期刊
NANOSCALE
卷 14, 期 10, 页码 3935-3945出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1nr08194b
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资金
- Ningbo S&T Innovation 2025 Major Special Program [2018B10061, 2018B10087, 2019B10044, 2020Z101]
- Central University Basic Scientific Research Business Expenses Special Funds [2682020CX32]
- 21C Innovation Laboratory, Contemporary Amperex Technology Ltd [21C-OP-202004]
This research provides a new hierarchical lithiophilic structure to suppress severe lithium dendrite growth and promote the development of high-energy-density lithium metal batteries for practical applications.
Suppressing severe lithium (Li) dendrite growth is a formidable challenge for high-energy-density lithium (Li) metal batteries (LMBs). Conventional lithiophilic coatings, despite their ability to improve the Li plating morphology, generate a compact conversion layer with a low electrolyte volume fraction, impeding the mass- and charge-transfers at the electrode interface and offsetting the benefits brought by lithiophilicity. Herein, a lithiophilic shuttle is obtained by the superposition of very thin layered copper oxide (L-CuO) flakes. After the conversion process, conjoined channels with a high electrolyte volume fraction can be maintained in the lithiophilic shuttle for fast and lateral Li+ transfer. In addition to the inherent high-Li-affinity and layered-structure-induced capacitive feature, the lithiophilic shuttle can afford stable and reversible Li plating/stripping at high current densities up to 3 mA cm(-2) in LMBs with a practical capacity of 5 mA h cm(-2). This work provides a new hierarchical lithiophilic structure to push forward high-energy-density LMBs for practical applications.
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