The State Administration for Market Regulation of China has announced that its proposal for an international standard on all-solid-state EV batteries has been approved by the International Electrotechnical Commission (IEC), marking the world’s first such international standard. The newly established national standard, GB/T 48093.1-2026, sets a stringent requirement: all-solid-state batteries must demonstrate a mass loss of no more than 0.5% after undergoing a 6-hour test in a vacuum oven at 120°C. This benchmark is specifically designed to ensure the safety and stability of these advanced batteries, particularly under high-temperature operating conditions, which is crucial for the reliability of next-generation electric vehicles.
Technical Details
The defined mass loss criterion of less than 0.5% serves as a vital indicator of the internal materials’ resistance to volatilization and degradation. This ensures that the battery can maintain stable performance and operate safely over an extended period, even when subjected to harsh environmental conditions. While conventional liquid-electrolyte lithium-ion batteries often face safety concerns related to electrolyte evaporation and decomposition, solid-state batteries aim to mitigate these risks. However, the stability of solid electrolytes and electrode materials becomes paramount, and China’s new standard directly addresses this. It provides concrete technical requirements for ensuring the long-term reliability of all-solid-state batteries, particularly in high-demand EV applications.
Background and Industry Context
All-solid-state batteries are at the forefront of global R&D, promising higher energy densities, faster charging, and superior safety compared to current lithium-ion technology, all of which are essential for extending EV range and enhancing overall performance. China’s initiative to establish this international standard ahead of other nations underscores its ambition to play a leading role in the commercialization and market deployment of solid-state battery technology. Standardization is a critical step in guiding technological development, facilitating product quality assurance, and ultimately accelerating market adoption on a global scale.
Strategic Significance and Outlook
The promulgation of this international standard is expected to have a significant impact on the global supply chain for all-solid-state EV batteries. International manufacturers aiming to enter the Chinese market will be required to comply with this new benchmark. As this standard potentially gains traction and is adopted by other countries and regions, it will contribute to the formation of a unified international understanding of solid-state battery safety and performance. This move by China is poised to stimulate healthy competition in technological innovation and foster the production of higher-quality products, thereby opening a new chapter in the international race for next-generation battery dominance.
Source: https://www.intelligentliving.co/solid-state-battery-standard/
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