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    Regenerated Lithium-Ion Cathode Materials Having Modified Surfaces
    11.
    发明申请
    Regenerated Lithium-Ion Cathode Materials Having Modified Surfaces 审中-公开

    公开(公告)号：US20200136170A1

    公开(公告)日：2020-04-30

    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

    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.

    Rapid synthesis of fuel cell catalyst using controlled microwave heating
    17.
    发明授权
    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：US09504999B2

    公开(公告)日：2016-11-29

    申请号：US14027502

    申请日：2013-09-16

    Applicant: Nissan North America, Inc.

    Inventor： Ellazar V. Niangar ,  Taehee Han

    IPC: B01J23/00 ,  B01J37/34 ,  H01M4/92

    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。

    Lithium sulfur battery cathode electrode surface treatment during discharge
    19.
    发明授权
    Lithium sulfur battery cathode electrode surface treatment during discharge 有权
    锂硫电池阴极电极表面处理放电

    公开(公告)号：US09379417B2

    公开(公告)日：2016-06-28

    申请号：US14171971

    申请日：2014-02-04

    Applicant: Nissan North America, Inc.

    Inventor： Nagappan Ramaswamy ,  Peter Aurora ,  Gregory DiLeo ,  Xiaoguang Hao ,  Taehee Han ,  Rameshwar Yadav ,  Ellazar Niangar ,  Kenzo Oshihara

    IPC: H01M10/44 ,  H01M10/42 ,  H02J7/00 ,  H01M10/052

    CPC classification number: H01M10/44 ,  H01M10/052 ,  H01M10/42 ,  H01M10/4242 ,  H02J7/00 ,  H02J7/0063 ,  H02J2007/0067

    Abstract: Methods and apparatus are provided for discharging a Li—S battery having at least one battery unit comprising a lithium-containing anode and a sulfur-containing cathode with an electrolyte layer there between. One method comprises electrochemically surface treating the sulfur-containing cathode during discharge of the battery. A method of electrochemically surface treating a cathode of a lithium-sulfide battery comprises applying at least one oxidative voltage pulse during a pulse application period while the lithium-sulfur battery discharges and controlling pulse characteristics during the pulse application period, the pulse characteristics configured to affect a morphology of lithium sulfide forming on the sulfur-containing cathode during discharge.

    Abstract translation: 提供了用于将具有至少一个包含含锂阳极和含硫阴极的电池单元的Li-S电池放电在其间具有电解质层的方法和装置。 一种方法包括在电池放电期间电化学表面处理含硫阴极。 电化学表面处理硫化锂电池的阴极的方法包括在脉冲施加期间施加至少一个氧化电压脉冲，同时在脉冲施加期间锂硫电池放电并控制脉冲特性，脉冲特性被配置为影响 在放电期间在含硫阴极上形成硫化锂的形态。

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