公开(公告)号：JP2011210433A

公开(公告)日：2011-10-20

申请号：JP2010075076

申请日：2010-03-29

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MACHIDA MASANORI

IPC: H01M10/058 ,  H01M10/0565

CPC classification number: Y02E60/12

Abstract: PROBLEM TO BE SOLVED: To improve the safety of a nonaqueous electrolyte cell without deteriorating cell characteristics.SOLUTION: A nonaqueous electrolyte constituent includes: an electrolyte salt; a nonaqueous solvent; a matrix macromolecule; and ceramic powder. When a negative pole side electrolyte provided on a negative pole includes ceramic powder with higher thermal conductivity than that of a positive pole side electrolyte provided on a positive pole or when the ceramic powder is employed in the positive pole side electrolyte and a negative pole side electrolyte, the negative pole side electrolyte contains a larger amount of ceramic powder than the positive pole side electrolyte. As the ceramic power, specifically, at least one selected from a group of alumina (AlO), zirconia (ZrO), titania (TiO), silica (SiO), magnesia (MgO), silicon carbide (SiC), boron nitride (BN), and aluminum nitride (AlN) is used.

Abstract translation: 要解决的问题：提高非水电解质电池的安全性，而不会使电池特性恶化。解决方案：非水电解质成分包括：电解质盐; 非水溶剂; 基质大分子; 和陶瓷粉。 当设置在负极上的负极侧电解质包含陶瓷粉末，该陶瓷粉末的导热系数高于设置在正极上的正极侧电解质的陶瓷粉末，或陶瓷粉末用于正极侧电解质和负极侧电解质 负极侧电解质含有比正极侧电解质更多的陶瓷粉末。 作为陶瓷功率，具体地说，选自氧化铝（AlO），氧化锆（ZrO），二氧化钛（TiO），二氧化硅（SiO），氧化镁（MgO），碳化硅（SiC），氮化硼 ）和氮化铝（AlN）。

公开(公告)号：JP2010198757A

公开(公告)日：2010-09-09

申请号：JP2009038990

申请日：2009-02-23

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MACHIDA MASANORI

IPC: H01M10/056 ,  H01M10/052 ,  H01M10/058

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte composition for increasing strength (weighting) until internal short-circuit occurs without deteriorating electrical characteristics, and a nonaqueous secondary battery using the nonaqueous electrolyte.
SOLUTION: This nonaqueous electrolyte composition contains electrolyte salt, a nonaqueous solvent, a matrix polymer, and ceramic powder. The average particle diameter of the ceramic powder is 0.1-2.5 μm, and its BET specific surface area is 0.5-11 m
2 /g. The ceramic powder is at least one selected from a group composed of alumina, zirconia, titania, and magnesia. The content ratio of the ceramic powder and the matrix polymer is ≥1/1 and

Abstract translation: 要解决的问题：提供一种非水电解质组合物，用于提高强度（加权），直到发生内部短路而不劣化电气特性，以及使用非水电解质的非水二次电池。 解决方案：该非水电解质组合物含有电解质盐，非水溶剂，基质聚合物和陶瓷粉末。 陶瓷粉末的平均粒径为0.1〜2.5μm，BET比表面积为0.5-11m 2 / SP / g。 陶瓷粉末是选自由氧化铝，氧化锆，二氧化钛和氧化镁组成的组中的至少一种。 陶瓷粉末和基质聚合物的含量比按质量比≥1/ 1和<5/1。 电解质盐为锂盐，非水电解液中的锂盐浓度为0.6〜2.0mol / kg。 非水电解质二次电池使用该非水电解质。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2005078963A

