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1.发明专利Negative electrode for secondary battery, secondary battery, and method of manufacturing negative electrode for secondary battery 有权用于二次电池的二次电池负极，二次电池及二次电池负极电极的制造方法
公开(公告)号：JP2011009228A
公开(公告)日：2011-01-13
申请号：JP2010179060
申请日：2010-08-09
Inventor： UTSUKI KOJI , YAMAMOTO HIROCHIKA , IRIYAMA JIRO , MORI MITSUHIRO , MIURA TAMAKI , SAKAUCHI YUTAKA , MIYAJI MARIKO , YAMAZAKI IKIKO
IPC: H01M4/133 , H01M4/13 , H01M4/134 , H01M4/139 , H01M4/1393 , H01M4/1395 , H01M4/38 , H01M4/48 , H01M4/62 , H01M10/052 , H01M10/0566
CPC classification number: Y02E60/122
Abstract: PROBLEM TO BE SOLVED: To provide a negative electrode with a multilayer structure, capable of materializing high battery capacitance while maintaining high charge and discharge efficiency and satisfactory cycle characteristics in a lithium secondary battery, and to provide a simple method of manufacturing the negative electrode.SOLUTION: A first active material layer 2a having a carbon material as a main component, and a second layer 3a to which metal based active material particles are bound by a binder are laminated on a copper foil 1a serving as a collector. The second layer 3a is formed by dispersing at least one or more among particles of a metal selected from a group of Si, Ge, Sn, In and Pb, alloy particles, and metal oxide particles in a solution obtained by dissolving the binder in a solvent, applying the coating liquid, and drying it.
Abstract translation: 要解决的问题：为了提供具有多层结构的负极，能够实现高电池电容，同时保持锂二次电池的高充放电效率和令人满意的循环特性，并提供简单的负极制造方法。 解决方案：以碳材料为主要成分的第一活性物质层2a和金属基活性物质颗粒通过粘结剂结合的第二层3a层叠在作为集电体的铜箔1a上。 第二层3a通过将选自Si，Ge，Sn，In和Pb，合金颗粒和金属氧化物颗粒的金属的颗粒中的至少一种分散在通过将粘合剂溶解在 溶剂，涂布涂料，并干燥。
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公开(公告)号：JP2005294078A
公开(公告)日：2005-10-20
申请号：JP2004108422
申请日：2004-03-31
Inventor： MIYAJI MARIKO , YAMAMOTO HIROCHIKA
IPC: H01M4/13 , H01M4/133 , H01M4/36 , H01M4/38 , H01M4/48 , H01M4/587 , H01M10/05 , H01M10/052 , H01M10/0525 , H01M10/0565 , H01M10/0566 , H01M4/02 , H01M4/58 , H01M10/40
CPC classification number: Y02E60/122
Abstract: PROBLEM TO BE SOLVED: To provide a negative electrode for a secondary battery which is superior in current collection characteristics, its manufacturing method, and the secondary battery which is superior in cycle characteristics.
