在全球动力电池竞争日益激烈的背景下，宁德时代正加速布局钠离子电池技术，以应对低温环境下的性能短板，并开拓更广阔的市场空间。2023年，宁德时代正式发布其第一代钠离子电池，能量密度达160Wh/kg，具备快充、高安全性和优异的低温性能。尤其在-20℃环境下，其容量保持率仍超过90%，显著优于传统锂离子电池。这一技术突破被业界称为‘寒地反击’——不仅解决了电动车在北方寒冷地区续航骤降的痛点，也为储能、两轮车及低速电动车等场景提供了更具成本优势的替代方案。钠资源储量丰富、价格稳定，可有效降低对锂、钴等稀缺金属的依赖，提升供应链安全性。宁德时代计划将钠电池与锂电池混搭使用，形成‘AB电池系统’，兼顾高能量密度与低温适应性。此举不仅彰显其技术前瞻性，也标志着中国动力电池企业正从材料体系底层创新出发，重塑全球新能源产业格局。
Amid intensifying global competition in the power battery sector, CATL is accelerating its strategic push into sodium-ion battery technology to overcome performance limitations in cold environments and tap into broader markets. In 2023, CATL officially launched its first-generation sodium-ion battery, featuring an energy density of 160 Wh/kg, fast charging capability, high safety, and exceptional low-temperature performance. Notably, it retains over 90% of its capacity at -20°C—significantly outperforming conventional lithium-ion batteries. This breakthrough has been dubbed a ‘cold-climate counteroffensive,’ effectively addressing the severe range loss experienced by electric vehicles in northern regions during winter. It also offers a cost-effective alternative for energy storage, two-wheelers, and low-speed electric vehicles. Sodium is abundant and price-stable, reducing reliance on scarce metals like lithium and cobalt and enhancing supply chain resilience. CATL plans to combine sodium-ion and lithium-ion cells into a hybrid ‘AB battery system,’ balancing high energy density with superior cold-weather performance. This move not only demonstrates CATL’s technological foresight but also signals how Chinese battery makers are reshaping the global new energy landscape through fundamental material innovation.
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