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;