再生钠材料可以重新用于电芯制造吗？

Can regenerated sodium materials be reused for cell manufacturing?

经标准化湿法深度提纯的再生钠盐、正负极活性材料完全满足电芯量产制造标准，可 100% 比例或搭配少量原生矿产原料用于全新钠电池生产；干法粗分再生材料仅适配低端储能、低速车电芯，高端长循环产品需湿法精提改性后使用。再生钠盐：湿法结晶提纯的 NaPF6、NaFSI 纯度达电子级 99.95，杂质含量低于工业矿制钠盐，直接调配电解液，适配工商业大容量储能、电网调频高端电芯；干法粗钠盐杂质偏高，仅用于户用平价储能简易电解液。再生正极前驱体：湿法萃取合成的普鲁士蓝、钒基聚阴离子再生料晶格完整，循环 3000 次容量保持率超 80，电化学指标与原生料差距不足 3%，可完全替代矿产前驱体大批量制造储能电芯；干法粗正极需补加少量金属源改性，仅用于两轮车、路灯低倍率电池。再生硬碳：回收活化处理后微孔结构复原，首次库仑效率、储容量达标，不限场景全品类电芯通用。再生铝箔 / 铝壳熔融卷材无氧化杂质，完美适配极片涂布集流体。行业量产验证：采用 50% 再生材料混合配料的电芯，容量、内阻、循环、低温性能与全原生料电芯无显著差异，已实现吉瓦级储能 PACK 批量投产。当前国内电芯头部企业均配套回收产线，再生材料规模化掺混投料，既降低原材料采购成本，又减少矿产开采碳排放，符合双碳循环产业政策。

Regenerated sodium salts and cathode/anode active materials purified via standardized deep wet processes fully meet mass cell production standards and can be used for new sodium batteries at 100% proportion or mixed with a small amount of virgin mineral feedstock. Crude dry recycled materials are only applicable to low-end storage and low-speed vehicle cells, while high-end long-cycle products require wet fine purification and modification. Regenerated sodium salts: Wet crystallized NaPF6 and NaFSI reach electronic-grade purity of 99.95% with lower impurities than mineral sodium salts, directly deployed in electrolytes for large-capacity industrial storage and grid frequency regulation high-end cells. Crude dry sodium salts contain excessive impurities and are limited to simple electrolytes of low-cost household storage. Regenerated cathode precursors: Wet-extracted Prussian blue and vanadium polyanion recycled materials feature intact lattices with over 80% capacity retention after 3,000 cycles, and electrochemical indicators differ from virgin feedstock by less than 3%, fully replaceable for mass storage cell manufacturing. Crude dry cathodes require modification with supplementary metal sources and are only for low-rate e-bike and street lamp batteries. Regenerated hard carbon recovers complete micropores after activation, with qualified initial Coulombic efficiency and storage capacity applicable to all cell scenarios. Remelted recycled aluminum foil & shells contain no oxide impurities and perfectly fit electrode coating current collectors. Industrial mass verification: Cells mixed with 50% recycled materials show no obvious difference in capacity, internal resistance, cycle and low-temperature performance vs full virgin cells, and gigawatt-level storage PACK mass production has been realized. Leading domestic cell enterprises all support matching recycling lines with large-scale blending of regenerated materials, cutting raw material procurement costs and mining carbon emissions in line with dual-carbon circular industrial policies.