Non-aqueous electrolyte and lithium secondary battery using the same
    1.
    发明申请
    Non-aqueous electrolyte and lithium secondary battery using the same 有权
    非水电解质和锂二次电池使用相同

    公开(公告)号:US20070141475A1

    公开(公告)日:2007-06-21

    申请号:US10588481

    申请日:2004-02-10

    IPC分类号: H01M10/40 H01M4/58

    摘要: The present invention relates to a nonaqueous electrolyte solution containing new additives and a lithium secondary battery including the same. More particularly, the invention relates to a nonaqueous electrolyte solution containing a lithium salt, an electrolyte compound, a first additive compound with an oxidation initiation potential of more than 4.2 V, and a second additive compound with an oxidation initiation potential of more than 4.2 V, which is higher in oxidation initiation potential than the first additive, and deposits oxidative products or form a polymer film, in oxidation, as well as a lithium secondary battery including the same. The present invention can provide a lithium secondary battery excellent in both the battery performance and the battery safety in overcharge by the combined use of the first additive and the second battery as additives to the nonaqueous electrolyte solution.

    摘要翻译: 本发明涉及含有新添加剂的非水电解液和包含该添加剂的锂二次电池。 更具体地说,本发明涉及含有锂盐,电解质化合物,氧化起始电位大于4.2V的第一添加剂化合物和氧化起始电位大于4.2V的第二添加剂化合物的非水电解质溶液 ,其氧化起始电位高于第一添加剂,并且氧化产生氧化物或形成聚合物膜,以及包含其的锂二次电池。 本发明可以通过将第一添加剂和第二电池作为添加剂与非水电解质溶液的组合使用,提供在电池性能和电池安全性方面优异的锂二次电池。

    Non-aqueous electrolyte and lithium secondary battery using the same
    3.
    发明授权
    Non-aqueous electrolyte and lithium secondary battery using the same 有权
    非水电解质和锂二次电池使用相同

    公开(公告)号:US08142936B2

    公开(公告)日:2012-03-27

    申请号:US10588481

    申请日:2004-02-10

    IPC分类号: H01M6/18

    摘要: The present invention relates to a nonaqueous electrolyte solution containing new additives and a lithium secondary battery including the same. More particularly, the invention relates to a nonaqueous electrolyte solution containing a lithium salt, an electrolyte compound, a first additive compound with an oxidation initiation potential of more than 4.2 V, and a second additive compound with an oxidation initiation potential of more than 4.2 V, which is higher in oxidation initiation potential than the first additive, and deposits oxidative products or form a polymer film, in oxidation, as well as a lithium secondary battery including the same. The present invention can provide a lithium secondary battery excellent in both the battery performance and the battery safety in overcharge by the combined use of the first additive and the second battery as additives to the nonaqueous electrolyte solution.

    摘要翻译: 本发明涉及含有新添加剂的非水电解质溶液和包含该添加剂的锂二次电池。 更具体地说,本发明涉及含有锂盐,电解质化合物,氧化起始电位大于4.2V的第一添加剂化合物和氧化起始电位大于4.2V的第二添加剂化合物的非水电解质溶液 ,其氧化起始电位高于第一添加剂,并且氧化产生氧化物或形成聚合物膜,以及包含其的锂二次电池。 本发明可以通过将第一添加剂和第二电池作为添加剂与非水电解质溶液的组合使用,提供在电池性能和电池安全性方面优异的锂二次电池。

    Non-aqueous electrolyte and secondary battery comprising the same
    4.
    发明授权
    Non-aqueous electrolyte and secondary battery comprising the same 有权
    非水电解质和包含该非水电解质的二次电池

