Daido Steel had seven patents in batteries during Q1 2024. The patent filed by Daido Steel Co Ltd in Q1 2024 describes a Si alloy powder with a Si phase, SiX compound phase, and either a SnY or AlY compound phase. The element X includes Fe, Ni, Cr, Co, Mn, Zr, or Ti, with an average particle diameter of 50 µm or less. The Si phase makes up 30% to 95% of the entire Si alloy. GlobalData’s report on Daido Steel gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Daido Steel grant share with batteries as a theme is 28% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Si alloy powder for negative electrode (Patent ID: US20240038977A1)
The patent filed by Daido Steel Co Ltd describes a Si alloy powder for a negative electrode, which includes a Si phase, a SiX compound phase, and either a SnY compound phase or an AlY compound phase. The element X in the alloy can be Fe, Ni, Cr, Co, Mn, Zr, or Ti, with the Si alloy powder having an average particle diameter of 50 µm or less and the Si phase making up 30% to 95% of the entire alloy. The patent also specifies various elements that can be included in the alloy, such as Ag, Au, B, Ba, Be, C, Ca, Cd, Ce, Cs, Dy, Er, Eu, F, Ga, Gd, H, Hf, Hg, Ho, Ir, La, Mo, N, Nd, O, Os, Pr, Pt, Rh, Re, Ru, Sb, Sc, Se, Sr, Ta, Tc, Te, Th, Tl, Tm, W, and Y.
The claims in the patent further detail the composition and characteristics of the Si alloy powder, including the presence of specific elements in the compound phases, the particle diameter requirements, and the ratios between different phases within the alloy. The patent emphasizes the importance of maintaining specific particle diameter ranges for the Si phase, SiX compound phase, and SnY compound phase, with ratios between them falling within certain limits. Additionally, the patent lists a wide range of elements that can be included as Y in the compound phases, expanding the potential variations in the composition of the Si alloy powder for a negative electrode.
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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.
