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11. 发明授权

US08399129B2 Negative electrode for lithium secondary battery, and lithium secondary battery including the same 失效
标题翻译：锂二次电池用负极和包含锂二次电池的锂二次电池
公开(公告)号：US08399129B2
公开(公告)日：2013-03-19
申请号：US12297836
申请日：2007-10-02
申请人： Masaya Ugaji , Masaki Hasegawa , Taisuke Yamamoto , Keisuke Ohara , Yasutaka Kogetsu , Takuhiro Nishimura
发明人： Masaya Ugaji , Masaki Hasegawa , Taisuke Yamamoto , Keisuke Ohara , Yasutaka Kogetsu , Takuhiro Nishimura
IPC分类号： H01M4/02 , H01M4/36
CPC分类号： H01M10/052 , H01M4/134 , H01M4/661 , H01M4/70
摘要： A negative electrode for a lithium secondary battery of the present invention includes a current collector and a negative electrode active material layer carried on the current collector. The negative electrode active material layer includes a plurality of columnar particles. The current collector has a surface including a depression and a plurality of projected regions defined by the depression. The projected regions carry the columnar particles. Further, the present invention relates to a lithium secondary battery using the foregoing negative electrode. According to the present invention, it is possible to provide a high-capacity negative electrode excellent mainly in cycle characteristics for a lithium secondary battery, and a lithium secondary battery including the same.
摘要翻译：本发明的锂二次电池用负极包括在集电体上承载的集电体和负极活性物质层。负极活性物质层包含多个柱状粒子。集电器具有包括凹陷的表面和由凹陷限定的多个投影区域。投影区域带有柱状颗粒。此外，本发明涉及使用上述负极的锂二次电池。根据本发明，可以提供主要在锂二次电池的循环特性和包括该锂二次电池的锂二次电池中优异的高容量负极。

12. 发明授权

US08373419B2 Lifetime estimating method and deterioration suppressing method for rechargeable lithium battery, lifetime estimating apparatus, deterioration suppressor, and battery pack and charger using the same 失效
标题翻译：可再充电锂电池的寿命估计方法和劣化抑制方法，寿命估计装置，劣化抑制器以及使用其的电池组和充电器
公开(公告)号：US08373419B2
公开(公告)日：2013-02-12
申请号：US12741171
申请日：2008-12-11
申请人： Masaya Ugaji , Taisuke Yamamoto
发明人： Masaya Ugaji , Taisuke Yamamoto
IPC分类号： H02J7/00 , G01N27/416 , G01R31/36
CPC分类号： G01R31/3679 , H01M10/0525 , H01M10/42
摘要： In a lifetime estimating method for a rechargeable lithium battery, the open circuit voltages of the rechargeable lithium battery after discharging for at least two different charge/discharge cycle numbers are detected while charge/discharge cycles go on. Next, at least the two of the voltage values are plotted for respective cycle numbers, and a circular arc passing the plotted points is drawn. Furthermore, the lifetime of the rechargeable lithium battery is estimated based on a size of the circular arc. The progression of deterioration can be suppressed by controlling the charge and discharge of the rechargeable lithium battery based on the lifetime estimation.
摘要翻译：在可再充电锂电池的寿命估计方法中，在充电/放电循环继续进行时，检测到放电后至少两个不同充电/放电循环数的可再充电锂电池的开路电压。接下来，针对各个循环次数绘制至少两个电压值，并绘制通过绘制点的圆弧。此外，可再充电锂电池的寿命基于圆弧的尺寸来估计。可以通过基于寿命估计来控制可再充电锂电池的充电和放电来抑制劣化的进行。

