<p>CATL says its sodium-ion pack can keep charging and delivering power far below freezing. The real test is whether those lab numbers survive real winter driving</p>
Sodium-ion batteries are a type of rechargeable battery that uses sodium ions as the charge carriers. They are considered a promising alternative to lithium-ion batteries due to their potential for lower cost, abundance of raw materials, and improved safety characteristics.
Battery performance can significantly decrease in cold weather, affecting the range and efficiency of electric vehicles. Cold temperatures can slow down the chemical reactions within batteries, leading to reduced capacity and power output. Understanding how different battery technologies perform in low temperatures is crucial for improving electric vehicle reliability in winter conditions.