公开(公告)号：US20120219868A1

公开(公告)日：2012-08-30

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： H01M10/056

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：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。