Overview
- BAIC’s research arm announced a sodium-ion battery sample it characterizes as reaching industry-leading performance.
- Reported figures include cell energy density above 170 Wh/kg, 4C fast charging to about 11 minutes, and stable operation from −40°C to 60°C with over 92% energy retention at −20°C.
- The first pack uses prismatic cells, and BAIC says it has completed the related prismatic mass-production process.
- The team reports about 20 patent applications spanning core materials, cell design, manufacturing processes, testing methods, and system integration.
- BAIC positions its Aurora battery program as a tri-route roadmap covering lithium, solid-state, and sodium technologies, while emphasizing claimed safety under electrical, mechanical, and thermal abuse conditions.