Lithium iron phosphate having olivine structure and method for preparing the same
    81.
    发明授权
    Lithium iron phosphate having olivine structure and method for preparing the same 有权
    具有橄榄石结构的磷酸铁锂及其制备方法

    公开(公告)号:US09458016B2

    公开(公告)日:2016-10-04

    申请号:US12709200

    申请日:2010-02-19

    摘要: Provided is an olivine-type lithium iron phosphate composed of secondary particles having a mean particle diameter (D50) of 5 to 100 μm, formed by aggregation of primary particles having a mean particle diameter (D50) of 50 to 550 nm, wherein the primary and secondary particles have a composition represented by Formula I below and the secondary particles have a porosity of 15 to 40%: Li1+aFe1−xMx(PO4−b)Xb (I) wherein M is selected from Al, Mg, Ni, Co, Mn, Ti, Ga, Cu, V, Nb, Zr, Ce, In, Zn, Y and combinations thereof; X is selected from F, S, N and combinations thereof; −0.5≦a≦+0.5; 0≦x≦0.5; and 0≦b≦0.1.

    摘要翻译: 本发明提供一种由平均粒径(D50)为5〜100μm的二次粒子组成的橄榄石型磷酸铁锂,其特征在于,其平均粒径(D50)为50〜550nm的一次粒子的聚集形成, 二次粒子具有下述式I所示的组成,二次粒子的孔隙率为15〜40%:Li1 + aFe1-xMx(PO4-b)Xb(I)其中M选自Al,Mg,Ni,Co ,Mn,Ti,Ga,Cu,V,Nb,Zr,Ce,In,Zn,Y及其组合; X选自F,S,N及其组合; -0.5≤a≤+ 0.5; 0≤x≤0.5; 0≤b≤0.1。

    High power secondary battery system comprising asymmetric charged cells
    83.
    发明授权
    High power secondary battery system comprising asymmetric charged cells 有权
    包括不对称带电电池的大功率二次电池系统

    公开(公告)号:US08846224B2

    公开(公告)日:2014-09-30

    申请号:US12917631

    申请日:2010-11-02

    摘要: Disclosed herein is a battery system including two or more kinds of cell lines having different charge and discharge characteristics, wherein each cell line includes one or more battery cells connected in series with each other. In the battery system according to the present invention, the battery cells of at least one cell line exhibit a high-rate charge characteristic, whereas the battery cells of at least another cell line exhibit a high-rate discharge characteristic. Consequently, the high-rate charge and discharge characteristics are improved, and the balance between the charge and discharge characteristics is maintained, whereby the battery system according to the present invention is used as a power source having a high power.

    摘要翻译: 这里公开了包括具有不同充电和放电特性的两种或更多种细胞系的电池系统,其中每个电池线包括彼此串联连接的一个或多个电池单元。 在根据本发明的电池系统中,至少一个电池线路的电池单元呈现高速率充电特性,而至少另一个电池线路的电池单元表现出高速率放电特性。 因此,提高了高速率充放电特性,并且保持了充放电特性之间的平衡,由此将根据本发明的电池系统用作具有高功率的电源。

    Stoichiometric Lithium Cobalt Oxide and Method for Preparation of the Same
    86.
    发明申请
    Stoichiometric Lithium Cobalt Oxide and Method for Preparation of the Same 有权
    化学计量氧化钴钴及其制备方法

    公开(公告)号:US20070218363A1

    公开(公告)日:2007-09-20

    申请号:US11688636

    申请日:2007-03-20

    IPC分类号: H01M4/52 C01G51/04

    摘要: The present invention provides a LiCoO2-containing powder comprising LiCoO2 having a stoichiometric composition via heat treatment of a lithium cobalt oxide and a lithium buffer material to make equilibrium of a lithium chemical potential therebetween: a lithium buffer material which acts as a Li acceptor or a Li donor to remove or supplement Li-excess or Li-deficiency, coexisting with a stoichiometric lithium metal oxide; and a method for preparing a LiCoO2-containing powder. Further, provided is an electrode comprising the above-mentioned LiCoO2-containing powder as an active material, and a rechargeable battery comprising the same electrode.The present invention enables production of a LiCoO2 electrode active material which has improved high-temperature storage properties and high-voltage cycling properties, and is robust in composition fluctuation in the production process. Therefore, the present invention provides advantages such as reduction of time and labor required for quality control and process management in the mass-production of the electrode active material, and decreased production costs of LiCoO2.