公开(公告)日：2005-03-24

申请号：JP2003308757

申请日：2003-09-01

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MACHIDA MASANORI

IPC: H01M4/66 ,  H01M4/13 ,  H01M4/139 ,  H01M10/05 ,  H01M4/02 ,  H01M10/40

CPC classification number: Y02P70/54

Abstract: PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery suppressing dissolution of Cu in a negative current collector and having high reliability.
SOLUTION: The nonaqueous electrolyte secondary battery is equipped with: a positive electrode 10; a negative electrode 20; a separator 30 arranged between the positive electrode 10 and the negative electrode 20; and electrolytes 41, 42 arranged between the positive electrode 10 and the separator 30 and between the negative electrode 20 and the separator 30. The positive electrode 10 has a positive current collector layer 11 and a positive active material layer 12 formed on the positive current collector 11. The negative electrode 20 has a negative current collector 21, a dissolution preventing film 22 formed on the negative current collector 21, and a negative active material 23 formed on the dissolution preventing film 22. By this constitution, capacity deterioration after overdischarge, cycle deterioration, and deterioration by heating are suppressed.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种抑制Cu在负极集电体中的溶解并且具有高可靠性的非水电解质二次电池。 非水电解质二次电池配备有：正极10; 负极20; 配置在正极10和负极20之间的隔膜30; 以及布置在正极10和隔板30之间以及负极20和隔板30之间的电解质41,42。正极10具有正极集电体层11和形成在正极集电体上的正极活性物质层12 负极20具有负极集电体21，形成在负极集电体21上的防溶解膜22和形成在防溶解膜22上的负极活性物质23.通过这种结构，过放电后的容量劣化，循环 劣化和加热劣化被抑制。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2011181354A

公开(公告)日：2011-09-15

申请号：JP2010044803

申请日：2010-03-02

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MACHIDA MASANORI ,  WATANABE HARUO ,  YAMAMOTO FUMIMASA ,  OGAWA YUKI ,  TORIMIZU YUMIKO

IPC: H01M4/62 ,  H01M2/16 ,  H01M4/13 ,  H01M10/052 ,  H01M10/0567

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery with improved cycle characteristics. SOLUTION: The nonaqueous electrolyte battery includes a positive electrode 33, a negative electrode 34, and electrolyte 36. The negative electrode has a negative electrode collector 34A, and a negative electrode active material layer 34B provided on the negative electrode collector. The negative electrode active material layer contains a cross-linked body including vinylidene fluoride as a component. The nonaqueous electrolyte battery contains polyacid and/or a polyacid compound inside. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供具有改善的循环特性的非水电解质电池。 非水电解质电池包括正极33，负极34和电解质36.负极具有设置在负极集电体上的负极集电体34A和负极活性物质层34B。 负极活性物质层含有以偏二氟乙烯为成分的交联体。 非水电解质电池内部含有多酸和/或多酸化合物。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2007172969A

公开(公告)日：2007-07-05

申请号：JP2005367877

申请日：2005-12-21

Applicant: Sony Corp ,  ソニー株式会社

Inventor： UMEHARA MASAKAZU ,  MACHIDA MASANORI

IPC: H01M10/05 ,  H01M10/0565 ,  H01M10/0569

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a battery capable of enhancing characteristics even under high temperature environment and even under low temperature environment. SOLUTION: An electrolyte layer 24 contains an electrolyte and a polymer compound for holding the electrolyte, and becomes in a gel state. An aromatic compound such as ethylene carbonate, propylene carbonate, and diphenyl ether is contained in the electrolyte. The content of a low dielectric constant solvent in the electrolyte is 3 volume% or less. The polymer compound contains a polymer containing vinylidene fluoride such as a copolymer of vinylidene fluoride and hexafluoropropylene, as a main component. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：即使在高温环境下甚至在低温环境下也能提供能够提高特性的电池。 解决方案：电解质层24含有用于保持电解质的电解质和高分子化合物，并且变成凝胶状态。 电解质中含有碳酸亚乙酯，碳酸亚丙酯，二苯醚等芳香族化合物。 电解液中的低介电常数溶剂的含量为3体积％以下。 高分子化合物含有以偏氟乙烯和六氟丙烯的共聚物为主成分的偏氟乙烯的聚合物。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006286431A

公开(公告)日：2006-10-19

申请号：JP2005105733

申请日：2005-04-01

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MACHIDA MASANORI ,  UMEHARA MASAKAZU