    公开(公告)号:US09093720B2

    公开(公告)日:2015-07-28

    申请号:US12097226

    申请日:2006-12-13

    摘要: Disclosed is a non-aqueous electrolyte comprising: a non-aqueous cyclic solvent; a catalyst for polymerization, which is activated depending on temperature or voltage to induce the polymerization of the non-aqueous cyclic solvent; and an electrolyte salt. Also, a secondary battery comprising the non-aqueous electrolyte is disclosed. The non-aqueous electrolyte does not influence the performance of the battery at the normal operating temperature and voltage of the secondary battery. However, when the battery misoperates due to high temperature or overcharge, the polymerization of the non-aqueous cyclic solvent can occur due to the catalyst for polymerization contained in the non-aqueous electrolyte, at a specific temperature or voltage, to increase the resistance of the electrolyte and reduce the ion conductivity of the electrolyte, thus increasing the safety of the battery.

    摘要翻译: 公开了一种非水电解质,其包含:非水性环状溶剂; 用于聚合的催化剂,其根据温度或电压被活化以引起非水性环状溶剂的聚合; 和电解质盐。 此外,公开了包含非水电解质的二次电池。 非水电解质不影响二次电池正常工作温度和电压下的电池性能。 然而,当电池由于高温或过充电而失效时,由于非水电解质中包含的聚合催化剂在特定温度或电压下,可能会发生非水性环状溶剂的聚合,从而增加电阻 电解质,降低电解质的离子传导性,从而提高电池的安全性。

    Electrochemical device comprising aliphatic nitrile compound
    5.
    发明授权
    Electrochemical device comprising aliphatic nitrile compound 有权
    包含脂族腈化合物的电化学装置

    公开(公告)号:US08372550B2

    公开(公告)日:2013-02-12

    申请号:US11034747

    申请日:2005-01-14

    IPC分类号: H01M6/16

    摘要: The present invention provides a cathode having a protection layer formed by a complex between the surface of a cathode active material and an aliphatic nitrile compound, as well as an electrochemical device comprising the cathode. Also, the present invention provides an electrochemical device comprising: (1) a cathode having a protection layer formed by a complex between the surface of a cathode active material and an aliphatic nitrile compound; (2) an anode having a passivation layer formed by a compound selected from the group consisting of vinylene carbonate, its derivative and an ether compound; and (3) an electrolyte solution containing a lithium salt and a solvent.

    摘要翻译: 本发明提供一种具有由正极活性物质的表面与脂肪族腈化合物的配合物形成的保护层的阴极以及包含该阴极的电化学装置。 另外,本发明提供一种电化学装置,其特征在于,包括:(1)阴极,具有由正极活性物质的表面与脂肪族腈化合物的配合物形成的保护层; (2)具有由选自碳酸亚乙烯酯,其衍生物和醚化合物的化合物形成的钝化层的阳极; 和(3)含有锂盐和溶剂的电解液。

    Organic/inorganic composite porous layer-coated electrode and electrochemical device comprising the same
    7.
    发明授权
    Organic/inorganic composite porous layer-coated electrode and electrochemical device comprising the same 有权
    有机/无机复合多孔层被覆电极及包含该电极的电化学装置

    公开(公告)号:US07682740B2

    公开(公告)日:2010-03-23

    申请号:US11051610

    申请日:2005-02-04

    IPC分类号: H01M4/62 H01M4/02 H01M2/16

    摘要: Disclosed is an electrode comprising a first organic/inorganic composite porous coating layer formed on its surface, wherein the first coating layer includes inorganic particles and a binder polymer for interconnecting and fixing the inorganic particles, and has micropores formed by interstitial volumes among the inorganic particles. An electrochemical device including the same electrode is also disclosed. Further, disclosed is a method for manufacturing an electrode having an organic/inorganic composite porous coating layer on the surface thereof, comprising the steps of: (a) coating a current collector with slurry containing an electrode active material and drying it to provide an electrode; and (b) coating the surface of electrode obtained from step (a) with a mixture of inorganic particles with a binder polymer. A lithium secondary battery including the electrode shows improved safety and minimized degradation in battery performance.

