Mitsubishi Paper Mills has patented a coating solution for lithium ion battery separators, including inorganic particles and carboxymethyl cellulose, ensuring high safety and low internal resistance. The solution comprises magnesium hydroxide with specific absorption levels. GlobalData’s report on Mitsubishi Paper Mills gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Mitsubishi Paper Mills, Corrosion resistant battery packaging was a key innovation area identified from patents. Mitsubishi Paper Mills's grant share as of February 2024 was 39%. Grant share is based on the ratio of number of grants to total number of patents.
A recently granted patent (Publication Number: US11881595B2) discloses a coating solution designed for lithium ion battery separators. The solution is utilized in the production of a lithium ion battery separator, consisting of a substrate and a coating layer containing inorganic particles. Specifically, the inorganic particles in the coating layer comprise magnesium hydroxide with a linseed oil absorption ranging from 30 to 80 (g/100 g). The use of this unique coating solution aims to enhance the performance and efficiency of lithium ion batteries.
Furthermore, the patent claims also cover the specific composition of the lithium ion battery separator, which includes a substrate and a coating layer formed on at least one side of the substrate. The coating layer is specified to contain magnesium hydroxide with a linseed oil absorption of 30 to 80 (g/100 g). Additionally, the patent emphasizes that the substrate used in this separator is a nonwoven fabric. This innovative design and composition of the lithium ion battery separator aim to improve the overall functionality and longevity of lithium ion batteries, catering to the growing demand for efficient energy storage solutions in various industries.
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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.