SOLUTION: This is the negative electrode for the secondary battery in which an active material layer containing inorganic composite particles and carbon particles are formed on a current collector, and the inorganic composite particles are made to be the particles of 40 μm or under which contain silicon oxide and at least one kind of metals, and the carbon particles are made to satisfy a formula (1) when X-ray diffraction intensity of (002) face is taken as I
002 , and X-ray diffraction intensity of (110) face of the carbon particles is taken as I
110 , and diameters of the particles are made to be 40 μm or under.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供一种电流集中特性优异的二次电池用负极，其制造方法和循环特性优异的二次电池。 解决方案：这是其中在集电器上形成含有无机复合颗粒和碳颗粒的活性材料层的二次电池的负极，并且将无机复合颗粒制成为40μm或以下的颗粒 其含有氧化硅和至少一种金属，并且当（002）面的X射线衍射强度取为I
002 时，使碳粒子满足式（1），并且 将碳粒子的（110）面的X射线衍射强度设为I 110 ，使粒子直径为40μm以下。 版权所有（C）2006，JPO＆NCIPI -
公开(公告)号：JP2005203341A
公开(公告)日：2005-07-28
申请号：JP2004317279
申请日：2004-10-29
Inventor： YAMAMOTO HIROCHIKA , UTSUKI KOJI , KUSACHI TAKEKI , MIYAJI MARIKO
IPC: H01G9/08 , H01M2/02 , H01M4/48 , H01M4/54 , H01M4/56 , H01M4/62 , H01M10/05 , H01M10/052 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M14/00 , H01M10/40 , H01G9/038 , H01G9/058 , H01M4/02 , H01M4/58
CPC classification number: Y02E60/122
Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery which has characteristics such as excellent energy density, an electromotive force, etc., and also is excellent in cycle life and preservation stability. SOLUTION: In the secondary battery having at least a positive electrode, a cathode, and an electrolyte, the cathode occludes an alkali metal or an alkali earth metal as a cathode active substance, and contains an oxide to be emitted. The electrolyte contains at least an aprotic solvent in which the electrolyte is dissolved, and a compound represented by a general formula (1). COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 解决的问题：提供具有优异的能量密度，电动势等特性的锂二次电池，并且循环寿命和保存稳定性优异。 解决方案：在至少具有正电极，阴极和电解质的二次电池中，阴极封闭作为阴极活性物质的碱金属或碱土金属，并含有要发射的氧化物。 所述电解质至少含有溶解有电解质的非质子性溶剂和由通式（1）表示的化合物。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2003045415A
公开(公告)日：2003-02-14
申请号：JP2001232716
申请日：2001-07-31
Inventor： MORI MITSUHIRO , YAMAMOTO HIROCHIKA , UTSUKI KOJI , IRIYAMA JIRO , MIURA TAMAKI , MIYAJI MARIKO
IPC: H01M10/05 , H01M4/133 , H01M4/134 , H01M4/137 , H01M4/1393 , H01M4/1395 , H01M4/36 , H01M4/60 , H01M4/62 , H01M4/02 , H01M10/40
Abstract: PROBLEM TO BE SOLVED: To provide a negative electrode for a lithium secondary battery preventing the growth of dendrites on the lithium metal negative electrode for a long time, with excellent energy density, a cycle life and efficiency.
SOLUTION: This negative electrode is formed by laminating a first layer 2a containing a conductive material capable of storing/releasing lithium ions; a second layer 3a comprising lithium or a lithium alloy; and a third layer 4a having lithium ion conductivity formed thereon, on a current collector 1a in this order.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：为了提供锂二次电池的负极，其能够长时间地防止锂金属负极上的枝晶的生长，具有优异的能量密度，循环寿命和效率。 解决方案：该负极通过层压含有能够储存/释放锂离子的导电材料的第一层2a而形成; 包含锂或锂合金的第二层3a; 以及在其上形成有锂离子传导性的第三层4a，依次在集电体1a上。
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公开(公告)号：JP2002358954A
公开(公告)日：2002-12-13
申请号：JP2002066977
申请日：2002-03-12
Applicant: NEC CORP
Inventor： YAMAMOTO HIROCHIKA , IRIYAMA JIRO , MIURA TAMAKI , MORI MITSUHIRO , UTSUKI KOJI
IPC: H01M4/13 , H01M4/139 , H01M4/36 , H01M4/40 , H01M4/48 , H01M4/485 , H01M4/58 , H01M4/587 , H01M10/052 , H01M10/36 , H01M10/42 , H01M4/02 , H01M10/40
Abstract: PROBLEM TO BE SOLVED: To increase the battery capacity in substance in the region of actual use of the battery, while maintaining a high charge and discharge efficiency and a good cycle characteristic. SOLUTION: In the negative electrode for secondary battery that can store and release lithium ion, a multi-layer structure including a first layer 2a made of mainly carbon and a second layer 3a made of mainly a membrane-shaped lithium storage material that can store lithium more than the theoretical capacity of lithium storage of carbon, is provided. And the membrane-shaped lithium storage material is selected from a group of Si, Ge, Sn, Pb, and an oxide of these.
