公开(公告)号：US09413010B2

公开(公告)日：2016-08-09

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 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  C08L79/08 ,  C08G73/10

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：US08609279B2

公开(公告)日：2013-12-17

申请号：US10531045

申请日：2004-06-03

申请人： Daizo Jito ,  Noriyuki Tamura ,  Nobuhiro Sakitani ,  Hiroshi Minami ,  Hiromasa Yagi ,  Maruo Kamino ,  Katsunobu Sayama ,  Yoshio Kato ,  Shigeki Matsuta

发明人： Daizo Jito ,  Noriyuki Tamura ,  Nobuhiro Sakitani ,  Hiroshi Minami ,  Hiromasa Yagi ,  Maruo Kamino ,  Katsunobu Sayama ,  Yoshio Kato ,  Shigeki Matsuta

IPC分类号： H01M4/38 ,  H01M4/66 ,  H01M10/40

CPC分类号： H01M10/052 ,  H01M4/134 ,  H01M4/386 ,  H01M4/405 ,  H01M10/0565 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585 ,  H01M10/4235 ,  H01M2300/0017 ,  Y10T29/49115

摘要： A rechargeable lithium battery including a negative electrode made by depositing a noncrystalline thin film composed entirely or mainly of silicon on a current collector, a positive electrode and a nonaqueous electrolyte, characterized in that said nonaqueous electrolyte contains carbon dioxide dissolved therein.

摘要翻译： 一种可再充电锂电池，其包括通过在集电体上沉积完全或主要由硅构成的非晶薄膜而制成的负极，正极和非水电解质，其特征在于，所述非水电解质含有溶解于其中的二氧化碳。

公开(公告)号：US08557413B2

公开(公告)日：2013-10-15

申请号：US10807378

申请日：2004-03-24

申请人： Noriyuki Tamura ,  Maruo Kamino ,  Shin Fujitani

发明人： Noriyuki Tamura ,  Maruo Kamino ,  Shin Fujitani

IPC分类号： H01M10/44 ,  H01M4/13 ,  H01M4/66

CPC分类号： H01M4/661 ,  H01M4/134 ,  H01M4/386 ,  H01M4/405 ,  H01M10/052 ,  H01M10/42 ,  H01M10/44

摘要： A method of charging and discharging a lithium secondary battery in which a negative electrode comprises an active material including silicon provided on a current collector which is a metal which does not form an alloy with lithium. The method is characterized in that the lithium secondary battery is charged and discharged within a range of state of charge (SOC) at which no peak corresponding to a compound of lithium and silicon is observed in an X-ray diffraction pattern during charging using CuKα-radiation as the X-ray source.

摘要翻译： 一种锂二次电池的充电和放电方法，其中负极包括设置在不与锂形成合金的金属的集电器上的包含硅的活性材料。 该方法的特征在于，在充电期间，在使用CuKalpha-晶体管的充电期间，在X射线衍射图中观察到与锂和硅的化合物不相关的峰值的充电状态（SOC）的范围内对锂二次电池进行充放电， 辐射作为X射线源。

公开(公告)号：US08349491B2

公开(公告)日：2013-01-08

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

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):

公开(公告)号：US20090087731A1

公开(公告)日：2009-04-02

申请号：US12232917

申请日：2008-09-25

申请人： Atsushi Fukui ,  Maruo Kamino

发明人： Atsushi Fukui ,  Maruo Kamino

IPC分类号： H01M2/02

CPC分类号： H01M10/0525 ,  H01M2/0217 ,  H01M4/131 ,  H01M4/134 ,  H01M4/624 ,  H01M10/0569 ,  H01M10/0587 ,  H01M2004/021

摘要： A lithium secondary battery includes: a positive electrode having a positive electrode active material layer disposed on a positive electrode current collector, the positive electrode active material layer containing a positive electrode binder and a positive electrode active material containing a layered lithium-transition metal composite oxide; a negative electrode having a negative electrode current collector and a negative electrode active material layer disposed on the negative electrode current collector, the negative electrode active material layer containing a negative electrode binder and a negative electrode active material containing particles of silicon and/or a silicon alloy; and a non-aqueous electrolyte. Al2O3 particles are firmly adhered to a surface of the lithium-transition metal composite oxide so that a BET specific surface area of the positive electrode active material after the adherence of the Al2O3 particles is from 1.5 times to 8 times greater than that before the adherence of the Al2O3 particles

