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    Fuel cell electrodes using high density support material
    6.
    发明授权
    Fuel cell electrodes using high density support material 有权
    燃料电池电极采用高密度支撑材料

    公开(公告)号：US09431662B2

    公开(公告)日：2016-08-30

    申请号：US14180998

    申请日：2014-02-14

    Applicant: Nissan North America, Inc.

    Inventor： Taehee Han

    IPC: H01M4/88

    CPC classification number: H01M4/8803 ,  H01M4/88 ,  H01M4/8828 ,  Y02E60/50

    Abstract: Methods of preparing fuel cells and fuel cell electrodes having catalyst with high density catalyst support are provided. One method of fabricating a fuel cell electrode comprises adjusting the gravimetric ratio of ionomer to catalyst support based on the density of the support material to optimize ionomer performance.

    Abstract translation: 提供了制备具有高密度催化剂载体催化剂的燃料电池和燃料电池电极的方法。 一种制造燃料电池电极的方法包括基于载体材料的密度调整离聚物与催化剂载体的重量比，以优化离聚物性能。

    Rapid Synthesis of Fuel Cell Catalyst Using Controlled Microwave Heating
    8.
    发明申请
    Rapid Synthesis of Fuel Cell Catalyst Using Controlled Microwave Heating 有权
    使用受控微波加热快速合成燃料电池催化剂

    公开(公告)号：US20140011665A1

    公开(公告)日：2014-01-09

    申请号：US14027502

    申请日：2013-09-16

    Applicant: Nissan North America, Inc.

    Inventor： Ellazar V. Niangar ,  Taehee Han

    IPC: B01J37/34

    CPC classification number: B01J37/346 ,  H01M4/921 ,  H01M4/923 ,  H01M4/926 ,  Y02E60/50

    Abstract: Methods for the rapid synthesis of catalyst are provided, as well as catalyst formed from such methods. One method of the rapid synthesis of catalyst comprises forming a homogenous solution comprising a precious metal precursor and a catalyst substrate, reducing the precious metal precursor to precious metal nanoparticles, and depositing the precious metal nanoparticles onto the catalyst substrate to form catalyst particles. The reducing and depositing steps comprise controlling a rate of increase in temperature of the solution with microwave irradiation until the solution is a predetermined temperature and maintaining the solution at the predetermined temperature with microwave irradiation. The method further comprises detecting completion of the reduction and deposition and ceasing microwave irradiation upon detection.

    Abstract translation: 提供快速合成催化剂的方法，以及由这些方法形成的催化剂。 快速合成催化剂的一种方法包括形成包含贵金属前体和催化剂底物的均匀溶液，将贵金属前体还原为贵金属纳米颗粒，以及将贵金属纳米颗粒沉积到催化剂基质上以形成催化剂颗粒。 还原和沉积步骤包括通过微波照射来控制溶液的温度升高，直到溶液为预定温度，并用微波照射将溶液保持在预定温度。 该方法还包括检测到还原和沉积的完成以及在检测时停止微波照射。

    Regenerated Lithium-Ion Cathode Materials Having Modified Surfaces
    9.
    发明申请
    Regenerated Lithium-Ion Cathode Materials Having Modified Surfaces 审中-公开

    公开(公告)号：US20200373610A1

    公开(公告)日：2020-11-26

    申请号：US16987853

    申请日：2020-08-07

    Applicant: Nissan North America, Inc.

    Inventor： Hosop Shin ,  Taehee Han

    IPC: H01M10/0525 ,  H01M4/131 ,  H01M10/42 ,  H01M4/36

    Abstract: A regenerated cathode active material comprises a core material comprising lithium and a transition metal oxide, the core material having a surface, wherein the core material is a recycled cathode active material. At least two different lithium-ion conducting species are on the surface of the core material, and the at least two different lithium-ion conducting species are selected from AlF3, Li3PO4, and a lithium metal oxide. Another regenerated cathode active material for use in a lithium-ion battery comprises a core material comprising a transition metal oxide and lithium, the core material having a surface, and multiple lithium-ion conducting species on the surface, wherein the core material is a recycled cathode active material.

    Regenerated lithium-ion cathode materials having modified surfaces
    10.
    发明授权
    Regenerated lithium-ion cathode materials having modified surfaces 有权

    公开(公告)号：US10777843B2

    公开(公告)日：2020-09-15

    申请号：US16177040

    申请日：2018-10-31

    Applicant: Nissan North America, Inc.

    Inventor： Hosop Shin ,  Taehee Han

    IPC: H01M10/0525 ,  H01M4/131 ,  H01M10/42 ,  H01M4/36 ,  H01M4/02

    Abstract: A regenerated cathode active material comprises a core material comprising lithium and a transition metal oxide, the core material having a surface, wherein the core material is a recycled cathode active material that has been re-lithiated. At least two different lithium-ion conducting species are on the surface of the core material, and the at least two different lithium-ion conducting species are selected from AlF3, Li3PO4, and a lithium metal oxide. Another regenerated cathode active material for use in a lithium-ion battery comprises a core material comprising a transition metal oxide and lithium, the core material having a surface, and multiple lithium-ion conducting species on the surface, wherein the core material is a recycled cathode active material that has been re-lithiated.

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