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零下40℃仍有90%电量!宁德时代“钠电池”来了!钻透、锯断不起火不爆炸
Mei Ri Jing Ji Xin Wen· 2025-04-21 12:09
Core Viewpoint - CATL has launched three new products during its "Super Technology Day," including the Xiaoyao dual-core battery, sodium-ion battery, and second-generation Shenxing ultra-fast charging battery, aiming to usher in a "multi-core era" for power batteries [1][2]. Group 1: Sodium-ion Battery - The sodium-ion battery, named "Sodium New" by CATL, is set to be mass-produced by December 2025, with its first application in the "Chocolate" battery swap model [1][2]. - Sodium resources are significantly more abundant than lithium, with sodium being approximately 421 times more prevalent in the earth's crust [2]. - The sodium-ion battery can operate in extreme temperatures, maintaining 90% usable capacity at -40°C, and has an energy density of 175Wh/kg, comparable to lithium iron phosphate batteries [2]. Group 2: Xiaoyao Dual-core Battery - The Xiaoyao dual-core battery integrates dual-core architecture and self-generating negative electrode technology, featuring three cross-chemical dual-core solutions: sodium-iron, iron-iron, and ternary iron/dual ternary dual-core batteries [3][4]. - This battery is designed to meet the evolving demands of intelligent driving, with a focus on safety and reliability [3][4]. - The dual-core design includes a unique "thermal runaway safety protection dual-core" mechanism, which isolates and manages thermal events to ensure the safety of the remaining battery cells [4].