摘要翻译： 锂二次电池包括：具有设置在正极集电体上的正极活性物质层的正极，包含正极粘合剂的正极活性物质层和含有层状锂过渡金属复合氧化物的正极活性物质 ; 具有负极集电体和设置在负极集电体上的负极活性物质层的负极，含有负极活性物质的负极活性物质层和含有硅和/或硅的粒子的负极活性物质 合金; 和非水电解质。 Al 2 O 3颗粒牢固地粘附到锂 - 过渡金属复合氧化物的表面上，使得在Al 2 O 3颗粒粘附之后的正极活性材料的BET比表面积比粘附前的比例大1.5倍至8倍 Al2O3颗粒

公开(公告)号：US20080241647A1

公开(公告)日：2008-10-02

申请号：US12056661

申请日：2008-03-27

申请人： Atsushi FUKUI ,  Hidekazu YAMAMOTO ,  Yasuo TAKANO ,  Shouichirou SAWA ,  Taizou SUNANO ,  Maruo KAMINO

发明人： Atsushi FUKUI ,  Hidekazu YAMAMOTO ,  Yasuo TAKANO ,  Shouichirou SAWA ,  Taizou SUNANO ,  Maruo KAMINO

IPC分类号： H01M4/50 ,  H01M4/52 ,  H01M4/38 ,  H01M10/36 ,  H01M10/38

CPC分类号： H01M10/052 ,  H01M2/1653 ,  H01M4/364 ,  H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/622 ,  H01M4/625 ,  H01M2004/021 ,  H01M2010/4292 ,  Y10T29/49115

摘要： A cylindrical lithium secondary battery includes a positive electrode (1) having a positive electrode mixture layer disposed on a surface of a positive electrode current collector made of a conductive metal foil and containing a positive electrode active material, and a negative electrode (2) having a negative electrode mixture layer disposed on a surface of a negative electrode current collector made of a conductive metal foil and having a negative electrode active material containing silicon particles and/or silicon alloy particles. The amount of the positive electrode active material is 50 mg or less per 1 cm2 of the positive electrode, the average particle size of the silicon particles and/or silicon alloy particles is from 5 μm to 15 μm, and the theoretical electrical capacity ratio of the negative electrode to the positive electrode is 1.2 or greater.

摘要翻译： 圆筒形锂二次电池包括正极（1），其具有设置在由导电金属箔制成并包含正极活性物质的正极集电体的表面上的正极合剂层，以及负极（2），其具有 设置在由导电金属箔制成的负极集电体的表面上并具有含有硅颗粒和/或硅合金颗粒的负极活性物质的负极合剂层。 正极活性物质的量相对于正极的每1cm 2为50mg以下，硅粒子和/或硅合金粒子的平均粒径为5μm〜15μm ，负极与正极的理论电容比为1.2以上。

公开(公告)号：US07160646B2

公开(公告)日：2007-01-09

申请号：US10398934

申请日：2002-03-04

申请人： Ryuji Ohshita ,  Taeko Ota ,  Maruo Kamino ,  Hisaki Tarui ,  Masahisa Fujimoto ,  Shin Fujitani ,  Katsunobu Sayama

发明人： Ryuji Ohshita ,  Taeko Ota ,  Maruo Kamino ,  Hisaki Tarui ,  Masahisa Fujimoto ,  Shin Fujitani ,  Katsunobu Sayama

IPC分类号： H01M4/58 ,  H01M4/66

CPC分类号： H01M4/364 ,  H01M4/0404 ,  H01M4/38 ,  H01M4/386 ,  H01M4/58 ,  H01M4/661 ,  H01M10/052 ,  H01M2004/027

摘要： An electrode for lithium secondary battery having a current collector and, deposited thereon, a thin film comprising silicon as a main component, characterized in that the thin film comprising silicon contains at least one of the elements belonging to the groups IIIa, Iva, Va, VIa, VIIa, VIII, Ib and IIb in the fourth, fifth and sixth periods of the Periodic Table (exclusive of copper (Cu)) at least in the surface portion thereof.

摘要翻译： 1.一种锂二次电池用电极，其具有集电体，在其上沉积包含硅作为主要成分的薄膜，其特征在于，所述包含硅的薄膜含有属于IIIa，Iva，Va， VIa，VIIa，VIII，Ib和IIb，其表面部分至少在周期表的第四，第五和第六周期（不包括铜（Cu））。

公开(公告)号：US20050100790A1

公开(公告)日：2005-05-12

申请号：US10451846

申请日：2002-01-17

申请人： Taeko Ota ,  Hiroyuki Fujimoto ,  Ryuji Ohshita ,  Maruo Kamino

发明人： Taeko Ota ,  Hiroyuki Fujimoto ,  Ryuji Ohshita ,  Maruo Kamino

IPC分类号： H01M10/05 ,  H01M4/134 ,  H01M4/38 ,  H01M4/64 ,  H01M4/66 ,  H01M4/70 ,  H01M6/16 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/40

