Abstract
The dissolution and “shuttle effect” of lithium polysulfides (LiPSs) hinder the application of lithium-sulfur (Li-S) batteries. To solve those problems, inspired by natural materials, a nano-hydroxyapatite@porous carbon derived from chicken cartilage (nano-HA@CCPC) was fabricated by employing a simple pre-carbonization and carbonization method, and applied in Li-S batteries. The nano-HA@CCPC would provide a reactive interface that allows efficient LiPSs reduction. With a strong affinity for LiPSs and an excellent electronic conductive path for converting LiPSs, the shuttle effect of LiPSs was confined and the redox kinetics of LiPSs was substantially enhanced. Li-S batteries employing nano-HA@CCPC-modified separators exhibited long cycle life and improved rate capability. At 0.5 C after 325 cycles, a specific capacity of 815 mAh·g-1 and a low capacity fading rate of 0.051% were obtained. The superior properties, sustainable raw materials, and facile preparation process make nano-HA@CCPC a promising additive material for practical Li-S batteries.
Graphical Abstract
Keywords
conductive carbon framework, nano-hydroxyapatite, reactive interface, modified separator, redox reaction kinetics, lithium-sulfur batteries
Publication Date
2022-11-28
Online Available Date
2022-11-28
Revised Date
2022-11-04
Received Date
2022-09-21
Recommended Citation
Jia-Yu Wang, Xue-Feng Tong, Qi-Fan Peng, Yue-Peng Guan, Wei-Kun Wang, An-Bang Wang, Nai-Qiang Liu, Ya-Qin Huang.
Efficient Interface Enabled by Nano-Hydroxyapatite@Porous Carbon for Lithium-Sulfur Batteries[J]. Journal of Electrochemistry,
2022
,
28(11): 2219008.
DOI: 10.13208/j.electrochem.2219008
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol28/iss11/4
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