US Patent Issued to DENSO on June 16 for "Secondary battery system" (Japanese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,404, issued on June 16, was assigned to DENSO Corp. (Kariya-city, Japan).

"Secondary battery system" was invented by Yuji Yamagami (Kariya-city, Japan), Masaaki Kitagawa (Kariya-city, Japan), Hisashi Umemoto (Kariya-city, Japan) and Shuhei Yoshida (Kariya-city, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A secondary battery system includes a secondary battery having an electrode body impregnated with an electrolytic solution containing metal ions. The secondary battery system measures an impedance of the secondary battery. The secondary battery system detects high-rate deterioration caused by uneven concentration of the metal ions in the el...