotato

发明人： Hidekazu Yamamoto ,  Kouhei Tuduki ,  Taizou Sunano ,  Maruo Kamino ,  Youichi Ohashi ,  Minoru Kotato

IPC分类号： H01M10/0564

CPC分类号： H01M10/0567 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0034 ,  Y02E60/122

摘要： Provided is a nonaqueous electrolyte secondary battery which, even in the case of using a low-viscosity solvent having a narrow potential window, can increase the electrochemical stability of the nonaqueous electrolyte solution and suppress side reactions of the nonaqueous electrolyte solution during charge and discharge to reduce the degradation of the battery characteristics and has an excellent storage characteristic in high-temperature environments and a nonaqueous electrolyte solution for the nonaqueous electrolyte secondary battery. The nonaqueous electrolyte secondary battery includes: a positive electrode containing a positive-electrode active material; a negative electrode containing a negative-electrode active material; and a nonaqueous electrolyte solution containing a solute dissolved in a nonaqueous solvent, wherein the nonaqueous electrolyte solution further contains benzotrifluoride and a diisocyanate compound and the content of benzotrifluoride is 5% by volume or more in the nonaqueous electrolyte solution except the solute.

摘要翻译： 提供一种非水电解质二次电池，即使在使用具有窄势窗的低粘度溶剂的情况下，也能够提高非水电解液的电化学稳定性，抑制非水电解液在充放电期间的副反应 降低电池特性的劣化，并且在高温环境中具有优异的储存特性和用于非水电解质二次电池的非水电解质溶液。 非水电解质二次电池包括：含有正极活性物质的正极; 含有负极活性物质的负极; 以及含有溶解在非水溶剂中的溶质的非水电解液，其中所述非水电解质溶液还含有苯并三氟化物和二异氰酸酯化合物，并且所述非水电解质溶液中除所述溶质以外，所述三氟甲苯的含量为5体积％以上。

公开(公告)号：US08101295B2

公开(公告)日：2012-01-24

申请号：US12056559

申请日：2008-03-27

申请人： Shouichiro Sawa ,  Taizou Sunano ,  Maruo Kamino

发明人： Shouichiro Sawa ,  Taizou Sunano ,  Maruo Kamino

IPC分类号： H01M6/10 ,  H01M2/02 ,  H01M2/18

CPC分类号： H01M10/0587 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/622 ,  H01M4/625 ,  H01M4/661 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0525 ,  Y02T10/7011

摘要： A lithium secondary battery has a wound electrode assembly (5). The wound electrode assembly (5) has a negative electrode (2) having a negative electrode active material layer containing a negative electrode active material capable of alloying with lithium and having a filling density of 2.0 g/cc or less, a positive electrode (1) having a positive electrode active material layer containing a positive electrode active material made of a transition metal composite oxide, a separator (3) disposed between the positive and negative electrodes and having a penetration resistance of 500 g or greater, and a cylindrical hollow space (14) at a winding axis and in the vicinity thereof, wherein the positive electrode (1), the negative electrode (2), and the separator (3) are spirally wound. A columnar center pin (15) having a diameter of from 75% to 95% of the diameter of the hollow space is disposed in the hollow space.

摘要翻译： 锂二次电池具有卷绕电极组件（5）。 卷绕电极组件（5）具有负极（2），其具有负极活性物质层，负极活性物质层含有与锂合金化的负极活性物质，填充密度为2.0g / cc以下，正极（1 ），其具有含有由过渡金属复合氧化物构成的正极活性物质的正极活性物质层，设置在正极和负极之间并具有500g以上的耐渗透性的隔膜（3）和圆筒状中空空间 （14）在卷绕轴及其附近，其中正极（1），负极（2）和隔板（3）螺旋卷绕。 具有中空空间直径的75％至95％直径的柱状中心销（15）设置在中空空间中。

公开(公告)号：US20110200887A1

公开(公告)日：2011-08-18

申请号：US13029774

申请日：2011-02-17

申请人： Kouhei Tuduki ,  Hidekazu Yamamoto ,  Taizou Sunano ,  Maruo Kamino

发明人： Kouhei Tuduki ,  Hidekazu Yamamoto ,  Taizou Sunano ,  Maruo Kamino

IPC分类号： H01M10/02

CPC分类号： H01M10/0567 ,  H01M4/386 ,  H01M10/052

摘要： A non-aqueous electrolyte secondary battery includes a positive electrode (1), a negative electrode (2) containing a negative electrode active material, a separator 3 interposed between the electrodes (1) and (2), and a non-aqueous electrolyte containing a non-aqueous solvent and a solute dissolved in the solvent. The non-aqueous electrolyte contains a compound represented by the following chemical formula (1): wherein n is an integer of from 2 to 6, each R represents a linear saturated hydrocarbon that may be an unsubstituted or may have a substituted group, and the Rs may be the same or different groups.

