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1. 发明授权

US10374219B2 Lithium ion secondary battery 有权
公开(公告)号：US10374219B2
公开(公告)日：2019-08-06
申请号：US14119201
申请日：2012-04-13
申请人： Ryuichi Kasahara , Jiro Iriyama , Shin Serizawa , Hiroo Takahashi , Tatsuji Numata
发明人： Ryuichi Kasahara , Jiro Iriyama , Shin Serizawa , Hiroo Takahashi , Tatsuji Numata
IPC分类号： H01M4/13 , H01M4/04 , H01M4/1395 , H01M4/134 , H01M4/62 , H01M10/0525 , H01M10/0568 , H01M10/0585
摘要： The object of an exemplary embodiment of the invention is to provide a lithium ion secondary battery having an excellent charge and discharge cycle property. An exemplary embodiment of the invention is a lithium ion secondary battery, comprising a battery assembly in which a positive electrode and a negative electrode are stacked through a separator and a package in which the battery assembly and an electrolyte are placed; wherein the negative electrode comprises a negative electrode collector which is composed of a metal and a negative electrode active material layer which is formed on the negative electrode collector and which comprises a negative electrode active material and a binder; wherein the negative electrode collector and the negative electrode active material layer have a crack which is formed so as to be communicated with each of them; and wherein the crack reaches an outer peripheral edge from an inside of the negative electrode.

2. 发明申请

US20140127557A1 LITHIUM ION SECONDARY BATTERY 审中-公开
标题翻译：锂离子二次电池
公开(公告)号：US20140127557A1
公开(公告)日：2014-05-08
申请号：US14119201
申请日：2012-04-13
申请人： Ryuichi Kasahara , Jiro Iriyama , Shin Serizawa , Hiroo Takahashi , Tatsuji Numata
发明人： Ryuichi Kasahara , Jiro Iriyama , Shin Serizawa , Hiroo Takahashi , Tatsuji Numata
IPC分类号： H01M4/13 , H01M4/04 , H01M4/1395
CPC分类号： H01M4/13 , H01M4/0404 , H01M4/134 , H01M4/1395 , H01M4/622 , H01M10/0525 , H01M10/0568 , H01M10/0585 , Y02T10/7011
摘要： The object of an exemplary embodiment of the invention is to provide a lithium ion secondary battery having an excellent charge and discharge cycle property. An exemplary embodiment of the invention is a lithium ion secondary battery, comprising a battery assembly in which a positive electrode and a negative electrode are stacked through a separator and a package in which the battery assembly and an electrolyte are placed; wherein the negative electrode comprises a negative electrode collector which is composed of a metal and a negative electrode active material layer which is formed on the negative electrode collector and which comprises a negative electrode active material and a binder; wherein the negative electrode collector and the negative electrode active material layer have a crack which is formed so as to be communicated with each of them; and wherein the crack reaches an outer peripheral edge from an inside of the negative electrode.
摘要翻译：本发明的示例性实施方案的目的是提供具有优异的充放电循环特性的锂离子二次电池。本发明的一个示例性实施例是一种锂离子二次电池，其包括：电池组件，其中正电极和负电极通过隔板堆叠;以及封装，其中放置电池组和电解质; 其特征在于，所述负极包括负极集电体，所述负极集电体由金属和负极活性物质层构成，所述负极活性物质层形成在所述负极集电体上并且包含负极活性物质和粘合剂; 其特征在于，所述负极集电体和所述负极活性物质层具有形成为与所述负极活性物质层连通的裂纹，并且其中所述裂纹从所述负极的内部到达外周边缘。

