宁德时代Naxtra钠离子电池定于2026年第四季度量产
宁德时代表示,制造瓶颈已经解决,Naxtra钠离子电池将于2026年第四季度开始量产。首款搭载该电池的量产乘用车是长安Nevo A06,预计2026年年中上市。

宁德时代在北京“超级科技日”上发布了Naxtra钠离子电池。同场一共展出六项电池技术,其中包括充换电一体化网络。公司称,钠离子电池产线已达到GWh级产业化水平。
在2026年装备强国论坛上,首席科学家吴凯说,量产从2026年第四季度启动。这与此前定下的2026年底目标一致。
为了走到量产,宁德时代要清掉一批把钠离子电池困在中试工厂里的问题。公司列出四项已解决的技术难点:极端水分控制、硬碳产气、铝箔附着力、自生成负极体系。公司称,一共攻克了100多项工程障碍。吴凯讲了多化学体系战略:磷酸铁锂(LFP)正接近理论能量密度上限,三元(NCM)在能量密度上领先,钠离子则适合极寒环境和储能。
首款车型与续航
首款采用该化学体系的量产乘用车是长安Nevo A06,预计2026年年中上市。它搭载45 kWh的Naxtra电池包,CLTC工况续航400 km。
同一车型换用LFP电池,续航为510 km和630 km。差距就是代价:Naxtra的能量密度最高175 Wh/kg,低于许多锂离子方案。
低温表现
钠电池包的长处是寒冷天气。宁德时代称,在-40 °C下仍能保持90%以上的容量;在-30 °C下,放电功率接近同等LFP电池的三倍。长安表示,在-50 °C下放电依然稳定。
长安在内蒙古牙克石测试了这款电池包。公司称,电池包在带电状态下经受多向挤压、针刺穿透和锯切,均未起火。旗下阿维塔、深蓝、Nevo和UNI品牌将逐步采用Naxtra。
新疆冬天气温经常降到-25 °C以下。Notebookcheck报道,当地LFP电池的充电时间可能翻倍,可用容量最多下降40%。
成本与续航
成本方面,宁德时代认为钠离子电池最终可能比同等LFP电池便宜约30%。钠电池的两极都能用铝箔代替铜箔,公司称这使集流体成本降低70%。
宁德时代给出的500 km是目标值。公司称,Naxtra的Cell-to-Pack布局和电池管理系统目前已支持400 km以上。随着钠离子供应链成熟,纯电版本有望达到500 km至600 km。
2025年9月,公司称其下一代钠离子电池支持500 km以上,并已具备按2026年时间表量产的条件。其钠离子产品是首批通过中国GB 38031-2025动力电池标准认证的钠离子电池。该标准于2026年年中生效,涵盖热稳定性、抗机械冲击和快充循环。
寿命与供应
Naxtra电芯已通过15000次循环基准测试,宁德时代将其折算为20年使用寿命。Notebookcheck报道,在高频循环下这一表现超过LFP。
“One Shell, Two Cells”外壳设计让同一电池包尺寸既能装锂离子电芯,也能装钠离子电芯。车队因此可以在不改动热管理系统和底盘的情况下更换化学体系。
为宁德时代生产正极材料的容百科技,正把钠电正极产能从每年6000吨扩大到2026年底计划的28000吨。
资料来源
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