IPC: H01M4/02 ,  H01M4/13 ,  H01M10/05 ,  H01M10/0565 ,  H01M10/0587

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte battery with a structure packaging a battery element by a laminate film in which temperature rise inside the battery is suppressed at the time of fracture or when a nail is stuck.
SOLUTION: The battery element is manufactured by forming a polymer electrolyte on respective both faces of a positive electrode of belt-shape coated with a positive electrode active material on both sides and a negative electrode of belt-shape coated with a negative electrode active material on both sides, and laminating and winding through a separator. A positive electrode current collector exposed portion and a negative electrode current collector exposed portion where the active material is not coated with a width of half round or more and one round or less are provided at the 2nd to 5th layer from the outer circumference part side of the battery element. At this time, the positive electrode collector exposed portion and the negative electrode collector exposed portion are arranged so as to be opposed to each other. Otherwise, only the positive electrode collector exposed portion may be provided with a width of half round or more and one round or less at the 2nd to 5th layer from the outer circumference part side of the battery element.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 解决的问题：提供一种非水电解质电池，其结构是通过层压膜包装电池元件，其中在断裂时或当钉子被卡住时，电池内部的温度上升被抑制。 解决方案：电池元件通过在两面涂覆有正极活性物质的带状正电极的两面上形成聚合物电解质，并且带状涂覆有负极的负电极 活性物质在两侧，并通过分离器层压和卷绕。 从第2至第5层的外周部分侧设置正极集电体露出部分和负极集电体露出部分，其中活性材料未涂覆有半圆形或更长且一圈或更小的宽度 电池元件。 此时，正极集电体露出部和负极集电体露出部被配置成彼此相对。 另外，只有正极集电体露出部分可以在电池元件的外周部分侧的第2至第5层处设置为半圆形或更长的一半或更小的宽度。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2004079370A

公开(公告)日：2004-03-11

申请号：JP2002239012

申请日：2002-08-20

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MACHIDA MASANORI ,  TANAKA TAKEHIKO ,  YAMAMOTO YOSHIKATSU ,  SUZUKI KIYOHIKO ,  FUJINO TAKEMASA ,  KOMARU TOKUO

IPC: H01M10/05 ,  H01M4/13 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/40 ,  H01M4/62 ,  H01M4/02 ,  H01M4/58 ,  H01M10/40

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To realize high capacity and an excellent load characteristic with a small amount of binder. SOLUTION: This battery is provided with a pair of electrodes and an electrolyte. At least one of the pair of electrodes is equipped with a first layer 21 containing a binder, and a second layer 22 containing an active material on a collector 20 in that order. The first layer 21 shows strong binding force as compared with the second layer 22. Since the first layer 21 showing the strong binding force is interlaid between the collector 20 and the second layer 22 containing the active material in at least one of electrodes, the second layer 22 can provide strong binding force even if the binder content is small. Since the binder content of the second layer 22 can be small, the capacity can be increased. Even if the thickness of the second layer 22 is increased for the purpose of high capacity, the load capacity is never degraded. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2011181356A

公开(公告)日：2011-09-15

申请号：JP2010044806

申请日：2010-03-02

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YAMAMOTO FUMIMASA ,  WATANABE HARUO ,  MACHIDA MASANORI ,  OGAWA YUKI ,  TORIMIZU YUMIKO

IPC: H01M4/13 ,  H01M2/16 ,  H01M10/0565 ,  H01M10/0567 ,  H01M10/0569

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery, along with a nonaqueous electrolyte, capable of preventing OCV reduction during continuous charge and preventing generation of gas. SOLUTION: The nonaqueous electrolyte battery includes a cathode 11, an anode 12, and electrolyte solution having a nonaqueous solvent and electrolyte salt. The nonaqueous solvent contains propylene carbonate, with a content of 40-80 mass% to the nonaqueous solvent, and polyacid and/or a polyacid compound are added in the battery. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种非水电解质电池以及非水电解质，能够防止连续充电期间的OCV降低并且防止产生气体。 解决方案：非水电解质电池包括阴极11，阳极12和具有非水溶剂和电解质盐的电解质溶液。 非水溶剂含有碳酸亚丙酯，含量为非水溶剂的40-80质量％，并且多元酸和/或多酸化合物加入到电池中。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011159488A

