Non aqueous electrolyte cell
    51.
    发明授权
    Non aqueous electrolyte cell 失效
    非水电解质电池

    公开(公告)号:US4959281A

    公开(公告)日:1990-09-25

    申请号:US399982

    申请日:1989-08-29

    摘要: An improved non-aqueous electrolyte cell is disclosed in which specific carbonaceous material is used as an anode. The carbonaceous material has interlayer spacing d.sub.002 of not less than 3.70 A, true density not larger than 1.70 g/cm.sup.3 and no exothermic peak not less than 700.degree. C. upon differential thermal analysis under air stream. The combination with cathode active material containing Li in an amount not less than 250 mAH/g in term of charging/discharging capacity, provides superior cyclic life characterisitcs and large capacity.

    摘要翻译: 公开了一种改进的非水电解质电池,其中使用特定的碳质材料作为阳极。 碳质材料具有不小于3.70A的层间距d002,真空密度不大于1.70g / cm 3,在空气流下进行差热分析时,不具有不低于700℃的放热峰。 与充电/放电容量不小于250mAH / g的含有Li的阴极活性物质的组合提供优异的循环寿命特性和大容量。

    Battery separator comprising a polyolefin nanofilament porous sheet
    52.
    发明授权
    Battery separator comprising a polyolefin nanofilament porous sheet 有权
    电池隔膜包含聚烯烃纳米丝多孔片

    公开(公告)号:US09074308B2

    公开(公告)日:2015-07-07

    申请号:US13638426

    申请日:2011-04-22

    摘要: Disclosed is a highly safe battery separator, in particular a separator for a lithium ion secondary battery, which reduces internal resistance, achieves good ionic conductivity, prevents passing of electrode active materials, and also prevents electrical short circuit by controlling deposition of lithium metal (dendrite). Also disclosed is a means for stably producing the battery separator with high productivity. Specifically disclosed are: a battery separator which is composed of a porous polyolefin sheet that is formed from a group of polyolefin nanofilaments that have an average filament diameter of less than 1 μm and a filament size distribution of 0.2 or less; and a means for producing the battery separator.

    摘要翻译: 公开了一种高度安全的电池隔板,特别是用于锂离子二次电池的隔板,其降低内阻,实现良好的离子导电性,防止电极活性物质的通过,并且还通过控制锂金属的沉积(枝晶)来防止电短路 )。 还公开了用于以高生产率稳定地生产电池隔膜的方法。 具体公开的是:电池隔板,其由多孔聚烯烃片构成,该多孔聚烯烃片由平均长丝直径小于1μm并且丝尺寸分布为0.2以下的一组聚烯烃纳米丝形成; 以及用于制造电池隔板的装置。

    Secondary battery and electrolyte used therefor
    53.
    发明授权
    Secondary battery and electrolyte used therefor 有权
    二次电池和电解质用于此

    公开(公告)号:US07220518B2

    公开(公告)日:2007-05-22

    申请号:US10314807

    申请日:2002-12-09

    摘要: A secondary battery which exhibits less deterioration of capacity, can maintain high energy densities in high temperature atmospheres, and has high practicality, and an electrolyte used therefor, are provided. The electrolyte contains an anion expressed by (PFaQbRc)−, so degradation of the electrolyte can be prevented. In the formula, Q expresses at least one of CF3, C2F5, and C3F7, and R expresses SO2CF3 and/or SO2C2F5. a, b and c satisfy 1≦a≦5, 0≦b≦5, and, 0≦c≦5, respectively. Furthermore, an anion expressed by N(CnF2n+1SO2)2− is contained, which can further prevent the degradation of the electrolyte. In the formula, n satisfies 1≦n≦2. Therefore, the capacity recovery rate after storage and heavy load discharge maintenance rate are high even in high temperature atmospheres, and high reliability can be obtained.

    摘要翻译: 表现出较少的容量劣化的二次电池可以在高温环境中保持高能量密度,并且具有很高的实用性,并且提供了用于其的电解质。 电解质含有由(PF), - - - - (C)表示的阴离子,因此电解质的降解 可以防止。 在该式中,Q表示CF 3 3,C 2 F 5,和C 3 F 5中的至少一个 R 3表示SO 2 CO 3和/或SO 2 CO 2,或/ SO 2 > F <5> 。 a,b和c分别满足1 <= a <= 5,0 <= b <= 5,和0 <= c <= 5。 此外,由N(C n N n N 2n + 1 SO 2)2 - 表示的阴离子 - ,其可以进一步防止电解质的劣化。 在公式中,n满足1 <= n <= 2。 因此,即使在高温环境下,储存后的容量恢复率和重负荷放电维持率也高,可以获得高可靠性。

