US Patent Issued to PRIME PLANET ENERGY & SOLUTIONS, TOYOTA JIDOSHA, TOYOTA BATTERY on April 21 for "Method of self-discharge test for secondary battery and manufacturing method for secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,681, issued on April 21, was assigned to PRIME PLANET ENERGY & SOLUTIONS INC. (Tokyo), TOYOTA JIDOSHA K.K. (Aichi-Ken, Japan) and TOYOTA BATTERY Co. LTD. (Shizuoka-Ken, Japan).

"Method of self-discharge test for secondary battery and manufacturing method for secondary battery" was invented by Hiroaki Ikeda (Toyota, Japan) and Toshiki Yoneyama (Toyohashi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of self-discharge test for a battery including an electrode body provided with a positive electrode plate including a positive active material layer and a negative electrode plate including a negative active material layer. The method in...