13. 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。

14. 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。

15. 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。

16. 发明申请

US20100151330A1 NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME 有权
标题翻译：用于非水电解质二次电池的负极，其制造方法和使用其的非水电解质二次电池
公开(公告)号：US20100151330A1
公开(公告)日：2010-06-17
申请号：US12093707
申请日：2007-11-07
申请人： Masaya Ugaji , Masaki Hasegawa , Taisuke Yamamoto , Keisuke Ohara
发明人： Masaya Ugaji , Masaki Hasegawa , Taisuke Yamamoto , Keisuke Ohara
IPC分类号： H01M4/58 , H01M4/08
CPC分类号： H01M4/70 , H01M4/13 , H01M4/136 , H01M4/362 , H01M4/483 , H01M4/58 , H01M10/0525 , H01M10/0565 , H01M10/0566 , H01M10/058 , H01M2004/027 , Y10T29/49108
摘要： A negative electrode for a non-aqueous electrolyte secondary battery, which reversibly inserts/extracts lithium ions includes a current collector (11) in which a concave portion (12) and a convex portion (13) are formed at least one surface thereof; and a columnar body (15) which is formed by laminating n (n≧2) stages of columnar body portions which are obliquely erected on the convex portion (13) of the current collector (11) and in which a content ratio of elements sequentially vary in a longitudinal direction of the current collector (11), and has a configuration in which variation directions of content ratios of elements of odd-numbered stages of columnar body portions and even-numbered stages of columnar body portions are different from each other. At least three surfaces (13a, 13b, 13c) of the convex portion (13) in a section of the longitudinal direction are covered by the columnar body portions.
摘要翻译：用于可逆地插入/提取锂离子的非水电解质二次电池用负极包括在其至少一个表面上形成有凹部（12）和凸部（13）的集电体（11）以及柱状体（15），其通过层叠n（n≥2）级的柱状体部分而形成，所述柱状体部分倾斜地竖立在集电体（11）的凸部（13）上，并且其中元素的含量比依次在集电体（11）的长度方向上变化，并且具有柱状体部的奇数级和偶数级的柱状体部的元件的含量比的变化方向彼此不同的结构。在纵向方向的一部分中的凸部（13）的至少三个表面（13a，13b，13c）被柱状体部分覆盖。

17. 发明授权

US09153817B2 Lithium ion secondary battery 有权
标题翻译：锂离子二次电池
公开(公告)号：US09153817B2
公开(公告)日：2015-10-06
申请号：US13320464
申请日：2011-04-26
申请人： Tatsuki Hiraoka , Taisuke Yamamoto , Katsumi Kashiwagi , Masaya Ugaji
发明人： Tatsuki Hiraoka , Taisuke Yamamoto , Katsumi Kashiwagi , Masaya Ugaji
IPC分类号： H01M4/62 , H01M4/134 , H01M10/052 , H01M10/0566
CPC分类号： H01M4/134 , H01M4/621 , H01M10/052 , H01M10/0566 , Y02E60/122 , Y02T10/7011
摘要： Disclosed is a lithium ion secondary battery including: a positive electrode including a positive electrode active material layer comprising a positive electrode active material capable of absorbing and releasing lithium ions, and a positive electrode current collector; a negative electrode including a negative electrode active material layer comprising an alloy-formable active material, and a negative electrode current collector; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode active material layer has an easily swellable resin having a degree of swelling with the non-aqueous electrolyte of 20% or more, and the negative electrode active material layer has a hardly swellable resin having a degree of swelling with the non-aqueous electrolyte of less than 20%.
摘要翻译：公开了一种锂离子二次电池，其包括：正极，包括具有能够吸收和释放锂离子的正极活性物质的正极活性物质层和正极集电体; 包括含有可合金成形的活性物质的负极活性物质层的负极和负极集电体; 夹在正极和负极之间的隔膜; 和非水电解质。正极活性物质层具有非水电解质溶胀度容易溶胀的树脂20％以上，负极活性物质层具有难溶胀性的树脂，其膨润度为非水性电解质小于20％。

18. 发明申请

US20110267001A1 CHARGING METHOD AND CHARGER FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
标题翻译：非水电解质二次电池充电方法和充电器
公开(公告)号：US20110267001A1
公开(公告)日：2011-11-03
申请号：US13122096
申请日：2010-06-15
申请人： Tatsuki Hiraoka , Masaya Ugaji , Taisuke Yamamoto , Katsumi Kashiwagi
发明人： Tatsuki Hiraoka , Masaya Ugaji , Taisuke Yamamoto , Katsumi Kashiwagi
IPC分类号： H02J7/04 , H02J7/00
CPC分类号： H02J7/0086 , H01M10/0525 , H01M10/441 , H02J7/0013
摘要： In a charging method for a non-aqueous electrolyte secondary battery which includes a positive electrode including a lithium-containing composite oxide as an active material, a negative electrode including an alloy-formable negative electrode active material, and a non-aqueous electrolyte, a voltage of the secondary battery is detected. When the detected value is smaller than a predetermined voltage x, charging is performed at a comparatively small current value B. When the detected value is equal to or greater than the predetermined voltage x and smaller than a predetermined voltage z, charging is performed at a comparatively great current value A. When the detected value is equal to or greater than the predetermined voltage z and smaller than a predetermined voltage y, charging is performed at a comparatively small current value C. When the detected value is greater than the predetermined voltage y, constant-voltage charging is performed or charging is terminated. Here, x
摘要翻译：在包括含有作为活性物质的含锂复合氧化物的正极的非水电解质二次电池的充电方法中，包含合金成形性负极活性物质的负极和非水电解质，检测到二次电池的电压。当检测值小于预定电压x时，以比较小的电流值B进行充电。当检测值等于或大于预定电压x并小于预定电压z时，在相对较大的电流值A.当检测值等于或大于预定电压z且小于预定电压y时，以相对较小的电流值C进行充电。当检测值大于预定电压y ，执行恒压充电或终止充电。这里，x