    摘要翻译: 公开了一种电极,其包括在其表面上形成的第一有机/无机复合多孔涂层,其中第一涂层包括无机颗粒和用于互连和固定无机颗粒的粘合剂聚合物,并且具有由无机颗粒之间的间隙体积形成的微孔 。 还公开了包括相同电极的电化学装置。 此外,公开了一种在其表面上制造具有有机/无机复合多孔涂层的电极的方法,包括以下步骤:(a)用含有电极活性材料的浆料涂布集电体并干燥以提供电极 ; 和(b)用无机颗粒与粘合剂聚合物的混合物涂覆由步骤(a)得到的电极的表面。 包括电极的锂二次电池显示出提高的电池性能的安全性和最小化的劣化。

    Surface-treated microporous membrane and electrochemical device prepared thereby
    8.
    发明授权
    Surface-treated microporous membrane and electrochemical device prepared thereby 有权
    由此制备表面处理的微孔膜和电化学装置

    公开(公告)号:US08841031B2

    公开(公告)日:2014-09-23

    申请号:US11721020

    申请日:2005-12-07

    IPC分类号: H01M2/16 H01M2/18 H01M10/0525

    摘要: Disclosed is a porous film comprising: (a) a porous substrate having pores; and (b) a coating layer formed on at least one region selected from the group consisting of a surface of the substrate and a part of the pores present in the substrate, wherein the coating layer comprises styrene-butadiene rubber. An electrochemical device using the porous film as a separator is also disclosed. The porous film is coated with a styrene-butadiene polymer, whose rubbery characteristics can be controlled, and thus provides improved scratch resistance and adhesion to other substrates. When the porous film is used as a separator for an electrochemical device, it is possible to improve the safety of the electrochemical device and to prevent degradation in the quality of the electrochemical device.

    摘要翻译: 公开了一种多孔膜,其包括:(a)具有孔的多孔基材; 和(b)在选自基材的表面和存在于基材中的一部分孔的至少一个区域上形成的涂层,其中所述涂层包含苯乙烯 - 丁二烯橡胶。 还公开了使用多孔膜作为隔膜的电化学装置。 该多孔膜涂覆有可以控制其橡胶特性的苯乙烯 - 丁二烯聚合物,从而提供改善的耐擦伤性和与其它基材的粘合性。 当多孔膜用作电化学装置的隔膜时,可以提高电化学装置的安全性并防止电化学装置的质量下降。

    Copper collector for secondary battery comprising Cu-nitrile compound complex formed on surface thereof
    9.
    发明授权
    Copper collector for secondary battery comprising Cu-nitrile compound complex formed on surface thereof 有权
    包含在其表面上形成的Cu-腈化合物络合物的二次电池用铜收集器

    公开(公告)号:US08192872B2

    公开(公告)日:2012-06-05

    申请号:US11292711

    申请日:2005-12-01

    CPC分类号: H01M4/661 H01M10/0525

    摘要: Disclosed are copper foil or net comprising a Cu-nitrile compound complex formed on the surface thereof, a method for preparing the same, and a lithium secondary battery that comprises an electrode using the same copper foil or net as a collector. The lithium secondary battery, which uses a copper collector comprising a Cu-nitrile compound complex formed on the surface thereof through the application of a certain voltage level, can prevent the corrosion of Cu occurring at a voltage of 3.6V or higher under overdischarge conditions away from the normal drive condition, and thus can significantly improve the capacity restorability after overdischarge.

    摘要翻译: 公开了包括在其表面形成的Cu-腈化合物络合物的铜箔或网,其制备方法和包含使用相同铜箔或网作为集电体的电极的锂二次电池。 使用包含通过施加一定电压值形成在其表面上的Cu-腈化合物络合物的铜收集器的锂二次电池可以防止在过放电条件下在3.6V或更高的电压下发生的Cu的腐蚀 从正常驱动条件,从而可以显着提高过放电后的容量恢复性。