公开(公告)号：US08053109B2

公开(公告)日：2011-11-08

申请号：US12271045

申请日：2008-11-14

申请人： Masato Iwanaga ,  Noriko Yamashita ,  Koji Abe ,  Kazuhiro Miyoshi

发明人： Masato Iwanaga ,  Noriko Yamashita ,  Koji Abe ,  Kazuhiro Miyoshi

IPC分类号： H01M6/04

CPC分类号： H01M10/0567 ,  H01M10/052

摘要： A non-aqueous electrolyte secondary battery has a high initial capacity and excels in cycle characteristics and storage characteristics even when charged until the potential of the positive electrode active material exceeds as high as 4.3V versus lithium. The non-aqueous electrolyte of the secondary battery contains both 1,3-dioxane and a sulfonic acid ester compound.

摘要翻译： 非水电解质二次电池具有高的初始容量，并且即使在充电直到正极活性物质的电位比锂高达4.3V的电位时，其循环特性和存储特性也优异。 二次电池的非水电解质含有1,3-二恶烷和磺酸酯化合物。

公开(公告)号：US20080206652A1

公开(公告)日：2008-08-28

申请号：US12035808

申请日：2008-02-22

申请人： Takeshi ABE ,  Masato IWANAGA

发明人： Takeshi ABE ,  Masato IWANAGA

IPC分类号： H01M6/16

CPC分类号： H01M4/1391 ,  H01M4/131 ,  H01M4/366 ,  H01M4/525 ,  H01M4/62

摘要： A nonaqueous electrolyte secondary battery 10 according to an embodiment of the invention includes a positive electrode 11, a negative electrode 12, a separator 13 and a nonaqueous electrolyte liquid in which not only the positive electrode 11 contains a positive electrode active material charged at or higher than 4.3 V based on lithium and a halogenated cyclic carbonate is added in the nonaqueous electrolyte liquid, but also an inorganic insulating material particle layer is formed on the surface of at least either of the positive electrode 11, the negative electrode 12 and the separator 13. By employing such a constitution in the present invention, a nonaqueous electrolyte secondary battery using a positive electrode charged at a high electric potential of 4.3 V or more based on lithium in which the amount of a generated gas is small even when the battery is overcharged at higher temperatures, and the impact safety and reliability thereof are high, can be provided.

摘要翻译： 根据本发明实施方式的非水电解质二次电池10包括正电极11，负极12，隔膜13和非水电解液，其中不仅正电极11含有正在等于或高于正电极的材料 在非水电解液中添加了基于锂的4.3V以上的卤化环状碳酸酯，并且在正极11，负极12和隔板13中的至少任一方的表面上形成无机绝缘材料粒子层 。 通过在本发明中采用这样一种结构，使用在基于锂的高电位充电4.3V以上的正极的非水电解质二次电池，即使在电池过充电的情况下，发生气体的量也较小 可以提供更高的温度，并且其冲击安全性和可靠性高。

公开(公告)号：US20080081263A1

公开(公告)日：2008-04-03

申请号：US11905095

申请日：2007-09-27

申请人： Keiji Saisho ,  Masato Iwanaga ,  Takeshi Abe

发明人： Keiji Saisho ,  Masato Iwanaga ,  Takeshi Abe

IPC分类号： H01M10/40

CPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0587 ,  H01M2300/004

摘要： A nonaqueous electrolyte secondary battery is obtained in which a potential of a positive-electrode active material in a fully charged condition is 4.4-4.6 V versus metallic lithium and an Li content of the positive-electrode active material at the potential does not exceed 40% of an initial Li content, and which can show improved cycle characteristics and charge-discharge characteristics. The nonaqueous electrolyte secondary battery includes a positive electrode containing a positive-electrode active material, a negative electrode containing a negative-electrode active material, and a nonaqueous electrolyte, wherein a potential of the positive electrode active material in a fully charged condition is 4.4-4.6 V versus metallic lithium, an Li content of the Positive-electrode active material at the potential does not exceed 40% of the initial Li content, and the nonaqueous electrolyte contains an ethylene carbonate derivative represented by the following structural formula 1 wherein at least one of X and Y is a halogen;

