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。