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:
Mar. 10, 2026
Filed:
Feb. 22, 2022
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Assignee:
APPLE INC., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/434 (2021.01); H01M 50/443 (2021.01); H01M 50/449 (2021.01);
U.S. Cl.
CPC ...
H01M 50/434 (2021.01); H01M 50/443 (2021.01); H01M 50/449 (2021.01);
Abstract
A battery component is described that has at least one ceramic layer that includes ceramic particles and a binder. The ceramic particles may include α-alumina or γ-alumina. The ceramic layer may be characterized by a porosity of greater than or about 40 vol %. In additional embodiments, the one or more ceramic layers may have a weight ratio of ceramic particles to binder is greater than or about 90:10. The battery component may be a battery separator that is characterized by a MacMullin number of less than or about 40 and a thermal shrinkage of less than or about 1 vol. % after 1 hour at 140° C.