Mitsubishi Materials had 14 patents in batteries during Q1 2024. Mitsubishi Materials Corp has developed a method for lithium recovery from battery slag involving acid leaching and filtration steps. They have also patented a resin molded body with specific thermal conductivity, thickness, and hardness properties for use in lithium-ion secondary battery cells with safety valves or exhaust holes. GlobalData’s report on Mitsubishi Materials gives a 360-degree 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 35% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Li recovery method and recovery apparatus (Patent ID: US20240097226A1)

The patent filed by Mitsubishi Materials Corp. describes a method for lithium (Li) recovery from battery slag. The method involves several steps including acid leaching, addition of calcium (Ca) content, filtration, addition of sodium carbonate, heating, carbonation, and filtration to separate processed products and residues. The process aims to efficiently recover Li content from the battery slag.

Additionally, the patent includes claims for a Li recovery method and a Li recovery device. The method involves specific steps such as washing the processing residue with a solution containing Ca content and filtration of the mixture. The device comprises various components like an acid leaching device, filtration devices, heating device, and carbonator to carry out the steps outlined in the method. Overall, the patent focuses on a comprehensive process and device for recovering Li from battery slag, highlighting the importance of efficient resource recovery in the battery recycling industry.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.