材料科学
阴极
插层(化学)
电解质
阳极
石墨
钠离子电池
化学工程
电池(电)
无机化学
分析化学(期刊)
物理化学
复合材料
电极
有机化学
物理
工程类
法拉第效率
量子力学
功率(物理)
化学
作者
Krishnan Subramanyan,Manohar Akshay,Yun‐Sung Lee,Vanchiappan Aravindan
标识
DOI:10.1002/admt.202200399
摘要
Abstract Spent Li‐ion batteries are efficiently recycled by extracting and reusing the anode active material, graphite, through a simple yet effective and scalable technique as anode for the sodium‐ion battery (SIB). The recovered graphite (RG) half‐cell rendered a capacity of >120 mAh g −1 via the solvent‐co‐intercalation process. An in situ impedance is performed to assess the robustness of the electrolyte for the extended cycling. The performance of RG is evaluated in a full‐cell with carbon‐coated Na 3 V 2 (PO 4 ) 3 cathode, which exhibits capacity retention of 78% after 100 cycles. In addition, a temperature dependence performance of the full‐cell is studied from −10 to 40 °C, where it exhibits outstanding low‐temperature performance. The full‐cell provides an energy density of 78 Wh kg −1 at ambient temperature conditions. Recovery of active materials for SIB will drive down the cost/kWh and act as a green technology to dispose of spent Li‐ion batteries.
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