公开(公告)号：US08501353B2

公开(公告)日：2013-08-06

申请号：US12890841

申请日：2010-09-27

Applicant: Tamae Moriwaka ,  Tatsuya Takahashi

Inventor： Tamae Moriwaka ,  Tatsuya Takahashi

IPC: H01M4/58 ,  H01M4/13

CPC classification number: H01M4/58 ,  H01M4/136 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/0585 ,  Y02E60/13

Abstract: An object is to improve characteristics of a power storage device and achieve a long lifetime. In the case where a lithium nitride is used for a negative electrode active material of a power storage device, a plurality of lithium nitride layers with different lithium concentrations are stacked. For example, in the case where a first lithium nitride layer and a second lithium nitride layer are stacked over a current collector, lithium is contained in the first lithium nitride layer at a lower concentration than lithium contained in the second lithium nitride layer. In this case, a concentration of a transition metal of the first lithium nitride layer is higher than a concentration of the transition metal of the second lithium nitride layer. Note that another alkali metal may be used instead of lithium.

Abstract translation: 一个目的是改善蓄电装置的特性并达到长寿命。 在使用氮化锂作为蓄电装置的负极活性物质的情况下，堆叠具有不同锂浓度的多个氮化锂层。 例如，在集电体上层叠第一氮化锂层和第二氮化锂层的情况下，在比第二氮化锂层中所含的锂浓度低的情况下，在第一氮化锂层中含有锂。 在这种情况下，第一氮化钛层的过渡金属的浓度高于第二氮化硼层的过渡金属的浓度。 注意，可以使用另一种碱金属代替锂。

公开(公告)号：US08343847B2

公开(公告)日：2013-01-01

申请号：US12575555

申请日：2009-10-08

Applicant: Masaki Koyama ,  Junpei Momo ,  Eiji Higa ,  Hiroaki Honda ,  Tamae Moriwaka ,  Akihisa Shimomura

Inventor： Masaki Koyama ,  Junpei Momo ,  Eiji Higa ,  Hiroaki Honda ,  Tamae Moriwaka ,  Akihisa Shimomura

IPC: H01L21/76

CPC classification number: H01L27/1266 ,  H01L21/02381 ,  H01L21/02422 ,  H01L21/02532 ,  H01L21/02683 ,  H01L21/02686 ,  H01L21/76254 ,  H01L27/1214 ,  H01L27/1274 ,  H01L29/66772

Abstract: To prevent, in the case of irradiating a single crystal semiconductor layer with a laser beam, an impurity element from being taken into the single crystal semiconductor layer at the time of laser irradiation. In a manufacturing method of an SOI substrate, a single crystal semiconductor substrate and a base substrate are prepared; an embrittlement region is formed in a region at a predetermined depth from a surface of the single crystal semiconductor substrate by irradiating the single crystal semiconductor substrate with accelerated ions; the single crystal semiconductor substrate and a base substrate are bonded to each other with an insulating layer interposed therebetween; a single crystal semiconductor layer is formed over the base substrate with the insulating layer interposed therebetween by heating the single crystal semiconductor substrate to cause separation using the embrittlement region as a boundary; an oxide film formed on the single crystal semiconductor layer is removed; and at least a surface of the single crystal semiconductor layer is melted by irradiating the surface of the single crystal semiconductor layer with a laser beam after the removal of the oxide film. The number of times the single crystal semiconductor layer is melted by the irradiation with the laser beam is one.

Abstract translation: 为了防止在用激光束照射单晶半导体层的情况下，在激光照射时将杂质元素摄入单晶半导体层。 在SOI衬底的制造方法中，制备单晶半导体衬底和基底衬底; 通过用加速的离子照射单晶半导体衬底，在单晶半导体衬底的表面的预定深度的区域中形成脆化区域; 单晶半导体衬底和基底衬底之间具有绝缘层而彼此接合; 通过加热单晶半导体衬底以使脆化区域作为边界进行分离，在基底衬底上形成绝缘层，形成单晶半导体层; 去除形成在单晶半导体层上的氧化膜; 并且在除去氧化膜之后，通过用激光束照射单晶半导体层的表面，使单晶半导体层的至少一个表面熔融。 单晶半导体层通过激光束的照射而熔化的次数是1。

公开(公告)号：US20110236753A1

公开(公告)日：2011-09-29

申请号：US13044172

申请日：2011-03-09

Applicant: Kazutaka KURIKI ,  Tamae MORIWAKA

Inventor： Kazutaka KURIKI ,  Tamae MORIWAKA

IPC: H01M4/58 ,  H01M4/26

CPC classification number: H01M4/134 ,  H01M4/0428 ,  H01M4/0471 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/661 ,  H01M4/662 ,  H01M4/667 ,  Y10T29/49108 ,  Y10T29/49115