公开(公告)日：2011-08-18

申请号：JP2010019980

申请日：2010-02-01

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MACHIDA MASANORI

IPC: H01M10/0565 ,  H01B1/06 ,  H01M10/058

CPC classification number: H01M10/0565 ,  H01M4/621 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2220/30 ,  H01M2300/0085 ,  H01M2300/0094 ,  Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To increase strength (load) until the occurrence of an internal short circuit without degrading battery characteristics. SOLUTION: The nonaqueous electrolyte composition contains an electrolyte salt, a nonaqueous solvent, a matrix polymer and a ceramic powder having a thermal conductivity of 50 W/(m°C) or higher. The ceramic powder is of at least one kind selected from a group particularly consisting of silicon carbide (SiC), aluminum nitride (AlN) and boron nitride (BN). The average particle size of the ceramic powder is preferably 0.1 μm or more and 2.5 μm or less, and the mixed amount of the ceramic powder, per unit area, is preferably 0.5 mg/cm 2 or more and 3.6 mg/cm 2 or less. The mixed ratio of the ceramic powder to a matrix polymer is preferably 1/1 or more and 6/1 or less in terms of a mass ratio. The electrolyte salt is a lithium salt, and the concentration of the lithium salt in the nonaqueous electrolyte is preferably 0.6 mol/kg or more and 2.0 mol/kg or less. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提高强度（负载）直到发生内部短路而不降低电池特性。 解决方案：非水电解质组合物含有电导率为50W /（m℃）以上的电解质盐，非水溶剂，基质聚合物和陶瓷粉末。 陶瓷粉末是选自由碳化硅（SiC），氮化铝（AlN）和氮化硼（BN）组成的组中的至少一种。 陶瓷粉末的平均粒径优选为0.1μm以上且2.5μm以下，并且每单位面积的陶瓷粉末的混合量优选为0.5mg / cm 2以上， 3.6mg / cm 2以上。 陶瓷粉末与基质聚合物的混合比优选为质量比为1/1以上6:1以下。 电解质盐是锂盐，非水电解质中的锂盐的浓度优选为0.6mol / kg以上且2.0mol / kg以下。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2006156235A

公开(公告)日：2006-06-15

申请号：JP2004347295

申请日：2004-11-30

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MACHIDA MASANORI ,  UMEHARA MASAKAZU

IPC: H01M4/02 ,  H01M4/13 ,  H01M4/62 ,  H01M10/05

CPC classification number: H01M10/4235 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/36 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/637 ,  H01M10/654 ,  H01M2004/021 ,  H01M2004/027

Abstract: PROBLEM TO BE SOLVED: To provide a battery which can suppress the temperature rise, and a negative electrode using it.
SOLUTION: A negative electrode active material layer 12 contains a negative electrode active material, and a polymer in which vinylidene fluoride is made as a binder component. Calorific value by a differential scanning calorimetry when charging the negative active material layer 12 is 500 J/g or less and preferably 400 J/g or less in a range of 230°C or more and 370°C or less. Furthermore, differences between the maximum calorific value and the calorific value at 100°C are 1.70 W/g or less and preferably 1.60 W/g or less.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供可以抑制温度升高的电池和使用它的负极。 解决方案：负极活性物质层12含有负极活性物质，其中偏二氟乙烯作为粘合剂成分的聚合物。 在负极活性物质层12上进行差示扫描量热法的热值在230℃以上且370℃以下的范围内为500J / g以下，优选为400J / g以下。 此外，100℃下的最大发热量和发热量之间的差为1.70W / g以下，优选为1.60W / g以下。 版权所有（C）2006，JPO＆NCIPI