Journal
POLYMERS
Volume 10, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/polym10080930
Keywords
sulfur/lithium-ion full battery; prelithiated graphite anode; stabilized lithium metal powder; ternary sulfur/polyacrylonitrile/SiO2 composite; electrochemical performance
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Funding
- Program for the Outstanding Young Talents of Hebei Province
- Guangdong Provincial Science and Technology Project [2017A050506009]
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In the present study, a novel sulfur/lithium-ion full battery was assembled while using ternary sulfur/polyacrylonitrile/SiO2 (S/PAN/SiO2) composite as the cathode and prelithiated graphite as the anode. For anode, Stabilized Lithium Metal Powder (SLMP) was successfully transformed into lithiated graphite anode. For cathode, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed that SiO2 was uniformly distributed on S/PAN composites, where SiO2 served as an effective additive due to its ultra high absorb ability and enhanced ability in trapping soluble polysulfide. The tested half-cell based on S/PAN/SiO2 composite revealed high discharge capacity of 1106 mAh g(-1) after 100 cycles at 0.2 C. The full cell based on prelithiated graphite//S/PAN/SiO2 composite system delivered a specific capacity of 810 mAh g(-1) over 100 cycles.
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