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1. 发明申请

US20120070740A1 NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY 审中-公开
标题翻译：用于锂离子二次电池和锂离子二次电池的负极
公开(公告)号：US20120070740A1
公开(公告)日：2012-03-22
申请号：US13322002
申请日：2011-03-16
申请人： Katsumi Kashiwagi , Hideharu Takezawa , Masaya Ugaji
发明人： Katsumi Kashiwagi , Hideharu Takezawa , Masaya Ugaji
IPC分类号： H01M4/134
CPC分类号： H01M4/131 , H01M4/0421 , H01M4/134 , H01M4/386 , H01M4/485 , H01M4/70
摘要： Disclosed is a negative electrode for a lithium ion secondary battery, the negative electrode including a negative electrode current collector with protrusions formed on a surface thereon, and columnar bodies being carried on the protrusions and comprising an alloy active material capable of absorbing and releasing lithium ions. The columnar bodies each have a multilayer structure in which a plurality of unit layers comprising the alloy active material are stacked sequentially on the surface of the protrusion, and the average layer thickness of the unit layer in a region within 20% of the thickness of the columnar body extending from the surface of the protrusion is smaller than that in a region within 80% of the thickness of the columnar body extending from the top of the columnar body.
摘要翻译：公开了一种用于锂离子二次电池的负极，该负极包括在其表面上形成有突起的负极集电体，并且在该突起上承载有柱状体，并且包括能够吸收和释放锂离子的合金活性材料。柱状体各自具有多层结构，其中包括合金活性物质的多个单位层依次层叠在突起的表面上，单位层的平均层厚度在厚度的20％以内的区域中从突起的表面延伸的柱状体比从柱状体的顶部延伸的柱状体的厚度的80％以内的区域小。

2. 发明申请

US20110143195A1 NEGATIVE ELECTRODE FOR LITHIUM ION BATTERY, METHOD FOR PRODUCING THE SAME, AND LITHIUM ION BATTERY 审中-公开
标题翻译：用于锂离子电池的负极，其制造方法和锂离子电池
公开(公告)号：US20110143195A1
公开(公告)日：2011-06-16
申请号：US13059344
申请日：2010-06-17
申请人： Shuji Ito , Tatsuki Hiraoka , katsumi Kashiwagi , Hideharu Takezawa , Masaya Ugaji , Kunihiko Mineya
发明人： Shuji Ito , Tatsuki Hiraoka , katsumi Kashiwagi , Hideharu Takezawa , Masaya Ugaji , Kunihiko Mineya
IPC分类号： H01M4/58 , H01M4/26 , H01M10/056
CPC分类号： H01M10/0525 , H01M4/134 , H01M4/1395 , H01M4/36 , H01M4/366 , H01M4/38 , H01M4/386 , H01M4/387 , H01M10/0568 , H01M10/0569 , Y10T29/49115
摘要： A negative electrode 10 for a lithium ion battery of the present invention includes a negative electrode current collector 11, protrusions 13 formed so as to be spaced apart from each other on a surface of the negative electrode current collector 11, columns 12 supported on the protrusions 13 one by one, and a coating layer 15 coating a surface of each of the columns 12. The columns 12 include a negative electrode active material including either one of silicon and tin, and further include lithium absorbed thereinto. The coating layer 15 contains at least one of lithium carbonate and lithium fluoride and is formed by exposing the columns 12 to an atmosphere with a dew point temperature of −60° C. or higher and 0° C. or lower.
摘要翻译：本发明的锂离子电池用负极10包括负极集电体11，在负极集电体11的表面上形成为彼此间隔开的突起13，支撑在突起上的列12 并且涂布每个柱12的表面的涂层15.柱12包括包含硅和锡中的任一种的负极活性物质，并且还包含被吸收的锂。涂层15包含碳酸锂和氟化锂中的至少一种，并且通过将柱12暴露于露点温度为-60℃以上且0℃以下的气氛而形成。

