CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China , Hefei, 230026, China.
Nano Lett. 2014 Nov 12;14(11):6387-92. doi: 10.1021/nl5028606. Epub 2014 Oct 8.
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.
采用一种简便的无模板溶剂热法（基于奥斯特瓦尔德熟化和蚀刻机制）合成了由微小纳米颗粒组成的高多孔 Ni3Sn2 微笼，用作高容量和高倍率能力锂离子和钠离子电池的阳极材料。Ni3Sn2 多孔微笼表现出高度稳定的和实质性的放电容量，在锂离子电池阳极中，在 0.2C 下经过 400 次循环后达到 700 mA h g(-1)，在 1C 下经过 1000 次循环后达到 530 mA h g(-1)。对于钠离子存储性能，在最初的 300 次循环中，以 1C 的速率稳定保持约 270 mA h g(-1)的可逆容量。
