Nissan Motor Company Limited

Kaneka Corporation

Tomohisa Matsuno

Yoshio Shimoida

Gentaro Kano

Takashi Kikuchi

Kazuki Miyatake

Hirofumi Yasuda

Masahiro Kojima

Norihisa Waki

Yosuke Suzuki

Satoshi Oku

Naoko Nishimura

Takashi Ito

Yasuyuki Tanaka

Shiho Inoue

Keisuke Wakabayashi

Kazuyuki Sakamoto

Akiko Waki

Yuji Muroya

Seiji Ishimoto

Shinnichi Tasaki

A current collector for a battery includes: a layer () formed from an electrically conductive material and at least one of (a) a polymer compound having an alicyclic structure, (b) a saturated hydrocarbon polymer compound having a hydroxyl group, (c) a phenoxy resin and an epoxy resin, and (d) an amine having an amine equivalent of 120 g/eq or less and an epoxy resin; a layer () which is formed on at least one surface of the layer (); and a layer () formed from an electrically conductive material. The current collector for a battery has stability to an equilibrium potential environment in a negative electrode, a low electric resistance, a blocking property to solvent in electrolytic solution, and a blocking property to a component in an electrolyte. In addition, the current collector for a battery has a high capacity retention rate, and battery durability is improved.

Current collector for battery and battery using same

A non-aqueous electrolyte secondary battery is capable of suppressing a local reaction of a negative electrode active material due to the electrolyte during charging and discharging and improving a capacity retention ratio of a using a carbon material such as artificial graphite particles for the negative electrode active material. The non-aqueous electrolyte secondary battery includes a negative electrode containing a carbon-based negative electrode active material, an electrolyte layer, and a positive electrode containing a positive electrode active material, and having a tap density of the negative electrode active material of 0.96 g/cc or more.

Non-aqueous electrolyte secondary battery

Growing community of inventors

Yokohama, Japan

Tomohisa Matsuno