3. 发明申请

US20120176097A1 METHOD FOR CHARGING/DISCHARGING POSITIVE ELECTRODE ACTIVE MATERIAL IN A LITHIUM SECONDARY BATTERY, CHARGING/DISCHARGING SYSTEM PROVIDED WITH LITHIUM SECONDARY BATTERY AND VEHICLE, ELECTRONIC DEVICE, BATTERY MODULE, BATTERY PACK 审中-公开
标题翻译：在锂二次电池中充电/放电正极电极活性材料的方法，用锂二次电池和电动车提供的充电/放电系统，电子设备，电池模块，电池组
公开(公告)号：US20120176097A1
公开(公告)日：2012-07-12
申请号：US13496167
申请日：2010-09-17
申请人： Hideharu Takezawa , Kazuya Iwamoto , Taisuke Yamamoto , Masaya Ugaji , Tatsuki Hiraoka
发明人： Hideharu Takezawa , Kazuya Iwamoto , Taisuke Yamamoto , Masaya Ugaji , Tatsuki Hiraoka
IPC分类号： H02J7/00
CPC分类号： H01M10/052 , H01M4/386 , H01M4/525 , H01M10/0445 , H01M10/443 , H01M10/448 , H01M10/48 , H01M2010/4292 , H02J7/0086 , Y02E60/122 , Y02T10/7011
摘要： In a charge/discharge method for a positive-electrode active material in a lithium secondary battery, the lithium secondary battery includes a positive electrode containing a positive-electrode active material capable of occluding and releasing lithium ions, a negative electrode containing a negative-electrode active material capable of occluding and releasing lithium ions, a separator located between the positive electrode and the negative electrode, and an electrolyte having a lithium ion conductivity; and the positive-electrode active material contains a nickel-type lithium-containing complex oxide. The positive electrode, which has been charged, is discharged until having a first potential VDp1 which is no less than 2.7 V and no more than 3.4 V on a lithium metal basis, and then the discharge is finished. Owing to this, the charge/discharge cycle life can be improved while the capacity of the lithium secondary battery is secured.
摘要翻译：在锂二次电池中的正极活性物质的充电/放电方法中，锂二次电池包括含有能够吸留和释放锂离子的正极活性物质的正极，含有负极的负极能够吸留和释放锂离子的活性物质，位于正极和负极之间的隔膜和具有锂离子传导性的电解质; 正极活性物质含有镍系复合氧化物。已经充电的正极被放电直到具有基于锂金属为2.7V以上且3.4V以下的第一电位VDp1，然后放电结束。由此，能够确保充电/放电循环寿命，同时确保锂二次电池的容量。

4. 发明申请

US20110279088A1 BATTERY PACK, DISCHARGE SYSTEM, CHARGE AND DISCHARGE SYSTEM, AND DISCHARGE CONTROL METHOD OF LITHIUM ION SECONDARY BATTERY 审中-公开
标题翻译：电池组，放电系统，充电和放电系统以及锂离子二次电池的放电控制方法
公开(公告)号：US20110279088A1
公开(公告)日：2011-11-17
申请号：US13145462
申请日：2010-12-01
申请人： Taisuke Yamamoto , Masaya Ugaji , Hideharu Takezawa , Tatsuki Hiraoka
发明人： Taisuke Yamamoto , Masaya Ugaji , Hideharu Takezawa , Tatsuki Hiraoka
IPC分类号： H02J7/04
CPC分类号： H02J7/0063 , H01M10/44 , H01M10/48 , H02J2007/0067
摘要： A battery pack includes at least a lithium ion secondary battery, a voltage sensor, and a control unit. The control unit controls discharge of the battery by a relatively high end-of-discharge voltage when the use frequency of the battery is relatively low during discharge of the battery. On the other hand, the control unit controls discharge of the battery by a relatively low end-of-discharge voltage when the use frequency of the battery is relatively high. Consequently, it is possible to prevent the utilizable capacity from decreasing more than a practical decrease in the capacity due to increase in the use frequency.
摘要翻译：电池组至少包括锂离子二次电池，电压传感器和控制单元。当电池放电期间电池的使用频率相对较低时，控制单元通过相对高的放电终止电压来控制电池的放电。另一方面，当电池的使用频率相对较高时，控制单元通过相对低的放电后电压来控制电池的放电。因此，由于使用频率的增加，可以防止可利用的容量比实际的容量减小更多。

