Accommodating lithium into 3D current collectors with a submicron skeleton towards long-life lithium metal anodes

By Chunpeng Yang, Ya‐Xia Yin, Shuai-Feng Zhang, Nianwu Li, Yu‐Guo Guo. Nature Communications, 2015

1,399 citations recorded by the source corpus.

Lithium metal is one of the most attractive anode materials for electrochemical energy storage. However, the growth of Li dendrites during electrochemical deposition, which leads to a low Coulombic efficiency and safety concerns, has long hindered the application of rechargeable Li-metal batteries. Here we show that a 3D current collector with a submicron skeleton and high electroactive surface area can significantly improve the electrochemical deposition behaviour of Li. Li anode is accommodated in the 3D structure without uncontrollable Li dendrites. With the growth of Li dendrites being effectively suppressed, the Li anode in the 3D current collector can run for 600 h without short circuit and exhibits low voltage hysteresis. The exceptional electrochemical performance of the Li-metal anode in the 3D current collector highlights the importance of rational design of current collectors and reveals a new avenue for developing Li anodes with a long lifespan. A major problem with the use of lithium metal as the battery anode is the undesired lithium dendrite formation during cycling. Here, the authors show that the problem can be mitigated with a carefully designed three-dimensional porous current collector.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/87916c64b99b5cd6d99dc9c8d48cd6ff326723bf

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In Electrical and Electronic Engineering

1. Xueliang Sun
2. Sen Xin
3. Xuewu Ou
4. Xiaohe Song
5. Miao-miao Zhang
6. Yu‐Guo Guo
7. Yongbing Tang
8. Xin-bo Zhang

Citations in the corpus

• Honeycomb-like porous 3D nickel electrodeposition for stable Li and Na metal anodes (2018, background): “Many 3D structured hosts have been explored including various 3D porous Cu substrates [27-30], free-standing Cu nanowires [31], lithiophilic Cu-Ni core-shell nanowires [24], and 3D graphene@Ni scaffold [32] to name a few.”
• Rechargeable batteries based on anion intercalation graphite cathodes (2019, methodology): “As a typical example of MIBs, LIB usually consists of anode generally made of graphite materials, Si-based materials [53, 54] and recently developed lithium metal anodes [55-66]), cathode using lithium-containing transition metal oxide [19, 67-70], such as LiCoO2, LiMn2O4, LiFePO4 etc.”
• Strategies to anode protection in lithium metal battery: A review (2021, neutral): “However, the safety issues caused by random growth of Li dendrites during Li deposition and low Coulombic efficiency (CE) induced by the formation of an unstable solid electrolyte interface (SEI) severely hinder its practical application.(23,24) However, the superior ultra-high energy density positi”