3. 发明授权

US09076995B2 Secondary battery 有权
标题翻译：二次电池
公开(公告)号：US09076995B2
公开(公告)日：2015-07-07
申请号：US13426020
申请日：2012-03-21
申请人： Shin Serizawa , Hiroo Takahashi , Daisuke Kawasaki , Jiro Iriyama , Ryuichi Kasahara , Emiko Fujii , Tetsuya Kajita , Tatsuji Numata
发明人： Shin Serizawa , Hiroo Takahashi , Daisuke Kawasaki , Jiro Iriyama , Ryuichi Kasahara , Emiko Fujii , Tetsuya Kajita , Tatsuji Numata
IPC分类号： H01M2/12 , H01M2/02
CPC分类号： H01M2/02 , H01M2/0212 , H01M2/12 , H01M2/1235 , H01M2/1247 , H01M2/1252 , H01M10/0525 , Y02E60/122 , Y02P70/54 , Y10T29/49112
摘要： A secondary battery according to the present exemplary embodiment is a secondary battery including a laminated electrode body provided with at least one pair of positive and negative electrodes and an outer enclosure that accommodates the laminated electrode body, wherein the outer enclosure includes one or more concave portions, inside a border corresponding to an outer edge of an electrode surface of an outermost layer of the laminated electrode body, on a surface facing the electrode surface, and wherein, when a band-shaped outer circumferential region having an area that is a half of an area inside the border is set inside the border, at least one of the concave portions is located inside the outer circumferential region.
摘要翻译：根据本示例性实施例的二次电池是包括设置有至少一对正极和负极的层压电极体和容纳层叠电极体的外壳的二次电池，其中，所述外壳包括一个或多个凹部在与电极表面相对的表面上的与层压电极体的最外层的电极表面的外边缘相对应的边界内，并且其中，当带状外周区域的面积为边界内的区域设置在边界内，至少一个凹部位于外周区域的内部。

4. 发明授权

US08956762B2 Lithium ion secondary battery and method for manufacturing the same 有权
标题翻译：锂离子二次电池及其制造方法
公开(公告)号：US08956762B2
公开(公告)日：2015-02-17
申请号：US13805565
申请日：2011-07-29
申请人： Ryuichi Kasahara , Jiro Iriyama , Tetsuya Kajita , Hiroo Takahashi , Tatsuji Numata , Daisuke Kawasaki
发明人： Ryuichi Kasahara , Jiro Iriyama , Tetsuya Kajita , Hiroo Takahashi , Tatsuji Numata , Daisuke Kawasaki
IPC分类号： H01M4/134 , H01M4/38 , H01M4/04 , H01M4/1395 , H01M4/62 , H01M10/0525 , H01M10/0585
CPC分类号： H01M4/386 , H01M4/0421 , H01M4/134 , H01M4/1395 , H01M4/622 , H01M10/0525 , H01M10/0585 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： In a lithium ion secondary battery including a positive electrode, a separator, a negative electrode, and a package body, the negative electrode includes simple substance silicon as a negative electrode active material, and a negative electrode binder, and is doped with lithium, and the following formulas (1) and (2) are satisfied: 1.2≦Ma/Mc≦1.9 (1) 1.0
摘要翻译：在包含正极，隔膜，负极和封装体的锂离子二次电池中，负极包括作为负极活性物质的单质硅和负极粘合剂，并掺杂有锂，并且满足以下公式（1）和（2）：1.2＆nlE; Ma / Mc＆nlE; 1.9（1）1.0

5. 发明申请

US20130108914A1 LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME 有权
标题翻译：锂离子二次电池及其制造方法
公开(公告)号：US20130108914A1
公开(公告)日：2013-05-02
申请号：US13805565
申请日：2011-07-29
申请人： Ryuichi Kasahara , Jiro Iriyama , Tetsuya Kajita , Hiroo Takahashi , Tatsuji Numata , Daisuke Kawasaki
发明人： Ryuichi Kasahara , Jiro Iriyama , Tetsuya Kajita , Hiroo Takahashi , Tatsuji Numata , Daisuke Kawasaki
IPC分类号： H01M4/38
CPC分类号： H01M4/386 , H01M4/0421 , H01M4/134 , H01M4/1395 , H01M4/622 , H01M10/0525 , H01M10/0585 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： In a lithium ion secondary battery including a positive electrode, a separator, a negative electrode, and a package body, the negative electrode includes simple substance silicon as a negative electrode active material, and a negative electrode binder, and is doped with lithium, and the following formulas (1) and (2) are satisfied: 1.2≦Ma/Mc≦1.9 (1) 1.0
摘要翻译：在包含正极，隔膜，负极和封装体的锂离子二次电池中，负极包括作为负极活性物质的单质硅和负极粘合剂，并掺杂有锂，并且满足以下公式（1）和（2）：1.2 @ Ma / Mc @ 1.9（1）1.0

