Fujifilm had 39 patents in batteries during Q1 2024. Fujifilm Holdings Corp filed a patent for a solid electrolyte laminated sheet for use in all-solid state secondary batteries. The sheet includes a porous support with an inorganic solid electrolyte and a solid electrolyte layer, with the porous support having a void ratio of 20% or more. A manufacturing method for the battery using this sheet is also provided. GlobalData’s report on Fujifilm gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Fujifilm grant share with batteries as a theme is 46% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Solid electrolyte laminated sheet, all-solid state secondary battery, and manufacturing method for all-solid state secondary battery (Patent ID: US20240006715A1)
Fujifilm Holdings Corp. has developed a solid electrolyte laminated sheet for use in all-solid state secondary batteries. The sheet includes a porous support containing an inorganic solid electrolyte and a solid electrolyte layer with specific void ratios. The manufacturing method involves adjusting the void ratios of the porous support and solid electrolyte layer during pressurization to create the desired structure. The resulting all-solid state secondary battery has specific layer structures and void ratios to optimize performance.
The solid electrolyte laminated sheet consists of a porous support with an inorganic solid electrolyte and a solid electrolyte layer, both containing ion-conductive metals from Group 1 or Group 2 in the periodic table. The void ratios of the porous support and solid electrolyte layer are crucial, with the porous support having a minimum void ratio of 20% and the solid electrolyte layer having a lower void ratio than the support. The manufacturing method involves pressurizing the sheet to achieve specific void ratios while ensuring the proper distribution of inorganic solid electrolyte particles. The resulting all-solid state secondary battery features a layered structure with optimized void ratios and the inclusion of a negative electrode active material layer for enhanced performance.
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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.