摘要翻译： 获得了一种非水电解质二次电池，其中正电极活性材料在完全充电条件下的电位相对于金属锂为4.4-4.6V，并且正电极活性材料在该电势下的Li含量不超过40％ 的初始Li含量，并且可以显示改善的循环特性和充放电特性。 非水电解质二次电池包括含有正极活性物质的正极，含有负极活性物质的负极和非水电解质，其中，所述正极活性物质在充满电条件下的电位为4.4〜 4.6V对金属锂，电位下的正极活性物质的Li含量不超过初始Li含量的40％，非水电解质含有由以下结构式1表示的碳酸亚乙酯衍生物，其中至少一种 的X和Y是卤素;

公开(公告)号：US20060166102A1

公开(公告)日：2006-07-27

申请号：US10509756

申请日：2003-06-23

申请人： Kazuyasu Fujiwara ,  Masatoshi Takahashi ,  Masato Iwanaga

发明人： Kazuyasu Fujiwara ,  Masatoshi Takahashi ,  Masato Iwanaga

IPC分类号： H01M10/40

CPC分类号： H01M10/0569 ,  H01M10/0525 ,  H01M10/0567

摘要： A non-aqueous electrolyte secondary cell that has excellent high-temperature cycle characteristics and that is highly safe enough to prevent overcharge is provided. The non-aqueous electrolyte secondary cell has a positive electrode for reversibly intercalating-deintercalating lithium ions, a negative electrode for reversibly intercalating-deintercalating lithium ions, and a non-aqueous electrolyte having a non-aqueous solvent and an electrolyte salt. The non-aqueous solvent includes a cycloalkylbenzene derivative and an alkylbenzene derivative having a quaternary carbon directly bonded to a benzene ring and not having a cycloalkyl group directly bonded to the benzene ring.

公开(公告)号：US20140017526A1

公开(公告)日：2014-01-16

申请号：US14005954

申请日：2012-03-21

申请人： Masato Iwanaga ,  Atsushi Kaiduka ,  Shun Nomura ,  Kota Ogawa ,  Naoya Tsukamoto

发明人： Masato Iwanaga ,  Atsushi Kaiduka ,  Shun Nomura ,  Kota Ogawa ,  Naoya Tsukamoto

IPC分类号： H01M2/34 ,  H01M10/0569

CPC分类号： H01M2/34 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/44 ,  H01M10/48 ,  H01M2300/0028 ,  Y02T10/7011

摘要： A non-aqueous electrolyte secondary battery system includes a non-aqueous electrolyte secondary battery and a charging control system which has a function of detecting the voltage of the non-aqueous electrolyte secondary battery and disconnecting a charging circuit. The non-aqueous electrolytic solution contains a non-aqueous solvent having a viscosity of 0.6 cP or less at 25° C. in an amount of 35 to 80 vol % inclusive as a non-aqueous solvent and also contains hexamethylene diisocyanate, and the charging control system stops charging when the potential of the positive electrode of the non-aqueous electrolyte secondary battery is 4.35 to 4.6 V inclusive based on lithium. Thus the non-aqueous electrolyte secondary battery system equipped with the non-aqueous electrolyte secondary battery having high charging potential and excellent high-temperature cycling characteristics can be provided.

摘要翻译： 非水电解质二次电池系统包括非水电解质二次电池和具有检测非水电解质二次电池的电压并断开充电电路的功能的充电控制系统。 非水电解液含有25℃下的粘度为0.6cP以下的非水系溶剂，含量为35〜80体积％以外，作为非水系溶剂，还含有六亚甲基二异氰酸酯， 当非水电解质二次电池的正极的电位为4.35〜4.6V（以锂计）时，控制系统停止充电。 因此，可以提供配备有具有高充电电位和优异的高温循环特性的非水电解质二次电池的非水电解质二次电池系统。

公开(公告)号：US20120231344A1

公开(公告)日：2012-09-13

申请号：US13512431

申请日：2010-11-29

申请人： Koji Okushi ,  Yukihiro Oki ,  Masato Iwanaga

发明人： Koji Okushi ,  Yukihiro Oki ,  Masato Iwanaga

IPC分类号： H01M4/13 ,  H01M4/583 ,  H01M4/48

CPC分类号： H01M2/18 ,  H01M4/13 ,  H01M4/366 ,  H01M10/052 ,  Y02T10/7011

摘要： The present invention provides a nonaqueous electrolyte secondary battery that can be charged at high voltage and suppress capacity deterioration after charged storage in a high temperature environment.A nonaqueous electrolyte secondary battery 10 includes a positive electrode sheet 11, a negative electrode sheet 12, a nonaqueous electrolyte, and a separator 13, and the positive electrode active material has a potential of 4.35 to 4.60 V based on lithium. The positive electrode sheet 11 has a surface provided with an inorganic particle layer. The separator 13 has an average pore size of 0.15 μm or more and 0.3 μm or less. It is preferable that the inorganic particle layer provided to the surface of the positive electrode sheet 11 contain titanium oxide or aluminum oxide.

