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公开(公告)号：US09768476B2
公开(公告)日：2017-09-19
申请号：US14670971
申请日：2015-03-27
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.
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2.发明授权Lithium secondary battery and control system therefor, and method for detecting state of lithium secondary battery 有权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
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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公开(公告)号：US20130119940A1
公开(公告)日：2013-05-16
申请号：US13811837
申请日：2011-07-20
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.
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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
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5.发明申请NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开用于二次电池的负极及其制造方法和非电解电解质二次电池公开(公告)号：US20130244086A1
公开(公告)日：2013-09-19
申请号：US13820369
申请日：2011-08-25
CPC分类号： H01M4/622 , C22C9/00 , C22C9/02 , H01M4/0404 , H01M4/0471 , H01M4/13 , H01M4/134 , H01M4/139 , H01M4/1395 , H01M4/662 , H01M2004/027
摘要： Provided are a negative electrode for a secondary battery realizing satisfactory cycle characteristics and a method for manufacturing the same, and a nonaqueous electrolyte secondary battery having satisfactory cycle characteristics. A negative electrode for a secondary battery formed by bonding a negative electrode active material to a negative electrode collector with a negative electrode binder, in which the negative electrode binder is a polyimide or a polyamide-imide, and the negative electrode collector is a Cu alloy containing at least one metal (a) selected from the group consisting of Sn, In, Mg and Ag and has a conductivity of 50 IACS % or more. The negative electrode for a secondary battery can be manufactured by a method including forming a negative electrode layer containing the negative electrode active material and the precursor of the negative electrode binder on the negative electrode collector; and bonding the negative electrode active material to the negative electrode collector with the negative electrode binder by curing the precursor of the negative electrode binder at 250 to 350° C.
摘要翻译： 提供一种实现令人满意的循环特性的二次电池用负极及其制造方法以及具有令人满意的循环特性的非水电解质二次电池。 通过将负极活性物质与负极粘合剂（负极粘合剂为聚酰亚胺或聚酰胺 - 酰亚胺）结合的负极活性物质形成的负极，负极集电体为Cu合金 含有选自Sn，In，Mg和Ag中的至少一种金属（a），并且具有50IACS％以上的导电率。 可以通过在负极集电体上形成含有负极活性物质的负极层和负极活性物质的前体的方法来制造二次电池用负极; 并通过在250-350℃固化负极粘合剂的前体，将负极活性物质与负极粘合剂结合。
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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
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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
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。
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8.发明授权公开(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。
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9.发明申请公开(公告)号：US20110244328A1
公开(公告)日：2011-10-06
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： H01M4/134 , H01M4/485 , H01M4/1395 , H01M4/1391
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。
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公开(公告)号：US20120321962A1
公开(公告)日：2012-12-20
申请号：US13579856
申请日：2011-02-18
IPC分类号： H01M10/056 , H01M10/04
CPC分类号： H01M4/134 , H01M4/0445 , H01M4/1395 , H01M4/362 , H01M4/366 , H01M4/386 , H01M4/483 , H01M4/622 , H01M4/625 , H01M10/052 , H01M10/0565 , H01M2300/0085 , Y10T29/4911
摘要： There is provided a polymer secondary battery using silicon and silicon oxide as a negative electrode active material that shows a high capacity retention rate also when a charge and discharge cycle is repeated. A polymer secondary battery including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a polymer-containing gel electrolyte, wherein the negative electrode includes silicon and silicon oxide as a negative electrode active material, and the polymer-containing gel electrolyte is present in voids formed by fine division of particles of the negative electrode active material.
摘要翻译： 提供了使用硅和氧化硅作为负极活性材料的聚合物二次电池，当重复充电和放电循环时也显示出高的容量保持率。 一种聚合物二次电池，包括正极，负极，夹在正极和负极之间的隔膜和含聚合物的凝胶电解质，其中负极包括硅和氧化硅作为负极活性材料，以及 含有聚合物的凝胶电解质存在于由负极活性物质的微粒分割形成的空隙中。
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