公开(公告)号：US07923148B2

公开(公告)日：2011-04-12

申请号：US11385836

申请日：2006-03-22

申请人： Hidekazu Yamamoto ,  Keiji Saisho ,  Yoshio Kato ,  Shigeki Matsuta

发明人： Hidekazu Yamamoto ,  Keiji Saisho ,  Yoshio Kato ,  Shigeki Matsuta

IPC分类号： H01M4/60 ,  H01M4/58

CPC分类号： H01M10/052 ,  H01M2/16 ,  H01M2/1673 ,  H01M2/1686 ,  H01M4/0426 ,  H01M4/13 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/62 ,  H01M10/0567

摘要： Disclosed is a nonaqueous electrolyte secondary battery which has a negative electrode containing silicon as a negative active material, a positive electrode containing a positive active material, a nonaqueous electrolyte and a separator. Characteristically, an additive which retards oxidation of silicon during operation of the battery is contained either in an interior or surface portion of the positive electrode, or in an interior or surface portion of the negative electrode, or in an interior or surface portion of the separator.

摘要翻译： 公开了一种非水电解质二次电池，其具有含有硅作为负极活性物质的负极，含有正极活性物质的正极，非水电解质和隔膜。 特征在于，在电池操作期间阻止硅的氧化的添加剂包含在正极的内部或表面部分中，或者包含在负极的内部或表面部分中，或者包含在隔板的内部或表面部分中 。

公开(公告)号：US20100081062A1

公开(公告)日：2010-04-01

申请号：US12522231

申请日：2008-02-05

申请人： Takanobu Chiga ,  Keiji Saisho ,  Ryo Mogi ,  Osamu Omae

发明人： Takanobu Chiga ,  Keiji Saisho ,  Ryo Mogi ,  Osamu Omae

IPC分类号： H01M2/14 ,  H01M6/16

CPC分类号： H01M10/0525 ,  H01M4/131 ,  H01M4/133 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0028 ,  H01M2300/0034 ,  H01M2300/0037 ,  H01M2300/004 ,  Y02E60/122

摘要： The present invention provides a non-aqueous electrolyte secondary battery wherein a reaction between a non-aqueous electrolyte and an electrode is suppressed and decrease in battery capacity under high temperature is restricted, so that long time excellent battery characteristics can be obtained. A non-aqueous solvent of the non-aqueous electrolyte contains: chain fluorinated carboxylic acid ester represented by the formula R1-CH2—COO—R2 where R1 represents hydrogen or alkyl group and R2 represents alkyl group and the sum of the carbon numbers of R1 and R2 is 3 or less, and in the case that R1 is hydrogen, at least one part of hydrogen in R2 is replaced with fluorine, and, in the case that R1 is alkyl group, at least one part of hydrogen in R1 and/or R2 is replaced with fluorine; and a film forming chemical compound decomposed in the range of +1.0 to 3.0 V based on an equilibrium potential between metal lithium and lithium ion.

摘要翻译： 本发明提供了一种非水电解质二次电池，其中非水电解质和电极之间的反应被抑制，并且在高温下的电池容量的降低受到限制，从而可以获得长时间的优异的电池特性。 非水电解质的非水溶剂包含：由式R1-CH2-COO-R2表示的链状氟化羧酸酯，其中R1表示氢或烷基，R2表示烷基，R1的碳数之和 R2为3以下，在R1为氢的情况下，R2中的至少一部分氢被氟取代，在R1为烷基的情况下，R1和/ 或R 2被氟取代; 并且基于金属锂和锂离子之间的平衡电位，在+1.0至3.0V的范围内分解成膜化合物。

公开(公告)号：US20070072087A1

公开(公告)日：2007-03-29

申请号：US11527452

申请日：2006-09-27

申请人： Hidekazu Yamamoto ,  Keiji Saisho

发明人： Hidekazu Yamamoto ,  Keiji Saisho

IPC分类号： H01M10/36 ,  H01M4/58

CPC分类号： H01M10/0568 ,  H01M4/134 ,  H01M4/386 ,  H01M10/052 ,  H01M10/0567 ,  H01M2004/027 ,  H01M2300/0025

摘要： A non-aqueous electrolyte secondary battery using silicon as negative electrode active material and containing carbon dioxide in a non-aqueous electrolyte is provided that minimizes gas generation during storage in a charged state and improves charge-discharge cycle performance. The non-aqueous electrolyte secondary battery is provided with a negative electrode containing silicon as a negative electrode active material, a positive electrode, and a non-aqueous electrolyte containing electrolyte salts and a solvent. The non-aqueous electrolyte contains carbon dioxide, and the electrolyte salts include LiBF4 and another electrolyte salt that is less consumed relative to the LiBF4 during charge-discharge cycling.

