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公开(公告)号：US20100143583A1
公开(公告)日：2010-06-10
申请号：US12705078
申请日：2010-02-12
IPC分类号： B05D5/12
CPC分类号： H01M4/661 , H01M4/0426 , H01M4/1395 , H01M4/38 , H01M4/386 , H01M10/052 , Y10T29/49115
摘要： A negative active material thin film containing silicon as a main component is formed on a collector. A composition gradient layer, in which a composition distribution of a main component element of the collector and silicon is varied smoothly, is formed in the vicinity of the interface between the collector and the negative active material thin film. The composition gradient layer contains at least one kind of third element selected from W, Mo, Cr, Co, Fe, Mn, Ni, and P, in addition to the elements contained in the collector and the elements contained in the negative active material thin film. The third element irregularizes the atomic arrangement at the interface between the collector and the negative active material thin film. Therefore, even when the negative active material absorbs/desorbs ions during charging/discharging, thereby allowing silicon particles in the negative active material to expand/contract, the strain at the interface involved in the expansion/contraction of the silicon particles is alleviated, and peeling at the interface between the negative active material thin film and the collector is suppressed. Consequently, cycle characteristics are enhanced.
摘要翻译： 在集电体上形成以硅为主要成分的负极活性物质薄膜。 在集电体和负极活性物质薄膜的界面附近形成组分梯度层，其中集电体和硅的主要成分元素的组成分布平滑变化。 组成梯度层除了包含在集电体中的元素和负极活性物质中所含的元素以外，还含有选自W，Mo，Cr，Co，Fe，Mn，Ni和P中的至少一种第三元素 电影。 第三元件在收集器和负极活性材料薄膜之间的界面处使原子排列不规则。 因此，即使当负极活性物质在充放电期间吸收/解吸离子时，由于使负极活性物质中的硅粒子膨胀/收缩，因此可以减轻涉及硅粒子膨胀/收缩的界面的应变， 抑制负极活性物质薄膜与集电体之间的界面剥离。 因此，循环特性得到提高。
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公开(公告)号：US20050118502A1
公开(公告)日：2005-06-02
申请号：US10979637
申请日：2004-11-01
IPC分类号： B05D5/12 , H01M4/04 , H01M4/1395 , H01M4/38 , H01M4/66 , H01M10/052 , H01M10/36 , H01M4/58
CPC分类号： H01M4/661 , H01M4/0426 , H01M4/1395 , H01M4/38 , H01M4/386 , H01M10/052 , Y10T29/49115
摘要： A negative active material thin film containing silicon as a main component is formed on a collector. A composition gradient layer, in which a composition distribution of a main component element of the collector and silicon is varied smoothly, is formed in the vicinity of the interface between the collector and the negative active material thin film. The composition gradient layer contains at least one kind of third element selected from W, Mo, Cr, Co, Fe, Mn, Ni, and P, in addition to the elements contained in the collector and the elements contained in the negative active material thin film. The third element irregularizes the atomic arrangement at the interface between the collector and the negative active material thin film. Therefore, even when the negative active material absorbs/desorbs ions during charging/discharging, thereby allowing silicon particles in the negative active material to expand/contract, the strain at the interface involved in the expansion/contraction of the silicon particles is alleviated, and peeling at the interface between the negative active material thin film and the collector is suppressed. Consequently, cycle characteristics are enhanced.
摘要翻译： 在集电体上形成以硅为主要成分的负极活性物质薄膜。 在集电体和负极活性物质薄膜的界面附近形成组分梯度层，其中集电体和硅的主要成分元素的组成分布平滑变化。 组成梯度层除了包含在集电体中的元素和负极活性物质中所含的元素以外，还含有选自W，Mo，Cr，Co，Fe，Mn，Ni和P中的至少一种第三元素 电影。 第三元件在收集器和负极活性材料薄膜之间的界面处使原子排列不规则。 因此，即使当负极活性物质在充放电期间吸收/解吸离子时，由于使负极活性物质中的硅粒子膨胀/收缩，因此可以减轻涉及硅粒子膨胀/收缩的界面的应变， 抑制负极活性物质薄膜与集电体之间的界面剥离。 因此，循环特性得到提高。
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公开(公告)号：US20050118503A1
公开(公告)日：2005-06-02
申请号：US10982056
申请日：2004-11-04
IPC分类号： B05D5/12 , H01M4/02 , H01M4/04 , H01M4/134 , H01M4/1395 , H01M10/00 , H01M10/04 , H01M10/0525 , H01M10/36 , H01M4/58
CPC分类号： H01M4/04 , C23C14/0068 , C23C14/0078 , C23C14/0084 , C23C14/042 , C23C14/16 , C23C14/165 , C23C14/226 , C23C14/352 , C23C14/562 , C23C16/4585 , C23C26/00 , C23C30/00 , H01M4/0421 , H01M4/134 , H01M4/1395 , H01M4/366 , H01M4/667 , H01M10/0525 , H01M2004/021 , Y10T29/49115
摘要： A negative active material thin film provided on a collector layer directly or via an underlying layer has a multi-layered configuration including at least two silicon thin films containing silicon as a main component. Because of this, even when the thickness of the negative active material thin film is increased, the increase in thickness of one silicon thin film can be prevented by increasing the number of silicon thin films. Thus, the diameter of silicon particles substantially in an inverse truncated cone shape is not enlarged in the silicon thin film. Accordingly, in an energy device having a thin film mainly containing silicon as a negative active material, even when the thickness of the negative active material layer is increased to obtain a larger capacity, cycle characteristics are not degraded.