    摘要翻译: 本发明通过热处理锂钴氧化物和锂缓冲材料提供包含具有化学计量组成的LiCoO 2 N 2的含LiCoO 2 N的粉末,以使锂的平衡 它们之间的化学势:用作Li受体或Li给体以除去或补充Li-过量或Li-缺乏的锂缓冲材料,与化学计量的锂金属氧化物共存; 以及制备含有LiCoO 2 N的粉末的方法。 此外,提供了包含上述含有LiCoO 2 N 2的粉末作为活性材料的电极和包含相同电极的可再充电电池。 本发明能够生产具有改进的高温储存性能和高电压循环性能的LiCoO 2 N 2电极活性材料,并且在生产过程中的组成波动中是稳定的。 因此,本发明提供了在电极活性物质的批量生产中减少质量控制和工艺管理所需的时间和劳动以及降低LiCoO 2 2的生产成本的优点。

    Non-aqueous electrolyte additive for improving safety and lithium ion secondary battery comprising the same
    87.
    发明授权
    Non-aqueous electrolyte additive for improving safety and lithium ion secondary battery comprising the same 有权
    用于改进安全性的非水电解质添加剂和包含该非水电解质添加剂的锂离子二次电池

    公开(公告)号:US07217477B2

    公开(公告)日:2007-05-15

    申请号:US10312674

    申请日:2002-05-22

    IPC分类号: H01M6/18 H01M6/16

    摘要: The present invention relates to a non-aqueous electrolyte additive for improving safety and a lithium secondary battery comprising the same, and more particularly to a non-aqueous electrolyte additive that can improve cycle life and safety properties of a lithium ion secondary battery.According to the present invention, an organometallic compound represented by the Chemical Formula 1 is added to a non-aqueous electrolyte of a battery as an additive, and thus if a battery voltage is out of normal operation voltage range due to a short circuit and overcharge of a battery, etc., the non-aqueous electrolyte additive decomposes and a part of the decomposed additive polymerizes to form an insulating film on a cathode surface, and a part of the metal reacts with an insulating film formed on a cathode surface to improve thermal stability of the battery, thereby improving safety of the battery. Furthermore, in case of a short circuit a part of the metal oxide of the additive is removed an activity of lithium or is reduced movement speed of lithium by reacting with lithium rushed from an anode to a cathode, and thus safety of the battery can be obtained on a short circuit by delaying a flow of current.

    摘要翻译: 本发明涉及一种用于提高安全性的非水电解质添加剂和包含该非水电解质添加剂的锂二次电池,更具体地说涉及一种能够改善锂离子二次电池的循环寿命和安全性能的非水电解质添加剂。 根据本发明,将由化学式1表示的有机金属化合物作为添加剂添加到电池的非水电解质中,因此如果电池电压由于短路和过充电而超出正常工作电压范围 的电池等,非水电解质添加剂分解,一部分分解添加剂聚合,在阴极表面形成绝缘膜,一部分金属与阴极表面形成的绝缘膜反应,从而提高 电池的热稳定性,从而提高电池的安全性。 此外,在短路的情况下,添加剂的金属氧化物的一部分除去锂的活性或通过与从阳极冲出的阴极反应的锂的移动速度降低,因此电池的安全性可以是 通过延迟电流来在短路上获得。

    Battery system containing phase change material-containing capsules in interior configuration thereof
    90.
    发明申请
    Battery system containing phase change material-containing capsules in interior configuration thereof 有权
    含有相变材料的胶囊的内部结构的电池系统

    公开(公告)号:US20060063066A1

    公开(公告)日:2006-03-23

    申请号:US11197025

    申请日:2005-08-04

    IPC分类号: H01M10/50

    摘要: Provided is a battery system in which an interior part of a battery structure includes particles (phase-change particles) containing materials (phase-change materials) having a high latent heat of phase change at a specific temperature, contained in a capsule made of an inert material. The battery system in accordance with the present invention can prolong a service life of the battery by inhibiting temperature elevation inside the battery under normal operating conditions without substantial effects on size, shape and performance of the battery, and further, can inhibit the risk of explosion resulting from a sharp increase in temperature inside the battery under abnormal operating conditions, thereby contributing to battery safety.

    摘要翻译: 提供一种电池系统,其中电池结构的内部部分包括含有在特定温度下具有高相变潜热的材料(相变材料)的颗粒(相变颗粒),该材料(相变材料)包含在由 惰性材料。 根据本发明的电池系统可以通过在正常操作条件下抑制电池内的温度升高而延长电池的使用寿命,而不会对电池的尺寸,形状和性能产生实质影响,并且还可以抑制爆炸的风险 这是由于在异常操作条件下电池内部的温度急剧升高,从而有助于电池安全。