公开(公告)号：US09559383B2

公开(公告)日：2017-01-31

申请号：US14372299

申请日：2012-01-17

申请人： Masahiro Morita ,  Toshihiko Mitsuhashi ,  Keisuke Ohara ,  Yuji Yokoyama ,  Yusuke Fukumoto ,  Tatsuya Hashimoto

发明人： Masahiro Morita ,  Toshihiko Mitsuhashi ,  Keisuke Ohara ,  Yuji Yokoyama ,  Yusuke Fukumoto ,  Tatsuya Hashimoto

IPC分类号： H01M10/05 ,  H01M10/0567 ,  H01M10/0525 ,  H01M10/42 ,  H01M2/34

CPC分类号： H01M10/0567 ,  H01M2/345 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

摘要： The present invention provides a sealed lithium secondary battery in which redox shuttle reactions of an aromatic compound that is an overcharge inhibitor are inhibited, and the aromatic compound decomposes appropriately, and a desired amount of gas can be generated more stably than in conventional instances, even in high-temperature environments. In the sealed lithium secondary battery (100), an electrode assembly (80) and an electrolyte are accommodated in a battery case (50) that is provided with a current interrupt device (30). The electrolyte comprises a compound that is capable of suppressing drops in viscosity of the electrolyte as a result of a rise in temperature in a temperature region up to 100° C., and an aromatic compound capable of generating hydrogen gas when a predetermined battery voltage is exceeded.

摘要翻译： 本发明提供一种密封的锂二次电池，其中抑制了作为过充电抑制剂的芳族化合物的氧化还原穿梭反应，并且芳族化合物适当地分解，并且与常规情况相比可以更稳定地产生所需量的气体，甚至 在高温环境中。 在密封锂二次电池（100）中，电极组件（80）和电解质容纳在设置有电流中断装置（30）的电池壳体（50）中。 该电解质包含能够抑制由于温度上升到100℃而导致的电解液粘度降低的化合物，以及当预定的电池电压为 超过了

公开(公告)号：US20140342200A1

公开(公告)日：2014-11-20

申请号：US14372299

申请日：2012-01-17

申请人： Masahiro Morita ,  Toshihiko Mitsuhashi ,  Keisuke Ohara ,  Yuji Yokoyama ,  Yusuke Fukumoto ,  Tatsuya Hashimoto

发明人： Masahiro Morita ,  Toshihiko Mitsuhashi ,  Keisuke Ohara ,  Yuji Yokoyama ,  Yusuke Fukumoto ,  Tatsuya Hashimoto

IPC分类号： H01M10/0567 ,  H01M10/42 ,  H01M10/0525

CPC分类号： H01M10/0567 ,  H01M2/345 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

摘要： The present invention provides a sealed lithium secondary battery in which redox shuttle reactions of an aromatic compound that is an overcharge inhibitor are inhibited, and the aromatic compound decomposes appropriately, and a desired amount of gas can be generated more stably than in conventional instances, even in high-temperature environments. In the sealed lithium secondary battery (100), an electrode assembly (80) and an electrolyte are accommodated in a battery case (50) that is provided with a current interrupt device (30). The electrolyte comprises a compound that is capable of suppressing drops in viscosity of the electrolyte as a result of a rise in temperature in a temperature region up to 100° C., and an aromatic compound capable of generating hydrogen gas when a predetermined battery voltage is exceeded.

摘要翻译： 本发明提供一种密封的锂二次电池，其中抑制了作为过充电抑制剂的芳族化合物的氧化还原穿梭反应，并且芳族化合物适当地分解，并且与常规情况相比可以更稳定地产生所需量的气体，甚至 在高温环境中。 在密封的锂二次电池（100）中，电极组件（80）和电解质容纳在设置有电流中断装置（30）的电池壳体（50）中。 该电解质包含能够抑制由于温度上升到100℃而导致的电解液粘度降低的化合物，以及当预定的电池电压为 超过了

公开(公告)号：US09806336B2

公开(公告)日：2017-10-31

申请号：US14429583

申请日：2012-09-21

申请人： Tatsuya Hashimoto ,  Yusuke Fukumoto ,  Keisuke Ohara ,  Yuji Yokoyama

发明人： Tatsuya Hashimoto ,  Yusuke Fukumoto ,  Keisuke Ohara ,  Yuji Yokoyama

IPC分类号： H01M4/36 ,  H01M10/05 ,  H01M4/13 ,  H01M4/139 ,  H01M2/34 ,  H01M10/0525 ,  H01M4/02

CPC分类号： H01M4/366 ,  H01M2/345 ,  H01M4/13 ,  H01M4/139 ,  H01M10/05 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

摘要： Provided is a positive electrode for nonaqueous electrolyte secondary batteries including a positive electrode mixture layer formed of a positive electrode mixture paste containing a positive electrode active material. The positive electrode active material has a particle diameter of 2 μm or more and less than 7 μm. The positive electrode mixture layer includes a first mixture layer in which a maximum diameter of pores formed between particles of the positive electrode active material is more than 1.0 μm and 5.0 μm or less, and a second mixture layer in which a maximum diameter of the pores is 1.0 μm or less. The second mixture layer is arranged closer to the current collector than the first mixture layer. A ratio of a thickness of the first mixture layer to a thickness of the second mixture layer is more than 0.1 and 1.0 or less.

