公开(公告)号：US08283075B2

公开(公告)日：2012-10-09

申请号：US12379700

申请日：2009-02-26

申请人： Hidekazu Yamamoto ,  Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

发明人： Hidekazu Yamamoto ,  Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

IPC分类号： H01M6/16 ,  H01M4/58

CPC分类号： H01M10/0566 ,  H01M4/131 ,  H01M4/364 ,  H01M10/052

摘要： A non-aqueous electrolyte secondary battery has a positive electrode (1), a negative electrode (2), a separator (3) interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution in which a solute is dissolved in a non-aqueous solvent. The negative electrode contains a negative electrode active material capable of alloying with lithium and the non-aqueous solvent of the non-aqueous electrolyte solution contains one ore more fluorinated cyclic carbonates and a carboxylic ester. In addition, the non-aqueous electrolyte solution contains a nitrile compound having a chain saturated hydrocarbon group having two or more carbon atoms.

摘要翻译： 非水电解质二次电池在正极和负极之间具有正极（1），负极（2），隔膜（3）以及溶质溶解的非水电解液 在非水溶剂中。 负极含有能够与锂合金化的负极活性物质，非水电解质溶液的非水溶剂含有一个以上的氟化环状碳酸酯和羧酸酯。 另外，非水电解液含有具有碳原子数为2以上的链饱和烃基的腈化合物。

公开(公告)号：US20090214938A1

公开(公告)日：2009-08-27

申请号：US12379700

申请日：2009-02-26

申请人： Hidekazu Yamamoto ,  Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

发明人： Hidekazu Yamamoto ,  Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

IPC分类号： H01M4/60 ,  H01M6/10

CPC分类号： H01M10/0566 ,  H01M4/131 ,  H01M4/364 ,  H01M10/052

摘要： A non-aqueous electrolyte secondary battery has a positive electrode (1), a negative electrode (2), a separator (3) interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution in which a solute is dissolved in a non-aqueous solvent. The negative electrode contains a negative electrode active material capable of alloying with lithium and the non-aqueous solvent of the non-aqueous electrolyte solution contains one ore more fluorinated cyclic carbonates and a carboxylic ester. In addition, the non-aqueous electrolyte solution contains a nitrile compound having a chain saturated hydrocarbon group having two or more carbon atoms.

摘要翻译： 非水电解质二次电池在正极和负极之间具有正极（1），负极（2），隔膜（3）以及溶质溶解的非水电解液 在非水溶剂中。 负极含有能够与锂合金化的负极活性物质，非水电解质溶液的非水溶剂含有一个以上的氟化环状碳酸酯和羧酸酯。 另外，非水电解液含有具有碳原子数为2以上的链饱和烃基的腈化合物。

公开(公告)号：US20060134517A1

公开(公告)日：2006-06-22

申请号：US11300373

申请日：2005-12-15

申请人： Shouichirou Sawa ,  Atsushi Fukui ,  Takuya Sunagawa ,  Maruo Kamino

发明人： Shouichirou Sawa ,  Atsushi Fukui ,  Takuya Sunagawa ,  Maruo Kamino

IPC分类号： H01M4/58 ,  H01M4/48 ,  H01M10/40 ,  H01M4/62

CPC分类号： H01M4/131 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0567 ,  H01M2004/028

摘要： Charge-discharge cycle performance is improved in a lithium secondary battery utilizing a material containing silicon as a positive electrode active material. A lithium secondary battery includes a negative electrode (2) containing silicon as a negative electrode active material, a positive electrode (1) containing a lithium-transition metal composite oxide, and a non-aqueous electrolyte. Lithium carbonate is added in the positive electrode (1), and carbon dioxide is dissolved in the non-aqueous electrolyte.

