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41.发明申请Negative electrode for lithium ion secondary battery, production method thereof and lithium ion secondary battery comprising the same 有权锂离子二次电池用负极及其制造方法以及包含该锂离子二次电池的锂离子二次电池公开(公告)号：US20060134518A1
公开(公告)日：2006-06-22
申请号：US11301027
申请日：2005-12-13
CPC分类号： H01M10/0525 , H01M4/0426 , H01M4/131 , H01M4/1391 , H01M4/1395 , H01M4/366 , H01M4/386 , H01M4/485 , H01M4/525 , H01M10/0587 , H01M2004/027
摘要： A negative electrode for a lithium ion secondary battery including a current collector and an active material layer carried on the current collector, wherein the active material layer includes a first layer and a second layer alternately laminated in a thickness direction of the active material layer, and wherein the first layer includes silicon or silicon and a small amount of oxygen and the second layer includes silicon and a larger amount of oxygen than the first layer. With the use of the negative electrode, it is possible to provide a high capacity lithium ion secondary battery having excellent high rate charge/discharge characteristics and superior cycle characteristics.
摘要翻译： 1.一种锂离子二次电池用负极，其包含集电体和承载在集电体上的活性物质层的锂离子二次电池，其特征在于，所述活性物质层包括在活性物质层的厚度方向上交替层叠的第一层和第二层， 其中所述第一层包括硅或硅和少量的氧，并且所述第二层包括硅和比所述第一层更大量的氧。 通过使用负极，可以提供具有优异的高速率充放电特性和优异的循环特性的高容量锂离子二次电池。
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42.发明申请Negative electrode for lithium ion secondary battery, production method thereof and lithium ion secondary battery comprising the same 有权锂离子二次电池用负极及其制造方法以及包含该锂离子二次电池的锂离子二次电池公开(公告)号：US20060099507A1
公开(公告)日：2006-05-11
申请号：US11266299
申请日：2005-11-04
CPC分类号： H01M4/485 , H01M4/0419 , H01M4/0421 , H01M4/131 , H01M4/1391 , H01M4/525 , H01M2004/021 , H01M2004/027
摘要： A negative electrode for a lithium ion secondary battery of the present invention includes a current collector and an active material layer carried on the current collector. The active material layer contains silicon and oxygen. In the thickness direction of the active material layer, an oxygen ratio of the active material is greater at the side of the active material layer in contact with the current collector than at the side of the active material layer not in contact with the current collector. The active material layer contains no binder. By using the negative electrode described above, it is possible to provide a high capacity lithium ion secondary battery having superior high rate charge/discharge characteristics and excellent cycle characteristics.
摘要翻译： 本发明的锂离子二次电池用负极包括在集电体上承载的集电体和活性物质层。 活性物质层含有硅和氧。 在活性物质层的厚度方向上，活性物质层的与集电体接触的一侧的活性物质的氧比在与集电体不接触的活性物质层侧相比更大。 活性物质层不含粘合剂。 通过使用上述负极，可以提供具有优异的高倍率充放电特性和优异的循环特性的高容量锂离子二次电池。
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公开(公告)号：US08986882B2
公开(公告)日：2015-03-24
申请号：US12306854
申请日：2007-12-26
申请人： Shuji Ito , Yasutaka Kogetsu , Kazuya Iwamoto , Kazuyoshi Honda , Taisuke Yamamoto , Yasuhiro Ueyama , Keisuke Ohara , Hitoshi Katayama
发明人： Shuji Ito , Yasutaka Kogetsu , Kazuya Iwamoto , Kazuyoshi Honda , Taisuke Yamamoto , Yasuhiro Ueyama , Keisuke Ohara , Hitoshi Katayama
IPC分类号： H01M4/02 , H01M4/70 , H01M4/66 , H01M10/0525 , H01M4/04
CPC分类号： H01M4/70 , H01M4/04 , H01M4/66 , H01M4/662 , H01M10/0525 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： The present invention relates to a current collector including a base portion with a flat face, primary projections projecting from the flat face, and secondary projections projecting from the top of the primary projections. The present invention also relates to a current collector including a base portion with a flat face and primary projections projecting from the flat face, wherein the roughening rate of the top of the primary projections is 3 to 20. By using such a current collector, separation of the active material from the current collector can be inhibited when using an active material that has a high capacity but undergoes a large expansion at the time of lithium ion absorption.