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Patent Agency Ranking
公开(公告)号：JP2002141058A
公开(公告)日：2002-05-17
申请号：JP2000337804
申请日：2000-11-06
Applicant: NEC CORP
Inventor： UTSUKI KOJI , MORI MITSUHIRO , IRIYAMA JIRO , YAMAMOTO HIROCHIKA
Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery that suppresses growth of dendrite in the negative electrode containing metal lithium or its alloy and is excellent in energy density and electromotive force and also excellent in cycle life, and its manufacturing method. SOLUTION: The lithium secondary battery has a negative electrode that contains a lithium layer containing metal lithium or its alloy on the conductive substrate (current collector). The negative electrode is provided with a metal fluoride layer containing at least one kind of metal fluoride by vacuum deposition.
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公开(公告)号：JP2000049403A
公开(公告)日：2000-02-18
申请号：JP21282498
申请日：1998-07-28
Applicant: NEC CORP
Inventor： YAMAMOTO HIROCHIKA , BABA KAZUHIRO
Abstract: PROBLEM TO BE SOLVED: To radiate high-intensity and high-brightness high-frequency electromagnetic wave by forming light radiation parts in diamond film with poly-crystal diamond. SOLUTION: A poly-crystal diamond film 2 and an overcoat a diamond layer 4 are radiated with stimulation light 5. A KrF laser of 2ps pulse half-width is used as stimulation light. When the diamond film 4 is radiated with the stimulation light 5, electrons and electron holes are produced as light carriers. The light carriers move in the poly-crystal diamond film 2 or in the overcoat diamond layer 4. The more carriers produced and the larger number of carriers reaching electrodes 3 emitting high-frequency electromagnetic wave, the higher- intensity high-frequency electromagnetic wave 10 is produced. Since the diamond crystal exhibits higher dielectric breakdown voltage than other semiconductor materials, a high voltage can be applied between electrodes and a high- brightness high-frequency electromagnetic wave can be emitted at the time of stimulation light radiation.
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8.发明专利Negative electrode for secondary battery and secondary battery using the same 审中-公开用于二次电池的负极和使用该二次电池的二次电池
公开(公告)号：JP2007026926A
公开(公告)日：2007-02-01
申请号：JP2005208320
申请日：2005-07-19
Inventor： YAMAMOTO HIROCHIKA , MIYAJI MARIKO , SHIRAKATA MASAHITO
IPC: H01M4/62 , H01M4/02 , H01M4/13 , H01M4/134 , H01M4/38 , H01M4/48 , H01M10/05 , H01M10/052 , H01M10/0566
CPC classification number: Y02E60/122
Abstract: PROBLEM TO BE SOLVED: To provide a secondary battery which suppresses oxidation of at least one kind of negative electrode active material selected from metals, semimetals, and these incomplete oxides; reduces increase in the internal resistance of the battery; and achieves superior cycle performance and high capacity maintenance factor.
SOLUTION: The negative electrode for the secondary battery contains at least one kind of negative electrode active material selected from among groups comprising metals, semimetals and these incomplete oxides which can store and release lithium, and it has a negative electrode active material layer wherein the top surface at the electrolyte side is coated with the anti-oxidation film containing a material with the normal electrode potential of -1 V or more.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供抑制至少一种选自金属，半金属和这些不完全氧化物的负极活性物质的氧化的二次电池; 减少电池内阻的增加; 并实现了卓越的循环性能和高容量维护率。 解决方案：二次电池用负极含有选自包含金属，半金属和能够储存和释放锂的这些不完全氧化物的组中的至少一种负极活性物质，并且具有负极活性物质层 其中电解质侧的顶表面涂覆有含有正电极电位为-1V以上的材料的抗氧化膜。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2005203343A
公开(公告)日：2005-07-28
申请号：JP2004317297
申请日：2004-10-29
Inventor： YAMAMOTO HIROCHIKA , UTSUKI KOJI , KUSACHI TAKEKI , MIYAJI MARIKO
IPC: H01M2/02 , H01M4/38 , H01M10/05 , H01M10/052 , H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M10/40 , H01M4/02
CPC classification number: Y02E60/122
Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery which has characteristics such as excellent energy density, an electromotive force, etc., and also is excellent in cycle life and preservation stability.