Abstract: A secondary battery to be provided includes an electrode including silicon or a silicon compound, and the electrode includes, for example, a current collector formed using metal and a silicon film as an active material provided over the current collector. The hydrogen concentration in the silicon film of the electrode may be higher than or equal to 1.0×1018 cm−3 and lower than or equal to 1.0×1021 cm−3. Such a silicon film is formed over a current collector by a plasma CVD method or the like for example, and hydrogen is contained as little as possible in the silicon film, which is preferable. In order to contain hydrogen as little as possible in the silicon film, the silicon film may be formed over the current collector under a high temperature environment.

Abstract translation: 要提供的二次电池包括含硅或硅化合物的电极，并且该电极包括例如使用金属形成的集电体和设置在集电体上的活性材料的硅膜。 电极的硅膜中的氢浓度可以高于或等于1.0×1018cm-3且小于或等于1.0×1021cm-3。 这样的硅膜例如通过等离子体CVD法等在集电体上形成，并且在硅膜中尽可能少地含有氢，这是优选的。 为了在硅膜中尽可能少地含有氢，可以在高温环境下在集电体上形成硅膜。

公开(公告)号：US09590249B2

公开(公告)日：2017-03-07

申请号：US12987331

申请日：2011-01-10

Applicant: Tamae Moriwaka ,  Tatsuya Takahashi

Inventor： Tamae Moriwaka ,  Tatsuya Takahashi

IPC: H01M4/02 ,  H01M4/587 ,  H01M4/40 ,  H01M4/36 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/38 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0565 ,  H01M4/131

CPC classification number: H01M4/587 ,  H01M4/02 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/362 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/405 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0565 ,  H01M2300/0085 ,  Y02E60/122

Abstract: An object is to improve characteristics of a power storage device. The present invention relates to an electricity storage device comprising a current collector and a negative electrode-active material layer formed over the current collector. The negative electrode-active material layer includes a negative electrode comprising a first negative electrode layer in contact with the current collector; a second negative electrode layer in contact with the first negative electrode layer, having a smaller capacitance than the first negative electrode layer and containing one material selected from a nitride of lithium and a transition metal represented by LiaMbNz (M is a transition metal, 0.1≦a≦2.8, 0.2≦b≦1 and 0.6≦z≦1.4), a silicon material, and lithium titanate; a positive electrode that is paired with the negative electrode; and a solid electrolyte interposed between the positive electrode and the negative electrode.

Abstract translation: 目的是提高蓄电装置的特性。 蓄电装置技术领域本发明涉及一种蓄电装置，其特征在于，在集电体上形成集电体和负极活性物质层。 负极活性物质层包括负极，其包含与集电体接触的第一负极层; 与第一负极层接触的第二负极层的电容比第一负极层小，并且含有选自由LiMbNz表示的锂和过渡金属的氮化物的一种材料（M为过渡金属，0.1≤ a≤2.8,0.2≤b≤1,0.6≤z≤1.4），硅材料和钛酸锂; 与负极配对的正极; 以及置于正极和负极之间的固体电解质。

公开(公告)号：US09059478B2

公开(公告)日：2015-06-16

申请号：US13425576

申请日：2012-03-21

Applicant: Shunpei Yamazaki ,  Tomoya Futamura ,  Tamae Moriwaka

Inventor： Shunpei Yamazaki ,  Tomoya Futamura ,  Tamae Moriwaka

IPC: H01M4/02 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/36 ,  H01M4/485 ,  H01M4/58 ,  H01M4/62

CPC classification number: H01M4/366 ,  H01M4/131 ,  H01M4/133 ,  H01M4/136 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/62 ,  H01M4/621 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: To provide a lithium-ion secondary battery having higher discharge capacity and higher energy density and a manufacturing method thereof. The lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer provided over the positive electrode current collector. In the positive electrode active material layer, graphenes and lithium-containing composite oxides are alternately provided. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. Further, the lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with a surface of the positive electrode current collector.

