International Standard for Silicon-Based Anode Materials for Lithium-Ion Batteries Released
2025-07-18
BEIJING, July 17 (Reporter Fu Lili) — On the 17th, reporters learned from the State Administration for Market Regulation that the international standard “Nano Manufacturing—Product Specifications—Part 5-3: Nano Energy Storage—Blank Detailed Specification: Lithium-Ion Battery Nano Silicon-Based Anode Materials,” led by China, has recently been officially released. This is also the first international standard in the field of silicon-based anode materials for lithium-ion batteries.
According to the introduction, this international standard is the first to establish a comprehensive system of key control characteristics for nano-silicon-based anode materials in lithium-ion batteries, and it clearly defines corresponding measurement methods. The system covers core performance indicators such as specific capacity, initial Coulombic efficiency, and volume expansion rate, thereby filling an international standards gap in this field.
The rapid development of the global new-energy vehicle industry is placing ever-higher demands on battery energy density. Silicon-based anode materials, with their remarkable advantage of a theoretical specific capacity more than ten times that of conventional graphite materials, have become the core solution for next-generation high-performance lithium-ion batteries.
Industry data show that in 2024, global production of negative electrode materials for lithium-ion batteries reached 2.16 million tons. As the world’s largest producer of these materials, China holds a global market share of 98.5%. Among them, new-type negative electrode materials—represented by silicon-based negative electrode materials—account for over 60% of the global market share, and as new battery technologies are scaled up, demand for silicon-based negative electrode materials will continue to rise. According to forecasts, the global market size for silicon-based negative electrode materials will reach 30 billion yuan by 2025. The release and implementation of this international standard will provide guidance for the production of nano-silicon-based negative electrode materials, promote collaborative innovation across the upstream and downstream segments of the industrial chain, and accelerate the efficient integration and synergistic development of various links in the global new-energy industry—including material R&D, battery manufacturing, and end-use applications.
Source: Science and Technology Daily
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