摘要翻译： 使用含有硅作为正极活性物质的材料的锂二次电池，充放电循环性能提高。 锂二次电池包括含有硅作为负极活性物质的负极（2），含有锂 - 过渡金属复合氧化物的正极（1）和非水电解质。 在正极（1）中加入碳酸锂，二氧化碳溶解在非水电解液中。

公开(公告)号：US20060003226A1

公开(公告)日：2006-01-05

申请号：US10531047

申请日：2004-06-04

申请人： Shouichirou Sawa ,  Hiroshi Minami ,  Mariko Torimae ,  Atsushi Fukui ,  Yasuyuki Kusumoto ,  Katsunobu Sayama ,  Maruo Kamino

发明人： Shouichirou Sawa ,  Hiroshi Minami ,  Mariko Torimae ,  Atsushi Fukui ,  Yasuyuki Kusumoto ,  Katsunobu Sayama ,  Maruo Kamino

IPC分类号： H01M4/58 ,  H01M10/40 ,  H01M4/66

CPC分类号： H01M10/052 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/386 ,  H01M4/405 ,  H01M10/0567 ,  H01M10/058 ,  H01M2004/027 ,  Y10T29/49108

摘要： A rechargeable lithium battery including a negative electrode made by sintering, on a surface of a conductive metal foil as a current collector, a layer of a mixture of active material particles containing silicon and/or a silicon alloy and a binder, a positive electrode and a nonaqueous electrolyte, characterized in that the nonaqueous electrolyte contains carbon dioxide dissolved therein.

摘要翻译： 一种可再充电锂电池，包括通过烧结制成的负极，作为集电体的导电金属箔的表面，含有硅和/或硅合金和粘合剂的活性物质颗粒的混合物层，正极和 非水电解质，其特征在于，所述非水电解质含有溶解在其中的二氧化碳。

公开(公告)号：US20050123829A1

公开(公告)日：2005-06-09

申请号：US11001192

申请日：2004-12-02

申请人： Atsushi Fukui ,  Hiroshi Minami ,  Shoichiro Sawa ,  Mariko Torimae ,  Yasuyuki Kusumoto ,  Maruo Kamino

发明人： Atsushi Fukui ,  Hiroshi Minami ,  Shoichiro Sawa ,  Mariko Torimae ,  Yasuyuki Kusumoto ,  Maruo Kamino

IPC分类号： H01M4/66 ,  H01M2/02 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/62 ,  H01M4/70 ,  H01M10/04 ,  H01M10/05 ,  H01M10/052 ,  H01M10/0587 ,  H01M4/58

CPC分类号： H01M10/052 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/386 ,  H01M4/525 ,  H01M4/622 ,  H01M4/661 ,  H01M4/70 ,  H01M10/0587 ,  H01M2004/021 ,  Y10T29/49108

摘要： A lithium secondary battery of the present invention comprises a positive electrode formed by disposing a positive-electrode mixture layer containing a positive-electrode active material and a positive-electrode binder, on a surface of a positive-electrode current collector; a negative electrode formed by sintering a negative-electrode mixture layer containing a negative-electrode binder and a negative-electrode active material containing silicon and/or a silicon alloy, disposed on a surface of a negative-electrode current collector; a separator disposed between the positive electrode and the negative electrode; and a nonaqueous electrolyte; wherein an electrode unit obtained by setting the positive electrode and the negative electrode opposed to each other through the separator and rolling them in spirally rolled state is placed in a cylindrical battery container and wherein a curvature radius of the negative-electrode mixture layer opposed to the positive-electrode mixture layer through the separator in the spirally rolled state is 1.5 mm or larger.