19. 发明授权

US08029933B2 Negative electrode for non-aqueous electrolyte secondary battery, method for manufacturing the same, and non-aqueous electrolyte secondary battery using the same 失效
标题翻译：非水电解质二次电池用负极及其制造方法以及使用该非水电解质二次电池的非水电解质二次电池
公开(公告)号：US08029933B2
公开(公告)日：2011-10-04
申请号：US12064177
申请日：2007-09-21
申请人： Masaya Ugaji , Masaki Hasegawa , Taisuke Yamamoto , Keisuke Ohara
发明人： Masaya Ugaji , Masaki Hasegawa , Taisuke Yamamoto , Keisuke Ohara
IPC分类号： H01M4/76 , H01M4/64 , H01M4/72 , H01M4/13 , H01M4/58 , H01M4/82 , H01M6/00
CPC分类号： H01M4/1391 , H01M4/0423 , H01M4/131 , H01M4/70 , Y10T29/49108 , Y10T29/49115
摘要： A negative electrode for a non-aqueous electrolyte secondary battery reversibly inserting and extracting lithium ions, and including current collector having concave portion and convex portion on at least one surface thereof; and columnar body formed on convex portion of current collector and including columnar body portions laminated in n stages (n≧2) in which a content ratio of an element sequentially changes in the longitudinal direction of the current collector. The content ratio of an element is different between in an odd stage and in an even stage of columnar body portions.
摘要翻译：一种用于非水电解质二次电池的负极，其可逆地插入和提取锂离子，并且在其至少一个表面上包括具有凹部和凸部的集电体; 柱状体形成在集电体的凸部上，并且包括层叠在n个阶段（n≥2）的柱状体部，其中元件的含量比在集电体的纵向方向依次变化。元件的含量比在柱状体部分的奇数阶段和偶数阶段中是不同的。

20. 发明授权

US07947396B2 Negative electrode for non-aqueous electrolyte secondary battery, method of manufacturing the same, and non-aqueous electrolyte secondary battery using the same 有权
标题翻译：非水电解质二次电池用负极及其制造方法以及使用其的非水电解质二次电池
公开(公告)号：US07947396B2
公开(公告)日：2011-05-24
申请号：US12093707
申请日：2007-11-07
申请人： Masaya Ugaji , Masaki Hasegawa , Taisuke Yamamoto , Keisuke Ohara
发明人： Masaya Ugaji , Masaki Hasegawa , Taisuke Yamamoto , Keisuke Ohara
IPC分类号： H01M4/58
CPC分类号： H01M4/70 , H01M4/13 , H01M4/136 , H01M4/362 , H01M4/483 , H01M4/58 , H01M10/0525 , H01M10/0565 , H01M10/0566 , H01M10/058 , H01M2004/027 , Y10T29/49108
摘要： A negative electrode for a non-aqueous electrolyte secondary battery, which reversibly inserts/extracts lithium ions includes a current collector (11) in which a concave portion (12) and a convex portion (13) are formed at least one surface thereof; and a columnar body (15) which is formed by laminating n (n≧2) stages of columnar body portions which are obliquely erected on the convex portion (13) of the current collector (11) and in which a content ratio of elements sequentially vary in a longitudinal direction of the current collector (11), and has a configuration in which variation directions of content ratios of elements of odd-numbered stages of columnar body portions and even-numbered stages of columnar body portions are different from each other. At least three surfaces (13a, 13b, 13c) of the convex portion (13) in a section of the longitudinal direction are covered by the columnar body portions.
摘要翻译：用于可逆地插入/提取锂离子的非水电解质二次电池用负极包括在其至少一个表面上形成有凹部（12）和凸部（13）的集电体（11）以及柱状体（15），其通过层叠n（n≥2）级的柱状体部分而形成，所述柱状体部分倾斜地竖立在集电体（11）的凸部（13）上，并且其中元素的含量比依次在集电体（11）的长度方向上变化，并且具有柱状体部的奇数级和偶数级的柱状体部的元件的含量比的变化方向彼此不同的结构。在纵向方向的一部分中的凸部（13）的至少三个表面（13a，13b，13c）被柱状体部分覆盖。

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