公开(公告)号：EP2091101A4

公开(公告)日：2018-01-24

申请号：EP07829786

申请日：2007-10-15

Applicant: NEC CORP

Inventor： UTSUMI KAZUAKI ,  KATAYAMA KEIJI

IPC: H01M10/44 ,  H01M10/42 ,  H02J7/00 ,  H02J7/02

CPC classification number: H02J7/007 ,  H01M10/4207 ,  H02J7/0063 ,  H02J2007/0067

Abstract: There are provided a battery control system and a battery control method which can eliminate a management device controlling voltages of individual cells in a battery pack, resist the influence of noise, prevent an increase in size, and reduce the load on a management device. A cell for a battery pack will be interconnected with another cell to be used as a battery pack, the cell comprises unit cell 5 and control circuit 1, unit cell 5 is one electrochemical cell, and control circuit 1 includes: measurement means 1 a for acquiring cell-state information including at least a voltage of unit cell 5; transmission means 1f for transmitting the cell-state information to the outside; reception means 1f for receiving external information; and means 1d for discharging unit cell 5 based upon the cell-state information on unit cell 5 and the external information, to bring the voltages of interconnected cells closer.

公开(公告)号：EP2006974A4

公开(公告)日：2014-01-08

申请号：EP07738114

申请日：2007-03-09

Applicant: NEC CORP

Inventor： SAITO TAKASHI ,  UTSUMI KAZUAKI

IPC: H02J7/00 ,  B60L3/00 ,  B60L11/18 ,  H01M6/50 ,  H01M10/44 ,  H01M10/50 ,  H02J7/02 ,  H02J7/34

CPC classification number: H02J7/0054 ,  B60L3/0046 ,  B60L11/1811 ,  B60L11/1816 ,  B60L11/185 ,  B60L11/1872 ,  B60L11/1874 ,  B60L2210/10 ,  H01M6/5033 ,  H01M10/44 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/647 ,  H01M10/655 ,  H01M10/6563 ,  H01M10/6571 ,  H01M10/6572 ,  H02J7/0014 ,  H02J7/027 ,  Y02T10/7005 ,  Y02T10/705 ,  Y02T10/7055 ,  Y02T10/7072 ,  Y02T10/7094 ,  Y02T10/7216 ,  Y02T10/92 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14

公开(公告)号：EP2131413A4

公开(公告)日：2010-08-04

申请号：EP08702968

申请日：2008-01-09

Applicant: NEC CORP

Inventor： MIZUTA MASATOMO ,  UTSUMI KAZUAKI ,  OTOHATA MAKIHIRO ,  YAGETA HIROSHI

IPC: H01M2/02 ,  H01M2/10 ,  H01M2/12

CPC classification number: H01M2/1241 ,  H01M2/0275 ,  H01M2/08 ,  H01M2/1061 ,  H01M2/1229 ,  H01M2/345