摘要翻译： 本发明的锂二次电池包括在正极集电体的表面上设置含有正极活性物质和正极粘合剂的正极合剂层而形成的正极， 通过在负极集电体的表面上烧结含有负极粘合剂的负极混合层和含有硅和/或硅合金的负极活性物质而形成的负极， 设置在所述正极和所述负极之间的隔膜; 和非水电解质; 其特征在于，将通过隔板相对的正极和负极通过螺旋卷绕状态进行轧制而得到的电极单元配置在圆筒状的电池容器中，其中负极混合层的曲率半径与 螺旋状卷取状态的正极混合层通过隔膜的厚度为1.5mm以上。

公开(公告)号：US20090246632A1

公开(公告)日：2009-10-01

申请号：US12385016

申请日：2009-03-27

申请人： Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

发明人： Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

IPC分类号： H01M4/62 ,  H01M4/82

CPC分类号： H01M10/052 ,  H01M4/134 ,  H01M4/621 ,  H01M4/622 ,  H01M4/661 ,  Y02T10/7011 ,  Y10T29/49115

摘要： A lithium secondary battery contains a negative electrode binder containing a polyimide resin having a structure represented by the following chemical formula (1), and the polyimide resin having a molecular weight distribution such that the weight ratio of a polyimide resin having a molecular weight of less than 100,000 and a polyimide resin having a molecular weight from 100,000 to less than 200,000 is from 50:50 to 90:10: where n is an integer equal to or greater than 1, and R is a functional group represented by the following chemical formula (2) or (3):

摘要翻译： 锂二次电池包含含有具有由以下化学式（1）表示的结构的聚酰亚胺树脂的负极粘合剂，聚酰亚胺树脂的分子量分布使得分子量较小的聚酰亚胺树脂的重量比 100,000以上，分子量为100,000〜小于20,000的聚酰亚胺树脂为50:50〜90:10，n为1以上的整数，R为下述化学式所示的官能团 （2）或（3）：

公开(公告)号：US20120129048A1

公开(公告)日：2012-05-24

申请号：US13299700

申请日：2011-11-18

申请人： Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino ,  Yoshinori Yoneda

发明人： Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino ,  Yoshinori Yoneda

IPC分类号： H01M4/62 ,  B05D3/02 ,  H01M4/04 ,  C08G73/10 ,  H01B1/12

CPC分类号： H01B1/122 ,  C08G73/1017 ,  C08G73/1067 ,  C08L79/08 ,  H01M4/1395 ,  H01M4/622

摘要： Provided is a binder capable of realizing a lithium secondary battery that includes a negative electrode including a negative-electrode active material layer containing at least one of silicon and a silicon alloy as a negative-electrode active material and also containing a binder and has an excellent charge-discharge cycle characteristic. The binder for the lithium secondary battery contains a polyimide resin that is formed by imidizing either a tetracarboxylic acid or a tetracarboxylic anhydride and a diamine, the polyimide resin having a hydrolyzable silyl group.

摘要翻译： 提供一种能够实现锂二次电池的粘合剂，其包括负极，该负极包含含有硅和硅合金中的至少一种的负极活性物质层作为负极活性物质，并且还含有极好的 充放电循环特性。 用于锂二次电池的粘合剂包含通过酰亚胺化四羧酸或四羧酸酐和二胺形成的聚酰亚胺树脂，该聚酰亚胺树脂具有可水解的甲硅烷基。

公开(公告)号：US20130101897A1

公开(公告)日：2013-04-25

申请号：US13636811

申请日：2011-03-24

申请人： Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

发明人： Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

IPC分类号： H01M4/62 ,  H01M4/04

CPC分类号： H01M4/622 ,  C08G73/1067 ,  C08G73/1082 ,  C08L79/08 ,  H01M4/04 ,  H01M4/0404 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49115

摘要： Provided is a lithium secondary battery in which negative-electrode active material particles containing silicon and/or a silicon alloy are used and which prevents the occurrence of breakage of a binder itself and peel-off of the binder at the interfaces with the negative-electrode active material and the negative-electrode current collector and has a high energy density and an excellent cycle characteristic. The lithium secondary battery includes: a negative electrode in which a negative-electrode active material layer including negative-electrode active material particles containing silicon and/or a silicon alloy and a binder is formed on a surface of electrically conductive metal foil serving as a negative-electrode current collector; a positive electrode; and a nonaqueous electrolyte, wherein the binder contains a polyimide resin including a crosslinked structure formed by imidization of a hexavalent or higher-valent carboxylic acid or an anhydride thereof with a diamine.