6. 发明申请

US20130101899A1 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
标题翻译：非电解电解质二次电池
公开(公告)号：US20130101899A1
公开(公告)日：2013-04-25
申请号：US13806020
申请日：2011-06-06
申请人： Tetsuya Kajita , Hiroo Takahashi , Ryuichi Kasahara , Jiro Iriyama , Tatsuji Numata
发明人： Tetsuya Kajita , Hiroo Takahashi , Ryuichi Kasahara , Jiro Iriyama , Tatsuji Numata
IPC分类号： H01M4/485 , H01M10/04 , H01M4/525
CPC分类号： H01M4/485 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/525 , H01M10/04 , Y10T29/49108
摘要： There is provided a nonaqueous electrolyte secondary battery having high capacity in which the reduction in the capacity of the battery due to the irreversible capacity in the first charge and discharge is suppressed using a high capacity positive electrode. The nonaqueous electrolyte secondary battery according to the exemplary embodiment includes a positive electrode and a negative electrode including at least one negative electrode active material selected from the group consisting of Si, a Si oxide and carbon, wherein the positive electrode includes a positive electrode active material including an oxide capable of absorbing and releasing lithium and a transition metal oxide, the transition metal oxide being represented by Li2MO2 (wherein M is at least one of Cu and Ni) and including a square-planar coordination MO4 structure, the square-planar coordination MO4 structure forming a one-dimensional chain which shares an edge formed by two opposing oxygen atoms, wherein the relation Z≦Y is satisfied provided that Y represents the first charge capacity of the negative electrode, and Z represents the first charge capacity of the positive electrode.
摘要翻译：提供了一种高容量的非水电解质二次电池，其中使用高容量正极抑制了由于第一次充放电中的不可逆容量引起的电池容量的降低。本实施方式的非水电解质二次电池包括正极和负极，所述正极和负极具有选自由Si，Si氧化物和碳组成的组中的至少一种负极活性物质，其中所述正极包含正极活性物质包括能够吸收和释放锂的氧化物和过渡金属氧化物，所述过渡金属氧化物由Li2MO2（其中M是Cu和Ni中的至少一种）表示，并且包括正方形协调MO4结构，所述正方形配位形成共享由两个相对的氧原子形成的边缘的一维链的MO4结构，其中满足关系Z @ Y，其中Y表示负极的第一充电容量，Z表示正极的第一充电容量电极。

7. 发明申请

US20130280594A1 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
标题翻译：非电解电解质二次电池
公开(公告)号：US20130280594A1
公开(公告)日：2013-10-24
申请号：US13977895
申请日：2011-01-18
申请人： Tetsuya Kajita , Ryuichi Kasahara , Jiro Iriyama , Tatsuji Numata
发明人： Tetsuya Kajita , Ryuichi Kasahara , Jiro Iriyama , Tatsuji Numata
IPC分类号： H01M4/134
CPC分类号： H01M4/134 , H01M4/131 , H01M4/36 , H01M4/386 , H01M10/0525 , H01M10/0585 , H01M2004/021
摘要： In a nonaqueous electrolyte secondary battery using silicon and silicon oxide as a negative electrode active material, the charge and discharge cycle characteristics are improved. A nonaqueous electrolyte secondary battery in the exemplary embodiment comprises a sheet-shaped negative electrode comprising a negative electrode active material layer comprising a composite of silicon and silicon oxide formed on a negative electrode current collector, and a sheet-shaped positive electrode comprising a positive electrode active material layer formed on a positive electrode current collector, wherein the negative electrode is disposed opposed to the positive electrode via a separator, a peripheral edge portion of the negative electrode active material layer is disposed within a peripheral edge portion of the positive electrode active material layer, and a relationship of 1.00
摘要翻译：在使用硅和氧化硅作为负极活性物质的非水电解质二次电池中，充放电循环特性得到改善。本实施方式的非水电解质二次电池包括由在负极集电体上形成的由硅和氧化硅构成的复合体的负极活性物质层和包含正极集电体的片状正极的片状负极，形成在正极集电体上的活性物质层，其中，所述负极经由隔膜与所述正极配置成相对，所述负极活性物质层的周缘部配置在所述正极活性物质的周缘部当正极的充电容量为a，负极的充电容量为b，b / a = c时，满足1.00

