To provide a battery pack that is intended to improve cooling performance of a battery cell while securing heat dissipation area.
A heat dissipation member 3 is formed by repeating a right triangle shape comprising: a first flat part 31 where a vertical cross-sectional shape relative to a flow direction F faces a side face 2a of one battery cell among both sides of battery cells; a vertical part 30 which forms a right angle part 34 bending to a vertical direction relative to the side face 2a of one battery cell from an end of the first flat part 31 and extends toward the side face 2a of the other battery cell; a second flat part 32 which extends such that it faces the side face 2a of the other battery cell in the opposite direction to the first flat part 31 from an end of the vertical part 30; and an inclined part 33 which extends from an end of the second flat part 32 toward the right angle part 34 and connects an end of a different first flat part 31 adjacent to the first flat part 31 and an end of the second flat part 32. In addition, in the heat dissipation member 3, the repeated right triangle shape extends over width of the flow direction F in both sides of battery cells.
MATSUI HIROHITO
KAWAURA MASANORI
MATSUDA MIKIO
HAKAMATA NAOKI
OKAWA HIDEAKI
KINOSHITA HIROSHI
DENSO CORP
Taihei Nonobe
Takanori Kubo