Title:
SECONDARY BATTERY SYSTEM AND IN-WHEEL ELECTRIC SYSTEM USING THE SAME
Document Type and Number:
Japanese Patent JP2020187993
Kind Code:
A
Abstract:
To solve a problem in which, in a high frequency band, it is difficult to output electric power because the impedance becomes high due to the influence of the inductance inside a battery and the wiring inductance that accompanies the serialization of the battery.SOLUTION: In a secondary battery system in which a plurality of battery cells 300 are connected in series, the plurality of battery cells include a tab group protruding from a battery housing of each of the battery cells with the surfaces of a positive electrode tab and a negative electrode tab facing each other, and the tab group includes connection surfaces 304 and 305 connecting tabs between adjacent battery cells, and has a configuration in which connection surfaces of the positive electrode tab and the negative electrode tab are arranged in series. The system includes a bus bar 511 facing the connection surface, extending along the arrangement direction of the connection surface, and connected to the tab group such that the current flow direction is opposite to the current flowing through the connection surface.SELECTED DRAWING: Figure 6(a)
Inventors:
KOMATSU DAIKI
INOUE TAKESHI
MAKINO SHIGEKI
TOKUYAMA TAKESHI
ARAKI TAKAHIRO
INOUE TAKESHI
MAKINO SHIGEKI
TOKUYAMA TAKESHI
ARAKI TAKAHIRO
Application Number:
JP2019156268A
Publication Date:
November 19, 2020
Filing Date:
August 29, 2019
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B60K1/04; B60K7/00; H01M10/04; H01M10/44; H01M50/224; H01M50/50; H01M50/588; H01M50/593; H01M50/209; H01M50/249; H01M50/284; H01M50/55; H01M50/553; H01M50/564
Domestic Patent References:
| JP2018176798A | 2018-11-15 | |||
| JPH09274904A | 1997-10-21 |
Attorney, Agent or Firm:
Yuji Toda