Abstract translation: 提供具有较高放电容量和较高能量密度的锂离子二次电池及其制造方法。 锂离子二次电池包括正极，负极和设置在正极和负极之间的电解质。 正极包括设置在正极集电体上的正极集电体和正极活性物质层。 在正极活性物质层中交替设置石墨烯和含锂复合氧化物。 所述含锂复合氧化物是b轴方向的长度短于a轴方向和c轴方向的长度的平坦的单晶粒子。 此外，在正极集电体上设置含锂复合氧化物，使得单晶粒子的b轴与正极集电体的表面相交。

公开(公告)号：US08841027B2

公开(公告)日：2014-09-23

申请号：US13049407

申请日：2011-03-16

Applicant: Mikio Yukawa ,  Tamae Moriwaka

Inventor： Mikio Yukawa ,  Tamae Moriwaka

IPC: H01M4/58 ,  H01M4/26 ,  C23C14/34 ,  C23C14/06

CPC classification number: H01M4/5825 ,  C23C14/0036 ,  C23C14/08 ,  C23C14/3407 ,  C23C14/3492 ,  H01M4/0404 ,  H01M4/0426 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/366 ,  H01M10/052 ,  H01M2004/021 ,  Y10T29/49108 ,  Y10T29/49115

Abstract: A power storage device with favorable battery characteristics and a manufacturing method thereof are provided. The power storage device includes at least a positive electrode and a negative electrode provided so as to face the positive electrode with an electrolyte provided therebetween. The positive electrode includes a collector and a film containing an active material over the collector. The film containing the active material contains LieFefPgOh satisfying relations 3.5≦h/g≦4.5, 0.6≦g/f≦1.1, and 0≦e/f≦1.3 and LiaFebPcOd satisfying relations 3.5≦d/c≦4.5, 0.6≦c/b≦1.8, and 0.7≦a/b≦2.8. The film containing the active material contains the LiaFebPcOd satisfying the relations 3.5≦d/c≦4.5, 0.6≦c/b≦1.8, and 0.7≦a/b≦2.8 in a region which is in contact with the electrolyte.

Abstract translation: 提供了具有良好的电池特性的蓄电装置及其制造方法。 蓄电装置至少包括正电极和负电极，所述正电极和负电极设置成面对正电极，其间设置有电解质。 正极包括集电体和在集电体上含有活性材料的膜。 含有活性物质的膜含有满足3.5＆nlE; h / g＆nlE; 4.5,0.6＆nlE; g / f＆nlE; 1.1和0＆nlE; e / f＆nlE; 1.3和LiaFebPcOd的关系的LieFefPgOh满足关系3.5＆nlE; d / c＆nlE; 4.5,0.6 ＆nlE; c / b＆nlE; 1.8和0.7＆nlE; a / b＆nlE; 2.8。 含有活性物质的膜含有与电解质接触的区域中满足3.5＆nlE; d / c＆nlE; 4.5,0.6＆nlE; c / b＆nlE; 1.8和0.7＆nlE; a / b＆nlE; 2.8的关系的LiaFebPcOd。

公开(公告)号：US20110177396A1

公开(公告)日：2011-07-21

申请号：US12987331

申请日：2011-01-10

Applicant: Tamae MORIWAKA ,  Tatsuya TAKAHASHI

Inventor： Tamae MORIWAKA ,  Tatsuya TAKAHASHI

IPC: H01M4/36 ,  H01M10/0562

CPC classification number: H01M4/587 ,  H01M4/02 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/362 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/405 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0565 ,  H01M2300/0085 ,  Y02E60/122

Abstract: An object is to improve characteristics of a power storage device. The present invention relates to an electricity storage device comprising a current collector and a negative electrode-active material layer formed over the current collector. The negative electrode-active material layer includes a negative electrode comprising a first negative electrode layer in contact with the current collector; a second negative electrode layer in contact with the first negative electrode layer, having a smaller capacitance than the first negative electrode layer and containing one material selected from a nitride of lithium and a transition metal represented by LiaMbNz (M is a transition metal, 0.1≦a≦2.8, 0.2≦b≦1 and 0.6≦z≦1.4), a silicon material, and lithium titanate; a positive electrode that is paired with the negative electrode; and a solid electrolyte interposed between the positive electrode and the negative electrode.