CPC分类号： H01M4/13 ,  H01M4/0402 ,  H01M4/0404 ,  H01M4/0419 ,  H01M4/0421 ,  H01M4/0426 ,  H01M4/0428 ,  H01M4/0483 ,  H01M4/131 ,  H01M4/139 ,  H01M4/386 ,  H01M4/64 ,  H01M4/66 ,  H01M4/661 ,  H01M4/669 ,  H01M10/052 ,  H01M10/0569 ,  H01M2004/025 ,  H01M2300/0037 ,  H01M2300/004

摘要： A rechargeable lithium battery including a positive electrode, a negative electrode and a nonaqueous electrolyte, said positive or negative electrode being an electrode which has, on a current collector, a thin film of active material that stores and releases lithium, the thin film of active material being divided into columns by gaps formed therein in a manner to extend in its thickness direction, and the columnar portions being at their bottoms adhered to the current collector, the rechargeable lithium battery being characterized in that the nonaqueous electrolyte includes a mixed solvent consisting of two or more different solvents and containing at least ethylene carbonate and/or vinylene carbonate as its constituent.

摘要翻译： 一种包括正极，负极和非水电解质的可再充电锂电池，所述正极或负极是在集电体上具有储存和释放锂的活性材料薄膜的电极，所述活性薄膜 材料通过在其厚度方向上延伸的方式被形成在其中的间隙分成列，并且柱状部分在其底部附着在集电器上，可再充电锂电池的特征在于非水电解质包括由 两种或更多种不同的溶剂，并且至少含有碳酸亚乙酯和/或碳酸亚乙烯酯作为其成分。

公开(公告)号：US06887623B2

公开(公告)日：2005-05-03

申请号：US10118309

申请日：2002-04-09

申请人： Hiroyuki Fujimoto ,  Hiroko Sanda ,  Takashi Okamoto ,  Toyoki Fujihara ,  Masahiro Iyori ,  Maruo Kamino ,  Shigeki Matsuta

发明人： Hiroyuki Fujimoto ,  Hiroko Sanda ,  Takashi Okamoto ,  Toyoki Fujihara ,  Masahiro Iyori ,  Maruo Kamino ,  Shigeki Matsuta

IPC分类号： H01M4/13 ,  H01M4/40 ,  H01M4/62 ,  H01M4/66 ,  H01M4/70 ,  H01M4/80 ,  H01M10/052

CPC分类号： H01M4/13 ,  H01M4/382 ,  H01M4/386 ,  H01M4/40 ,  H01M4/661 ,  H01M10/052

摘要： An electrode for a rechargeable lithium battery which includes a current collector and a thin film composed of active material that stores and releases lithium and deposited on the current collector, the electrode being characterized in that the current collector has irregularities on its surface and the thin film has spaces extending in a thickness direction of the thin film and configured to increase their width dimensions toward valleys of the irregularities on the current collector surface.

摘要翻译： 一种用于可再充电锂电池的电极，其包括集电器和由存储和释放锂并沉积在集电器上的活性材料构成的薄膜，该电极的特征在于集电器在其表面上具有不规则性，并且薄膜 具有在薄膜的厚度方向上延伸的空间，并将其宽度尺寸增加到集电体表面上的凹凸的谷部。

公开(公告)号：US06746801B2

公开(公告)日：2004-06-08

申请号：US09987167

申请日：2001-11-13

申请人： Noriyuki Tamura ,  Daizo Jito ,  Ryuji Ohshita ,  Masahisa Fujimoto ,  Maruo Kamino ,  Shin Fujitani

发明人： Noriyuki Tamura ,  Daizo Jito ,  Ryuji Ohshita ,  Masahisa Fujimoto ,  Maruo Kamino ,  Shin Fujitani

IPC分类号： H01M466

CPC分类号： H01M4/13 ,  H01M4/04 ,  H01M4/0461 ,  H01M4/38 ,  H01M4/382 ,  H01M4/387 ,  H01M4/661 ,  H01M4/667 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/027 ,  Y10T29/10

摘要： An electrode for a lithium secondary battery in which an alloy thin film containing Sn (tin) and In (indium) is formed on the surface of a current collector having a surface roughness Ra of 0.1 &mgr;m or more, and a lithium secondary battery using thereof.

摘要翻译： 在表面粗糙度Ra为0.1μm以上的集电体的表面上形成有含有Sn（锡）和In（铟）的合金薄膜的锂二次电池用电极和使用其的锂二次电池 。