期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 31, 页码 17311-17317出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b04421
关键词
Cu2ZnSnS4; lithium phosphorus oxynitride; Ni foam; thin film; lithium-ion battery
资金
- Program for New Century Excellent Talents in University [2007NCET-07-0723]
- Aeronautical Science Foundation of China [2008ZH68002]
- National Natural Science Foundation of China [60936003]
Cu2ZnSnS4 (CZTS) is an important material in low-cost thin film solar cells and is also a promising candidate for lithium storage. In this work, a novel three-dimensional CZTS film coated with a lithium phosphorus oxynitride (LiPON) film is fabricated for the first time and is applied to thin-film lithium-ion batteries. The modified film exhibits an excellent performance of similar to 900 mAh g(-1) (450 mu Ah cm(-2) mu m(-1)), even after 75 cycles. Morphology integrity is still maintained after repeated lithiation/delithiation, and the main reaction mechanism is analyzed in detail. The significant findings from this study indicate the striking advantages of modifying both the surface and structure of alloy-based electrodes for energy storage.
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