摘要翻译： 本发明涉及一种集电器，其包括具有平坦表面的基部，从平坦表面突出的第一突起和从第一突起的顶部突出的第二突起。 本发明还涉及一种集电体，其包括具有平坦面的基部和从平坦面突出的一次突起，其中，第一突起的顶部的粗糙化率为3〜20。通过使用这样的集电体， 当使用具有高容量但在锂离子吸收时发生大的膨胀的活性材料时，能够抑制来自集电体的活性物质。
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44.发明授权公开(公告)号：US08389156B2
公开(公告)日：2013-03-05
申请号：US12303854
申请日：2007-08-22
申请人： Katsumi Kashiwagi , Kazuyoshi Honda , Masaki Hasegawa , Masaya Ugaji , Yasutaka Kogetsu , Shuji Ito
发明人： Katsumi Kashiwagi , Kazuyoshi Honda , Masaki Hasegawa , Masaya Ugaji , Yasutaka Kogetsu , Shuji Ito
IPC分类号： H01M4/02
CPC分类号： H01M4/13 , H01M4/386 , H01M4/40 , H01M4/70 , H01M10/0525 , H01M2004/025 , H01M2004/027
摘要： This invention provides a negative electrode and a non-aqueous electrolyte secondary battery including the negative electrode. The negative electrode includes a Li-absorbing element as a negative electrode active material, is free from deformation, separation of the negative electrode active material layer from the negative electrode current collector, and deposition of lithium on the negative electrode current collector, and is excellent in cycle characteristic, large-current discharge characteristic, and low-temperature discharge characteristic.The negative electrode of this invention includes: a current collector having depressions and protrusions on a surface in the thickness direction thereof; and a negative electrode active material layer that includes a plurality of columns containing a negative electrode active material that absorbs and releases lithium ions, the columns being grown outwardly from the surface of the current collector. The negative electrode of this invention is characterized in that the columns are grown at an inclination angle relative to the direction perpendicular to the surface of the current collector, and that the inclination angle of the columns changes reversibly depending on absorption and release of lithium ions by the negative electrode active material.
摘要翻译： 本发明提供一种负极和含有负极的非水电解质二次电池。 负极包括作为负极活性物质的Li吸收元件，没有变形，负极活性物质层与负极集电体分离，并且在负极集电体上沉积锂，并且优异 循环特性，大电流放电特性和低温放电特性。 本发明的负极包括：在其厚度方向的表面上具有凹陷和突起的集电器; 以及包含吸收和释放锂离子的负极活性物质的多个列的负极活性物质层，所述列从集电体的表面向外生长。 本发明的负极的特征在于，柱相对于与集电体的表面垂直的方向以倾斜角度生长，并且柱的倾斜角随着锂离子的吸收和释放而可逆地变化 负极活性物质。
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45.发明授权Negative electrode for lithium ion secondary battery and lithium ion secondary battery including the same 失效锂离子二次电池用负极和包含锂离子二次电池的锂离子二次电池公开(公告)号：US08236454B2
公开(公告)日：2012-08-07
申请号：US11898695
申请日：2007-09-14
申请人： Yasutaka Kogetsu , Shuji Ito
发明人： Yasutaka Kogetsu , Shuji Ito
摘要： A negative electrode for a lithium ion secondary battery of the present invention includes a sheet-like current collector and an active material layer carried on the current collector. The current collector includes a substrate and a surface portion that undergoes plastic deformation more easily than the substrate. The surface portion has protrusions and recesses. The active material layer includes a plurality of columnar particles containing silicon. The columnar particles are carried on the surface portion.
摘要翻译： 本发明的锂离子二次电池用负极包括在集电体上承载的片状集电体和活性物质层。 集电体包括基板和比基板更容易发生塑性变形的表面部分。 表面部分具有突起和凹陷。 活性物质层包括多个含有硅的柱状颗粒。 柱状颗粒承载在表面部分上。
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46.发明授权Negative electrode for lithium ion secondary battery, production method thereof and lithium ion secondary battery comprising the same 有权锂离子二次电池用负极及其制造方法以及包含该锂离子二次电池的锂离子二次电池公开(公告)号：US07919205B2
公开(公告)日：2011-04-05
申请号：US11266299
申请日：2005-11-04
IPC分类号： H01M4/00
CPC分类号： H01M4/485 , H01M4/0419 , H01M4/0421 , H01M4/131 , H01M4/1391 , H01M4/525 , H01M2004/021 , H01M2004/027
摘要： A negative electrode for a lithium ion secondary battery of the present invention includes a current collector and an active material layer carried on the current collector. The active material layer contains silicon and oxygen. In the thickness direction of the active material layer, an oxygen ratio of the active material is greater at the side of the active material layer in contact with the current collector than at the side of the active material layer not in contact with the current collector. The active material layer contains no binder. By using the negative electrode described above, it is possible to provide a high capacity lithium ion secondary battery having superior high rate charge/discharge characteristics and excellent cycle characteristics.
摘要翻译： 本发明的锂离子二次电池用负极包括在集电体上承载的集电体和活性物质层。 活性物质层含有硅和氧。 在活性物质层的厚度方向上，活性物质层的与集电体接触的一侧的活性物质的氧比在与集电体不接触的活性物质层侧相比更大。 活性物质层不含粘合剂。 通过使用上述负极，可以提供具有优异的高倍率充放电特性和优异的循环特性的高容量锂离子二次电池。
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47.发明授权公开(公告)号：US07838153B2
公开(公告)日：2010-11-23
申请号：US12439296
申请日：2007-08-28
IPC分类号： H01M4/58
CPC分类号： H01M4/70 , H01M4/13 , H01M4/131 , H01M4/134 , H01M4/139 , H01M4/1391 , H01M4/1395 , H01M4/5815 , H01M10/052 , H01M10/058 , H01M2004/027
摘要： An electrode capable of effectively dispersing or relieving the stress generated in association with expansion and contraction of an active material is provided. The electrode is produced by forming an active material layer on a predetermined current collector. This current collector includes a base and a plurality of projections formed so as to extend outwardly from a surface of the base. The cross section of the projections in a thickness direction of the current collector has a tapered shape in which a width in a direction parallel to the surface of the base narrows from the surface of the base along an extending direction of the projections.