摘要翻译： 直接或经由下层设置在集电极层上的负极活性物质薄膜具有包括至少两个以硅为主要成分的硅薄膜的多层结构。 因此，即使当负极活性物质薄膜的厚度增加时，也可以通过增加硅薄膜的数量来防止一个硅薄膜的厚度增加。 因此，在硅薄膜中，基本上呈倒圆锥形状的硅粒子的直径不会增大。 因此，在具有主要含有硅作为负极活性物质的薄膜的能量装置中，即使负极活性物质层的厚度增加以获得较大的容量，也不会降低循环特性。
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公开(公告)号：US07816032B2
公开(公告)日：2010-10-19
申请号：US10982056
申请日：2004-11-04
IPC分类号： H01M4/58
CPC分类号： H01M4/04 , C23C14/0068 , C23C14/0078 , C23C14/0084 , C23C14/042 , C23C14/16 , C23C14/165 , C23C14/226 , C23C14/352 , C23C14/562 , C23C16/4585 , C23C26/00 , C23C30/00 , H01M4/0421 , H01M4/134 , H01M4/1395 , H01M4/366 , H01M4/667 , H01M10/0525 , H01M2004/021 , Y10T29/49115
摘要： A negative active material thin film provided on a collector layer directly or via an underlying layer has a multi-layered configuration including at least two silicon thin films containing silicon as a main component. Because of this, even when the thickness of the negative active material thin film is increased, the increase in thickness of one silicon thin film can be prevented by increasing the number of silicon thin films. Thus, the diameter of silicon particles substantially in an inverse truncated cone shape is not enlarged in the silicon thin film. Accordingly, in an energy device having a thin film mainly containing silicon as a negative active material, even when the thickness of the negative active material layer is increased to obtain a larger capacity, cycle characteristics are not degraded.
摘要翻译： 直接或经由下层设置在集电极层上的负极活性物质薄膜具有包括至少两个以硅为主要成分的硅薄膜的多层结构。 因此，即使当负极活性物质薄膜的厚度增加时，也可以通过增加硅薄膜的数量来防止一个硅薄膜的厚度增加。 因此，在硅薄膜中，基本上呈倒圆锥形状的硅粒子的直径不会增大。 因此，在具有主要含有硅作为负极活性物质的薄膜的能量装置中，即使负极活性物质层的厚度增加以获得较大的容量，也不会降低循环特性。
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公开(公告)号：US20050118504A1
公开(公告)日：2005-06-02
申请号：US10985543
申请日：2004-11-10
IPC分类号： B05D5/12 , H01M4/04 , H01M4/1395 , H01M4/38 , H01M4/66 , H01M10/052 , H01M10/36 , H01M4/58
CPC分类号： H01M4/661 , H01M4/0426 , H01M4/1395 , H01M4/38 , H01M4/386 , H01M10/052 , Y10T29/49115
摘要： An auxiliary film-forming source containing a main component element of a collector and a negative active material film-forming source for forming a negative active material thin film are placed adjacent to each other so that parts of film-forming particles from the respective sources are mixed with each other. The collector is moved relatively from the auxiliary film-forming source side to the negative active material film-forming source side, whereby a negative active material thin film containing silicon as a main component is formed on the collector by a vacuum film-forming process. A composition gradient layer, in which a composition distribution of a main component element of the collector and silicon constituting the negative active material is varied smoothly, is formed at the interface between the negative active material thin film and the collector. Even when the silicon particles in the negative active material expand/contract during charging/discharging, the composition gradient layer alleviates the strain involved in the expansion/contraction of the silicon particles, so that peeling at the interface between the negative active material thin film and the collector is suppressed, and the adhesion strength is enhanced. Consequently, cycle characteristics are enhanced.
