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A facile grinding approach to embed red phosphorus in N,P-codoped hierarchical porous carbon for superior lithium storage
Science China Materials ( IF 6.8 ) Pub Date : 2019-09-06 , DOI: 10.1007/s40843-019-9499-2
Zhuzhu Du , Wei Ai , Chenyang Yu , Yujiao Gong , Ruyi Chen , Gengzhi Sun , Wei Huang

Despite red phosphorous (P)-based anodes hold great promise for advanced lithium-ion batteries due to their high theoretical capacity, their practical application is hindered by poor electronic conductivity and drastic volume changes during charge-discharge processes. In order to tackle these issues, herein, a facile grinding method was developed to embed sub-micro- and nano-sized red P particles in N,P-co-doped hierarchical porous carbon (NPHPC). Such a unique structure enables P@NPHPC long-cyclic stability (1120 mA h g−1 after 100 cycles at 100 mA g−1) and superior rate performance (248 mA h g−1 at 6400 mA g−1). It is believed that our method holds great potential in scalable synthesis of P@carbon composites for future practical applications.



中文翻译:

一种简便的研磨方法,可将红磷嵌入N,P掺杂的分级多孔碳中,以实现出色的锂存储

尽管基于红磷(P)的阳极由于其理论容量高而对高级锂离子电池具有广阔的前景,但它们的实际应用受到不良的电子电导率和充放电过程中体积急剧变化的阻碍。为了解决这些问题,本文中,开发了一种容易的研磨方法以将亚微米和纳米尺寸的红色P颗粒嵌入N,P共掺杂的分级多孔碳(NPHPC)中。这种独特的结构使2P @ NPHPC长循环稳定性(1120毫安汞柱-1后100次循环以100mA克-1)和优异的倍率性能(248毫安汞柱-1在6400毫安克-1)。相信我们的方法在可扩展的P @碳复合材料的合成中具有巨大的潜力,可用于未来的实际应用。

更新日期:2019-09-06
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