公开(公告)号：US20090068563A1

公开(公告)日：2009-03-12

申请号：US12208497

申请日：2008-09-11

申请人： Ryoko Kanda ,  Nobuhiro Ota ,  Takashi Uemura ,  Kentaro Yoshida ,  Mitsuyasu Ogawa

发明人： Ryoko Kanda ,  Nobuhiro Ota ,  Takashi Uemura ,  Kentaro Yoshida ,  Mitsuyasu Ogawa

IPC分类号： H01M6/18

CPC分类号： H01M10/0525 ,  H01M4/13 ,  H01M4/485 ,  H01M10/0562 ,  H01M10/0585 ,  Y10T29/49115

摘要： A lithium battery includes a substrate, a positive electrode layer, a negative electrode layer, and a sulfide solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, the positive electrode layer, the negative electrode layer, and the sulfide solid electrolyte layer being provided on the substrate. In this lithium battery, the positive electrode layer is formed by a vapor-phase deposition method, and a buffer layer that suppresses nonuniformity of distribution of lithium ions near the interface between the positive electrode layer and the sulfide solid electrolyte layer is provided between the positive electrode layer and the sulfide solid electrolyte layer. As the buffer layer, a lithium-ion conductive oxide, in particular, LixLa(2-x)/3TiO3 (x=0.1 to 0.5), Li7+xLa3Zr2O12+(x/2) (−5≦×≦3, preferably −2≦×≦2), or LiNbO3 is preferably used.

摘要翻译： 锂电池包括设置在正极层和负极层之间的基板，正极层，负极层和硫化物固体电解质层，正极层，负极层和硫化物固体电解质 层设置在基板上。 在该锂电池中，通过气相沉积法形成正极层，并且在正极层和硫化物固体电解质层之间的界面附近抑制锂离子分布的不均匀性的缓冲层设置在阳极 电极层和硫化物固体电解质层。 作为缓冲层，特别是LixLa（2-x）/ 3TiO3（x = 0.1〜0.5），Li7 + xLa3Zr2O12 +（x / 2）（-5≤x≤3）的锂离子传导性氧化物 -2 <= x <= 2），或者优选使用LiNbO 3。

公开(公告)号：US20100273056A1

公开(公告)日：2010-10-28

申请号：US12742495

申请日：2008-10-29

申请人： Ryoko Kanda ,  Nobuhiro Ota ,  Takashi Uemura ,  Kentaro Yoshida ,  Mitsuyasu Ogawa

发明人： Ryoko Kanda ,  Nobuhiro Ota ,  Takashi Uemura ,  Kentaro Yoshida ,  Mitsuyasu Ogawa

IPC分类号： H01M4/52 ,  H01M4/58 ,  H01M4/82

CPC分类号： H01M10/052 ,  H01M4/0421 ,  H01M4/13 ,  H01M4/131 ,  H01M4/366 ,  H01M10/0436 ,  H01M10/0562 ,  H01M2300/0071 ,  Y10T29/49108

摘要： A lithium battery that contains a solid electrolyte but has a high capacity is provided. A lithium battery 1 includes: a positive-electrode layer 13; a negative-electrode layer 14; and a sulfide solid electrolyte layer (SE layer 15) provided between the layers 13 and 14. The lithium battery 1 has a positive-electrode covering layer 16 and a buffer layer 17 formed between the layers 13 and 15 for suppressing nonuniformity of distribution of lithium ions in a region near the interface between the layers 13 and 15. In the battery 1, the positive-electrode covering layer 16 contains LiCoO2 whereas the positive-electrode layer 13 does not contain LiCoO2.