SOLUTION: In the secondary battery having at least a positive electrode, a cathode and an electrolyte, the cathode occludes an alkali metal or an alkali earth metal as a cathode active substance, contains at least a metal or a semimetal containing at least one type or more of emitting element M (M is an element selected from a group composed of Si, Sn, Al, Pb, Ag, Ge and Sb), and the electrolyte contains an aprotic solvent in which at least the electrolyte is dissolved and a compound represented by a general formula (1).
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 解决的问题：提供具有优异的能量密度，电动势等特性的锂二次电池，并且循环寿命和保存稳定性优异。 解决方案：在至少具有正电极，阴极和电解质的二次电池中，阴极封闭作为阴极活性物质的碱金属或碱土金属，至少含有至少含有金属或半金属 一种或多种发光元件M（M是选自由Si，Sn，Al，Pb，Ag，Ge和Sb组成的组中的元素），并且电解质含有至少电解质溶解的非质子溶剂， 由通式（1）表示的化合物。 版权所有（C）2005，JPO＆NCIPI
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10.发明专利Negative electrode activator for secondary battery, negative electrode and secondary battery using the same, and manufacturing method of negative electrode activator for secondary battery and negative electrode for secondary battery using the activator 审中-公开用于二次电池的负极电极激励器，使用该电池的负极和二次电池以及使用激活器的二次电池负极电极和负极电极的二次电池的制造方法
公开(公告)号：JP2005071938A
公开(公告)日：2005-03-17
申请号：JP2003303450
申请日：2003-08-27
Inventor： MIYAJI MARIKO , YAMAMOTO HIROCHIKA , KAWAI HIDEMASA
IPC: C22C45/02 , C22C45/04 , C22C45/10 , H01M4/133 , H01M4/1393 , H01M4/36 , H01M4/48 , H01M4/587 , H01M10/05 , H01M4/58 , H01M4/02 , H01M4/04 , H01M10/40
CPC classification number: Y02P70/54
Abstract: PROBLEM TO BE SOLVED: To obtain a sufficient cycle property when using an Li storing substance which forms an alloy with lithium on a negative electrode. SOLUTION: The secondary battery uses complex grains 30 including Li storing materials 34 in a carbonaceous material 32. The complex grain satisfies at least one condition out of following conditions (i) to (iii). (i) The center of gravity of a Li storing substance grain is located inside the complex grain. (ii) The center of gravity of all Li storing material grains contained in one complex grain is located on an inscribed circle of the complex grain with the center of gravity as a center, having a maximum area out of cross sectional planes of the complex grain. (iii) The coefficient of variation obtained by multiplying 100 on a value calculated by dividing the standard deviation of distances between center of gravity of the respective Li absorbing material grains contained in one complex grain and the center of gravity of the complex grain by a mean value of the distances, is not less than 10. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：当在负极上使用与锂形成合金的Li储存物质时，获得足够的循环特性。 解决方案：二次电池使用包含Li储存材料34的复合晶粒30在碳质材料32中。复合晶粒满足以下条件（i）至（iii）中的至少一种条件。 （i）Li储存物质颗粒的重心位于复合颗粒内。 （ii）包含在一个复合颗粒中的所有Li储存材料颗粒的重心位于以重心为中心的复合颗粒的内接圆上，复合颗粒的横截面的最大面积 。 （iii）通过将包含在一个复合颗粒中的各个Li吸收材料颗粒的重心之间的距离的标准偏差除以复合颗粒的重心的平均值乘以100而得到的变化系数为平均值 距离的值不小于10.版权所有（C）2005，JPO＆NCIPI
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