公开(公告)号：US09627684B2

公开(公告)日：2017-04-18

申请号：US14180571

申请日：2014-02-14

Applicant: Nissan North America, Inc.

Inventor： Nagappan Ramaswamy ,  Peter Aurora ,  Taehee Han

IPC: H01M4/38 ,  C01B33/02 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/386 ,  C01B33/02 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/027

Abstract: An anode active material for a lithium-ion battery cell comprises low density silicon. The anode active material is provided in an anode for a lithium-ion battery. Also disclosed are methods of making the anode active material.

公开(公告)号：US09590252B2

公开(公告)日：2017-03-07

申请号：US14180405

申请日：2014-02-14

Applicant: Nissan North America, Inc.

Inventor： Nagappan Ramaswamy ,  Peter Aurora ,  Taehee Han

IPC: H01M4/136 ,  H01M4/62 ,  H01M4/04 ,  H01M4/38 ,  H01M10/052 ,  H01M4/58 ,  H01M4/02

CPC classification number: H01M4/626 ,  H01M4/0416 ,  H01M4/38 ,  H01M4/5815 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028

Abstract: A cathode for a lithium-sulfur battery cell includes positive active material comprising sulfur and carbon coated onto an electrode substrate and gold nanoparticles affixed to the positive active material and configured to direct growth and deposition of lithium sulfide. A lithium ion battery cell, battery stack and method of making the cathodes are also provided.

Abstract translation: 用于锂 - 硫电池单元的阴极包括涂覆在电极基底上的含有硫和碳的正极活性材料，以及固定在正极活性材料上的金纳米颗粒并且被配置为引导硫化锂的生长和沉积。 还提供锂离子电池单元，电池组和制造阴极的方法。

公开(公告)号：US09866056B2

公开(公告)日：2018-01-09

申请号：US15087257

申请日：2016-03-31

Applicant: NISSAN NORTH AMERICA, INC.

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

IPC: H01M10/42 ,  H01M10/44 ,  H02J7/00 ,  C25F1/00 ,  H01M10/052 ,  H01M10/46

CPC classification number: H02J7/007 ,  C25F1/00 ,  H01M10/052 ,  H01M10/42 ,  H01M10/4242 ,  H01M10/425 ,  H01M10/44 ,  H01M10/446 ,  H01M10/46 ,  H01M2220/20 ,  H02J7/00 ,  H02J7/0052 ,  H02J7/0075 ,  H02J7/0093

Abstract: Provided are methods and apparatus for charging a lithium sulfur (Li—S) battery. The Li—S battery has at least one unit cell comprising a lithium-containing anode and a sulfur-containing cathode with an electrolyte layer there between. One method provides controlled application of voltage pulses at the beginning of the charging process. An application period is initiated after a discharge cycle of the Li—S battery is complete. During the application period, voltage pulses are provided to the Li—S battery. The voltage pulses are less than a constant current charging voltage. Constant current charging is initiated after the application period has elapsed.

公开(公告)号：US20150236344A1

公开(公告)日：2015-08-20

申请号：US14180571

申请日：2014-02-14

Applicant: Nissan North America, Inc.

Inventor： Nagappan Ramaswamy ,  Peter Aurora ,  Taehee Han

IPC: H01M4/38 ,  C01B33/02 ,  H01M4/04

CPC classification number: H01M4/386 ,  C01B33/02 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/027

Abstract: An anode active material for a lithium-ion battery cell comprises low density silicon. The anode active material is provided in an anode for a lithium-ion battery. Also disclosed are methods of making the anode active material.

