公开(公告)号：US20170200985A1

公开(公告)日：2017-07-13

申请号：US15315664

申请日：2015-04-22

Applicant: NEC Corporation

Inventor： Hiroaki FUKUNISHI ,  Kenji KOBAYASHI ,  Suguru WATANABE ,  Osamu ISHIBASHI ,  Hiroshi KAJITANI ,  Kazuhisa SUNAGA ,  Hideyuki SUGITA ,  Atsumasa SAWADA ,  Ayami TANABE

IPC: H01M10/44 ,  H02J7/00 ,  H01M10/0525

CPC classification number: H01M10/44 ,  H01M10/0525 ,  H01M10/613 ,  H02J7/0052 ,  H02J7/0063 ,  H02J2007/0067

Abstract: A pulsed discharge device according to an exemplary aspect of the present invention includes a controller configured to determine an interruption time to a discharge time based on a predetermined time ratio between the discharge time and the interruption time when performing a pulsed discharge to repeat alternately a discharge and a pause in discharging of a chemical battery.

公开(公告)号：US20170054184A1

公开(公告)日：2017-02-23

申请号：US15305730

申请日：2015-04-15

Applicant: NEC Corporation

Inventor： Ayami TANABE ,  Kazuhisa SUNAGA ,  Osamu ISHIBASHI ,  Hiroaki FUKUNISHI ,  Kenji KOBAYASHI

IPC: H01M10/44 ,  H02J7/00 ,  H01M10/42 ,  H01M10/48 ,  H01M10/0525 ,  H01M10/46

CPC classification number: H01M10/44 ,  H01M10/0525 ,  H01M10/46 ,  H01M10/48 ,  H02J7/0063 ,  H02J7/0068 ,  H02J7/007 ,  H02J7/0093 ,  H02J2007/0067

Abstract: A lithium ion secondary battery system allowing a high power efficiency and large effective capacity is provided. The system includes an external power source for charging a lithium ion secondary battery, and a controller for switching output modes including a continuous discharge mode, in which electric power is continuously supplied from the lithium ion secondary battery to the load, and a pulsed charge and discharge mode, in which pulsed electric power is supplied from the lithium ion secondary battery to the load, and pulsed electric power is supplied from the external power source to charge the lithium ion secondary battery during a low-level pulsed discharge period(s), which are periods during which electric power is not supplied to the load, wherein the controller switches the output modes to the pulsed charge and discharge mode when the lithium ion secondary battery has a voltage lower than a predetermined upper switching voltage.

Abstract translation: 提供了具有高功率效率和大的有效容量的锂离子二次电池系统。 该系统包括用于对锂离子二次电池进行充电的外部电源，以及用于切换输出模式的控制器，所述输出模式包括连续放电模式，其中从锂离子二次电池向负载连续地供电，以及脉冲充电， 从锂离子二次电池向负载供给脉冲电力的放电模式，从外部电源供给脉冲电力，在低电平脉冲放电期间对锂离子二次电池充电， 其中电力未被提供给负载的周期，其中当锂离子二次电池具有低于预定的上部开关电压的电压时，控制器将输出模式切换到脉冲充电和放电模式。

公开(公告)号：US20170141700A1

公开(公告)日：2017-05-18

申请号：US15319445

申请日：2015-06-15

Applicant: NEC Corporation

Inventor： Osamu ISHIBASHI ,  Kazuhisa SUNAGA ,  Atsumasa SAWADA ,  Hideyuki SUGITA ,  Ayami TANABE

IPC: H02M7/5395

CPC classification number: H02M7/5395 ,  H02M7/48 ,  H02M7/5387 ,  H02M2001/0058 ,  H02M2001/342 ,  H03K17/162 ,  Y02B70/1491

Abstract: A switching output circuit is provided that enables an accurate control of output power. To achieve the objective, a switching output circuit according to an exemplary aspect of the present invention includes eight switching means, two electric storage means, and a control means, wherein the control means controls the switching means and switches a conduction state and a non-conduction state, by which the power supplied from a direct-current power supply is switched and supplied to an inductive load.