摘要翻译： 提供含有固体电解质但具有高容量的锂电池。 锂电池1包括：正极层13; 负极层14; 以及设置在层13和14之间的硫化物固体电解质层（SE层15）。锂电池1具有形成在层13和15之间的正电极覆盖层16和缓冲层17，用于抑制锂的分布不均匀 在层13和15之间的界面附近的区域中的离子。在电池1中，正极覆盖层16含有LiCoO 2，而正极层13不含LiCoO 2。

公开(公告)号：US20120183834A1

公开(公告)日：2012-07-19

申请号：US13497059

申请日：2010-08-05

申请人： Ryoko Kanda ,  Kentaro Yoshida ,  Takashi Uemura ,  Nobuhiro Ota ,  Mitsuyasu Ogawa

发明人： Ryoko Kanda ,  Kentaro Yoshida ,  Takashi Uemura ,  Nobuhiro Ota ,  Mitsuyasu Ogawa

IPC分类号： H01M10/052

CPC分类号： H01M10/0525 ,  H01M2/1686 ,  H01M4/525 ,  H01M10/0562 ,  H01M10/4235 ,  H01M2004/028 ,  H01M2300/0094

摘要： A solid-electrolyte battery is provided that includes a LiNbO3 film serving as a buffer layer between a positive-electrode active material and a solid electrolyte and has a sufficiently low electrical resistance. The solid-electrolyte battery includes a positive-electrode layer, a negative-electrode layer, and a solid-electrolyte layer that conducts lithium ions between the electrode layers, wherein a buffer layer that is a LiNbO3 film is disposed between a positive-electrode active material and a solid electrolyte, and a composition ratio (Li/Nb) of Li to Nb in the LiNbO3 film satisfies 0.93≦Li/Nb≦0.98. The buffer layer may be disposed between the positive-electrode layer and the solid-electrolyte layer or on the surface of a particle of the positive-electrode active material. The buffer layer may have a thickness of 2 nm to 1 μm.

摘要翻译： 提供了一种固体电解质电池，其包括用作正极活性材料和固体电解质之间的缓冲层的LiNbO 3膜，并且具有足够低的电阻。 固体电解质电池包括在电极层之间传导锂离子的正极层，负极层和固体电解质层，其中作为LiNbO 3膜的缓冲层设置在正极活性物质 材料和固体电解质，并且LiNbO 3膜中的Li与Nb的组成比（Li / Nb）分别为0.93＆lt; ll; Li / Nb＆lt; 1E; 0.98。 缓冲层可以设置在正极层和固体电解质层之间或者在正极活性物质的粒子的表面上。 缓冲层可以具有2nm至1μm的厚度。

公开(公告)号：US08197970B2

公开(公告)日：2012-06-12

申请号：US12208497

申请日：2008-09-11

申请人： Ryoko Kanda ,  Nobuhiro Ota ,  Takashi Uemura ,  Kentaro Yoshida ,  Mitsuyasu Ogawa

发明人： Ryoko Kanda ,  Nobuhiro Ota ,  Takashi Uemura ,  Kentaro Yoshida ,  Mitsuyasu Ogawa

IPC分类号： H01M4/13 ,  H01M4/58 ,  H01M2/16 ,  H01M2/14 ,  H01M2/18 ,  H01M4/82 ,  H01M6/00

CPC分类号： H01M10/0525 ,  H01M4/13 ,  H01M4/485 ,  H01M10/0562 ,  H01M10/0585 ,  Y10T29/49115

摘要： A lithium battery includes a substrate, a positive electrode layer, a negative electrode layer, and a sulfide solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, the positive electrode layer, the negative electrode layer, and the sulfide solid electrolyte layer being provided on the substrate. In this lithium battery, the positive electrode layer is formed by a vapor-phase deposition method, and a buffer layer that suppresses nonuniformity of distribution of lithium ions near the interface between the positive electrode layer and the sulfide solid electrolyte layer is provided between the positive electrode layer and the sulfide solid electrolyte layer. As the buffer layer, a lithium-ion conductive oxide, in particular, LixLa(2−x)/3TiO3 (x=0.1 to 0.5), Li7+xLa3Zr2O12+(x/2) (−5≦x≦3, preferably −2≦x≦2), or LiNbO3 is preferably used.

