国标公示：取消“半固态电池”分类

Core Viewpoint - The article discusses the establishment of a national standard for solid-state batteries in China, which aims to clarify the definitions and classifications of solid-state and semi-solid batteries, thereby providing a unified framework for the industry [3][4][9]. Group 1: National Standard Development - On December 31, 2025, China's first national standard for solid-state batteries for electric vehicles entered the public consultation phase, marking a significant step in the standardization of this technology [3]. - The standard will provide a unified definition, classification methods, and quantitative indicators to determine whether a battery qualifies as a solid-state battery [4][8]. - The drafting committee includes over 30 organizations from the entire supply chain, including major battery manufacturers and automotive companies, indicating a broad consensus among key industry players [5][6]. Group 2: Classification and Testing Criteria - The standard introduces a three-part classification system for batteries: liquid, mixed solid-liquid, and solid-state, eliminating the independent categories of "semi-solid" and "fully solid" batteries [10][12]. - A weight loss rate test with a threshold of 0.5% is established to determine if a battery can be classified as solid-state, with specific testing procedures outlined [14][15]. - The classification will also consider the type of solid electrolyte, ion conduction type, and application scenarios, allowing for differentiated product development in various fields [13][17]. Group 3: Industry Implications - The introduction of this standard is expected to accelerate the industrialization of solid-state batteries, with major automotive companies planning to validate and produce these batteries by 2026 and 2027 [19]. - The solid-state battery concept index has seen a nearly 60% increase this year, reflecting strong market interest and investment in this technology [20]. - The standard aims to provide a common language for academic research and technology development, set baseline expectations for product marketing, and establish conditions for future performance and safety standards [22][24].