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：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：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：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。

公开(公告)号：US20100028775A1

公开(公告)日：2010-02-04

申请号：US12444939

申请日：2007-11-15

申请人： Katsuji Emura ,  Takashi Uemura ,  Hideaki Awata ,  Kentaro Yoshida ,  Mitsuyasu Ogawa ,  Rikizo Ikuta

发明人： Katsuji Emura ,  Takashi Uemura ,  Hideaki Awata ,  Kentaro Yoshida ,  Mitsuyasu Ogawa ,  Rikizo Ikuta

IPC分类号： H01M4/02

CPC分类号： H01M2/1673 ,  H01M6/40 ,  H01M10/052 ,  H01M10/0585

摘要： The battery of the invention has a positive-electrode layer 20, a negative-electrode layer 50, and an electrolytic layer 40 through which ionic conduction is performed between the two electrode layers. In this battery, the positive-electrode layer 20 and the negative-electrode layer 50 are laminated with each other and an insulating layer 30 is placed between the positive-electrode layer 20 and the negative-electrode layer 50. The insulating layer 30 has an area smaller than that of one of the positive-electrode layer 20 and the negative-electrode layer 50 and larger than that of the other. There is no place where the positive-electrode layer 20 and the negative-electrode layer 50 face each other through only the electrolytic layer 40. Even when the electrolytic layer 40 has a pinhole, the presence of the insulating layer 30 between the positive-electrode layer 20 and the negative-electrode layer 50 can suppress short-circuiting between the positive- and negative-electrode layers.

摘要翻译： 本发明的电池具有在两个电极层之间进行离子传导的正极层20，负极层50和电解质层40。 在该电池中，正极层20和负极层50彼此层叠，并且在正极层20和负极层50之间设置绝缘层30.绝缘层30具有 面积比正极层20和负极层50的面积小。 正电极层20和负电极层50不存在仅通过电解质层40彼此面对的位置。即使当电解质层40具有针孔时，绝缘层30在正极 层20和负极层50可以抑制正极和负极层之间的短路。

公开(公告)号：US08142923B2

公开(公告)日：2012-03-27

申请号：US12444939

申请日：2007-11-15

申请人： Katsuji Emura ,  Takashi Uemura ,  Hideaki Awata ,  Kentaro Yoshida ,  Mitsuyasu Ogawa ,  Rikizo Ikuta

发明人： Katsuji Emura ,  Takashi Uemura ,  Hideaki Awata ,  Kentaro Yoshida ,  Mitsuyasu Ogawa ,  Rikizo Ikuta

IPC分类号： H01M6/12 ,  H01M2/18

CPC分类号： H01M2/1673 ,  H01M6/40 ,  H01M10/052 ,  H01M10/0585

摘要： The battery of the invention has a positive-electrode layer 20, a negative-electrode layer 50, and an electrolytic layer 40 through which ionic conduction is performed between the two electrode layers. In this battery, the positive-electrode layer 20 and the negative-electrode layer 50 are laminated with each other and an insulating layer 30 is placed between the positive-electrode layer 20 and the negative-electrode layer 50. The insulating layer 30 has an area smaller than that of one of the positive-electrode layer 20 and the negative-electrode layer 50 and larger than that of the other. There is no place where the positive-electrode layer 20 and the negative-electrode layer 50 face each other through only the electrolytic layer 40. Even when the electrolytic layer 40 has a pinhole, the presence of the insulating layer 30 between the positive-electrode layer 20 and the negative-electrode layer 50 can suppress short-circuiting between the positive- and negative-electrode layers.

摘要翻译： 本发明的电池具有在两个电极层之间进行离子传导的正极层20，负极层50和电解质层40。 在该电池中，正极层20和负极层50彼此层叠，并且在正极层20和负极层50之间设置绝缘层30.绝缘层30具有 面积比正极层20和负极层50的面积小。 正电极层20和负电极层50不存在仅通过电解质层40彼此面对的位置。即使当电解质层40具有针孔时，绝缘层30在正极 层20和负极层50可以抑制正极和负极层之间的短路。

公开(公告)号：US09083057B2

公开(公告)日：2015-07-14

申请号：US13976152

申请日：2011-12-28

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

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

IPC分类号： H01M10/0562 ,  H01M10/052 ,  H01M10/0585 ,  H01M10/04

CPC分类号： H01M10/0562 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0585 ,  H01M2300/0068 ,  Y02E60/122 ,  Y02P70/54

摘要： A positive-electrode body 1 is prepared that includes a positive-electrode active-material layer 12 including a powder-molded body, and a positive-electrode-side solid-electrolyte layer (PSE layer) 13 that is amorphous and formed on the positive-electrode active-material layer 12 by a vapor-phase process. A negative-electrode body 2 is prepared that includes a negative-electrode active-material layer 22 including a powder-molded body, and a negative-electrode-side solid-electrolyte layer (NSE layer) 23 that is amorphous and formed on the negative-electrode active-material layer 22 by a vapor-phase process. The positive-electrode body 1 and the negative-electrode body 2 are bonded together by subjecting the electrode bodies 1 and 2 being arranged such that the solid-electrolyte layers 13 and 23 of the electrode bodies 1 and 2 are in contact with each other, to a heat treatment under application of a pressure to crystallize the PSE layer 13 and the NSE layer 23.

摘要翻译： 准备正极体1，该正极体1包括具有粉末成型体的正极活性物质层12和非阳极形成的正极侧固体电解质层（PSE层）13 - 通过气相法电极活性物质层12。 制作负极体2，该负极体2具有由负极活性物质层22构成的负极活性物质层22和负极侧固体电解质层（NSE层）23，负极侧固体电解质层23是负极 - 通过气相法电极活性物质层22。 正极体1和负极体2通过使电极体1和2被布置成使得电极体1和2的固体电解质层13和23彼此接触而接合在一起， 在施加压力下使PSE层13和NSE层23结晶的热处理。