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:
Apr. 28, 2026
Filed:
Jan. 05, 2024
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Tianzhu Fan, Houston, TX (US);
Feng Zhou, Ann Arbor, MI (US);
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Abstract
Embodiments are directed to an electronic-cell assembly. The electronic-cell assembly includes an heat spreader and a power electronics device. The heat spreader includes a metal layer and a single-layer graphite layer. The metal layer encases the single-layer graphite layer and defines a power device recess in an outer surface of the metal layer. The single-layer graphite layer includes three or more adjacent graphite pieces having high thermal conductivity along a thickness direction. The power electronics device is disposed within the power device recess of the outer surface of the heat spreader. At least one of the graphite pieces has low thermal conductivity along a first axis and the high thermal conductivity along a second axis. The first axis and the second axis are perpendicular to the thickness direction. At least one of the graphite pieces has the high thermal conductivity along the first axis and the low thermal conductivity along the second axis.