公开(公告)号：US08409757B2

公开(公告)日：2013-04-02

申请号：US12695343

申请日：2010-01-28

申请人： Takefumi Okumura ,  Shigetaka Tsubouchi ,  Ryo Inoue

发明人： Takefumi Okumura ,  Shigetaka Tsubouchi ,  Ryo Inoue

IPC分类号： H01M2/14

CPC分类号： H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0025 ,  H01M2300/0042 ,  Y02T10/7011

摘要： A lithium secondary battery is intended to suppress deterioration upon storage at high temperature of 50° C. or higher without deteriorating the output characteristics at a room temperature. The battery includes a positive electrode capable of occluding and releasing lithium ions, a negative electrode capable of occluding and releasing lithium ions, a separator disposed between the positive electrode and the negative electrode, and an electrolyte. The electrolyte contains a compound having a double bond in the molecule and a compound having a plurality of polymerizable functional groups in the molecule, and the electrolyte contains a compound represented by formula (4): (in which Z1 and Z2 each represent any one of an allyl group, a methallyl group, a vinyl group, an acryl group, and a methacryl group).

摘要翻译： 锂二次电池旨在抑制在50℃或更高的高温下储存时的劣化，而不会降低室温下的输出特性。 电池包括能够吸留和释放锂离子的正极，能够吸留和释放锂离子的负极，设置在正极和负极之间的隔膜以及电解质。 电解质含有分子中具有双键的化合物和分子中具有多个可聚合官能团的化合物，电解质含有式（4）表示的化合物：（其中Z1和Z2各自表示 烯丙基，甲代烯丙基，乙烯基，丙烯酰基和甲基丙烯酰基）。

公开(公告)号：US20120100436A1

公开(公告)日：2012-04-26

申请号：US13379359

申请日：2010-06-21

申请人： Ryo Inoue ,  Shigetaka Tsubouchi ,  Takefumi Okumura

发明人： Ryo Inoue ,  Shigetaka Tsubouchi ,  Takefumi Okumura

IPC分类号： H01M10/0525 ,  H01M10/0569 ,  H01M4/583 ,  H01M10/0567 ,  H01M4/505 ,  H01M4/525

CPC分类号： H01M10/0567 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0569 ,  Y02T10/7011

摘要： Disclosed is a lithium-ion secondary battery which includes a carbonaceous material in an anodic active material mix, and a cyclic carbonate and a chain carbonate both in an electrolytic solution. The solvent contains an additive which is a substance having a LUMO energy determined through molecular orbital calculation of lower than the LUMO energy of ethylene carbonate determined through molecular orbital calculation and having a HOMO energy lower than the HOMO energy of vinylene carbonate determined through molecular orbital calculation, the electrolytic solution contains LiPF6 or LiBF4 as an electrolyte, and the electrolytic solution shows a reduction-reaction current of −0.05 mA/cm2 (provided that a reaction current on the reducing side be negative) or less at a potential lower than 1 V and shows an oxidation-reaction current of 0.5 mA/cm2 (provided that a reaction current on the oxidizing side be positive) or more at a potential higher than 5.7 V in an LSV measurement at a potential sweep rate of 1 mV/s using a glassy-carbon disk electrode as a working electrode, a platinum electrode as a counter electrode, and a lithium electrode as a reference electrode.

摘要翻译： 公开了一种在阳极活性材料混合物中包含碳质材料的锂离子二次电池，以及在电解液中的环状碳酸酯和链状碳酸酯。 溶剂含有一种添加剂，该物质具有通过分子轨道计算确定的低于通过分子轨道计算确定的碳酸亚乙酯的LUMO能量并且具有低于通过分子轨道计算确定的碳酸亚乙烯酯的HOMO能量的HOMO能量确定的LUMO能量的物质 电解液含有作为电解质的LiPF 6或LiBF 4，电解液的电位低于1V时，电解液的还原反应电流为-0.05mA / cm 2（条件是还原侧的反应电流为负）以下 并且在电位扫描速度为1mV / s的LSV测量中，使用以下公式示出氧化反应电流为0.5mA / cm 2（条件是氧化侧的反应电流为正），电位高于5.7V的电位 作为工作电极的玻璃碳片电极，作为对电极的铂电极和作为参考电极的锂电极。

