Electrolyte salts for nonaqueous electrolytes
    103.
    发明授权
    Electrolyte salts for nonaqueous electrolytes 有权
    非水电解质电解质盐

    公开(公告)号:US08283074B2

    公开(公告)日:2012-10-09

    申请号:US12192452

    申请日:2008-08-15

    IPC分类号: H01M6/18 H01G9/22

    摘要: Metal complex salts may be used in lithium ion batteries. Such metal complex salts not only perform as an electrolyte salt in a lithium ion batteries with high solubility and conductivity, but also can act as redox shuttles that provide overcharge protection of individual cells in a battery pack and/or as electrolyte additives to provide other mechanisms to provide overcharge protection to lithium ion batteries. The metal complex salts have at least one aromatic ring. The aromatic moiety may be reversibly oxidized/reduced at a potential slightly higher than the working potential of the positive electrode in the lithium ion battery. The metal complex salts may also be known as overcharge protection salts.

    摘要翻译: 金属络合盐可用于锂离子电池。 这样的金属络合盐不仅在溶解性和导电性高的锂离子电池中作为电解质盐进行处理,而且可以作为提供电池组中的各个电池的过充电保护的氧化还原电穿梭和/或作为电解质添加剂提供其它机理 为锂离子电池提供过充保护。 金属络合盐具有至少一个芳香环。 芳族部分可以在略高于锂离子电池中的正极的工作电位的电位下被可逆地氧化/还原。 金属络合盐也可称为过充电保护盐。

    ELECTRODE MATERIALS
    106.
    发明申请
    ELECTRODE MATERIALS 有权
    电极材料

    公开(公告)号:US20110294006A1

    公开(公告)日:2011-12-01

    申请号:US13115308

    申请日:2011-05-25

    IPC分类号: H01M4/02 B05D5/12 H01M4/525

    摘要: A process for forming a surface-treatment layer on an electroactive material includes heating the electroactive material and exposing the electroactive material to a reducing gas to form a surface-treatment layer on the electroactive material, where the surface-treatment layer is a layer of partial reduction of the electroactive material.

    摘要翻译: 在电活性材料上形成表面处理层的方法包括加热电活性材料并将电活性材料暴露于还原气体,以在电活性材料上形成表面处理层,其中表面处理层是部分 还原电活性材料。

    Overcharge protection for electrochemical cells
    107.
    发明授权
    Overcharge protection for electrochemical cells 有权
    电化学电池过充保护

    公开(公告)号:US07785740B2

    公开(公告)日:2010-08-31

    申请号:US11097810

    申请日:2005-04-01

    IPC分类号: H01M10/056

    摘要: The invention relates to an improvement in a cell which is normally susceptible to damage from overcharging comprised of a negative electrode, a positive electrode, and an electrolyte comprised of an overcharge protection salt carried in a carrier or solvent. Representative overcharge protection salts are embraced by the formula: MaQ where M is an electrochemically stable cation selected from the group consisting of alkali metal, alkaline earth metal, tetraalkylammonium, or imidazolium groups, and Q is a borate or heteroborate cluster and a is the integer 1 or 2.

    摘要翻译: 本发明涉及电池的改进,该电池通常容易受到由负载电极,正电极和包含负载在载体或溶剂中的过充电保护盐构成的电解质的过充电的损害。 代表性的过充电保护盐包括下式:其中M是选自碱金属,碱土金属,四烷基铵或咪唑鎓基团的电化学稳定阳离子,Q是硼酸盐或异硼酸盐簇,a是整数 1或2。

    Method and apparatus for preparation of spherical metal carbonates and lithium metal oxides for lithium rechargeable batteries
    110.
    发明授权
    Method and apparatus for preparation of spherical metal carbonates and lithium metal oxides for lithium rechargeable batteries 有权
    用于锂可充电电池的球形金属碳酸盐和锂金属氧化物的制备方法和装置

    公开(公告)号:US07435402B2

    公开(公告)日:2008-10-14

    申请号:US10903514

    申请日:2004-07-30

    IPC分类号: C01B31/24

    摘要: A number of materials with the composition Li1+xNiαMnβCoγM′δO2−zFz (M′=Mg,Zn,Al,Ga,B,Zr,Ti) for use with rechargeable batteries, wherein x is between about 0 and 0.3, α is between about 0.2 and 0.6, β is between about 0.2 and 0.6, γ is between about 0 and 0.3, δ is between about 0 and 0.15, and z is between about 0 and 0.2. Adding the above metal and fluorine dopants affects capacity, impedance, and stability of the layered oxide structure during electrochemical cycling. Another aspect of the invention includes materials with the composition Li1+xNiαCoβMnγM′δOyFz (M′=Mg,Zn,Al,Ga,B,Zr,Ti), where the x is between 0 and 0.2, the α between 0 and 1, the β between 0 and 1, the γ between 0 and 2, the δ between about 0 and about 0.2, the y is between 2 and 4, and the z is between 0 and 0.5.

    摘要翻译: 具有以下组成的多种材料:Li 1 + x Ni 2 O 3 N 2 N 2 C 1 N 2 (M'= Mg,Zn,Al,Ga,B,Zr,Ti),用于可再充电电池,其中 x在约0和0.3之间,α在约0.2和0.6之间,β在约0.2和0.6之间,γ在约0和0.3之间,δ在约0和0.15之间,z在约0和0.2之间。 添加上述金属和氟掺杂剂影响电化学循环期间层状氧化物结构的能力,阻抗和稳定性。 本发明的另一方面包括具有以下组成的材料:具有下式的材料:Li 1 + x Ni 2 O 3 M 1 M 2 M 2 M' (M'= Mg,Zn,Al,Ga,B,Zr,Ti),其中x在 0和0.2之间,α在0和1之间,β在0和1之间,γ在0和2之间,δ在约0和约0.2之间,y在2和4之间,z在0和0.5之间 。