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：US20160248067A1

公开(公告)日：2016-08-25

申请号：US14629787

申请日：2015-02-24

Applicant: Nissan North America, Inc.

Inventor： Xiaoguang Hao ,  Kenzo Oshihara

IPC: H01M2/18 ,  H01M10/052

CPC classification number: H01M2/18 ,  H01M2/1686 ,  H01M4/38 ,  H01M4/382 ,  H01M10/052 ,  H01M10/0585

Abstract: Electrochemical cells for lithium-sulfur batteries include a cathode comprising a sulfur containing material, an anode comprising lithium, a separator between the anode and cathode and an interlayer extending from a perimeter of the separator in a direction perpendicular to a stacking direction. The interlayer is configured to prevent polysulfide migration from the cathode to the anode.

Abstract translation: 用于锂硫电池的电化学电池包括包含含硫材料的阴极，包含锂的阳极，在阳极和阴极之间的隔板以及从垂直于堆叠方向的方向从隔板的周边延伸的中间层。 中间层被配置为防止多硫化物从阴极迁移到阳极。

公开(公告)号：US10177371B2

公开(公告)日：2019-01-08

申请号：US14928424

申请日：2015-10-30

Applicant: Nissan North America, Inc.

Inventor： Xiaoguang Hao ,  Kenzo Oshihara

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/134 ,  H01M10/052

Abstract: Electrodes having at least one current correcting layer between the current collector and the separator drive electron flow in a direction perpendicular to the X-Y plane. Such an electrode includes a current collector, a first active material layer coated on the current collector, a first current correcting layer on the first active material layer opposite the current collector and a second active material layer on the first current correcting layer opposite the first active material layer. The first current correcting layer is a highly conductive, porous material that is not electrochemically active, the first current correcting layer being uniformly formed along an X-Y plane of the electrode.

公开(公告)号：US09837653B2

公开(公告)日：2017-12-05

申请号：US14629787

申请日：2015-02-24

Applicant: Nissan North America, Inc.

Inventor： Xiaoguang Hao ,  Kenzo Oshihara

IPC: H01M2/18 ,  H01M10/052 ,  H01M10/058 ,  H01M4/38 ,  H01M2/16 ,  H01M10/0585

CPC classification number: H01M2/18 ,  H01M2/1686 ,  H01M4/38 ,  H01M4/382 ,  H01M10/052 ,  H01M10/0585

Abstract: Electrochemical cells for lithium-sulfur batteries include a cathode comprising a sulfur containing material, an anode comprising lithium, a separator between the anode and cathode and an interlayer extending from a perimeter of the separator in a direction perpendicular to a stacking direction. The interlayer is configured to prevent polysulfide migration from the cathode to the anode.

公开(公告)号：US10573893B2

公开(公告)日：2020-02-25

申请号：US14977891

申请日：2015-12-22

Applicant: NISSAN NORTH AMERICA, INC.

Inventor： Kenzo Oshihara ,  Xiaoguang Hao

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/134 ,  H01M4/38 ,  H01M4/74 ,  H01M4/36 ,  H01M4/66 ,  H01M4/1395

Abstract: A method of making an electrode for a lithium ion battery includes providing a restricting media having a main body with opposing planar surfaces and depositing alloying particles on the opposing planar surfaces to form a restrained active particle layer. The restricting media can be a magnetic, electrochemically inactive material with an affinity for the alloying particles. The restricting media restrains expansion of the alloying particles during lithiation to a respective side of the restricting media. Electrodes include a current collector and an electrode material layer adjacent the current collector including the restricting media, the alloying particles deposited on the restricting media to form a restrained active particle layer, and a carbon material in contact with the alloying particles.

公开(公告)号：US09985275B2

公开(公告)日：2018-05-29

申请号：US14928253

申请日：2015-10-30

Applicant: Nissan North America, Inc.

Inventor： Kan Huang ,  Nilesh Dale ,  Xiaoguang Hao ,  Jessica Weber ,  Ying Liu

IPC: H01M4/04 ,  H01M4/66 ,  H01M4/70 ,  H01M4/75 ,  H01M4/78 ,  H01M10/052

CPC classification number: H01M4/0428 ,  H01M4/043 ,  H01M4/661 ,  H01M4/663 ,  H01M4/70 ,  H01M4/75 ,  H01M4/78 ,  H01M10/052 ,  H01M2220/20 ,  Y02E60/122

Abstract: A method of making a three dimensional electrode having an active material layered between a current collector and a separator includes growing nanotubes at predetermined points on a first sheet of electron directing material, wherein the electron directing material is highly conductive and chemically inert; aligning the nanotubes in a direction perpendicular to the first sheet; functionalizing a distal end of each nanotube; bonding a second sheet of electron directing material to the functionalized distal end of each nanotube; depositing magnetic particles along the second sheet; applying a magnetic field to the magnetic particles to rotate the first sheet, the second sheet and the nanotubes ninety degrees to form an electron directing structure; and attaching the electron directing structure on a surface of the current collector with a polymer binder. The electron directing structure is configured to direct electron flow along a layered direction of the three dimensional electrode.

公开(公告)号：US09806337B2

公开(公告)日：2017-10-31

申请号：US14597389

申请日：2015-01-15

Applicant: Nissan North America, Inc.

Inventor： Xiaoguang Hao ,  Kenzo Oshihara

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/133 ,  H01M10/052

CPC classification number: H01M4/366 ,  H01M4/133 ,  H01M4/386 ,  H01M4/387 ,  H01M4/587 ,  H01M10/052 ,  H01M2220/20 ,  Y02E60/122

Abstract: An electrode comprises a current collector and a multi-layer active material formed on the current collector. The multi-layer active material includes at least one active composite unit having a first layer consisting essentially of a first carbon material having electrochemical activity and a binder and a second layer formed on the first layer comprising a high energy density material. A top layer is formed on the active composite unit consisting essentially of a second carbon material having electrochemical activity and a binder. The electrode provides even current distribution and compensates for particle volume expansion.

公开(公告)号：US09780362B2

公开(公告)日：2017-10-03

申请号：US14928362

申请日：2015-10-30

Applicant: Nissan North America, Inc.

Inventor： Xiaoguang Hao ,  Jessica Weber ,  Kenzo Oshihara ,  Ying Liu

IPC: H01M4/04 ,  H01M4/36 ,  H01M4/38 ,  H01M4/80 ,  H01M4/133 ,  H01M4/134 ,  H01M4/587 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62

CPC classification number: H01M4/364 ,  H01M4/0404 ,  H01M4/13 ,  H01M4/139 ,  H01M4/386 ,  H01M4/587 ,  H01M4/624 ,  H01M4/808

Abstract: Electrodes made with a matrix selectively loaded with particular active particles provide uniform distribution and reduce issues due to particle expansion. The electrode has a current collector, a separator and a matrix having first pores having a first size and second pores having a second size, the first size being larger than the second size, the second pores being uniformly distributed throughout the matrix; first active particles deposited in the first pores, the first active particles having a first particle size smaller than the first pores and larger than the second pores; and second active particles deposited in the second pores, the second active particles having a second particle size smaller than the second pores.

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。