    Non-aqueous electrolyte battery
    55.
    发明申请
    Non-aqueous electrolyte battery 审中-公开
    非水电解液电池

    公开(公告)号:US20050019660A1

    公开(公告)日:2005-01-27

    申请号:US10875129

    申请日:2004-06-23

    CPC分类号: H01M10/0525 H01M4/587

    摘要: A non-aqueous electrolyte battery includes a cathode, an anode and a non-aqueous electrolyte. The anode uses as an anode active material graphite whose Gs value obtained by a formula (1) from a surface-enhanced Raman spectrum measured by using an argon laser beam is 20 or smaller. Gs=Hsg/Hsd  (1) (Here, Hsg represents the height of a signal having a peak within a range of 1580 cm−1 to 1620 cm−1 and Hsd represents the height of a signal having a peak within a range of 1350 cm−1 to 1400 cm−1.) Thus, the high capacity, the high filling characteristics and the low temperature load characteristics of an anode material are improved.

    摘要翻译: 非水电解质电池包括阴极,阳极和非水电解质。 阳极使用作为阳极活性物质石墨,其通过使用氩激光束测量的表面增强拉曼光谱,通过式(1)获得的Gs值为20以下。 Gs = Hsg / Hsd(1)(这里,Hsg表示具有在1580cm -1至1620cm -1的范围内的峰值的信号的高度,Hsd表示具有峰值的信号的高度 范围为1350cm -1至1400cm -1)。因此,阳极材料的高容量,高填充特性和低温负载特性得到改善。

    BATTERY SEPARATOR COMPRISING A POLYOLEFIN NANOFILAMENT POROUS SHEET
    57.
    发明申请
    BATTERY SEPARATOR COMPRISING A POLYOLEFIN NANOFILAMENT POROUS SHEET 有权
    包含聚烯烃纳米薄膜多孔片的电池分离器

    公开(公告)号:US20130065133A1

    公开(公告)日:2013-03-14

    申请号:US13638426

    申请日:2011-04-22

    IPC分类号: H01M2/16

    摘要: Disclosed is a highly safe battery separator, in particular a separator for a lithium ion secondary battery, which reduces internal resistance, achieves good ionic conductivity, prevents passing of electrode active materials, and also prevents electrical short circuit by controlling deposition of lithium metal (dendrite). Also disclosed is a means for stably producing the battery separator with high productivity. Specifically disclosed are: a battery separator which is composed of a porous polyolefin sheet that is formed from a group of polyolefin nanofilaments that have an average filament diameter of less than 1 μm and a filament size distribution of 0.2 or less; and a means for producing the battery separator.

    摘要翻译: 公开了一种高度安全的电池隔板,特别是用于锂离子二次电池的隔板,其降低内阻,实现良好的离子导电性,防止电极活性物质的通过,并且还通过控制锂金属的沉积(枝晶)来防止电短路 )。 还公开了用于以高生产率稳定地生产电池隔膜的方法。 具体公开的是:电池隔板,其由多孔聚烯烃片构成,该多孔聚烯烃片由平均长丝直径小于1μm并且丝尺寸分布为0.2以下的一组聚烯烃纳米丝形成; 以及用于制造电池隔板的装置。

    Powdered graphite and nonaqueous electrolyte secondary battery
    58.
    发明授权
    Powdered graphite and nonaqueous electrolyte secondary battery 有权
    粉状石墨和非水电解质二次电池

    公开(公告)号:US07976984B2

    公开(公告)日:2011-07-12

    申请号:US11222616

    申请日:2005-09-09

    IPC分类号: H01M4/96

    摘要: A powdered graphite and a nonaqueous electrolyte secondary battery are provided. A nonaqueous electrolyte secondary battery is provided which has a highly efficient charge and discharge performance and superior cycle properties. Spheroidizing treatment is appropriately performed for natural graphite having a high capacity by grinding and/or applying impact to form a negative electrode active material, and a negative electrode active layer formed therefrom is provided on a metal electrode foil. Subsequently, the metal electrode foil is applied with a magnetic field so that the spheroidized natural graphite is oriented, followed by drying and compression molding, thereby forming a negative electrode. By the use of this negative electrode, a nonaqueous electrolyte secondary battery can be formed having superior battery properties such as the cycle properties and peeling strength.

    摘要翻译: 提供粉状石墨和非水电解质二次电池。 提供了具有高效充放电性能和优异循环性能的非水电解质二次电池。 通过研磨和/或施加冲击形成负极活性物质,适当地对具有高容量的天然石墨进行球化处理,并且在金属电极箔上设置由其形成的负极活性层。 随后,向金属电极箔施加磁场,使球状天然石墨取向,然后进行干燥和压缩成型,从而形成负极。 通过使用该负极,可以形成具有优异的电池特性如循环特性和剥离强度的非水电解质二次电池。