US Patent Issued to Vehicle Energy Japan on Dec. 23 for "Secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,506,149, issued on Dec. 23, was assigned to Vehicle Energy Japan Inc. (Hitachinaka, Japan).

"Secondary battery" was invented by Hironori Sasaki (Hitachinaka, Japan), Toshiyuki Ariga (Hitachinaka, Japan) and Takeshi Miki (Hitachinaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A conventional secondary battery has a problem that an internal resistance is very high in a low SOC region and necessary output cannot be taken out. In a secondary battery including a positive electrode and a negative electrode, a capacity difference from a terminal potential of a positive electrode discharge curve to a terminal voltage of a battery discharge curve of th...