Abstract translation: 用于锂离子电池单元的负极活性材料包括低密度硅。 阳极活性材料设置在用于锂离子电池的阳极中。 还公开了制备负极活性材料的方法。

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。

公开(公告)号：US20150221990A1

公开(公告)日：2015-08-06

申请号：US14171933

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: H02J7/007 ,  C25F1/00 ,  H01M10/052 ,  H01M10/42 ,  H01M10/4242 ,  H01M10/425 ,  H01M10/44 ,  H01M10/446 ,  H01M10/46 ,  H01M2220/20 ,  H02J7/00 ,  H02J7/0052 ,  H02J7/0075 ,  H02J7/0093

Abstract: Provided are methods and apparatus for charging a lithium sulfur (Li—S) battery. The Li—S battery has at least one unit cell comprising a lithium-containing anode and a sulfur-containing cathode with an electrolyte layer there between. One method provides controlled application of voltage pulses at the beginning of the charging process. An application period is initiated after a discharge cycle of the Li—S battery is complete. During the application period, voltage pulses are provided to the Li—S battery. The voltage pulses are less than a constant current charging voltage. Constant current charging is initiated after the application period has elapsed.

Abstract translation: 提供锂硫（Li-S）电池的充电方法和装置。 Li-S电池具有包含含锂阳极和含硫阴极的至少一个单元电池，其间具有电解质层。 一种方法在充电过程开始时提供电压脉冲的受控应用。 在Li-S电池的放电循环完成后开始施加期间。 在施加期间，向Li-S电池提供电压脉冲。 电压脉冲小于恒定电流充电电压。 在施加期间过后，启动恒定电流充电。

公开(公告)号：US20160218522A1

公开(公告)日：2016-07-28

申请号：US15087257

申请日：2016-03-31

Applicant: NISSAN NORTH AMERICA, INC.

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

IPC: H02J7/00 ,  H01M10/46 ,  H01M10/42 ,  H01M10/052

CPC classification number: H02J7/007 ,  C25F1/00 ,  H01M10/052 ,  H01M10/42 ,  H01M10/4242 ,  H01M10/425 ,  H01M10/44 ,  H01M10/446 ,  H01M10/46 ,  H01M2220/20 ,  H02J7/00 ,  H02J7/0052 ,  H02J7/0075 ,  H02J7/0093

Abstract: Provided are methods and apparatus for charging a lithium sulfur (Li—S) battery. The Li—S battery has at least one unit cell comprising a lithium-containing anode and a sulfur-containing cathode with an electrolyte layer there between. One method provides controlled application of voltage pulses at the beginning of the charging process. An application period is initiated after a discharge cycle of the Li—S battery is complete. During the application period, voltage pulses are provided to the Li—S battery. The voltage pulses are less than a constant current charging voltage. Constant current charging is initiated after the application period has elapsed.

公开(公告)号：US09331364B2

公开(公告)日：2016-05-03

申请号：US14171933

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 ,  C25F1/00 ,  H01M10/052 ,  H02J7/00

CPC classification number: H02J7/007 ,  C25F1/00 ,  H01M10/052 ,  H01M10/42 ,  H01M10/4242 ,  H01M10/425 ,  H01M10/44 ,  H01M10/446 ,  H01M10/46 ,  H01M2220/20 ,  H02J7/00 ,  H02J7/0052 ,  H02J7/0075 ,  H02J7/0093

Abstract: Provided are methods and apparatus for charging a lithium sulfur (Li—S) battery. The Li—S battery has at least one unit cell comprising a lithium-containing anode and a sulfur-containing cathode with an electrolyte layer there between. One method provides controlled application of voltage pulses at the beginning of the charging process. An application period is initiated after a discharge cycle of the Li—S battery is complete. During the application period, voltage pulses are provided to the Li—S battery. The voltage pulses are less than a constant current charging voltage. Constant current charging is initiated after the application period has elapsed.

Abstract translation: 提供锂硫（Li-S）电池的充电方法和装置。 Li-S电池具有包含含锂阳极和含硫阴极的至少一个单元电池，其间具有电解质层。 一种方法在充电过程开始时提供电压脉冲的受控应用。 在Li-S电池的放电循环完成后开始施加期间。 在施加期间，向Li-S电池提供电压脉冲。 电压脉冲小于恒定电流充电电压。 在施加期间过后，启动恒定电流充电。

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。