Synergized N, P dual-doped 3D carbon host derived from filter paper for durable lithium metal anodes

Chengyi Lu, Meng Tian, Chaohui Wei, Junhua Zhou, Mark H. Rümmeli, Ruizhi Yang

科研成果: 期刊稿件文章同行评审

15 引用 (Scopus)

摘要

Lithium metal is deemed a promising anode material for the next-generation batteries with high specific energy. Unfortunately, the growth of Li dendrites and infinite volume change during cycling, caused by the “hostless” feature of metallic Li, have posed a great challenge to the commercialization of Li metal anode. The introduction of appropriate host materials for Li metal is highly desirable. In this work, a N, P dual-doped 3D carbon derived from low-cost quantitative filter paper (NPCQP) is designed and fabricated for direct using as a host for Li metal anode. The resulting NPCQP host achieves a high deposition/stripping Coulombic efficiency of above 97.5 % with a low nucleation overpotential. Moreover, the NPCQP@Li symmetric cells enable an excellent long-term cycling performance (1000 h) with an ultralow voltage hysteresis (12 mV) and stable interface behavior. When paired with the commercial LiFePO4 cathode, the full cell with NPCQP@Li anode displays impressive long-term cyclic stability and rate capability, outperforming the counter cell with bare Li anode. This contribution sheds light on the rational design of viable host for practical lithium metal anodes.

源语言英语
页(从-至)1-10
页数10
期刊Journal of Colloid and Interface Science
632
DOI
出版状态已出版 - 15 2月 2023
已对外发布

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