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:
Jan. 30, 2018
Filed:
Oct. 14, 2011
Tatsuhiro Nozue, Ibaraki, JP;
Hirohiko Murakami, Ibaraki, JP;
Tatsuhiro Nozue, Ibaraki, JP;
Hirohiko Murakami, Ibaraki, JP;
ULVAC, INC., Kanagawa, JP;
Abstract
Provided are a positive electrode for a lithium-sulfur secondary battery and a method of forming the same, the positive electrode being capable of maintaining battery characteristics such as a specific capacity and a cycling characteristic while achieving a high rate characteristic in particular when being applied to a lithium-sulfur secondary battery. A positive electrode of a lithium-sulfur secondary battery includes a positive electrode current collector and carbon nanotubes grown on a surface of the positive electrode current collector and oriented in a direction orthogonal to the surface. At least the surface of each of the carbon nanotubes is covered with sulfur with a certain interstice left between neighboring ones of the carbon nanotubes.