8. 发明授权

US09768476B2 System and method for detecting a state of a lithium secondary battery by measuring a voltage of a negative electrode with respect to a reference electrode 有权
公开(公告)号：US09768476B2
公开(公告)日：2017-09-19
申请号：US14670971
申请日：2015-03-27
申请人： Jiro Iriyama , Tetsuya Kajita , Daisuke Kawasaki , Ryuichi Kasahara , Tatsuji Numata
发明人： Jiro Iriyama , Tetsuya Kajita , Daisuke Kawasaki , Ryuichi Kasahara , Tatsuji Numata
IPC分类号： H01M10/48 , H01M4/485 , H01M10/44 , G01R31/36 , G06F17/15 , H02J7/00
CPC分类号： H01M10/48 , G01R31/362 , G01R31/3648 , G06F17/15 , H01M4/485 , H01M10/44 , H02J7/00 , H02J7/007 , Y02E60/122 , Y02P70/54
摘要： A control system for a lithium secondary battery measures a voltage V of a negative electrode that uses silicon oxide as a negative electrode active material, with respect to a lithium reference electrode and a discharge capacity Q of the lithium secondary battery during discharge of the lithium secondary battery; generates a V−dQ/dV curve representing a relationship between dQ/dV, which is a proportion of an amount of change dQ in the discharge capacity Q to an amount of change dV in the voltage V, and the voltage V; calculates an intensity ratio of two peaks appearing on the V−dQ/dV curve for two voltage values in the voltage V; and senses a state of the negative electrode utilizing the intensity ratio.

9. 发明授权

US09263741B2 Negative electrode for nanaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery using the same, and method for manufacturing negative electrode for nonaqueous electrolyte secondary battery 有权
标题翻译：非水电解质二次电池用负极，使用其的非水电解质二次电池及非水电解质二次电池用负极的制造方法
公开(公告)号：US09263741B2
公开(公告)日：2016-02-16
申请号：US13132549
申请日：2009-12-17
申请人： Jiro Iriyama , Ryuichi Kasahara , Tetsuya Kajita , Tatsuji Numata
发明人： Jiro Iriyama , Ryuichi Kasahara , Tetsuya Kajita , Tatsuji Numata
IPC分类号： H01M4/131 , H01M4/134 , H01M4/1391 , H01M4/1395 , H01M4/38 , H01M10/052 , H01M4/04 , H01M4/48 , H01M4/02
CPC分类号： H01M4/386 , H01M4/0461 , H01M4/0471 , H01M4/134 , H01M4/1395 , H01M4/483 , H01M10/052 , H01M2004/027 , Y02E60/122 , Y02P70/54 , Y02T10/7011 , Y10T29/49108 , Y10T29/49115
摘要： There is provided a negative electrode for a nonaqueous electrolyte secondary battery in which when a battery is formed, the energy density is high, and moreover, the decrease in charge and discharge capacity is small even if charge and discharge are repeated. By using silicon oxide particles having a particle diameter in a particular range as a starting raw material, and heating these particles in the range of 850° C. to 1050° C., Si microcrystals are deposited on the surfaces of the particles. Then, by performing doping of Li, a structure comprising a plurality of protrusions having height and cross-sectional area in a particular range is formed on the surfaces. The average value of the height of the above protrusions is 2% to 19% of the average particle diameter of the above lithium-containing silicon oxide particles. By using the lithium-containing silicon oxide particles obtained by the above means as a negative electrode active material, a negative electrode for a nonaqueous electrolyte secondary battery is fabricated.
摘要翻译：提供了一种非水电解质二次电池的负极，其中当形成电池时，能量密度高，此外，即使重复进行充放电，充电和放电容量的降低也很小。通过使用具有特定范围的粒径的氧化硅粒子作为起始原料，并将这些粒子加热到850℃〜1050℃的范围内，在微粒的表面上淀积Si微晶。然后，通过进行Li的掺杂，在表面上形成包括具有特定范围的高度和横截面积的多个突起的结构。上述突起的高度的平均值为上述含锂二氧化硅粒子的平均粒径的2〜19％。通过使用通过上述方法获得的含锂氧化硅颗粒作为负极活性材料，制造了非水电解质二次电池用负极。

10. 发明授权

US09018916B2 Lithium secondary battery and control system therefor, and method for detecting state of lithium secondary battery 有权
标题翻译：锂二次电池及其控制系统，以及锂二次电池的状态检测方法
公开(公告)号：US09018916B2
公开(公告)日：2015-04-28
申请号：US13811837
申请日：2011-07-20
申请人： Jiro Iriyama , Tetsuya Kajita , Daisuke Kawasaki , Ryuichi Kasahara , Tatsuji Numata
发明人： Jiro Iriyama , Tetsuya Kajita , Daisuke Kawasaki , Ryuichi Kasahara , Tatsuji Numata
IPC分类号： H02H3/24 , G01R31/36 , H01M4/485 , H01M10/44 , H01M10/48 , G06F17/15 , H02J7/00
CPC分类号： H01M10/48 , G01R31/362 , G01R31/3648 , G06F17/15 , H01M4/485 , H01M10/44 , H02J7/00 , H02J7/007 , Y02E60/122 , Y02P70/54
摘要： There is provided a control system for a lithium secondary battery that can quantitatively sense a deterioration state inherent in a lithium secondary battery using silicon oxide as a negative electrode active material, that is, the nonuniform reaction state of a negative electrode. A control system for a lithium secondary battery including a positive electrode, a negative electrode using silicon oxide as a negative electrode active material, and a lithium reference electrode having a reference potential with respect to the negative electrode includes measurement means for measuring a voltage V of the negative electrode with respect to the lithium reference electrode and a discharge capacity Q of the lithium secondary battery during discharge of the lithium secondary battery; generation means for generating a V-dQ/dV curve representing a relationship between dQ/dV, which is a proportion of an amount of change dQ in the discharge capacity Q to an amount of change dV in the voltage V, and the voltage V; calculation means for calculating an intensity ratio of two peaks appearing on the V-dQ/dV curve for two voltage values in the voltage V; and sensing means for sensing a state of the negative electrode utilizing the intensity ratio.
摘要翻译：提供了一种锂二次电池的控制系统，其可以使用氧化硅作为负极活性物质，即负极的不均匀的反应状态来定量地感测锂二次电池固有的劣化状态。一种锂二次电池的控制系统，包括正电极，使用氧化硅作为负电极活性材料的负极和相对于负电极具有参考电位的锂参比电极，包括用于测量电压V的电压V的测量装置相对于锂参考电极的负极和锂二次电池放电期间的锂二次电池的放电容量Q; 用于产生表示作为放电容量Q中的变化量dQ与电压V中的变化量dV的比例的dQ / dV与电压V之间的关系的V-dQ / dV曲线的生成装置; 用于计算在V-dQ / dV曲线上出现的两个电压在电压V中的两个电压值的强度比的计算装置; 以及感测装置，用于利用强度比来感测负极的状态。

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