摘要翻译： 本发明提供一种可在高电压下充电并抑制在高温环境下充电保存后的容量劣化的非水电解质二次电池。 非水电解质二次电池10包括正极片11，负极片12，非水电解质和隔膜13，正极活性物质的电位为锂的4.35〜4.60V。 正极片11具有设置无机粒子层的面。 隔板13的平均孔径为0.15μm以上且0.3μm以下。 设置在正极片11的表面的无机粒子层优选含有氧化钛或氧化铝。

公开(公告)号：US20110223489A1

公开(公告)日：2011-09-15

申请号：US13042552

申请日：2011-03-08

申请人： Masato Iwanaga ,  Noriko Yamashita ,  Atsushi Kaiduka ,  Koji Abe ,  Kazuhiro Miyoshi ,  Masahide Kondo

发明人： Masato Iwanaga ,  Noriko Yamashita ,  Atsushi Kaiduka ,  Koji Abe ,  Kazuhiro Miyoshi ,  Masahide Kondo

IPC分类号： H01M10/056

CPC分类号： H01M10/0567 ,  H01M4/525 ,  H01M10/052 ,  H01M10/4235 ,  H01M2300/0025 ,  Y02T10/7011

摘要： A positive electrode active material of a nonaqueous electrolyte secondary battery is composed of lithium-cobalt composite oxide containing at least one of zirconium, titanium, aluminum, and erbium, and the nonaqueous electrolyte includes an additive expressed by General Formula (1) having an acetylene group and a methylsulfonyl group at each end of the molecule. It has the effect of forming an SEI surface film as with the case of VC or the like, as well as having a higher oxidation resistance than that of VC or the like. Thus the nonaqueous electrolyte secondary battery employing as positive electrode active material a lithium-cobalt composite oxide with a particular dissimilar metallic element added, in which decomposition of the nonaqueous electrolytic solution during storage at high temperature in a charged state is suppressed, and there is little battery swelling is provided.

摘要翻译： 非水电解质二次电池的正极活性物质由含有锆，钛，铝，铒中的至少一种的锂钴复合氧化物构成，非水电解质含有通式（1）表示的添加剂，其具有乙炔 基团和分子的每个末端的甲基磺酰基。 与VC等的情况相同，具有形成SEI表面膜的效果，并且具有比VC等更高的抗氧化性。 因此，作为正极活性物质使用添加了特定的异种金属元素的锂 - 钴复合氧化物的非水电解质二次电池，其中抑制了在高温下在充电状态下储存期间非水电解液的分解，并且几乎没有 提供电池膨胀。

公开(公告)号：US20100233525A1

公开(公告)日：2010-09-16

申请号：US12702346

申请日：2010-02-09

申请人： Atsushi Kaiduka ,  Masanori Ogi ,  Yukihiro Oki ,  Masato Iwanaga

发明人： Atsushi Kaiduka ,  Masanori Ogi ,  Yukihiro Oki ,  Masato Iwanaga

IPC分类号： H01M2/02

CPC分类号： H01M10/0431 ,  H01M2/022 ,  H01M2/1673 ,  H01M2/168 ,  Y10T29/49108 ,  Y10T29/49114

摘要： The nonaqueous electrolyte secondary battery includes a rolled electrode assembly 14E formed by rolling a positive electrode plate 11 and a negative electrode plate 12 with a separator 13 interposed therebetween, the separator 13 is fixed on the outermost periphery of the rolled electrode assembly 14E with an adhesive tape for fixing a roll end 30e, an exposed portion of a negative electrode substrate 12c without an active material mixture layer 12b is placed on an outermost periphery side of the negative electrode plate 12, a negative electrode tab 12a is connected to the negative electrode substrate 12c on an outermost periphery side, and the adhesive tape 30e is not overlapped with a roll end 11d of the positive electrode plate 11 and a roll end 12d of the negative electrode substrate 12c. Thus the battery is seldom broken even when charging and discharging are repeatedly provided at high voltage.

