公开(公告)号：US20090130566A1

公开(公告)日：2009-05-21

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： H01M6/16

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：US20110229751A1

公开(公告)日：2011-09-22

申请号：US13038790

申请日：2011-03-02

申请人： Noriko YAMASHITA ,  Masato IWANAGA

发明人： Noriko YAMASHITA ,  Masato IWANAGA

IPC分类号： H01M2/16

CPC分类号： H01M2/1653 ,  H01M2/166 ,  H01M2/1686 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0025 ,  Y02T10/7011

摘要： A nonaqueous electrolyte secondary battery includes a positive electrode plate, a negative electrode plate, a separator, and a nonaqueous electrolytic solution. The separator is constituted of a polyolefin microporous membrane constituted of two or more layers of stacked film containing polyethylene and polypropylene, one or both of the surface layers has a polypropylene mixture proportion exceeding 50% by mass and contains inorganic particles, and the nonaqueous electrolytic solution contains a dinitrile compound expressed by CN—(CH2)n—CN (where n≧1 and n is an integer). Thus, the nonaqueous electrolyte secondary battery that even when stored at high temperature in a charged state is not prone to positive electrode degradation and has a large post-high temperature storage capacity recovery rate and good cycling characteristics can be provided.

摘要翻译： 非水电解质二次电池包括正极板，负极板，隔板和非水电解液。 隔膜由聚乙烯和聚丙烯的两层以上的叠层膜构成的聚烯烃微多孔膜构成，其中一个或两个表面层的聚丙烯混合比例超过50质量％，含有无机颗粒，非水电解液 含有CN-（CH2）n-CN（其中n≥1且n为整数）表示的二腈化合物。 因此，即使在充电状态的高温下保存的非水电解质二次电池也不容易发生正极劣化，并且具有大的后高温存储容量回收率和良好的循环特性。

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：US20080261117A1

公开(公告)日：2008-10-23

申请号：US12038567

申请日：2008-02-27

申请人： Masato IWANAGA ,  Nobumichi NISHIDA ,  Satoshi YAMAMOTO

发明人： Masato IWANAGA ,  Nobumichi NISHIDA ,  Satoshi YAMAMOTO

IPC分类号： H01M10/26 ,  H01M4/40

CPC分类号： H01M4/136 ,  H01M4/5825 ,  H01M4/621 ,  H01M10/052 ,  H01M10/0569 ,  H01M2300/0025

摘要： A non-aqueous electrolyte secondary cell having a high cycle characteristic and excellence in continuous charging characteristic at high potential is provided. The non-aqueous electrolyte secondary cell comprises 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 electrolytic salt. The positive electrode contains lithium phosphate. The non-aqueous solvent contains a halogenated ethylene carbonate compound represented by chemical formula 1: where W, X, Y, and Z independently represent a halogen or a hydrogen atom, at least one selected from W, X, Y, and Z being a halogen.

摘要翻译： 提供具有高循环特性和高电位连续充电特性优异的非水电解质二次电池。 非水电解质二次电池包括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。 正极含有磷酸锂。 非水溶剂含有化学式1表示的卤代碳酸亚乙酯化合物：其中W，X，Y和Z独立地表示卤素或氢原子，选自W，X，Y和Z中的至少一种为 卤素。