5. 发明申请

US20110003208A1 NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
标题翻译：非水电解二次电池和非水电解质二次电池负极
公开(公告)号：US20110003208A1
公开(公告)日：2011-01-06
申请号：US12829800
申请日：2010-07-02
申请人： Tatsuki HIRAOKA , Masaya Ugaji , Taisuke Yamamoto , Hideharu Takezawa
发明人： Tatsuki HIRAOKA , Masaya Ugaji , Taisuke Yamamoto , Hideharu Takezawa
IPC分类号： H01M4/58
CPC分类号： H01M4/131 , H01M4/362 , H01M4/485 , H01M4/525 , H01M4/661 , H01M4/70 , H01M10/052
摘要： A negative electrode for a non-aqueous electrolyte secondary battery including: a current collector; and an active material layer including at least two alloy-based active materials selected from the group consisting of silicon, tin, a silicon oxide, and a tin oxide. The active material layer includes a first portion supported on a surface of the current collector, a second portion supported on a surface of the first portion, and a third portion supported on a surface of the second portion. The first portion includes the silicon oxide or the tin oxide, and the oxygen content in the silicon oxide or the tin oxide in the first portion decreases continuously or stepwise as approaching the second portion. The second portion includes silicon or tin. The third portion includes the silicon oxide or the tin oxide, and the oxygen content in the silicon oxide or the tin oxide in the third portion increases continuously or stepwise with distance from the second portion.
摘要翻译： 1.一种非水电解质二次电池用负极，其特征在于，包括：集电体; 以及包含选自硅，锡，氧化硅和氧化锡中的至少两种合金基活性物质的活性物质层。活性物质层包括支撑在集电体的表面上的第一部分，支撑在第一部分的表面上的第二部分和支撑在第二部分的表面上的第三部分。第一部分包括氧化硅或氧化锡，并且第一部分中氧化硅中的氧含量或氧化锡在接近第二部分时连续或逐步减小。第二部分包括硅或锡。第三部分包括氧化硅或氧化锡，并且第三部分中的氧化硅或氧化锡中的氧含量随着与第二部分的距离而连续或逐步增加。

6. 发明申请

US20100247990A1 BATTERY PACK 审中-公开
标题翻译：电池组
公开(公告)号：US20100247990A1
公开(公告)日：2010-09-30
申请号：US12677663
申请日：2009-06-02
申请人： Masaya Ugaji , Hideharu Takezawa , Taisuke Yamamoto , Yasushi Hirakawa
发明人： Masaya Ugaji , Hideharu Takezawa , Taisuke Yamamoto , Yasushi Hirakawa
IPC分类号： H01M6/10 , H01M6/42
CPC分类号： H01M2/0202 , H01M2/0257 , H01M2/1022 , H01M2/1094 , H01M4/134 , H01M4/139
摘要： A battery pack 1 of the present invention includes: a plurality of lithium ion secondary batteries 10 electrically connected together in series, in parallel, or in series-parallel combination; a tray 11; and a housing 12. The lithium ion secondary batteries 10 each include an electrode assembly containing an alloy-based negative electrode active material serving as a negative electrode active material, and each have a sealed surface 10a. The lithium ion secondary battery 10 is mounted on the tray. The housing 12 accommodates the tray 11 with the lithium ion secondary battery 10 mounted thereon. Even if high-temperature contents are produced in the interior of the lithium ion secondary battery 10 in the event of internal short circuiting or overcharging, this configuration prevents the high-temperature contents from leaking out of the batter pack 1, and thus improves the safety of the battery pack 1.
摘要翻译：本发明的电池组1包括：串联，并联或并联组合电连接在一起的多个锂离子二次电池10; 托盘11; 以及壳体12.锂离子二次电池10各自包括含有作为负极活性物质的合金系负极活性物质的电极体，各具有密封面10a。锂离子二次电池10安装在托盘上。壳体12容纳托架11，其上安装有锂离子二次电池10。即使在内部短路或过充电的情况下在锂离子二次电池10的内部产生高温成分，也能够防止高温成分从电池组1泄漏出来，从而提高安全性的电池组1。