公开(公告)号：US20110171501A1

公开(公告)日：2011-07-14

申请号：US13004148

申请日：2011-01-11

申请人： Takefumi Okumura ,  Ryo Inoue ,  Toshio Abe

发明人： Takefumi Okumura ,  Ryo Inoue ,  Toshio Abe

IPC分类号： H01M10/42

CPC分类号： H01M10/0525 ,  H01M10/04 ,  Y02T10/7011 ,  Y02W30/84

摘要： This invention provides a lithium-ion battery in which a coating film forming agent degradation reaction is prevented.A lithium-ion battery 100 in which electrodes 1 and 2 and an electrolyte are accommodated in a battery container 13, and which has a means of for adding a coating film forming agent 20 for adding a coating film forming agent 21 that forms a coating film on the surface of each of electrodes 1 and 2 to an electrolyte in a battery container 13 is provided. With the use of such means of adding a coating film forming agent 20, a reaction of electrochemical degradation of a coating film forming agent 21 is prevented, allowing long-term preservation. Also, with the addition of a coating film forming agent 21 to an electrolyte, a deteriorated coating film on the surface of each of electrodes 1 and 2 is repaired such that a lithium-ion battery 100 can be regenerated, resulting in extension of battery life.

摘要翻译： 本发明提供一种能够防止涂膜形成剂降解反应的锂离子电池。 其中电极1和2和电解质容纳在电池容器13中的锂离子电池100，并且具有添加涂膜形成剂20的方法，涂膜形成剂20用于添加形成涂膜的涂膜形成剂21 在电极1和2中的每一个的表面上提供到电池容器13中的电解质。 通过使用这种添加涂膜形成剂20的方法，可以防止涂膜形成剂21的电化学降解反应，从而可以长期保存。 此外，通过在电解质中添加涂膜形成剂21，修复电极1和2的表面上的劣化涂膜，使得锂离子电池100能够再生，导致电池寿命延长 。

公开(公告)号：US08541118B2

公开(公告)日：2013-09-24

申请号：US13004148

申请日：2011-01-11

申请人： Takefumi Okumura ,  Ryo Inoue ,  Toshio Abe

发明人： Takefumi Okumura ,  Ryo Inoue ,  Toshio Abe

IPC分类号： H01M10/42

CPC分类号： H01M10/0525 ,  H01M10/04 ,  Y02T10/7011 ,  Y02W30/84

摘要： This invention provides a lithium-ion battery in which a coating film forming agent degradation reaction is prevented. A lithium-ion battery 100 in which electrodes 1 and 2 and an electrolyte are accommodated in a battery container 13 , and which has a means of for adding a coating film forming agent 20 for adding a coating film forming agent 21 that forms a coating film on the surface of each of electrodes 1 and 2 to an electrolyte in a battery container 13 is provided. With the use of such means of adding a coating film forming agent 20, a reaction of electrochemical degradation of a coating film forming agent 21 is prevented, allowing long-term preservation. Also, with the addition of a coating film forming agent 21 to an electrolyte, a deteriorated coating film on the surface of each of electrodes 1 and 2 is repaired such that a lithium-ion battery 100 can be regenerated, resulting in extension of battery life.

摘要翻译： 本发明提供一种能够防止涂膜形成剂降解反应的锂离子电池。 其中电极1和2和电解质容纳在电池容器13中的锂离子电池100，并且具有添加涂膜形成剂20的方法，涂膜形成剂20用于添加形成涂膜的涂膜形成剂21 在电极1和2中的每一个的表面上提供到电池容器13中的电解质。 通过使用这种添加涂膜形成剂20的方法，可以防止涂膜形成剂21的电化学降解反应，从而可以长期保存。 此外，通过在电解质中添加涂膜形成剂21，修复电极1和2的表面上的劣化涂膜，使得锂离子电池100能够再生，导致电池寿命延长 。

公开(公告)号：US08642217B2

公开(公告)日：2014-02-04

申请号：US13023617

申请日：2011-02-09

申请人： Takefumi Okumura ,  Ryo Inoue

发明人： Takefumi Okumura ,  Ryo Inoue

IPC分类号： H01M6/16

CPC分类号： H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0037 ,  Y02T10/7011

摘要： A lithium secondary battery includes a positive electrode which can occlude and discharge lithium ion, a negative electrode which can occlude and discharge lithium ion, a separator which is disposed between the positive electrode and the negative electrode, and an electrolyte. In order to suppress a deterioration for a period of high temperature storage at 50° C. or more, the electrolyte includes a compound within whose molecule a plurality of polymerizable functional groups are included.The electrolyte can include a compound represented by the formula 3: wherein each of Z1 and Z2 represents a polymerizable functional group including any one selected from the group consisting of allyl group, methallyl group, vinyl group, acryl group and methacryl group.

摘要翻译： 锂二次电池包括可以闭塞和放电锂离子的正极，可以吸收和释放锂离子的负极，设置在正极和负极之间的隔膜和电解质。 为了抑制在50℃以上的高温保存期间的劣化，电解质包含其分子内含有多个聚合性官能团的化合物。 所述电解质可以包括由式3表示的化合物：其中Z 1和Z 2各自表示包括选自烯丙基，甲代烯丙基，乙烯基，丙烯酰基和甲基丙烯酰基中的任何一种的可聚合官能团。

公开(公告)号：US09118087B2

公开(公告)日：2015-08-25

申请号：US13004918

申请日：2011-01-12

申请人： Toshio Abe ,  Takefumi Okumura

发明人： Toshio Abe ,  Takefumi Okumura

IPC分类号： H01M4/02 ,  H01M4/04 ,  H01M4/62 ,  H01M4/64 ,  H01M10/0525 ,  H01M4/66 ,  H01M4/525 ,  H01M4/587

CPC分类号： H01M10/0525 ,  H01M4/525 ,  H01M4/587 ,  H01M4/623 ,  H01M4/624 ,  H01M4/661 ,  Y02E60/122 ,  Y02T10/7011

摘要： Disclosed are an electrode for a lithium secondary battery which includes a metal substrate and a plated layer arranged on the metal substrate and bearing active material particles and resin particles embedded therein, in which a part of the active material particles and the resin particles has a protruding portion beyond the plated layer; and a lithium secondary battery using the electrode. The electrode helps the lithium secondary battery to be resistant to deterioration and property degradation at high temperature and allows the battery to have high input-output performance and to be suitable typically for hybrid electric vehicles.

摘要翻译： 公开了一种用于锂二次电池的电极，其包括金属基板和布置在金属基板上并承载活性材料颗粒和嵌入其中的树脂颗粒的镀层，其中活性材料颗粒和树脂颗粒的一部分具有突出的 超出镀层的部分; 和使用该电极的锂二次电池。 该电极帮助锂二次电池耐高温劣化和性能降低，并且允许电池具有高输入输出性能并且通常适用于混合动力电动车辆。

公开(公告)号：US20140322576A1

公开(公告)日：2014-10-30

申请号：US13994573

申请日：2012-08-17

申请人： Takefumi Okumura ,  Takayuki Kimura ,  Hiroo Nishiyama ,  Tadashi Yoshiura ,  Sho Hiyama

发明人： Takefumi Okumura ,  Takayuki Kimura ,  Hiroo Nishiyama ,  Tadashi Yoshiura ,  Sho Hiyama

IPC分类号： H01M10/04

CPC分类号： H01M10/0567 ,  H01M2/1235 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0587 ,  H01M10/4235 ,  H01M2004/021 ,  H01M2220/30

摘要： A high-input and high-output battery having a large capacity while guaranteeing safety is provided. As a composition of an electrolytic solution, a composition ratio of ethylene carbonate (EC) is 20 vol % or more and 30 vol % or less, and a composition ratio of dimethyl carbonate (DMC) is 36 vol % or more and 50 vol % or less, and a composition ratio η (DMC/EMC) of dimethyl carbonate (DMC) and ethyl methyl carbonate (EMC) is 1.05≦η≦1.7. Furthermore, a composition ratio of an additive is 0.1 wt. % or more and 1.0 wt. % or less, and a concentration of lithium salt is 1.0 mol/L or more and 1.5 mol/L or less.

摘要翻译： 提供了具有大容量的高输入和高输出电池，同时保证了安全性。 作为电解液的组成，碳酸亚乙酯（EC）的组成比为20体积％以上且30体积％以下，碳酸二甲酯（DMC）的组成比为36体积％〜50体积％ 或更低，组成比＆ 碳酸二甲酯（DMC）和碳酸甲乙酯（EMC）的（DMC / EMC）为1.05＆amp; nlE; 1.7。 此外，添加剂的组成比为0.1重量％。 ％以上且1.0重量％ ％以下，锂盐的浓度为1.0mol / L以上且1.5mol / L以下。

公开(公告)号：US20070048618A1

公开(公告)日：2007-03-01

申请号：US11505306

申请日：2006-08-17

申请人： Takefumi Okumura ,  Masanori Sakai ,  Akira Satou

发明人： Takefumi Okumura ,  Masanori Sakai ,  Akira Satou

IPC分类号： H01M10/40 ,  H01M2/16

CPC分类号： H01M10/0525 ,  H01M2/1673 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/366 ,  H01M10/0565 ,  Y02E10/542 ,  Y02E60/122

摘要： This invention provides electrochemical devices that facilitate formation of an electric double layer, i.e., a reaction field at the electrode interface, for the purpose of reducing interface resistance. Such electrochemical devices each independently have a positive electrode and a negative electrode, wherein the positive electrode and the negative electrode are each in contact with a polymer, and wherein the Lewis acid properties of a polymer that is in contact with the positive electrode are different from those of a polymer that is in contact with the negative electrode.