摘要翻译： 锂电池包括设置在正极层和负极层之间的基板，正极层，负极层和硫化物固体电解质层，正极层，负极层和硫化物固体电解质 层设置在基板上。 在该锂电池中，通过气相沉积法形成正极层，并且在正极层和硫化物固体电解质层之间的界面附近抑制锂离子分布的不均匀性的缓冲层设置在阳极 电极层和硫化物固体电解质层。 作为缓冲层，特别是锂离子传导性氧化物，特别是LixLa（2-x）/ 3TiO3（x = 0.1〜0.5），Li7 + xLa3Zr2O12 +（x / 2）（-5＆lt; lE; x＆nlE; 3，优选-2＆ ; x和nlE; 2）或LiNbO 3。

公开(公告)号：US20100279176A1

公开(公告)日：2010-11-04

申请号：US12743287

申请日：2009-06-29

申请人： Mitsuyasu Ogawa ,  Nobuhiro Ota ,  Takashi Uemura ,  Ryoko Kanda ,  Kentaro Yoshida

发明人： Mitsuyasu Ogawa ,  Nobuhiro Ota ,  Takashi Uemura ,  Ryoko Kanda ,  Kentaro Yoshida

IPC分类号： H01M4/131 ,  H01M4/04

CPC分类号： H01M10/0525 ,  H01M4/131 ,  H01M4/366 ,  H01M4/525 ,  H01M4/62 ,  H01M4/624 ,  H01M10/0562 ,  Y02T10/7011

摘要： There is provided a nonaqueous electrolyte secondary battery in which lithium ions can move smoothly between a positive electrode and a solid electrolyte layer, the nonaqueous electrolyte secondary battery having improved internal resistance.The nonaqueous electrolyte secondary battery includes a positive electrode 1, a negative electrode 2, and a solid electrolyte layer 3 arranged between the positive and negative electrodes. The positive electrode 1 includes a positive-electrode sintered body 10 formed by firing a powder containing a positive-electrode active material and includes a cover layer 11 arranged on a surface of the positive-electrode sintered body 10 adjacent to the solid electrolyte layer 3, the cover layer containing a positive-electrode active material. The cover layer 11 contains a compound having a layered rock-salt structure. Preferably, the direction of the c-axis of the crystal of the compound is not perpendicular to the surface of the positive-electrode sintered body. More preferably, a buffer layer 4 composed of LiNbO3 is arranged between the positive electrode 1 and the solid electrolyte layer 3, the buffer layer being configured to reduce interface resistance.

摘要翻译： 提供一种非水电解质二次电池，其中锂离子可以在正电极和固体电解质层之间平稳移动，非水电解质二次电池具有改善的内阻。 非水电解质二次电池包括正极1，负极2和布置在正极和负极之间的固体电解质层3。 正极1包括通过焙烧包含正极活性物质的粉末而形成的正极烧结体10，并且包括布置在与固体电解质层3相邻的正极烧结体10的表面上的覆盖层11， 所述覆盖层含有正极活性物质。 覆盖层11含有具有层状岩盐结构的化合物。 优选地，化合物的晶体的c轴方向不垂直于正极烧结体的表面。 更优选地，在正极1和固体电解质层3之间配置有由LiNbO 3组成的缓冲层4，缓冲层被配置为降低界面电阻。

公开(公告)号：US20120052383A1

公开(公告)日：2012-03-01

申请号：US13319096

申请日：2010-03-12

申请人： Nobuhiro Ota ,  Takashi Uemura ,  Mitsuyasu Ogawa ,  Ryoko Kanda

发明人： Nobuhiro Ota ,  Takashi Uemura ,  Mitsuyasu Ogawa ,  Ryoko Kanda

IPC分类号： H01M4/70 ,  H01M4/04 ,  H01M4/64

CPC分类号： H01M4/0404 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M4/70

摘要： A positive-electrode member for producing a nonaqueous electrolyte battery having a high discharge capacity and an excellent cycle characteristic, and a method for producing the positive-electrode member are provided. The positive-electrode member includes a positive-electrode collector composed of a metal; and a positive-electrode active-material layer (positive-electrode active-material portion) 10B that allows for electron transfer between the positive-electrode collector and the positive-electrode active-material layer 10B. The positive-electrode active-material layer 10B includes positive-electrode active-material particles 1 and a solid electrolyte 2 that fixes the particles 1. The contours of the particles 1 that are next to each other partially conform to each other. To produce such a positive-electrode member, a raw-material sol obtained by mixing positive-electrode active-material particles with substances that turn into a solid electrolyte through polycondensation by heating is applied to a positive-electrode collector, and the resultant member is heated and subsequently pressed.