摘要翻译： 包含集电体的主要成分元素的辅助成膜源和用于形成负极活性物质薄膜的负极活性物质成膜源彼此相邻放置，使得来自各个源的成膜颗粒的部分为 相互混合 集电体从辅助成膜源侧相对移动到负极活性物质成膜源侧，由此通过真空成膜工艺在集电体上形成含有硅作为主要成分的负极活性物质薄膜。 在负极活性物质薄膜和集电体之间的界面处形成组成梯度层，其中集电体的主要成分元素的组成分布和构成负极活性物质的硅平滑地变化。 即使当负极活性物质中的硅颗粒在充电/放电期间膨胀/收缩时，组成梯度层也减轻了涉及硅颗粒膨胀/收缩的应变，从而在负极活性物质薄膜和 集电体被抑制，粘合强度提高。 因此，循环特性得到提高。
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6.发明申请公开(公告)号：US20050287439A1
公开(公告)日：2005-12-29
申请号：US10508341
申请日：2003-03-17
IPC分类号： H01M4/131 , H01M4/134 , H01M4/38 , H01M4/52 , H01M4/525 , H01M10/052 , H01M10/0587 , H01M10/36 , H01M4/58
CPC分类号： H01M4/134 , H01M4/131 , H01M4/364 , H01M4/38 , H01M4/386 , H01M4/387 , H01M4/525 , H01M10/052 , H01M10/0587
摘要： The present invention relates to a negative electrode material for non-aqueous electrolyte secondary batteries, characterized in that the negative electrode material comprises a composite particle including solid phases A and B, the solid phase A being dispersed in the solid phase B, and the ratio (IA/IB) of the maximum diffracted X-ray intensity (IA) attributed to the solid phase A to the maximum diffracted X-ray intensity (IB) attributed to the solid phase B satisfies 0.001≦IA/IB≦0.1, in terms of a diffraction line obtained by a wide-angle X-ray diffraction measurement of the composite particle. This negative electrode material is capable of suppressing of pulverization thereof due to repeated cycles. Further, the use of this negative electrode material allows production of a non-aqueous electrolyte secondary battery having a high capacity and an excellent cycle life characteristic.
摘要翻译： 非水电解质二次电池用负极材料技术领域本发明涉及一种非水电解质二次电池用负极材料，其特征在于，所述负极材料包括固相A和固体B的复合粒子，固相A分散在固相B中， （固体A）的最大衍射X射线强度（I A A）的最大衍射峰值（I / A / B） 归因于固相B的X射线强度（I B B）满足0.001≤I≤A
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7.发明授权公开(公告)号：US08361658B2
公开(公告)日：2013-01-29
申请号：US12775185
申请日：2010-05-06
CPC分类号： H01M4/134 , H01M4/131 , H01M4/364 , H01M4/38 , H01M4/386 , H01M4/387 , H01M4/525 , H01M10/052 , H01M10/0587
摘要： A negative electrode material for non-aqueous electrolyte secondary batteries, characterized in that the negative electrode material comprises a composite particle including solid phases A and B, the solid phase A being dispersed in the solid phase B, and the ratio (IA/IB) of the maximum diffracted X-ray intensity (IA) attributed to the solid phase A to the maximum diffracted X-ray intensity (IB) attributed to the solid phase B satisfies 0.001≦IA/IB≦0.1, in terms of a diffraction line obtained by a wide-angle X-ray diffraction measurement of the composite particle.
摘要翻译： 一种非水电解质二次电池用负极材料，其特征在于，所述负极材料包括固相A和B的复合粒子，所述固相A分散在固相B中，所述比例（IA / IB） 归因于固相B的固相A的最大衍射X射线强度（IA）与归于固相B的最大衍射X射线强度（IB）的折射率相对于衍射线满足0.001≤n1E; IA / IB＆N1; 0.1 通过复合粒子的广角X射线衍射测定得到。
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8.发明申请公开(公告)号：US20100216033A1
公开(公告)日：2010-08-26
申请号：US12775185
申请日：2010-05-06
CPC分类号： H01M4/134 , H01M4/131 , H01M4/364 , H01M4/38 , H01M4/386 , H01M4/387 , H01M4/525 , H01M10/052 , H01M10/0587
摘要： A negative electrode material for non-aqueous electrolyte secondary batteries, characterized in that the negative electrode material comprises a composite particle including solid phases A and B, the solid phase A being dispersed in the solid phase B, and the ratio (IA/IB) of the maximum diffracted X-ray intensity (IA) attributed to the solid phase A to the maximum diffracted X-ray intensity (IB) attributed to the solid phase B satisfies 0.001≦IA/IB≦0.1, in terms of a diffraction line obtained by a wide-angle X-ray diffraction measurement of the composite particle.