摘要翻译： 提供一种使用硅作为负极活性物质并在非水电解质中含有二氧化碳的非水电解质二次电池，其在充电状态下储存期间的气体产生最小化并且提高充放电循环性能。 该非水电解质二次电池设置有含有作为负极活性物质的硅的负极，正极和含有电解质盐和溶剂的非水电解质。 非水电解质含有二氧化碳，并且电解质盐包括LiBF 4+和在充放电循环期间相对于LiBF 4 S较少消耗的另一种电解质盐。

公开(公告)号：US06818354B2

公开(公告)日：2004-11-16

申请号：US10024393

申请日：2001-12-21

申请人： Keiji Saisho ,  Hiroshi Watanabe ,  Ikuro Nakane ,  Satoshi Narukawa ,  Norio Tsujioka

发明人： Keiji Saisho ,  Hiroshi Watanabe ,  Ikuro Nakane ,  Satoshi Narukawa ,  Norio Tsujioka

IPC分类号： H01M0218

CPC分类号： H01M10/0525 ,  H01M2/18 ,  H01M10/0583

摘要： In a non-aqueous secondary cell having a positive electrode, a negative electrode, a nonaqueous electrolyte, a separator interposed between the positive electrode and the negative electrode, the positive electrode having a positive electrode active material including a chemical compound capable of reversibly intercalating lithium and the negative electrode having a negative electrode active material including a material capable of reversibly intercalating lithium, the separator has through holes formed therein for passing lithium dendrites therethrough.

摘要翻译： 在具有正极，负极，非水电解质，介于正极和负极之间的隔膜的非水电解槽中，正极具有含有可逆地插入锂的化合物的正极活性物质 负极具有含有可逆地嵌入锂的材料的负极活性物质，隔膜具有形成于其中的通孔，用于使锂枝晶通过。

公开(公告)号：US20130004837A1

公开(公告)日：2013-01-03

申请号：US13607186

申请日：2012-09-07

申请人： Hidekazu YAMAMOTO ,  Keiji SAISHO ,  Yoshio KATO ,  Shigeki MATSUTA

发明人： Hidekazu YAMAMOTO ,  Keiji SAISHO ,  Yoshio KATO ,  Shigeki MATSUTA

IPC分类号： H01M4/62 ,  H01M10/056

CPC分类号： H01M10/052 ,  H01M2/16 ,  H01M2/1673 ,  H01M2/1686 ,  H01M4/0426 ,  H01M4/13 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/62 ,  H01M10/0567

摘要： Disclosed is a nonaqueous electrolyte secondary battery which has a negative electrode containing silicon as a negative active material, a positive electrode containing a positive active material, a nonaqueous electrolyte and a separator. Characteristically, an additive which retards oxidation of silicon during operation of the battery is contained either in an interior or surface portion of the positive electrode, in an interior or surface portion of the negative electrode, or in an interior or surface portion of the separator.

摘要翻译： 公开了一种非水电解质二次电池，其具有含有硅作为负极活性物质的负极，含有正极活性物质的正极，非水电解质和隔膜。 特征在于，在电池操作期间阻止硅的氧化的添加剂包含在正极的内部或表面部分，负极的内部或表面部分中，或者包含在隔板的内部或表面部分中。

公开(公告)号：US20070072074A1

公开(公告)日：2007-03-29

申请号：US11527608

申请日：2006-09-27

申请人： Hidekazu Yamamoto ,  Keiji Saisho

发明人： Hidekazu Yamamoto ,  Keiji Saisho

IPC分类号： H01M10/40 ,  H01M4/58

CPC分类号： H01M4/134 ,  H01M4/0426 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