摘要翻译： 非水电解质二次电池包括正极（1），含有负极活性物质的负极（2），插入电极（1）和（2）之间的隔膜3和含有 非水溶剂和溶解在溶剂中的溶质。 非水电解质含有下述化学式（1）表示的化合物：其中，n为2〜6的整数，R表示可以为未取代的或可具有取代基的直链状饱和烃， Rs可以是相同或不同的组。

公开(公告)号：US20100330424A1

公开(公告)日：2010-12-30

申请号：US12822696

申请日：2010-06-24

申请人： Kei Kobayashi ,  Yasuo Takano ,  Taizou Sunano ,  Maruo Kamino

发明人： Kei Kobayashi ,  Yasuo Takano ,  Taizou Sunano ,  Maruo Kamino

IPC分类号： H01M4/58 ,  H01M4/02

CPC分类号： H01M4/64 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/38 ,  H01M4/62 ,  H01M4/661

摘要： A negative electrode (2) for a lithium secondary battery having a negative electrode current collector (21) having an arithmetical mean surface roughness Ra of 0.01 μm or greater and a negative electrode active material layer (22) formed on the negative electrode current collector (21). The negative electrode active material layer (22) contains a negative electrode active material (22a) including a material capable of alloying with lithium. A conductive layer (23) including a material not intercalating or deintercalating lithium is formed on the negative electrode active material layer.

摘要翻译： 一种具有负极集电体（21）的锂二次电池用负极（2），其具有0.01μm以上的算术平均表面粗糙度Ra和形成在负极集电体上的负极活性物质层（22） 21）。 负极活性物质层（22）含有能够与锂合金化的材料的负极活性物质（22a）。 在负极活性物质层上形成包含不嵌锂或脱嵌锂的材料的导电层（23）。

公开(公告)号：US09153841B2

公开(公告)日：2015-10-06

申请号：US13639396

申请日：2011-04-28

申请人： Hidekazu Yamamoto ,  Kouhei Tuduki ,  Taizou Sunano ,  Maruo Kamino ,  Youichi Ohashi ,  Minoru Kotato

发明人： Hidekazu Yamamoto ,  Kouhei Tuduki ,  Taizou Sunano ,  Maruo Kamino ,  Youichi Ohashi ,  Minoru Kotato

IPC分类号： H01M6/16 ,  H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/1393 ,  H01M4/133 ,  H01M4/1395 ,  H01M4/134

CPC分类号： H01M10/0567 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0034 ,  Y02E60/122

摘要： Provided is a nonaqueous electrolyte secondary battery which, even in the case of using a low-viscosity solvent having a narrow potential window, can increase the electrochemical stability of the nonaqueous electrolyte solution and suppress side reactions of the nonaqueous electrolyte solution during charge and discharge to reduce the degradation of the battery characteristics and has an excellent storage characteristic in high-temperature environments and a nonaqueous electrolyte solution for the nonaqueous electrolyte secondary battery. The nonaqueous electrolyte secondary battery includes: a positive electrode containing a positive-electrode active material; a negative electrode containing a negative-electrode active material; and a nonaqueous electrolyte solution containing a solute dissolved in a nonaqueous solvent, wherein the nonaqueous electrolyte solution further contains benzotrifluoride and a diisocyanate compound and the content of benzotrifluoride is 5% by volume or more in the nonaqueous electrolyte solution except the solute.

摘要翻译： 提供一种非水电解质二次电池，即使在使用具有窄势窗的低粘度溶剂的情况下，也能够提高非水电解液的电化学稳定性，抑制非水电解液在充放电期间的副反应 降低电池特性的劣化，并且在高温环境中具有优异的储存特性和用于非水电解质二次电池的非水电解质溶液。 非水电解质二次电池包括：含有正极活性物质的正极; 含有负极活性物质的负极; 以及含有溶解在非水溶剂中的溶质的非水电解液，其中所述非水电解质溶液还含有苯并三氟化物和二异氰酸酯化合物，并且所述非水电解质溶液中除所述溶质以外，所述三氟甲苯的含量为5体积％以上。