Philip Morris Inc.

Sanyo Electric Co., Ltd.

Philip Morris USA Inc.

Takahide Takeda

Charles T Higgins

Shozo Minagawa

Seiichi Kawakami

Takashi Nakai

Masato Sano

Toshio Ishikawa

Tomonori Sakamoto

Kazuo Takada

Robert L Ripley

Shunichi Kuriyama

Shigehito Uemura

William J Crowe

Naotake Yoshida

Arun Sinha

Jan Jones

Brendan Anderson

Wendy Marin

Robert Pandorf

Marc R Chemla

Chuck Krausie

James Collins

Phil Hill

A coolant passage, which is included in a cooling plate thermally coupled to a plurality of battery cells and includes longitudinal coolant passages connected to an inlet side and an outlet side for a coolant and lateral coolant passages connecting the longitudinal coolant passages in parallel with each other, cools the battery cells by allowing the coolant to flow in both the longitudinal coolant passages and the lateral coolant passages via the cooling plate.

Power source device and electric vehicle equipped with power source device

A power supply device includes secondary battery cells disposed adjacent to each other and a separator that is interposed between the secondary battery cells adjacent to each other. The separator is made of a flexible material that has both a heat insulating property and restoring force such that the separator deforms when being pressed by each of the secondary battery cells and recovers an original shape of the separator. This configuration provides an improved heat insulating property between the secondary battery cells and prevents thermal propagation caused by thermal runaway. At the same time, this allows the separator to adapt to deformation of a secondary battery cell that has thermally swelled. In response to contraction of the swelled battery, the separator recovers its original shape to maintain a mechanical pressing force. This allows the power supply device to provide increased mechanical stability and maintain resistance to vibration and impact.

Power supply device, vehicle equipped with same, power storage device and separator for power supply device

Growing community of inventors

Hyogo, Japan

Takahide Takeda