阳极
碳化
法拉第效率
材料科学
碳纤维
可再生能源
钠离子电池
储能
生物量(生态学)
电池(电)
化学工程
制浆造纸工业
废物管理
化学
复合材料
复合数
电极
扫描电子显微镜
功率(物理)
物理
电气工程
海洋学
物理化学
量子力学
地质学
工程类
作者
Tianqi Yin,Zhengli Zhang,Lizhi Xu,C. Li,Dongdong Han
标识
DOI:10.1002/open.202300178
摘要
Abstract Efficient energy storage systems are crucial for the optimal utilization of renewable energy. Sodium‐ion batteries (SIBs) are considered potential substitutes for next‐generation low‐cost energy storage systems due to the low cost and abundance of sodium resources. However, the industrialization of SIBs faces a great challenge in terms of the anode. Hard carbon could be a promising anode material due to its high capacity and low cost which originates from biomass. This study used pre‐treatment and template carbonization methods to extract a hard carbon material from a large amount of discarded biomass in bamboo powder waste. This material has a good initial Coulombic efficiency of 78.6 % and good cycling stability when applied to sodium ion batteries.Typically, the optimal hard carbon material is used as the anode to prepare sodium ion battery prototypes to demonstrate their potential applications. The anode exhibited excellent sodium storage performance with a reversible capacity of 303 mAh ⋅ g −1 at 1 C rate and good cycling performance, retaining 92.0 % of its capacity after 100 cycles. These results demonstrate that BPPHC is a promising candidate for anode material in sodium‐ion batteries. This work suggests that bamboo powder could be a low‐cost anode material for SIBs.
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