US Patent Issued to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT on May 13 for "Lithium ion secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,784, issued on May 13, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).

"Lithium ion secondary battery" was invented by Honami Sako (Osaka, Japan) and Masahisa Fujimoto (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte disposed between the positive electrode and the negative electrode. The electrolyte includes a polymeric electrolyte. The polymeric electrolyte is composed of a polymer and a lithium salt of a fluorosulfonyl-group-containing compound, and the polymer is a polymer of a vinylene carbonate ...