The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2026
Filed:
Aug. 26, 2022
Kabushiki Kaisha Toshiba, Tokyo, JP;
Yuta Kanai, Yokohama, JP;
Tetsuya Sasakawa, Yokohama, JP;
Kazuomi Yoshima, Yokohama, JP;
Tomoko Sugizaki, Kawasaki, JP;
Yasunobu Yamashita, Tokyo, JP;
Kazuki Ise, Kawasaki, JP;
Taro Fukaya, Tokyo, JP;
Norio Takami, Yokohama, JP;
Yasuhiro Harada, Isehara, JP;
Keigo Hoshina, Yokohama, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
According to one embodiment, a secondary battery including a negative electrode. The negative electrode includes a negative electrode current collector and a negative electrode mixture layer. A thickness of the negative electrode current collector is in a range of 8 μm to 18 μm. The negative electrode current collector includes a first current collector end surface extending along a stacking direction. The negative electrode mixture layer includes a niobium-titanium composite oxide, and a first protrusion protruding from the first current collector end surface along a first direction orthogonal to the stacking direction. A protrusion length A1 of the first protrusion satisfies 0 mm<A1≤1.0 mm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile