Kabushiki Kaisha Toyota Jidoshokki

Yuki Sugimoto

Atsushi Minagata

Motoyoshi Okumura

Takayuki Hirose

Nobuyasu Haga

Takuro Kikuchi

Kojiro Tamaru

Tomohiro Nakamura

Hirokuni Akiyama

Hidenori Takahashi

Yoshihiro Nakagaki

Tomoyuki Kawai

Hiroyuki Sasaki

Yuuhi Sato

Kensuke Yotsumoto

Ryota Okamoto

An electrolytic solution contains: an electrolyte including a lithium salt represented by general formula (1) below; an organic solvent including a linear carbonate represented by general formula (2) below; and an unsaturated cyclic carbonate, wherein

Electrolytic solution and lithium ion secondary battery

A nickel-hydrogen battery includes a plurality of electrodes each including a current collector made of a metal, and disposed in a manner stacked in a first direction; a separator disposed between adjacent electrodes of the plurality of electrodes; a plurality of resin members disposed on peripheral portions of the plurality of electrodes to ensure a clearance between the adjacent electrodes; and a surface treatment layer covering one surface of the current collector at least in the peripheral portion of the plurality of electrode. The surface treatment layer includes a plurality of protrusions from the one surface. Widest parts of the protrusions are located above base ends thereof, and parts of the resin members are interposed between adjacent protrusions, across a range from tip ends to the base ends thereof.

Power storage device

A bipolar electrode includes a metal foil, a first active material layer provided on a front surface of the metal foil, and a second active material layer having a larger area than the first active material layer and provided on a rear surface of the metal foil. The second active material layer includes a low density region disposed in a peripheral portion in plan view as viewed from a thickness direction of the metal foil, and a high density region disposed more inside than the low density region and having a smaller porosity than the low density region.

Bipolar electrode for nickel-hydrogen storage battery and nickel-hydrogen storage battery

Growing community of inventors

Kariya, Japan

Yuki Sugimoto