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. 11, 2025
Filed:
Oct. 06, 2021
Ngk Insulators, Ltd., Nagoya, JP;
Yukinobu Yura, Nagoya, JP;
Shigeki Okada, Nagoya, JP;
NGK INSULATORS, LTD., Nagoya, JP;
Abstract
Provided is a lithium complex oxide sintered plate for use in a positive electrode of a lithium secondary battery. The lithium complex oxide sintered plate has a structure in which a plurality of primary grains having a layered rock-salt structure are bonded, and has a porosity of 3 to 40%, a mean pore diameter of 15 μm or less, an open porosity of 70% or more, and a thickness of 15 to 200 μm. The plurality of primary grains has a primary grain diameter, i.e., a mean diameter of the primary grains, of 20 μm or less and a mean tilt angle of more than 0° to 30° or less. The mean tilt angle is a mean value of the angles defined by the (003) planes of the primary grains and the plate face of the lithium complex oxide sintered plate.