摘要翻译： 提供一种具有高放电容量和优异的循环特性的非水电解质电池的制造用正极部件和制造正极部件的方法。 正极构件包括由金属构成的正极集电体; 以及允许正极集电体和正极活性物质层10B之间的电子转移的正极活性物质层（正极活性物质部）10B。 正极活性物质层10B包括固定颗粒1的正极活性物质颗粒1和固体电解质2.彼此相邻的颗粒1的轮廓部分地彼此匹配。 为了制造这样的正极构件，将正极活性物质粒子与通过加热缩聚成固体电解质的物质混合而得到的原料溶胶被施加到正极集电体，所得到的构件是 加热并随后按压。

公开(公告)号：US20120177998A1

公开(公告)日：2012-07-12

申请号：US13497063

申请日：2010-10-01

申请人： Mitsuyasu Ogawa ,  Takashi Uemura ,  Kentaro Yoshida ,  Ryoko Kanda

发明人： Mitsuyasu Ogawa ,  Takashi Uemura ,  Kentaro Yoshida ,  Ryoko Kanda

IPC分类号： H01M10/0562 ,  H01M4/131

CPC分类号： H01M10/0525 ,  H01M4/13 ,  H01M4/131 ,  H01M4/366 ,  H01M10/0562 ,  H01M2004/021 ,  Y02T10/7011

摘要： Provided is a nonaqueous electrolyte battery having a high charge-discharge cycle capability in which the battery capacity is less likely to decrease even after repeated charge and discharge. The nonaqueous electrolyte battery includes a positive-electrode layer 1, a negative-electrode layer 2, a solid electrolyte layer 3 interposed between the positive-electrode layer 1 and the negative-electrode layer 2, and a boundary layer 4 between the negative-electrode layer 2 and the solid electrolyte layer 3, the boundary layer 4 maintaining the bond between the negative-electrode layer 2 and the solid electrolyte layer 3. The negative-electrode layer 2 at least contains Li. The boundary layer 4 at least contains a group 14 element in the periodic table. The boundary layer 4 has a thickness of 50 nm or less.

摘要翻译： 提供一种具有高充放电循环能力的非水电解质电池，其中电池容量即使在重复充放电之后也不太可能降低。 非水电解质电池包括正极层1，负极层2，置于正极层1和负极层2之间的固体电解质层3以及负极层之间的边界层4 层2和固体电解质层3，边界层4保持负极层2和固体电解质层3之间的结合。负极层2至少含有Li。 边界层4至少包含周期表中的第14族元素。 边界层4的厚度为50nm以下。

公开(公告)号：US20130059209A1

公开(公告)日：2013-03-07

申请号：US13698150

申请日：2011-05-07

申请人： Nobuhiro Ota ,  Mitsuyasu Ogawa ,  Ryoko Kanda

发明人： Nobuhiro Ota ,  Mitsuyasu Ogawa ,  Ryoko Kanda

IPC分类号： H01M10/0562 ,  H01M4/04 ,  B82Y30/00

CPC分类号： H01M4/131 ,  H01M4/364 ,  H01M4/366 ,  H01M4/485 ,  H01M4/5815 ,  H01M10/052 ,  Y10T29/49204

摘要： Provided is a positive-electrode body for a nonaqueous-electrolyte battery in which formation of high-resistance layers at the contact interfaces between positive-electrode active-material particles and solid-electrolyte particles is suppressed so that an increase in the interface resistance is suppressed. A positive-electrode body 1 for a nonaqueous-electrolyte battery according to the present invention includes a mixture of sulfide-solid-electrolyte particles 11 and covered positive-electrode active-material particles 10 in which surfaces of positive-electrode active-material particles 10a are covered with cover layers 10b having Li-ion conductivity. The cover layers 10b are formed of an amorphous oxide having oxygen deficiency. The cover layers 10b have oxygen deficiency and, as a result, Li-ion conductivity and electron conductivity that are sufficient for charge and discharge of the battery can be stably ensured in the cover layers 10b.

摘要翻译： 本发明提供一种非水电解质电池用正极体，其在正极活性物质粒子和固体电解质粒子之间的接触界面形成高电阻层，抑制界面电阻的增加 。 根据本发明的非水电解质电池用正极体1包括硫化物 - 固体电解质颗粒11和被覆正极活性物质颗粒10的混合物，其中正极活性物质颗粒10a 被具有Li离子传导性的覆盖层10b覆盖。 覆盖层10b由缺氧的无定形氧化物形成。 覆盖层10b具有缺氧性，结果，可以在覆盖层10b中稳定地确保足以充电和放电的锂离子传导性和电子传导性。

公开(公告)号：US20120231345A1

公开(公告)日：2012-09-13

申请号：US13384948

申请日：2010-07-06

申请人： Mitsuyasu Ogawa ,  Ryoko Kanda ,  Nobuhiro Ota

发明人： Mitsuyasu Ogawa ,  Ryoko Kanda ,  Nobuhiro Ota

IPC分类号： H01M10/0562

CPC分类号： H01M10/052 ,  H01M10/0562 ,  H01M2300/0068 ,  H01M2300/0094 ,  Y02T10/7011

摘要： Provided are a nonaqueous electrolyte battery that can suppress internal short circuits due to growth of dendrites from a negative electrode and has high charge-discharge cycle capability; and a solid electrolyte with which the charge-discharge cycle capability of a nonaqueous electrolyte battery can be improved by using the solid electrolyte as a solid electrolyte layer of the nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode, and a solid electrolyte layer interposed between these electrodes, wherein the solid electrolyte layer includes a high-sulfur-content portion containing 10 mol % or more of elemental sulfur. The solid electrolyte for a nonaqueous electrolyte battery includes a high-sulfur-content portion containing 10 mol % or more of elemental sulfur.

摘要翻译： 提供一种非水电解质电池，其能够抑制由于负极生长树突而导致的内部短路，并且具有高的充放电循环能力; 以及通过使用固体电解质作为非水电解质电池的固体电解质层，能够提高非水电解质电池的充放电循环能力的固体电解质。 非水电解质电池包括正电极，负极和置于这些电极之间的固体电解质层，其中固体电解质层包括含有10mol％以上元素硫的高硫含量部分。 用于非水电解质电池的固体电解质包括含有10mol％或更多元素硫的高硫含量部分。

公开(公告)号：US20130302698A1

公开(公告)日：2013-11-14

申请号：US13980082

申请日：2012-01-18

申请人： Kazuhiro Goto ,  Takashi Uemura ,  Kentaro Yoshida ,  Tomoharu Takeyama ,  Ryoko Kanda

发明人： Kazuhiro Goto ,  Takashi Uemura ,  Kentaro Yoshida ,  Tomoharu Takeyama ,  Ryoko Kanda

IPC分类号： H01M4/485 ,  H01M4/583

CPC分类号： H01M4/485 ,  H01M4/131 ,  H01M4/583 ,  H01M4/625 ,  H01M10/0562 ,  H01M2220/20

摘要： Provided is a nonaqueous electrolyte battery that has a high capacity and a high volume power density and can have an enhanced charge-discharge cycle capability. The nonaqueous electrolyte battery includes a positive-electrode layer, a negative-electrode layer, and a solid-electrolyte layer disposed between these layers. The negative-electrode layer contains a powder of a negative-electrode active material and a powder of a solid electrolyte. In the negative-electrode active material, a charge-discharge volume change ratio is 1% or less and the powder has an average particle size of 8 μm or less. The solid-electrolyte layer is formed by a vapor-phase process. Examples of the negative-electrode active material having a charge-discharge volume change ratio of 1% or less include Li4Ti5O12 and non-graphitizable carbon.

摘要翻译： 提供具有高容量和高体积功率密度并且可以具有增强的充放电循环能力的非水电解质电池。 非水电解质电池包括正极层，负极层和设置在这些层之间的固体 - 电解质层。 负极层含有负极活性物质粉末和固体电解质粉末。 在负极活性物质中，充放电体积变化率为1％以下，粉末的平均粒径为8μm以下。 固体电解质层通过气相法形成。 充电 - 放电体积变化率为1％以下的负极活性物质的实例包括Li 4 Ti 5 O 12和不可石墨化碳。