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    LITHIUM SULFUR BATTERY CATHODE ELECTRODE SURFACE TREATMENT DURING DISCHARGE
    11.
    发明申请
    LITHIUM SULFUR BATTERY CATHODE ELECTRODE SURFACE TREATMENT DURING DISCHARGE 有权
    锂离子电池阴极电极表面处理放电期间

    公开(公告)号：US20150221991A1

    公开(公告)日：2015-08-06

    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

    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，同时锂脉冲电池在脉冲施加期间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。

    Electrode with modified current collector structure and method of making the same
    14.
    发明授权
    Electrode with modified current collector structure and method of making the same 有权

    公开(公告)号：US10103386B2

    公开(公告)日：2018-10-16

    申请号：US14969508

    申请日：2015-12-15

    Applicant: NISSAN NORTH AMERICA, INC.

    Inventor： Xiaoguang Hao

    IPC: H01M4/70 ,  H01M4/66 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/134

    Abstract: Electrodes having three dimensional current collectors provide stability to the electrode structure, improved contact between active material and the current collector, and improved charge transfer. An electrode includes a three dimensional current collector including a substantially planar base and spring-like structures extending from the substantially planar base in spaced relation along the substantially planar base. Each spring-like structure has an attachment end attached to the substantially planar base and a free distal end. Active material is layered on the three dimensional current collector, the active material filled between the spring-like structures. The active material comprises alloying particles having a high specific capacity, wherein the spring-like structures deflect as the alloying particles expand in volume due to lithiation and return to an initial position as the alloying particles contract due to delithiation.

    Lithium sulfur battery cathode electrode surface treatment during discharge
    15.
    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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