7. 发明授权

US08883348B2 Electrode for lithium ion secondary battery 有权
标题翻译：锂离子二次电池用电极
公开(公告)号：US08883348B2
公开(公告)日：2014-11-11
申请号：US11916603
申请日：2006-07-21
申请人： Hajime Nishino , Shuji Tsutsumi , Shinji Kasamatsu , Hideharu Takezawa , Mikinari Shimada
发明人： Hajime Nishino , Shuji Tsutsumi , Shinji Kasamatsu , Hideharu Takezawa , Mikinari Shimada
IPC分类号： H01M4/00 , H01M4/13 , H01M4/58 , H01M10/0525 , H01M4/70
CPC分类号： H01M4/70 , H01M10/0525 , Y02E60/122 , Y02T10/7011
摘要： An object of the present invention is to provide an electrode for a lithium ion secondary battery that can ensure a high level of safety even when exposed to severe conditions such as a nail penetration test or crush test, and exhibit excellent output characteristics.The present invention relates to an electrode for a lithium ion secondary battery having a material mixture containing active material particles capable of reversibly absorbing and desorbing lithium, and a current collector that carries the material mixture, wherein a surface of the current collector has recessed portions, and an area occupied by the recessed portions accounts for not less than 30% of an a material mixture carrying area of the current collector. The present invention further relates to an electrode for a lithium ion secondary battery wherein, in a cut surface obtained by simultaneously cutting a material mixture and a current collector vertically to an electrode plane, the maximum depth of recessed portions is not less than 1 μm, or a difference between an average thickness of a current collector and a maximum thickness of the current collector is not less than 0.35 μm.
摘要翻译：本发明的目的是提供一种锂离子二次电池用电极，即使在暴露于诸如指甲穿透试验或粉碎试验等严酷条件下也能够确保高水平的安全性，并且显示出优异的输出特性。本发明涉及一种锂离子二次电池用电极，其具有包含能够可逆地吸收和解吸锂的活性物质粒子的材料混合物，以及承载该材料混合物的集电体，其中集电体的表面具有凹部，并且由凹部占据的面积占集电体的混合物承载面积的30％以上。本发明还涉及一种锂离子二次电池用电极，其特征在于，在与电极平面垂直地同时切割材料混合物和集电体的切断面中，凹部的最大深度为1μm以上，或者集电体的平均厚度与集电体的最大厚度的差为0.35μm以上。

8. 发明授权

US08568925B2 Lithium secondary battery 有权
标题翻译：锂二次电池
公开(公告)号：US08568925B2
公开(公告)日：2013-10-29
申请号：US13502996
申请日：2011-05-12
申请人： Taisuke Yamamoto , Hideharu Takezawa
发明人： Taisuke Yamamoto , Hideharu Takezawa
IPC分类号： H01M4/485
CPC分类号： H01M10/0525 , H01M4/485 , H01M4/525 , H01M4/587 , H01M2004/021 , H01M2010/4292 , Y02T10/7011
摘要： A lithium secondary battery according to the present invention includes: a positive electrode having a positive-electrode active material capable of occluding and releasing lithium ions; a negative electrode having a negative-electrode active material capable of occluding and releasing lithium ions; a separator interposed between the positive electrode and the negative electrode; and an electrolyte having lithium-ion conductivity. The positive-electrode active material contains a nickel-type lithium-containing complex oxide. The negative-electrode active material contains a graphite-type material having a reversible capacity of 350 mAh/g or more and an irreversible capacity of 30 mAh/g or less. A ratio Qc/Qa between an irreversible capacity Qc per unit area in a portion of the positive electrode that opposes the negative electrode and an irreversible capacity Qa per unit area in a portion of the negative electrode that opposes the positive electrode is equal to or greater than 0.50 but less than 1. As a result, the charge-discharge cycle characteristics can be improved while ensuring a high capacity.
摘要翻译：根据本发明的锂二次电池包括：具有能够吸留和释放锂离子的正极活性物质的正极; 具有能够吸留和释放锂离子的负极活性物质的负极; 夹在正极和负极之间的隔膜; 和具有锂离子传导性的电解质。正极活性物质含有镍系锂系复合氧化物。负极活性物质含有350mAh / g以上的可逆容量和30mAh / g以下的不可逆容量的石墨类材料。与负极相对的正极的部分中的每单位面积的不可逆容量Qc与正极相对的负极部分中的每单位面积的不可逆容量Qa之比Qc / Qa等于或等于大于0.50但小于1.结果，可以在确保高容量的同时提高充放电循环特性。

