Nippon Mektron Limited

Kazuyuki Azuma

Takahisa Kato

Tomoki Kanayama

Shunsuke Tomita

Satoshi Ebihara

Takeo Wakabayashi

Nobuto Sasaki

Tomohiro Shimokawaji

A flexible printed circuit board which includes: a base film; and multiple wires formed on the base film, in which in a region attached to a battery including multiple arrayed cells, a conductor portion to be the multiple wires is provided only on one surface of the base film, at at least part of a region apart from the region attached to the battery, a conductor portion to be the multiple wires is provided on each surface of the base film, and the flexible printed circuit board further includes multiple conductive portions configured to electrically connect the wires on one surface side of the base film and the wires on the other surface side of the base film.

Flexible printed circuit board and battery module

Provided are both a flexible printed board, in which heat dissipation performance can be improved in without using an aluminum heal dissipating material, which is light in weight, has good processability and can be reduced in cost, and a method for manufacturing such a flexible printed board. The flexible printed board is a flexible printed boardon which a power consuming load is mounted, including: a front surface heat dissipation layermade of a copper foil and having a circuit portion on which the load is mounted; a thermally conductive resin layerhaving the front surface heat dissipation layerlaminated to a front surface side thereof and having a thermal conductivity of 0.49 W/mK or more; and a rear surface heat dissipation layer made of a copper foil, laminated to a rear surface side of the thermally conductive resin layer, and having a thickness of 100 to 400% with respect to the front surface heat dissipation layer

Flexible printed board and method for manufacturing flexible printed board

Growing community of inventors

Tokyo, Japan

Kazuyuki Azuma