Methods for extracting elements from a solution

    公开(公告)号:US12180561B2

    公开(公告)日:2024-12-31

    申请号:US16672822

    申请日:2019-11-04

    Abstract: Provided are processes for extracting nickel and lithium from a Ni2+/Li+ solution. The process for extracting nickel and lithium includes providing a Ni2+/Li+ solution comprising an amount of lithium and an amount of nickel, treating the Ni2+/Li+ solution with an alkaline agent to adjust the pH of the Ni2+/Li+ solution to between about 1.0 to about 10.0, and treating the Ni2+/Li+ solution with a nickel selective extractant, the nickel selective extractant suitable to extract nickel from the Ni2+/Li+ solution at said pH to thereby produce a Li+ solution with less than 1000 parts per million Ni2+. Once complete, the process provides for recoverable nickel and/or lithium that may be recycled into batteries or sold for other uses.

    Nickel Hydroxide Positive Electrode for Alkaline Rechargeable Battery
    15.
    发明申请
    Nickel Hydroxide Positive Electrode for Alkaline Rechargeable Battery 有权
    碱性充电电池氢氧化镍正极

    公开(公告)号:US20160233505A1

    公开(公告)日:2016-08-11

    申请号:US14614753

    申请日:2015-02-05

    CPC classification number: H01M4/52 H01M4/32 H01M10/30 H01M10/345

    Abstract: Certain nickel hydroxide active cathode materials for use in alkaline rechargeable batteries are capable of transferring >1.3 electrons per Ni atom under reversible electrochemical conditions. The specific capacity of the nickel hydroxide active materials is for example ≧325 mAh/g. The cathode active materials exhibit an additional discharge plateau near 0.8 V vs. a metal hydride (MH) anode. Ni in an oxidation state of less than 2, such as Ni1+, is able to participate in electrochemical reactions when using the present cathode active materials. It is possible that up to 2.3 electrons, up to 2.5 electrons or more may be transferred per Ni atom under electrochemical conditions.

    Abstract translation: 用于碱性可再充电电池的某些氢氧化镍活性阴极材料能够在可逆电化学条件下每个Ni原子转移> 1.3个电子。 氢氧化镍活性物质的比容量例如为≥325mAh/ g。 阴极活性材料在金属氢化物(MH)阳极附近的0.8V附近表现出额外的放电平台。 氧化态小于2的Ni,如Ni1 +,当使用本发明的阴极活性材料时,能够参与电化学反应。 在电化学条件下,每个Ni原子可以转移高达2.3个电子,多达2.5个电子或更多的电子。

Patent Agency Ranking