摘要翻译： 一种非水电解质二次电池用负极材料，其特征在于，所述负极材料包括固相A和B的复合粒子，所述固相A分散在固相B中，所述比例（IA / IB） 归因于固相B的固相A的最大衍射X射线强度（IA）与归于固相B的最大衍射X射线强度（IB）的折射率相对于衍射线满足0.001≤n1E; IA / IB＆N1; 0.1 通过复合粒子的广角X射线衍射测定得到。
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9.发明授权公开(公告)号：US07736806B2
公开(公告)日：2010-06-15
申请号：US10508341
申请日：2003-03-17
CPC分类号： H01M4/134 , H01M4/131 , H01M4/364 , H01M4/38 , H01M4/386 , H01M4/387 , H01M4/525 , H01M10/052 , H01M10/0587
摘要： A negative electrode material for non-aqueous electrolyte secondary batteries, characterized in that the negative electrode material comprises a composite particle including solid phases A and B, the solid phase A being dispersed in the solid phase B, and the ratio (IA/IB) of the maximum diffracted X-ray intensity (IA) attributed to the solid phase A to the maximum diffracted X-ray intensity (IB) attributed to the solid phase B satisfies 0.001≦IA/IB≦0.1, in terms of a diffraction line obtained by a wide-angle X-ray diffraction measurement of the composite particle.
摘要翻译： 一种非水电解质二次电池用负极材料，其特征在于，所述负极材料包括固相A和B的复合粒子，所述固相A分散在固相B中，所述比例（IA / IB） 归因于固相B的固相A的最大衍射X射线强度（IA）与归于固相B的最大衍射X射线强度（IB）的折射率相对于衍射线满足0.001≤n1E; IA / IB＆N1; 0.1 通过复合粒子的广角X射线衍射测定得到。
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10.发明申请Negative electrode material for non-aqueous electrolyte secondary battery, method for producing the same and non-aqueous electrolyte secondary battery 审中-公开非水电解质二次电池用负极材料及其制造方法以及非水电解质二次电池公开(公告)号：US20070122708A1
公开(公告)日：2007-05-31
申请号：US11642472
申请日：2006-12-20
IPC分类号： H01M4/58
CPC分类号： H01M4/38 , H01M4/0402 , H01M4/366 , H01M4/386 , H01M4/387 , H01M4/42 , H01M4/58 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： A negative electrode material for a non-aqueous electrolyte secondary battery of the present invention is a negative electrode material for a non-aqueous electrolyte secondary battery capable of reversibly absorbing and desorbing lithium, and it includes a solid phase A and a solid phase B that have different compositions and has a structure in which the surface around the solid phase A is entirely or partly covered by the solid phase B. The solid phase A contains at least one element selected from the group consisting of silicon, tin and zinc, and the solid phase B contains the above-described at least one element contained in the solid phase A, and at least one element selected from the group consisting of Group IIA elements, transition elements, Group IIB elements, Group IIIB elements and Group IVB elements. The atomic arrangement and structure (e.g., crystal structure or amorphous structure) of at least one solid phase selected from the group consisting of the solid phase A and the solid phase B are controlled. It is possible to provide a negative electrode material for a non-aqueous electrolyte secondary battery in which deterioration due to charge/discharge cycle characteristics is suppressed, by using such a material as a negative electrode material for a non-aqueous electrolyte secondary battery. It is also possible to provide a non-aqueous electrolyte secondary battery having excellent charge/discharge cycle characteristics, by including such a negative electrode material for a non-aqueous electrolyte secondary battery.
摘要翻译： 本发明的非水电解质二次电池用负极材料是能够可逆地吸收和解吸锂的非水电解质二次电池用负极材料，具有固相A和固相B， 具有不同的组成并且具有其中固相A周围的表面完全或部分被固相B覆盖的结构。固相A含有选自硅，锡和锌中的至少一种元素，并且 固相B包含上述固相A中所含的至少一种元素，以及选自由IIA族元素，过渡元素，IIB族元素，IIIB族元素和IVB族元素组成的组中的至少一种元素。 控制选自固相A和固相B的至少一种固相的原子排列和结构（例如，晶体结构或无定形结构）。 通过使用这种材料作为非水电解质二次电池的负极材料，可以提供通过抑制由于充放电循环特性而导致的劣化的非水电解质二次电池用负极材料。 通过包括这种非水电解质二次电池用负极材料，也可以提供充放电循环特性优异的非水电解质二次电池。
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