9. 发明授权

US08153292B2 Electrochemical device, manufacturing method of electrode thereof and processing apparatus for electrode of electrochemical device 失效
标题翻译：电化学装置，其电极的制造方法和电化学装置用电极的加工装置
公开(公告)号：US08153292B2
公开(公告)日：2012-04-10
申请号：US12100774
申请日：2008-04-10
申请人： Hideharu Takezawa
发明人： Hideharu Takezawa
IPC分类号： H01M10/36
CPC分类号： H01M4/1395 , H01M4/139 , H01M4/1391 , H01M4/483 , H01M10/0562 , H01M10/0567 , H01M10/0568 , H01M10/0569
摘要： According to a method for manufacturing an electrode of an electrochemical device, an electrode precursor capable of absorbing and releasing lithium is provided with lithium, and the resistance of the electrode precursor is measured after absorbing lithium. In addition, a processing apparatus for an electrode of an electrochemical device includes a lithium providing section for providing lithium to such an electrode precursor, and a first measurement section for measuring the resistance of the electrode precursor after absorbing lithium.
摘要翻译：根据用于制造电化学装置的电极的方法，能够吸收和释放锂的电极前体被提供有锂，并且在吸收锂之后测量电极前体的电阻。另外，用于电化学装置的电极的处理装置包括用于向这种电极前体提供锂的锂提供部分和用于在吸收锂之后测量电极前体的电阻的第一测量部分。

10. 发明申请

US20110020536A1 ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME 审中-公开
标题翻译：用于锂二次电池的电极及其制造方法
公开(公告)号：US20110020536A1
公开(公告)日：2011-01-27
申请号：US12934200
申请日：2009-03-26
申请人： Taisuke Yamamoto , Kazuyoshi Honda , Hideharu Takezawa
发明人： Taisuke Yamamoto , Kazuyoshi Honda , Hideharu Takezawa
IPC分类号： B05D5/12 , H01M4/02 , H01M4/04
CPC分类号： H01M10/0525 , H01M4/139 , H01M4/483 , Y02T10/7011
摘要： A production method of an electrode for a lithium-ion secondary battery includes: (A) a step of providing a current collector 11 having a plurality of bumps 12 on a surface thereof; (B) a step of allowing an evaporated source material to strike from a direction E which is tilted with respect to the normal of the surface of the current collector 11 to form a corresponding plurality of pillar-like members 14 on the plurality of bumps 12; and (C) a step of oxidizing the plurality of pillar-like members 14 to form a plurality of active material members 18 containing an oxide of the source material.
摘要翻译：锂离子二次电池用电极的制造方法包括：（A）在其表面上设置具有多个凸块12的集电体11的工序; （B）允许蒸发的源材料从相对于集电体11的表面的法线倾斜的方向E撞击以在多个凸块12上形成相应的多个柱状构件14的步骤 ; 和（C）氧化多个柱状构件14以形成含有源材料的氧化物的多个活性物质构件18的工序。

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