US Patent Issued to TDK on May 5 for "Layered body, negative electrode current collector for lithium ion secondary battery, and negative electrode for lithium ion secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,620,599, issued on May 5, was assigned to TDK Corp. (Tokyo).

"Layered body, negative electrode current collector for lithium ion secondary battery, and negative electrode for lithium ion secondary battery" was invented by Yuhei Horikawa (Tokyo), Makoto Endo (Tokyo), Takuya Kakiuchi (Tokyo), Miyuki Yanagida (Tokyo), Yuki Naito (Tokyo) and Takahiro Tashiro (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A laminated body contains a first metal layer containing copper; and a second metal layer containing nickel and laminated directly on the first metal layer. A first surface of the second metal layer is a surface in contact with the first metal layer. A...