In situ preparation of CuS cathode with unique stability and high rate performance for lithium ion batteries
2012; Elsevier BV; Volume: 80; Linguagem: Inglês
10.1016/j.electacta.2012.07.004
ISSN1873-3859
AutoresYourong Wang, Xianwang Zhang, Peng Chen, Hantao Liao, Pengcheng He,
Tópico(s)Advanced battery technologies research
ResumoA simple approach, for the first time, was presented for in situ preparation of the CuS cathode. The obtained CuS cathodes were investigated by the measurements of X-ray diffraction pattern, scanning electronic microscopy, and electrochemical performance. The results indicate the CuS cathodes are composed of plenty of nano flakes, which construct a large 3-D net structure. Moreover, the CuS cathodes exhibit reversible capacity of 447.4, 414.1, 389.9 and 376.0 mAh g−1 at 0.2 C, 0.5 C, 1 C and 2 C respectively and excellent cycle stability for more than 100 cycles. The possible mechanism of the unique stability of the CuS cathode was discussed.
Referência(s)