ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,592, issued on April 7, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Electrode for secondary battery and secondary battery" was invented by Haruka Shionoya (Toyota, Japan) and Katsushi Enokihara (Toyota, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electrode for a secondary battery includes a substrate and an active material layer. The active material layer is placed on a surface of the substrate. In a surface of the active material layer, one or more grooves are formed. The groove extends linearly in a direction perpendicular to a thickness direction of the active material layer. The groove has an open portion on a periphery of ...