Facile synthesis of highly porous Ni-Sn intermetallic microcages with excellent electrochemical performance for lithium and sodium storage.
basic_science · Level V
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- Record sourced from PubMed, PMID 25286289.
- Also identified by DOI 10.1021/nl5028606.
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Abstract
Highly porous Ni3Sn2 microcages composed of tiny nanoparticles were synthesized by a facile template-free solvothermal method (based on Ostwald ripening and etching mechanism) for use as anode materials for high-capacity and high-rate-capability Li-ion and Na-ion batteries. The Ni3Sn2 porous microcages exhibit highly stable and substantial discharge capacities of the amount to 700 mA h g(-1) after 400 cycles at 0.2C and 530 mA h g(-1) after 1000 cycles at 1C for Li-ion battery anode. For Na-ions storage performance, a reversible capacity of approximate 270 mA h g(-1) is stably maintained at 1C during the first 300 cycles.