摘要翻译： 本发明提供了便于形成双电层的电化学装置，即电极界面处的反应场，以减少界面电阻。 这种电化学装置各自独立地具有正极和负极，其中正极和负极各自与聚合物接触，并且其中与正极接触的聚合物的路易斯酸性质不同于 与负极接触的聚合物的那些。

公开(公告)号：US20050260501A1

公开(公告)日：2005-11-24

申请号：US11055485

申请日：2005-02-11

申请人： Takefumi Okumura ,  Shin Nishimura

发明人： Takefumi Okumura ,  Shin Nishimura

IPC分类号： C08K3/00 ,  C08K5/00 ,  C08L69/00 ,  H01B1/06 ,  H01M10/05 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/40

CPC分类号： H01M10/0566 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0025

摘要： An electrolyte with excellent ionic conductivity, and a lithium secondary battery utilizing the electrolyte for increased level of safety. The lithium secondary battery comprises a positive and a negative electrode that reversibly intercalate and deintercalate lithium, and an electrolyte containing a lithium ion. The electrolyte comprises: a polymer having a carbonate group represented by formula 1 below: where R1 is a hydrocarbon group with a carbon number of 2 to 7, and n is an integer from 10 to 10000; an electrolyte salt; and an organic solvent. The electrolyte salt is contained with a molar ratio of 0.2 or more with respect to the carbonate group, thereby providing the battery with an excellent ionic conductivity and high levels of safety.

摘要翻译： 具有优异的离子电导率的电解质和利用电解质的锂二次电池提高安全性。 锂二次电池包括可逆地插入和脱嵌锂的正极和负极以及含有锂离子的电解质。 电解质包括：具有下述式1表示的碳酸酯基的聚合物：其中R 1是碳数为2至7的烃基，n为10至10000的整数; 电解质盐 和有机溶剂。 电解质盐相对于碳酸酯基的摩尔比为0.2以上，由此为电池提供优异的离子导电性和高安全性。

公开(公告)号：US20140370346A1

公开(公告)日：2014-12-18

申请号：US13994569

申请日：2012-08-20

申请人： Takefumi Okumura ,  Takayuki Kimura ,  Hiroo Nishiyama

发明人： Takefumi Okumura ,  Takayuki Kimura ,  Hiroo Nishiyama

IPC分类号： H01M10/0587 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/36

CPC分类号： H01M10/0587 ,  H01M4/131 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

摘要： A high-input and high-output battery having a large capacity while guaranteeing safety is provided. In a lithium ion battery having an electrode wound group in which a positive electrode, a negative electrode, and a separator are wound and an electrolytic solution provided in a battery container, a discharge capacity of the battery being 30 Ah or more, the positive electrode has a current collector and a positive electrode composite applied to both surfaces of the current collector, and the positive electrode composite has following configuration. The positive electrode composite contains a mixed active material of layered lithium nickel manganese cobalt composite oxide (NMC) and spinel lithium manganese oxide (sp-Mn), a density of the positive electrode composite is 2.4 g/cm3 or more and 2.7 g/cm3 or less, and an application quantity of the positive electrode composite is 175 g/m2 or more and 250 g/m2 or less.

摘要翻译： 提供了具有大容量的高输入和高输出电池，同时保证了安全性。 在其中缠绕有正极，负极和隔膜的电极卷绕组的锂离子电池和设置在电池容器中的电解液，电池的放电容量为30Ah以上，正极 具有应用于集电体的两面的集电体和正极复合体，正极复合体具有以下构造。 正极复合体含有层状锂镍锰钴复合氧化物（NMC）和尖晶石锂锰氧化物（sp-Mn）的混合活性物质，正极复合体的密度为2.4g / cm 3以上2.7g / cm 3 以下，正极复合体的涂布量为175g / m 2以上且250g / m 2以下。