The international standard “Nanomanufacturing – Product specification – Part 5-3: Nanoenabled energy storage – Blank detail specification: silicon nanosized materials for the negative electrode of lithium-ion batteries(IEC TS 62565-5-3:2025)“, led by China, has been officially published. This marks the release of the world’s first international standard specifically for nano silicon-based anode materials used in lithium-ion batteries.
Filling the Global Standardization Gap
This new standard establishes a comprehensive framework of key control characteristics and clearly defines measurement methods. It covers critical performance indicators such as specific capacity, initial coulombic efficiency, and volume expansion ratio – addressing the long-standing absence of standardized criteria in the field.
Why Silicon Anode Matters
With the rapid growth of the global electric vehicle (EV) industry, the demand for higher battery energy density is increasing. Silicon-based anode materials offer a theoretical specific capacity that is more than ten times that of traditional graphite, making them a key solution for next-generation high-performance lithium-ion batteries.
Global Market Outlook
In 2024, the global output of lithium-ion battery anode materials reached 2.16 million tons, with China accounting for 98.5% of total production. Among them, new-generation anode materials such as silicon-based products have already captured over 60% of the global market share. As battery technologies evolve and scale, demand for silicon anodes is expected to rise steadily. Market analysts predict the global silicon anode market will reach RMB 30 billion (approx. USD 4.1 billion) by 2025.
Driving Innovation Across the Supply Chain
The implementation of this international standard will guide the industrial production of nano silicon anode materials and promote collaborative innovation throughout the battery value chain—from raw material suppliers and R&D centers to cell manufacturers and end-users. It is a major step forward in aligning global energy storage technologies through high-efficiency, standardized development.
Conclusion
As the lithium-ion battery industry continues its transformation to meet the needs of electric mobility and grid storage, the establishment of robust standards will become increasingly important. The release of this nano silicon anode standard lays a foundation for quality control, international collaboration, and faster commercialization of high-energy battery technologies.
Article Keywords: nano silicon anode, lithium-ion battery, silicon anode standard, ISO standard, battery energy density, EV battery material, anode material specification