摘要翻译： 提供一种锂二次电池，其中使用含有硅和/或硅合金的负极活性物质颗粒，并且防止粘合剂本身的破裂发生和粘合剂在与负极的界面处的剥离 活性物质和负极集电体，具有高能量密度和优异的循环特性。 锂二次电池包括：在作为负极的导电性金属箔的表面上形成有负极活性物质层的负极，负极活性物质层包含含有硅和/或硅合金的负极活性物质粒子和粘合剂 电极集电器; 正极; 和非水电解质，其中所述粘合剂含有通过将六价或更高价羧酸或其酸酐与二胺酰亚胺化而形成的交联结构的聚酰亚胺树脂。

公开(公告)号：US08211569B2

公开(公告)日：2012-07-03

申请号：US10531047

申请日：2004-06-04

申请人： Shouichirou Sawa ,  Hiroshi Minami ,  Mariko Torimae ,  Atsushi Fukui ,  Yasuyuki Kusumoto ,  Katsunobu Sayama ,  Maruo Kamino

发明人： Shouichirou Sawa ,  Hiroshi Minami ,  Mariko Torimae ,  Atsushi Fukui ,  Yasuyuki Kusumoto ,  Katsunobu Sayama ,  Maruo Kamino

IPC分类号： H01M6/14 ,  H01M4/134 ,  H01M4/1395

CPC分类号： H01M10/052 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/386 ,  H01M4/405 ,  H01M10/0567 ,  H01M10/058 ,  H01M2004/027 ,  Y10T29/49108

摘要： A rechargeable lithium battery including a negative electrode made by sintering, on a surface of a conductive metal foil as a current collector, a layer of a mixture of active material particles containing silicon and/or a silicon alloy and a binder, a positive electrode and a nonaqueous electrolyte, characterized in that the nonaqueous electrolyte contains carbon dioxide dissolved therein.

摘要翻译： 一种可再充电锂电池，包括通过烧结制成的负极，作为集电体的导电金属箔的表面，含有硅和/或硅合金和粘合剂的活性物质颗粒的混合物层，正极和 非水电解质，其特征在于，所述非水电解质含有溶解在其中的二氧化碳。

公开(公告)号：US20100266902A1

公开(公告)日：2010-10-21

申请号：US12742397

申请日：2008-11-07

申请人： Yasuo Takano ,  Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino ,  Tetsuo Nakanishi ,  Koichiro Watanabe

发明人： Yasuo Takano ,  Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino ,  Tetsuo Nakanishi ,  Koichiro Watanabe

IPC分类号： H01M4/58 ,  C01B33/02

CPC分类号： H01M4/134 ,  B82Y30/00 ,  C01B33/027 ,  C01B33/029 ,  C01B33/03 ,  H01M4/1395 ,  H01M4/62 ,  H01M4/621 ,  H01M4/622 ,  H01M4/624 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021

摘要： This invention provides a negative electrode material for a rechargeable battery with a nonaqueous electrolyte, characterized in that the negative electrode material contains polycrystalline silicon particles as an active material, the particle diameter of crystallites of the polycrystalline silicon is not less than 20 nm and not more than 100 nm in terms of a crystallite size determined by the Scherrer method from the full width at half maximum of a diffraction line attributable to Si (111) around 2θ=28.4° in an x-ray diffraction pattern analysis, and the true specific gravity of the silicon particles is 2.300 to 2.320.

摘要翻译： 本发明提供一种用于具有非水电解质的可再充电电池的负极材料，其特征在于，所述负极材料含有多晶硅颗粒作为活性材料，所述多晶硅的微晶粒径不小于20nm，而不是更多 以Scherrer法测定的微晶尺寸为100nm以上，衍射线的衍射线的全半宽度可归因于Si（111）在2θ附近; = x = 28.4°，X射线衍射图谱分析， 硅颗粒的重力为2.300〜2.320。