鑫椤锂电·2026-02-05 07:10Core Viewpoint - The article discusses the advancements and market outlook for sodium-ion batteries, highlighting their performance metrics and safety features, as well as their integration into electric vehicles by Changan Automobile and CATL [2][3][5]. Group 1: Sodium-Ion Battery Performance - CATL's sodium-ion batteries will be installed in Changan passenger vehicles for winter testing, marking a significant step in their commercial application [2]. - Sodium-ion batteries have achieved a pure electric range exceeding 400 kilometers, with potential upgrades to 500-600 kilometers as the industry matures [3][4]. - The energy density of the cells can reach up to 175 watt-hours per kilogram, which is currently the highest in the industry [4]. Group 2: Performance in Extreme Conditions - Sodium-ion batteries demonstrate superior performance in extreme cold, with discharge power nearly three times that of conventional lithium iron phosphate batteries at -30 degrees Celsius [5]. - At -40 degrees Celsius, the energy retention rate can exceed 90%, eliminating the need for battery heating, and stable discharge is achievable even at -50 degrees Celsius [5]. Group 3: Safety Features - Sodium-ion batteries have passed rigorous safety tests, including puncture and crushing tests, without catching fire or exploding, even when fully charged [5].