Mitsubishi Materials had 17 patents in batteries during Q4 2023. Mitsubishi Materials Corp filed a patent for a method of producing a solid electrolyte member with reduced sulfides in raw materials. Another patent filed by the company is for a method of separating cobalt and nickel from lithium ion batteries, involving crushing, leaching, copper separation, and cobalt/nickel separation steps. GlobalData’s report on Mitsubishi Materials gives a 360-degreee view of the company including its patenting strategy. Buy the report here.

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Mitsubishi Materials grant share with batteries as a theme is 5% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Method of producing solid electrolyte member (Patent ID: US20230327187A1)

The patent filed by Mitsubishi Materials Corp. describes a method for producing a solid electrolyte member based on sulfide while reducing the amount and types of sulfides used as raw materials. The method involves preparing an aggregate of starting materials that includes elemental sulfur and a non-sulfide raw material containing elements other than sulfur that constitute the solid electrolyte member. This non-sulfide raw material is heated to form the solid electrolyte member, with the exclusion of elements other than sulfur that constitute the member, except for inevitable impurities. The method aims to streamline the production process and enhance the efficiency of creating solid electrolyte members.

Furthermore, the patent outlines various specific claims related to the production method, including the inclusion of elemental sulfur and non-sulfide raw materials in the preparation step, the heating temperatures during the forming step, and the specific composition of the solid electrolyte member represented by LiaMbPcSd. The method also covers variations in the crystal structure of the solid electrolyte member, such as the argyrodite-type crystal structure represented by LiaPbScHad. By detailing these specific claims, the patent provides a comprehensive guide for producing solid electrolyte members with improved efficiency and reduced reliance on sulfides as raw materials.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.