摘要： A non-aqueous electrolyte secondary battery using silicon as negative electrode active material and containing fluoroethylene carbonate in a non-aqueous electrolyte is provided that minimizes gas generation during storage in a charged state and improves charge-discharge cycle performance. The non-aqueous electrolyte secondary battery is provided with a negative electrode containing silicon as a negative electrode active material, a positive electrode, and a non-aqueous electrolyte containing electrolyte salts and a solvent. The non-aqueous electrolyte contains fluoroethylene carbonate, and the electrolyte salts include LiBF4 and another electrolyte salt that is less consumed relative to LiBF4 during charge-discharge cycling.

摘要翻译： 提供了一种使用硅作为负极活性物质并在非水电解质中含有氟代碳酸亚乙酯的非水电解质二次电池，其使得在充电状态下储存期间的气体产生最小化并且改善了充放电循环性能。 该非水电解质二次电池设置有含有作为负极活性物质的硅的负极，正极和含有电解质盐和溶剂的非水电解质。 非水电解质含有氟代碳酸亚乙酯，并且电解质盐包括LiBF 4+和在充放电循环期间相对于LiBF 4 S消耗的另一种电解质盐。

公开(公告)号：US08673504B2

公开(公告)日：2014-03-18

申请号：US13463001

申请日：2012-05-03

申请人： Keiji Saisho ,  Hidekazu Yamamoto ,  Masahiro Takehara

发明人： Keiji Saisho ,  Hidekazu Yamamoto ,  Masahiro Takehara

IPC分类号： H01M6/18

CPC分类号： H01M10/0525 ,  H01M4/13 ,  H01M10/0566 ,  H01M10/0567

摘要： The objective of the present invention is to prevent deterioration and expanding of anode active material and to improve charge-discharge cycle characteristics in a non-aqueous electrolyte secondary battery comprising an anode of which current collector has thereon a thin layer of an anode active material containing a metal. To solve this problem, in a non-aqueous electrolyte secondary battery wherein a thin layer of anode active material containing a metal which absorbs and discharges lithium is formed on a current collector and the thin layer of the anode active material is divided into columns by a gap formed along the thickness thereof, a compound represented by the following formula is contained in the non-aqueous electrolyte. A-N═C═O In the above formula, A represents an element or a group other than hydrogen.

摘要翻译： 本发明的目的是为了防止负极活性物质的劣化和膨胀，并且提高非水电解质二次电池的充放电循环特性，该非水电解质二次电池包括集电体上具有负极活性物质的薄层的阳极， 金属。 为了解决这个问题，在非水电解质二次电池中，在集电体上形成含有吸收和放出​​锂的金属的负极活性物质的薄层，阳极活性物质的薄层被分成列 沿其厚度形成的间隙由下式表示的化合物包含在非水电解质中。 A-N = C = O在上式中，A表示除氢以外的元素或基团。

公开(公告)号：US08206853B2

公开(公告)日：2012-06-26

申请号：US11917374

申请日：2006-06-23

申请人： Keiji Saisho ,  Hidekazu Yamamoto ,  Masahiro Takehara

发明人： Keiji Saisho ,  Hidekazu Yamamoto ,  Masahiro Takehara

IPC分类号： H01M6/18

CPC分类号： H01M10/0525 ,  H01M4/13 ,  H01M10/0566 ,  H01M10/0567

摘要： The objective of the present invention is to prevent deterioration and expanding of anode active material and to improve charge-discharge cycle characteristics in a non-aqueous electrolyte secondary battery comprising an anode of which current collector has thereon a thin layer of an anode active material containing a metal. To solve this problem, in a non-aqueous electrolyte secondary battery wherein a thin layer of anode active material containing a metal which absorbs and discharges lithium is formed on a current collector and the thin layer of the anode active material is divided into columns by a gap formed along the thickness thereof, a compound represented by the following formula is contained in the non-aqueous electrolyte. A-N═C═O In the above formula, A represents an element or a group other than hydrogen.

