ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,441, issued on May 26, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).
"Lithium secondary battery" was invented by Tetsuyuki Okano (Osaka Fu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lithium secondary battery includes a positive electrode, a negative electrode, and a porous separator disposed between the positive electrode and the negative electrode, a spacer disposed between the separator and at least one of the positive electrode and the negative electrode, and a non-aqueous electrolyte having lithium ion conductivity. In the negative electrode, the lithium metal deposits during charging, and the li...