MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202617066303 A) filed by Kabushiki Kaisha Toyota Jidoshokki on May 26, 2026, for Power Storage Device.
Inventors include Natsui Keisuke; Ichikawa Yuki; Nakagawa Yuta; Nakamura Tomohiro; and Hirose Takayuki.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: This power storage device (10) comprises a power storage cell (20) that is comprised of a positive electrode (21), a negative electrode (22), a separator (23), and a sealing part (24) that forms a sealed space for housing a liquid electrolyte between the positive electrode (21) and the negative electrode (22). The positive electrode (21) has a positive electrode active material layer (21b) that is formed on a first surface (21a1) of a positive electrode current collector (21a). The first surface (21a1) of the positive electrode current collector (21a) is formed of aluminum. The sealing part (24) is formed of an acid-modified polyolefin resin, and is bonded to the first surface (21a1) of the positive electrode current collector (21a). The positive electrode (21) comprises a carbon coating layer (M) that is provided, at a bonded portion with the sealing part (24), on the first surface (21a1) of the positive electrode current collector (21a). The carbon coating layer (M) contains carbon particles and a coating layer binding agent. The basis weight of the carbon coating layer M is 0.2 g/m2 or more.
Disclaimer: Curated by HT Syndication.
