无负极锂金属电池因为有着超高的能量密度而受到广泛关注,但是其循环性能差导致其离实际运用还有很长的距离,一般来说循环寿命很难超过100周。近期,我院研究生罗蕊等关于无负极锂金属电池的研究可以使其在2C倍率下循环1000周,相关论文“Bimetallic MOF-Derivatives Enabled Multi-Sited Current Collector for High-Performance Anode-Free Lithium Metal Battery”在自然指数期刊《Chemical Communications》(IF=4.2)上发表。
论文简介如下:
Anode-free lithium metal batteries (AFLMBs) offer ultrahigh energy density but suffer from unstable interfaces and nonuniform lithium deposition. Herein, a Ni/CoO-modified carbon cloth (CC@Ni/CoO) derived from bimetallic NiCo-MOFs is developed as a multi-sited functional current collector to regulate lithium nucleation and growth. The synergistic effect of multiple nucleation sites (CoO and Ni), combined with the conductive 3D framework, provides abundant lithiophilic sites and stable ion transport pathways, enabling uniform lithium deposition and suppressing dendrite formation. Consequently, the anode-free CC@Ni/CoO||LFP full cell maintains stable performance over 1000 cycles at 2C with a high capacity retention of 91.88 %. By implementing a rational interfacial design, this work holds significant promise for enabling future high-energy-density storage technologies.