Abstract translation: 目的是提高蓄电装置的特性。 蓄电装置技术领域本发明涉及一种蓄电装置，其特征在于，在集电体上形成集电体和负极活性物质层。 负极活性物质层包括负极，其包含与集电体接触的第一负极层; 与第一负极层接触的第二负极层，具有比第一负极层小的电容，并且包含选自由LiMbNz表示的锂和过渡金属的氮化物中的一种材料（M是过渡金属，0.1＆amp; ; a＆nlE; 2.8,0.2＆nlE; b＆nlE; 1和0.6＆nlE; z＆nlE; 1.4），硅材料和钛酸锂; 与负极配对的正极; 以及置于正极和负极之间的固体电解质。

公开(公告)号：US20110076566A1

公开(公告)日：2011-03-31

申请号：US12890841

申请日：2010-09-27

Applicant: Tamae MORIWAKA ,  Tatsuya TAKAHASHI

Inventor： Tamae MORIWAKA ,  Tatsuya TAKAHASHI

IPC: H01M10/052

CPC classification number: H01M4/58 ,  H01M4/136 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/0585 ,  Y02E60/13

Abstract: An object is to improve characteristics of a power storage device and achieve a long lifetime. In the case where a lithium nitride is used for a negative electrode active material of a power storage device, a plurality of lithium nitride layers with different lithium concentrations are stacked. For example, in the case where a first lithium nitride layer and a second lithium nitride layer are stacked over a current collector, lithium is contained in the first lithium nitride layer at a lower concentration than lithium contained in the second lithium nitride layer. In this case, a concentration of a transition metal of the first lithium nitride layer is higher than a concentration of the transition metal of the second lithium nitride layer. Note that another alkali metal may be used instead of lithium.

Abstract translation: 一个目的是改善蓄电装置的特性并达到长寿命。 在使用氮化锂作为蓄电装置的负极活性物质的情况下，堆叠具有不同锂浓度的多个氮化锂层。 例如，在集电体上层叠第一氮化锂层和第二氮化锂层的情况下，在比第二氮化锂层中所含的锂浓度低的情况下，在第一氮化锂层中含有锂。 在这种情况下，第一氮化钛层的过渡金属的浓度高于第二氮化硼层的过渡金属的浓度。 注意，可以使用另一种碱金属代替锂。

公开(公告)号：US09577261B2

公开(公告)日：2017-02-21

申请号：US13419639

申请日：2012-03-14

Applicant: Tomoya Futamura ,  Tamae Moriwaka ,  Takahiro Kawakami ,  Junpei Momo ,  Nobuhiro Inoue

Inventor： Tomoya Futamura ,  Tamae Moriwaka ,  Takahiro Kawakami ,  Junpei Momo ,  Nobuhiro Inoue

IPC: H01M4/00 ,  H01M4/13 ,  H01M4/58 ,  H01M4/136 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M10/0525 ,  C30B1/00 ,  H01M4/13 ,  H01M4/136 ,  H01M4/362 ,  H01M4/5825 ,  H01M4/665 ,  H01M4/668 ,  H01M2004/021 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.

Abstract translation: 锂离子二次电池包括正极，负极和设置在正极和负极之间的电解质。 正极包括在正极集电体上的正极集电体和正极活性物质层。 正极活性物质层包含多个由LiMPO4表示的含锂复合氧化物（M为Fe（II），Mn（II），Co（II），Ni（II））中的一种以上。 这是一个通用公式。 所述含锂复合氧化物是b轴方向的长度短于a轴方向和c轴方向的长度的平坦的单晶粒子。 在正极集电体上设置含锂复合氧化物，使得单晶粒子的b轴与正极集电体的表面相交。

公开(公告)号：US20120244430A1

公开(公告)日：2012-09-27

申请号：US13425576

申请日：2012-03-21

Applicant: Shunpei Yamazaki ,  Tomoya Futamura ,  Tamae Moriwaka

Inventor： Shunpei Yamazaki ,  Tomoya Futamura ,  Tamae Moriwaka

IPC: H01M4/583 ,  H01M4/505 ,  H01M4/62 ,  H01M4/525 ,  H01M4/64 ,  H01M4/485

CPC classification number: H01M4/366 ,  H01M4/131 ,  H01M4/133 ,  H01M4/136 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/62 ,  H01M4/621 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: To provide a lithium-ion secondary battery having higher discharge capacity and higher energy density and a manufacturing method thereof. The lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer provided over the positive electrode current collector. In the positive electrode active material layer, graphenes and lithium-containing composite oxides are alternately provided. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. Further, the lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with a surface of the positive electrode current collector.

Abstract translation: 提供具有较高放电容量和较高能量密度的锂离子二次电池及其制造方法。 锂离子二次电池包括正极，负极和设置在正极和负极之间的电解质。 正极包括设置在正极集电体上的正极集电体和正极活性物质层。 在正极活性物质层中交替设置石墨烯和含锂复合氧化物。 所述含锂复合氧化物是b轴方向的长度短于a轴方向和c轴方向的长度的平坦的单晶粒子。 此外，在正极集电体上设置含锂复合氧化物，使得单晶粒子的b轴与正极集电体的表面相交。