公开(公告)号：US09537139B2

公开(公告)日：2017-01-03

申请号：US13814069

申请日：2011-08-03

申请人： Naokage Tanaka ,  Akira Inaba ,  Keiichiro Uenae ,  Masayuki Yamada ,  Kazunobu Matsumoto

发明人： Naokage Tanaka ,  Akira Inaba ,  Keiichiro Uenae ,  Masayuki Yamada ,  Kazunobu Matsumoto

IPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/485 ,  H01M4/587 ,  H01M4/525 ,  H01M10/052

CPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/364 ,  H01M4/38 ,  H01M4/485 ,  H01M4/525 ,  H01M4/587 ,  H01M10/052 ,  Y02E60/122

摘要： [Objectives] The present invention provides a non-aqueous secondary battery in which a material containing Si and O as constituent elements is used in a negative electrode. The present invention provides a non-aqueous secondary battery having good charge discharge cycle characteristics, and suppressing the battery swelling associated with the charge and the discharge. Also, the present invention relates to a negative electrode that can provide the non-aqueous secondary battery. [Solution] The negative electrode includes a negative electrode active material, including a composite of a material containing Si and O as constitution elements (atom ratio x of O to Si is 0.5≦x≦1.5) in combination with a carbon material, and graphite. The graphite has an average particle diameter dg (μm) of 4 to 20 μm. The material containing Si and O as constitution elements has an average particle diameter ds (μm) of 1 μm or more. The ratio ds/dg (i.e., ds to dg) is 0.05 to 1. The material containing Si and O as constitution elements has a crystallite diameter of 50 nm or less, the crystallite diameter is calculated from a half width at a (220) plane of Si obtained by an X-ray diffraction method, using Scherrer Formula. In 100 mass % of the composite of the material containing Si and O as constitution elements, and the carbon material, a ratio of the material containing Si and O as constitution elements is 70 to 95 mass %.

摘要翻译： [目的]本发明提供一种非水二次电池，其中在负极中使用含有Si和O作为构成元素的材料。 本发明提供一种具有良好的充电放电循环特性并抑制与充电和放电相关的电池膨胀的非水二次电池。 另外，本发明涉及能够提供非水二次电池的负极。 [解决方案]负极包括负极活性物质，其包含作为构成元素的含Si和O的材料（O与Si的原子比x为0.5≤x≤1.5）与碳材料的组合，以及石墨 。 石墨的平均粒径dg（μm）为4〜20μm。 含有Si和O作为构成元素的材料的平均粒径ds（μm）为1μm以上。 比率ds / dg（即ds至dg）为0.05〜1。作为构成元素的含有Si和O的材料的微晶直径为50nm以下，微晶直径由（220）的半值宽度计算， 使用Scherrer公式通过X射线衍射法获得的Si平面。 在作为构成元素的含有Si和O的材料的复合材料的100质量％中，作为构成要素的含有Si和O的材料的比例为70〜95质量％。

公开(公告)号：US08481212B2

公开(公告)日：2013-07-09

申请号：US13511084

申请日：2011-09-12

申请人： Naokage Tanaka ,  Akira Inaba ,  Masayuki Yamada ,  Masayuki Yoshiya

发明人： Naokage Tanaka ,  Akira Inaba ,  Masayuki Yamada ,  Masayuki Yoshiya

IPC分类号： H01M4/13

CPC分类号： H01M4/131 ,  C01B33/113 ,  H01M4/133 ,  H01M4/366 ,  H01M4/483 ,  H01M4/587 ,  H01M10/052 ,  Y02E60/122 ,  Y02T10/7011

摘要： The non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator, the negative electrode contains a negative electrode active material containing a graphitic carbon material and a composite in which a carbon coating layer is formed on a surface of a core material containing Si and O as constituent elements, the composite has a carbon content of 10 to 30 mass %, the composite has an intensity ratio I510/I1343 of a peak intensity I510 at 510 cm−1 derived from Si to a peak intensity I1343 at 1343 cm−1 derived from carbon of 0.25 or less when a Raman spectrum of the composite is measured at a laser wavelength of 532 nm, and the half-width of the (111) diffraction peak of Si is less than 3.0° when the crystallite size of an Si phase contained in the core material is measured by X-ray diffractometry using CuKα radiation.

