ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,276, issued on Jan. 20, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Electrode and secondary battery" was invented by Haruka Shionoya (Toyota, Japan), Yusuke Kintsu (Miyoshi, Japan), Tetsuya Mimura (Chiryu, Japan), Takeshi Kondo (Kariya, Japan) and Yuta Kawamoto (Kariya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electrode includes a base material and an active material layer. The active material layer is disposed on a base material surface. One or more grooves are formed on an active material layer surface. The one or more grooves linearly extend along the surface of the active material layer. In a plan view, each of the one o...