摘要翻译： 非水电解质二次电池包括通过将隔板13插入其间的正极板11和负极板12进行轧制而形成的卷绕电极组件14E，隔板13用粘合剂固定在卷绕电极组件14E的最外周上 用于固定辊端30e的带，没有活性物质混合层12b的负电极基板12c的露出部分放置在负极板12的最外周侧，负电极接线片12a连接到负电极基板 12c，并且粘合带30e不与正极板11的辊端部11d和负极基板12c的辊端部12d重叠。 因此，即使在高电压下重复提供充电和放电时，电池也很少损坏。

公开(公告)号：US07745057B2

公开(公告)日：2010-06-29

申请号：US12035808

申请日：2008-02-22

申请人： Takeshi Abe ,  Masato Iwanaga

发明人： Takeshi Abe ,  Masato Iwanaga

IPC分类号： H01M6/16

CPC分类号： H01M4/1391 ,  H01M4/131 ,  H01M4/366 ,  H01M4/525 ,  H01M4/62

摘要： A nonaqueous electrolyte secondary battery 10 according to an embodiment of the invention includes a positive electrode 11, a negative electrode 12, a separator 13 and a nonaqueous electrolyte liquid in which not only the positive electrode 11 contains a positive electrode active material charged at or higher than 4.3 V based on lithium and a halogenated cyclic carbonate is added in the nonaqueous electrolyte liquid, but also an inorganic insulating material particle layer is formed on the surface of at least either of the positive electrode 11, the negative electrode 12 and the separator 13. By employing such a constitution in the present invention, a nonaqueous electrolyte secondary battery using a positive electrode charged at a high electric potential of 4.3 V or more based on lithium in which the amount of a generated gas is small even when the battery is overcharged at higher temperatures, and the impact safety and reliability thereof are high, can be provided.

摘要翻译： 根据本发明实施方式的非水电解质二次电池10包括正电极11，负极12，隔膜13和非水电解液，其中不仅正电极11含有正在等于或高于正电极的材料 在非水电解液中添加了基于锂的4.3V以上的卤化环状碳酸酯，并且在正极11，负极12和隔板13中的至少任一方的表面上形成无机绝缘材料粒子层 通过在本发明中采用这样一种结构，即使使用在基于锂的高电位充电4.3V以上的正极的非水电解质二次电池，即使在电池过充电的情况下，发生气体量少的情况下 在较高的温度下，可以提供其冲击安全性和可靠性。

公开(公告)号：US07704640B2

公开(公告)日：2010-04-27

申请号：US11362225

申请日：2006-02-27

申请人： Keisuke Ooga ,  Masato Iwanaga ,  Hideyuki Inomata ,  Ryuji Ohshita

发明人： Keisuke Ooga ,  Masato Iwanaga ,  Hideyuki Inomata ,  Ryuji Ohshita

IPC分类号： H01M4/58

CPC分类号： H01M10/4235 ,  H01M4/1391 ,  H01M10/0567 ,  H01M2004/021 ,  H01M2004/028

摘要： A non-aqueous electrolyte secondary cell excellent in cycle characteristics is provided. This purpose is achieved by the following structure. A non-aqueous electrolyte secondary cell has a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a non-aqueous electrolyte having a non-aqueous solvent and an electrolytic salt. The positive electrode active material has a lithium-cobalt compound oxide having added therein at least zirconium. The non-aqueous electrolyte has LiBF4 at from 0.05 to 1.0 mass % of a total mass of the non-aqueous electrolyte and unsaturated cyclic carbonate at from 1.0 to 4.0 mass %. The true density ratio of the positive electrode is 0.72 or greater, the true density ratio being represented by formula 1 shown below: (Formula 1) True density ratio=active material apparent density of electrode active material layer÷true density of active material.

摘要翻译： 提供循环特性优异的非水电解质二次电池。 该目的通过以下结构实现。 非水电解质二次电池具有具有正极活性物质的正极，具有负极活性物质的负极和具有非水溶剂和电解质盐的非水电解质。 正极活性物质具有至少添加有锆的锂 - 钴复合氧化物。 非水电解质的LiBF 4的含量为0.05〜1.0质量％，非水电解质和不饱和环状碳酸酯的总质量为1.0〜4.0质量％。 正极的真密度比为0.72以上，真密度比由下式1表示：（式1）真密度比=活性物质活性物质表观密度÷活性物质的真密度。