摘要翻译： 本发明的非水系二次电池包括正极，负极，非水电解质和隔膜，所述负极含有含有石墨碳材料的负极活性物质和碳 在含有Si和O作为构成元素的芯材的表面上形成涂层，该复合材料的碳含量为10〜30质量％，复合材料的强度比I510 / I1343为510cm -1的峰强度I510， 1，衍射自Si的峰值强度I1343为1343cm -1，当在532nm的激光波长下测量复合物的拉曼光谱时，（111）衍射峰的半值 当通过使用CuKalpha辐射的X射线衍射法测量芯材中包含的Si相的微晶尺寸时，Si的含量小于3.0°。

公开(公告)号：US20120288742A1

公开(公告)日：2012-11-15

申请号：US13511084

申请日：2011-09-12

申请人： Naokage Tanaka ,  Akira Inaba ,  Masayuki Yamada ,  Masayuki Yoshiya

发明人： Naokage Tanaka ,  Akira Inaba ,  Masayuki Yamada ,  Masayuki Yoshiya

IPC分类号： H01M4/133 ,  H01M2/16 ,  H01M10/0564 ,  H01M4/134 ,  H01M4/48

CPC分类号： H01M4/131 ,  C01B33/113 ,  H01M4/133 ,  H01M4/366 ,  H01M4/483 ,  H01M4/587 ,  H01M10/052 ,  Y02E60/122 ,  Y02T10/7011

摘要： The non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator, the negative electrode contains a negative electrode active material containing a graphitic carbon material and a composite in which a carbon coating layer is formed on a surface of a core material containing Si and O as constituent elements, the composite has a carbon content of 10 to 30 mass %, the composite has an intensity ratio I510/I1343 of a peak intensity I510 at 510 cm−1 derived from Si to a peak intensity I1343 at 1343 cm−1 derived from carbon of 0.25 or less when a Raman spectrum of the composite is measured at a laser wavelength of 532 nm, and the half-width of the (111) diffraction peak of Si is less than 3.0° when the crystallite size of an Si phase contained in the core material is measured by X-ray diffractometry using CuKα radiation.

摘要翻译： 本发明的非水系二次电池包括正极，负极，非水电解质和隔膜，所述负极含有含有石墨碳材料的负极活性物质和碳 在含有Si和O作为构成元素的芯材的表面上形成涂层，该复合材料的碳含量为10〜30质量％，复合材料的强度比I510 / I1343为510cm -1的峰强度I510， 1，衍射自Si的峰值强度I1343为1343cm -1，当在532nm的激光波长下测量复合物的拉曼光谱时，（111）衍射峰的半值 当通过使用CuKα辐射的X射线衍射测量芯材中包含的Si相的微晶尺寸时，Si的含量小于3.0°。

公开(公告)号：US20130136988A1

公开(公告)日：2013-05-30

申请号：US13814069

申请日：2011-08-03

申请人： Naokage Tanaka ,  Akira Inaba ,  Keiichiro Uenae ,  Masayuki Yamada ,  Kazunobu Matsumoto

发明人： Naokage Tanaka ,  Akira Inaba ,  Keiichiro Uenae ,  Masayuki Yamada ,  Kazunobu Matsumoto

IPC分类号： H01M4/131 ,  H01M4/134 ,  H01M4/133

CPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/364 ,  H01M4/38 ,  H01M4/485 ,  H01M4/525 ,  H01M4/587 ,  H01M10/052 ,  Y02E60/122

摘要： [Objectives] The present invention provides a non-aqueous secondary battery in which a material containing Si and O as constituent elements is used in a negative electrode. The present invention provides a non-aqueous secondary battery having good charge discharge cycle characteristics, and suppressing the battery swelling associated with the charge and the discharge. Also, the present invention relates to a negative electrode that can provide the non-aqueous secondary battery. [Solution] The negative electrode includes a negative electrode active material, including a composite of a material containing Si and O as constitution elements (atom ratio x of O to Si is 0.5≦x≦1.5) in combination with a carbon material, and graphite. The graphite has an average particle diameter dg(μm) of 4 to 20 μm. The material containing Si and O as constitution elements has an average particle diameter ds(μm) of 1 μm or more. The ratio ds/dg (i.e., ds to dg) is 0.05 to 1. The material containing Si and O as constitution elements has a crystallite diameter of 50 nm or less, the crystallite diameter is calculated from a half width at a (220) plane of Si obtained by an X-ray diffraction method, using Scherrer Formula. In 100 mass % of the composite of the material containing Si and O as constitution elements, and the carbon material, a ratio of the material containing Si and O as constitution elements is 70 to 95 mass %.

摘要翻译： [目的]本发明提供一种非水二次电池，其中在负极中使用含有Si和O作为构成元素的材料。 本发明提供一种具有良好的充电放电循环特性并抑制与充电和放电相关的电池膨胀的非水二次电池。 另外，本发明涉及能够提供非水二次电池的负极。 [解决方案]负极包括负极活性材料，其包含与碳材料组合的作为构成元素（O与Si的原子比x为0.5≤x≤1.5）的包含Si和O的材料的复合材料，以及石墨 。 该石墨的平均粒径dg（mum）为4〜20μm。 作为构成元素的含有Si和O的材料的平均粒径ds（mum）为1μm以上。 比率ds / dg（即ds至dg）为0.05〜1。作为构成元素的含有Si和O的材料的微晶直径为50nm以下，微晶直径由（220）的半值宽度计算， 使用Scherrer公式通过X射线衍射法获得的Si平面。 在作为构成元素的含有Si和O的材料的复合材料的100质量％中，作为构成要素的含有Si和O的材料的比例为70〜95质量％。