近日，国家工信部在回复全国政协委员《关于在我国大力发展钠离子电池的提案》时表示，高性价比的钠离子电池有望成为锂离子电池的重要补充，尤其是在固定式储能领域将具有良好发展前景。
有关部门支持促进性能优异、符合条件的钠离子电池在新能源电站、交通工具、通信基站等领域加快应用，推动钠离子电池全面商业化。
钠创新能源是我国钠离子电池技术创新创业的先锋。开发出全球首套千吨级层状结构氧化物正极材料湿法合成工艺路线，并设计制造出相应的功能电解液，为钠离子电池产业生态链的建设起到引领作用。
Natrium Energy provides its customers with solutions in three aspects. The cathode materials and electrolytes have been verified by many well-known domestic battery manufacturers, and the batteries reach an energy density of 130-160Wh/kg and a cycle life of over 5000 cycles.
Natrium Energy has made some major progresses in polyanion-type cathode materials. The Natrium team has successfully developed a carbon coated Na3V2(PO4)3/C (NVP) with 2D nano-structure (CN201810889365.2) for special applications.
实验证明，该材料可实现100-300C（12-36秒）的超快速充放电，在200C倍率下经20000次循环，其放电容量保持率为83.3%，为高功率储能器件设计奠定了良好基础（Nano Energy, 56(2019)502-511）。
近日，钠创团队与上海交通大学和中国石化石油化工研究院紧密合作，开发出易实现工业放大的NVP材料合成新技术，在NVP材料表面均匀包覆3-7nm厚度的导电碳层以增加其导电性。基于所开发的NVP/C材料制成对称型NVP软包电池，结果表明，该对称型NVP软包电池循环性能优，在1C下循环1000次容量保持率达88%，利用加速量热（ARC）测量表明，热失控温度高达254.4C，其热稳定性优于NVP/硬碳电池。
Collaborating closely with Shanghai Jiao Tong University and Sinopec Research Institute of Petroleum Processing, Natrium Team has lately developed a new synthetic technique for the NVP materials feasible for industrial scale-up. The NVP nanocrystal is coated by a carbon layer (ca. 3–7 nm) to enhance its electrical conductivity. The soft-packed symmetrical sodium-ion batteries based on the above NVP/C material shows a long cycling stability (88% capacity retention over 1,000 cycles at 1C). It is extremely interesting that the symmetrical battery (thermal runaway temperature is 254.4°C) has shown much higher thermal stability than the hard carbon battery as demonstrated by accelerating rate calorimetry (ARC).
有关机理及安全性研究结果近期发表在《中国化学工程学报》[1]。相关技术已获中国发明专利（ZL201610241987.5）和美国发明专利（US 2021/0167387 A1）。
On this basis, Natrium Team further developed a new cathode material (Na4VMn(PO4)3/C-rGO) with V partially replaced by Mn and with rGO as additive. This elaborately designed NVMP/C-rGO composite exhibits an ultrahigh rate capability and long cycle life as cathode in sodium-ion batteries, delivering a reversible capacity of 102 mAh /g at 50 C (1.2 mins) with capacity retention of 90.6% (1 C) and 80.4% (50 C) over 500 cycles. Besides, the in-situ XRD is conducted to analyze the phase transformation of NVMP/C-rGO electrode during the charge and discharge process, laying an excellent foundation for their practical application. Relevant results have been published in the internationally renowned journal Nano Energy [2].
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