摘要翻译： 本发明的目的是为了防止负极活性物质的劣化和膨胀，并且提高非水电解质二次电池的充放电循环特性，该非水电解质二次电池包括集电体上具有负极活性物质的薄层的阳极， 金属。 为了解决这个问题，在非水电解质二次电池中，在集电体上形成含有吸收和放出​​锂的金属的负极活性物质的薄层，阳极活性物质的薄层被分成列 沿其厚度形成的间隙由下式表示的化合物包含在非水电解质中。 A-N = C = O在上式中，A表示氢以外的元素或基团。

公开(公告)号：US20090311609A1

公开(公告)日：2009-12-17

申请号：US11917374

申请日：2006-06-23

申请人： Keiji Saisho ,  Hidekazu Yamamoto ,  Masahiro Takehara

发明人： Keiji Saisho ,  Hidekazu Yamamoto ,  Masahiro Takehara

IPC分类号： H01M10/26 ,  H01M6/16 ,  H01M6/14

CPC分类号： H01M10/0525 ,  H01M4/13 ,  H01M10/0566 ,  H01M10/0567

摘要： The objective of the present invention is to prevent deterioration and expanding of anode active material and to improve charge-discharge cycle characteristics in a non-aqueous electrolyte secondary battery comprising an anode of which current collector has thereon a thin layer of an anode active material containing a metal. To solve this problem, in a non-aqueous electrolyte secondary battery wherein a thin layer of anode active material containing a metal which absorbs and discharges lithium is formed on a current collector and the thin layer of the anode active material is divided into columns by a gap formed along the thickness thereof, a compound represented by the following formula is contained in the non-aqueous electrolyte. A-N═C═O In the above formula, A represents an element or a group other than hydrogen.

摘要翻译： 本发明的目的是为了防止负极活性物质的劣化和膨胀，并且提高非水电解质二次电池的充放电循环特性，该非水电解质二次电池包括集电体上具有负极活性物质的薄层的阳极， 金属。 为了解决这个问题，在非水电解质二次电池中，在集电体上形成含有吸收和放出​​锂的金属的负极活性物质的薄层，阳极活性物质的薄层被分成列 沿其厚度形成的间隙由下式表示的化合物包含在非水电解质中。 A-N-C-O在上式中，A表示氢以外的元素或基团。

公开(公告)号：US20080081263A1

公开(公告)日：2008-04-03

申请号：US11905095

申请日：2007-09-27

申请人： Keiji Saisho ,  Masato Iwanaga ,  Takeshi Abe

发明人： Keiji Saisho ,  Masato Iwanaga ,  Takeshi Abe

IPC分类号： H01M10/40

CPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0587 ,  H01M2300/004

摘要： A nonaqueous electrolyte secondary battery is obtained in which a potential of a positive-electrode active material in a fully charged condition is 4.4-4.6 V versus metallic lithium and an Li content of the positive-electrode active material at the potential does not exceed 40% of an initial Li content, and which can show improved cycle characteristics and charge-discharge characteristics. The nonaqueous electrolyte secondary battery includes a positive electrode containing a positive-electrode active material, a negative electrode containing a negative-electrode active material, and a nonaqueous electrolyte, wherein a potential of the positive electrode active material in a fully charged condition is 4.4-4.6 V versus metallic lithium, an Li content of the Positive-electrode active material at the potential does not exceed 40% of the initial Li content, and the nonaqueous electrolyte contains an ethylene carbonate derivative represented by the following structural formula 1 wherein at least one of X and Y is a halogen;

摘要翻译： 获得了一种非水电解质二次电池，其中正电极活性材料在完全充电条件下的电位相对于金属锂为4.4-4.6V，并且正电极活性材料在该电势下的Li含量不超过40％ 的初始Li含量，并且可以显示改善的循环特性和充放电特性。 非水电解质二次电池包括含有正极活性物质的正极，含有负极活性物质的负极和非水电解质，其中，所述正极活性物质在充满电条件下的电位为4.4〜 4.6V对金属锂，电位下的正极活性物质的Li含量不超过初始Li含量的40％，非水电解质含有由以下结构式1表示的碳酸亚乙酯衍生物，其中至少一种 的X和Y是卤素;