公开(公告)号：US20150255786A1

公开(公告)日：2015-09-10

申请号：US14429583

申请日：2012-09-21

申请人： Tatsuya HASHIMOTO ,  Yusuke FUKUMOTO ,  Keisuke OHARA ,  Yuji YOKOYAMA

发明人： Tatsuya Hashimoto ,  Yusuke Fukumoto ,  Keisuke Ohara ,  Yuji Yokoyama

IPC分类号： H01M4/36 ,  H01M10/05

CPC分类号： H01M4/366 ,  H01M2/345 ,  H01M4/13 ,  H01M4/139 ,  H01M10/05 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

摘要： Provided is a positive electrode for nonaqueous electrolyte secondary batteries including a positive electrode mixture layer formed of a positive electrode mixture paste containing a positive electrode active material. The positive electrode active material has a particle diameter of 2 μm or more and less than 7 μm. The positive electrode mixture layer includes a first mixture layer in which a maximum diameter of pores formed between particles of the positive electrode active material is more than 1.0 μm and 5.0 μm or less, and a second mixture layer in which a maximum diameter of the pores is 1.0 μm or less. The second mixture layer is arranged closer to the current collector than the first mixture layer. A ratio of a thickness of the first mixture layer to a thickness of the second mixture layer is more than 0.1 and 1.0 or less.

摘要翻译： 本发明提供一种非水电解质二次电池用正极，其包括由含有正极活性物质的正极混合物糊形成的正极合剂层。 正极活性物质的粒径为2μm以上且小于7μm。 正极复合层包括第一混合层，其中在正极活性物质的颗粒之间形成的孔的最大直径大于1.0μm和5.0μm以下，第二混合层，其中孔的最大直径 为1.0μm以下。 第二混合物层比第一混合物层更靠近集电体布置。 第一混合物层的厚度与第二混合物层的厚度的比例大于0.1和1.0以下。

公开(公告)号：US20150221951A1

公开(公告)日：2015-08-06

申请号：US14426799

申请日：2012-09-10

申请人： Tatsuya Hashimoto ,  Keisuke Ohara ,  Yuji Yokoyama ,  Yusuke Fukumoto

发明人： Tatsuya Hashimoto ,  Keisuke Ohara ,  Yuji Yokoyama ,  Yusuke Fukumoto

IPC分类号： H01M4/62 ,  H01M10/052

CPC分类号： H01M4/62 ,  H01M4/13 ,  H01M4/139 ,  H01M4/621 ,  H01M4/622 ,  H01M10/052 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

摘要： This invention provides a lithium secondary battery that comprises a positive electrode comprising a positive electrode active material layer and a negative electrode comprising a negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are placed to face each other. The negative electrode active material layer has an area A comprising a non-positive-electrode-facing portion that does not face the positive electrode active material layer. The area A comprises a negative electrode active material, a hot-melt binder and a temperature-sensitive thickener. The hot-melt binder has a melting point and the temperature-sensitive thickener has a gelation temperature both in a range of 45° C. to 100° C.

摘要翻译： 本发明提供一种锂二次电池，其包括正极，其包括正极活性物质层和包含负极活性物质层的负极。 将正极活性物质层和负极活性物质层配置成彼此相对。 负极活性物质层具有包含不与正极活性物质层相对的非正极对向部的区域A. 区域A包括负极活性材料，热熔粘合剂和温度敏感增稠剂。 热熔粘合剂具有熔点，并且温度敏感性增稠剂的凝胶化温度均在45℃至100℃的范围内。

公开(公告)号：US10020511B2

公开(公告)日：2018-07-10

申请号：US14426799

申请日：2012-09-10

申请人： Tatsuya Hashimoto ,  Keisuke Ohara ,  Yuji Yokoyama ,  Yusuke Fukumoto

发明人： Tatsuya Hashimoto ,  Keisuke Ohara ,  Yuji Yokoyama ,  Yusuke Fukumoto

IPC分类号： H01M4/62 ,  H01M10/052 ,  H01M4/13 ,  H01M4/139

CPC分类号： H01M4/62 ,  H01M4/13 ,  H01M4/139 ,  H01M4/621 ,  H01M4/622 ,  H01M10/052 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

摘要： This invention provides a lithium secondary battery that comprises a positive electrode comprising a positive electrode active material layer and a negative electrode comprising a negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are placed to face each other. The negative electrode active material layer has an area A comprising a non-positive-electrode-facing portion that does not face the positive electrode active material layer. The area A comprises a negative electrode active material, a hot-melt binder and a temperature-sensitive thickener. The hot-melt binder has a melting point and the temperature-sensitive thickener has a gelation temperature both in a range of 45° C. to 100° C.

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。

公开(公告)号：US08187755B2

公开(公告)日：2012-05-29

申请号：US12160973

申请日：2008-02-29

申请人： Masaya Ugaji ,  Keisuke Ohara ,  Kazuhiro Watanabe

发明人： Masaya Ugaji ,  Keisuke Ohara ,  Kazuhiro Watanabe

IPC分类号： H01M4/76 ,  H01M4/13 ,  H01M4/58 ,  B05D5/12

CPC分类号： H01M4/70 ,  H01G9/016 ,  H01G9/058 ,  H01G11/26 ,  H01G11/28 ,  H01G11/50 ,  H01G11/70 ,  H01G11/86 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M10/052 ,  H01M2004/021 ,  Y02E60/13 ,  Y10T156/10

摘要： Having a current collector having a concave portion and a convex portion at least on one side, and a columnar body formed on the convex portion of the current collector, the columnar body contains an active material for inserting and extracting lithium ions bonding at least with oxygen, and the oxygen content ratio of the active material of the columnar body becomes smaller as going away from the interface of the current collector.

摘要翻译： 具有至少在一侧具有凹部和凸部的集电体和形成在集电体的凸部上的柱状体，柱状体包含用于插入和取出至少与氧结合的锂离子的活性物质 柱状体的活性物质的氧含量比从集电体界面变小。

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。

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。