摘要翻译： 提供了能够有效地分散或减轻与活性物质的膨胀和收缩相关产生的应力的电极。 通过在预定的集电体上形成活性物质层来制造电极。 该集电器包括基部和形成为从基部的表面向外延伸的多个突起。 突起在集电体的厚度方向的截面呈锥形，其中沿基板的表面平行的方向的宽度沿着突起的延伸方向从基板的表面变窄。
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48.发明授权公开(公告)号：US07807294B2
公开(公告)日：2010-10-05
申请号：US11631489
申请日：2005-09-14
CPC分类号： H01M10/052 , H01M4/0416 , H01M4/0421 , H01M4/0426 , H01M4/0428 , H01M4/0471 , H01M4/136 , H01M4/1397 , H01M4/366 , H01M4/58 , H01M4/621 , H01M4/661 , H01M4/70 , H01M2004/021
摘要： A negative electrode for a non-aqueous electrolyte secondary battery, including: an active material layer capable of electrochemically absorbing and desorbing at least Li; and a current collector sheet that supports the active material layer thereon and that does not react with Li, wherein the active material layer includes a plurality of deposited films or sintered films supported on a surface of the current collector sheet, and each of the deposited films or sintered films is provided with at least one groove formed in a side surface thereof, the groove extending from a top surface side towards the current collector sheet side thereof. It is preferable that the plurality of deposited films or sintered films are arranged in a grid configuration, a staggered grid configuration or a honeycomb configuration on a surface of the current collector sheet. It is preferable that, in a discharged state, the plurality of deposited films or sintered films have an average height of not less than 1 μm and not more than 30 μm.
摘要翻译： 一种非水电解质二次电池用负极，其特征在于，包括：能够至少电化学吸收解吸的Li的活性物质层; 以及在其上支撑活性物质层并且不与Li反应的集电体片，其中活性物质层包括多个沉积膜或负载在集电体片表面上的烧结膜，并且每个沉积膜 或烧结膜设置有形成在其侧表面中的至少一个槽，所述槽从顶表面侧朝向集电体片侧延伸。 多个沉积膜或烧结膜优选以集电体片的表面上的格栅构造，交错格栅构造或蜂窝构造布置。 优选的是，在放电状态下，多个沉积膜或烧结膜的平均高度不小于1μm且不大于30μm。
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49.发明申请METHOD OF PRODUCING SILICON OXIDE, NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY USING THE SAME 审中-公开生产氧化硅的方法，用于锂离子二次电池的负极电极活性材料和使用其的锂离子二次电池公开(公告)号：US20100178566A1
公开(公告)日：2010-07-15
申请号：US12729994
申请日：2010-03-23
申请人： Yasutaka Kogetsu , Sumihito Ishida
发明人： Yasutaka Kogetsu , Sumihito Ishida
CPC分类号： C23C14/10 , C01B33/113 , C23C14/0005 , H01M4/02 , H01M4/131 , H01M4/485 , H01M4/625 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： A method for producing a silicon oxide including the steps of supplying silicon atoms onto a substrate through an oxygen atmosphere to form a silicon oxide layer on the substrate, and separating the silicon oxide layer from the substrate and pulverizing the separated silicon oxide layer to obtain silicon oxide containing silicon and oxygen in predetermined proportions, and a negative electrode active material obtained by the production method.
摘要翻译： 一种生产氧化硅的方法，包括以下步骤：通过氧气氛将硅原子供应到衬底上以在衬底上形成氧化硅层，并将氧化硅层与衬底分离并粉碎分离的氧化硅层以获得硅 含有规定比例的硅和氧的氧化物，以及通过该制造方法得到的负极活性物质。
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公开(公告)号：US20090108502A1
公开(公告)日：2009-04-30
申请号：US12255977
申请日：2008-10-22
CPC分类号： H01M10/052 , B23K26/066 , B23K26/0823 , B41M5/262 , B41M5/265 , H01M4/661 , H01M4/72 , Y10T428/24273
摘要： In a laser processing mask, apertures formed thereon as laser light passing apertures are shaped so that a plurality of protrusions extend radially from the center of each of the apertures to the peripheral portion thereof. By using this laser processing mask, a recess pattern with dimensions of several micrometers to several tens of micrometers and high dimensional precision and shape precision can be formed on the surface of a workpiece made of, for example, a metal material by laser processing.
摘要翻译： 在激光加工掩模中，其上形成的激光通过孔的孔被成形为使得多个突起从每个孔的中心径向延伸到其周边部分。 通过使用该激光加工掩模，可以通过激光加工在例如金属材料制成的工件的表面上形成尺寸为几微米至几十微米的凹凸图案，并且具有高尺寸精度和形状精度。
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