US Patent Issued to SUMITOMO METAL MINING on April 7 for "Metal composite hydroxide and method for producing the same, positive electrode active material for lithium ion secondary battery and method for producing the same, and lithium ion secondary battery using the same" (Japanese Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,189, issued on April 7, was assigned to SUMITOMO METAL MINING Co. LTD. (Tokyo).

"Metal composite hydroxide and method for producing the same, positive electrode active material for lithium ion secondary battery and method for producing the same, and lithium ion secondary battery using the same" was invented by Tetsutaro Hayashi (Niihama, Japan), Shinsuke Suganuma (Niihama, Japan) and Shuuzou Ozawa (Niihama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a metal composite hydroxide, which includes a first crystallization process of supplying a first raw material aqueous and performing a crystallization reaction and a seco...