METHOD FOR JUDGING QUALITY OF LITHIUM NICKEL COMPOSITE OXIDE AND POSITIVE ELECTRODE USING LITHIUM NICKEL COMPOSITE OXIDE
    2.
    发明申请
    METHOD FOR JUDGING QUALITY OF LITHIUM NICKEL COMPOSITE OXIDE AND POSITIVE ELECTRODE USING LITHIUM NICKEL COMPOSITE OXIDE 失效
    使用锂镍复合氧化物评价镍镍合金氧化物和正极的质量的方法

    公开(公告)号:US20090120163A1

    公开(公告)日:2009-05-14

    申请号:US12268717

    申请日:2008-11-11

    Abstract: A positive electrode active material quality judgment method that can easily and accurately judge the quality of a positive electrode active material used in a non-aqueous electrolyte secondary cell without having to complete the positive electrode. The positive electrode active material quality judgment method includes: heating a positive electrode active material mainly made of a lithium nickel composite oxide to a temperature x (° C.) of 200° C. or higher and 1500° C. or lower; measuring the amount of carbon dioxide gas occurring from the heating; and the positive electrode active material as a suitable positive electrode active material when the positive electrode active material satisfies formulas 1 and 2: y

    Abstract translation: 一种正极活性物质评价方法,其能够容易且准确地判断在非水电解质二次电池中使用的正极活性物质的质量,而无需完成正极。 正极活性物质判​​定方法包括:将主要由锂镍复合氧化物形成的正极活性物质加热至200℃以上且1500℃以下的温度x(℃) 测量从加热发生的二氧化碳气体的量; 正极活性物质满足式1和2时,作为合适的正极活性物质的正极活性物质:<?in-line-formula description =“In-line formula”end =“lead”?> y <( 0.27x-51)/ 1000000(200 <= x <400)公式1 <?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In 公式“end =”lead“?> y <57/1000000(400 <= x <= 1500)公式2 <?in-line-formula description =”In-line Formulas“end =”tail“?> where x是加热温度x(℃),y是在加热至加热温度x(℃)时每1g正极活性物质发生的二氧化碳气体量(摩尔/克)。

    Method of controlling charge and discharge of non-aqueous electrolyte secondary cell
    5.
    发明授权
    Method of controlling charge and discharge of non-aqueous electrolyte secondary cell 有权
    控制非水电解质二次电池充放电的方法

    公开(公告)号:US08253386B2

    公开(公告)日:2012-08-28

    申请号:US10934705

    申请日:2004-09-07

    Abstract: Capacity degradation due to charge/discharge cycles is suppressed in either a non-aqueous electrolyte secondary cell provided with a positive electrode including, as a positive electrode active material, a lithium-transition metal complex oxide having a layered structure and containing at least Ni and Mn as transition metals, and a negative electrode containing a carbon material as a negative electrode active material and having a higher initial charge-discharge efficiency than that of the positive electrode, or an assembled battery having a plurality of cells each of which is the secondary cell. A control circuit incorporated in the secondary cell or the assembled battery, or in an apparatus using the secondary cell or the assembled battery, monitors the voltage of the secondary cell or each of the cells in the assembled battery so that the end-of-discharge voltage of each cell is 2.9 V or higher.

    Abstract translation: 在具有正极的非水电解质二次电池中,由于充电/放电循环而导致的容量劣化被抑制,所述正极包括作为正极活性物质的具有层状结构且至少含有Ni的锂 - 过渡金属复合氧化物 Mn作为过渡金属,以及含有作为负极活性物质的碳材料并且具有比正极更高的初始充放电效率的负极,或具有多个电池的组电池,每个电池均为次级 细胞。 集成在二次电池或组电池中的控制电路,或者在使用二次电池或组电池的装置中,监视蓄电池中的二次电池或各电池的电压,使得放电终止 每个电池的电压为2.9V或更高。

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    7.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非水电解质二次电池

    公开(公告)号:US20120135315A1

    公开(公告)日:2012-05-31

    申请号:US13389218

    申请日:2010-08-06

    Abstract: A non-aqueous electrolyte secondary battery is provided that uses as a positive electrode active material a low-cost lithium-containing transition metal composite oxide containing Ni and Mn as its main components, to improve the output power characteristics so that it can be used suitably for an electric power source for, for example, hybrid electric vehicles. A non-aqueous electrolyte secondary battery has a positive electrode (11) containing a positive electrode active material, a negative electrode (12) containing a negative electrode active material, and a non-aqueous electrolyte solution (14) in which a solute is dissolved in a non-aqueous solvent. In the positive electrode active material, Nb2O5 in which the amount of niobium is 0.5 mol % with respect to the total amount of the transition metals and TiO2 in which the amount of titanium is 0.5 mol % with respect to the total amount of the transition metals are disposed on a surface of Li1.06Ni10.56Mn10.38O2.

    Abstract translation: 提供一种非水电解质二次电池,其使用含有Ni和Mn作为其主要成分的低成本含锂过渡金属复合氧化物作为正极活性物质,以提高输出功率特性,使其可以适当地使用 用于例如混合动力电动车辆的电力源。 非水电解质二次电池具有含有正极活性物质的正极(11),含有负极活性物质的负极(12)和溶解有溶质的非水电解液(14) 在非水溶剂中。 在正极活性物质中,相对于过渡金属的总量,钛的含量相对于过渡金属的总量为0.5摩尔%,其中铌的量为0.5摩尔%的Nb 2 O 5 设置在Li1.06Ni10.56Mn10.38O2的表面上。

    Non-aqueous electrolyte secondary battery
    9.
    发明申请
    Non-aqueous electrolyte secondary battery 审中-公开
    非水电解质二次电池

    公开(公告)号:US20070148550A1

    公开(公告)日:2007-06-28

    申请号:US11645805

    申请日:2006-12-27

    Abstract: Low-temperature charge-discharge performance is improved in a non-aqueous electrolyte secondary battery that employs flake graphite as a negative electrode active material. A non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material capable of intercalating and deintercalating lithium ions, a negative electrode containing a negative electrode active material capable of intercalating and deintercalating lithium ions, and a non-aqueous electrolyte. The negative electrode includes a mixture layer (1) containing, as the negative electrode active material, a graphite material having flake-shaped primary particles, a current collector (3) made of Cu or a Cu alloy, and an intermediate layer (2) disposed between the mixture layer (1) and the current collector (3) and composed of a material that intercalates and deintercalates lithium ions at a nobler potential than the graphite material.

    Abstract translation: 在采用片状石墨作为负极活性物质的非水电解质二次电池中,低温充放电性能得到改善。 非水电解质二次电池包括含有能够插入和脱嵌锂离子的正极活性物质的正极,含有能够插入和脱嵌锂离子的负极活性物质的负极和非水电解质。 负极包括含有作为负极活性物质的具有片状一次粒子的石墨材料,Cu或Cu合金制的集电体(3)和中间层(2)的混合层(1) 设置在混合物层(1)和集电体(3)之间,并且由比石墨材料更贵的电位插入和脱嵌锂离子的材料构成。

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