| Chemical Coupled PEDOT:PSS/Si Electrode: Suppressed Electrolyte Consumption Enables Long‑Term Stability |
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| 引用本文： | Xuejiao Liu,Zhixin Xu,Asma Iqbal,Ming Chen,Nazakat Ali,CheeTongJohn Low,Rongrong Qi,Jiantao Zai,Xuefeng Qian. Chemical Coupled PEDOT:PSS/Si Electrode: Suppressed Electrolyte Consumption Enables Long‑Term Stability[J]. 纳微快报(英文), 2021, 0(3): 197-208 |
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| 作者姓名： | Xuejiao Liu Zhixin Xu Asma Iqbal Ming Chen Nazakat Ali CheeTongJohn Low Rongrong Qi Jiantao Zai Xuefeng Qian |
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| 作者单位： | School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites;Warwick Electrochemical Engineering Group |
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| 基金项目： | The work is supported by Science and Technology Commission of Shanghai Municipality(20520710400);National Natural Science Foundation of China(21771124);Oceanic Interdisciplinary Program(project number SL2020MS020);SJTU-Warwick Joint Seed Fund(2019/20)of Shanghai Jiao Tong University. |
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| 摘 要： | Huge volume changes of Si during lithiation/delithiation lead to regeneration of solid-electrolyte interphase(SEI)and consume electrolyte.In this article,γ-glycidoxypropyl trimethoxysilane(GOPS)was incorporated in Si/PEDOT:PSS electrodes to construct a flexible and conductive artificial SEI,effectively suppressing the consumption of electrolyte.The optimized electrode can maintain 1000 mAh g^−1 for nearly 800 cycles under limited electrolyte compared with 40 cycles of the electrodes without GOPS.Also,the optimized electrode exhibits excellent rate capability.The use of GOPS greatly improves the interface compatibility between Si and PEDOT:PSS.XPS Ar+etching depth analysis proved that the addition of GOPS is conducive to forming a more stable SEI.A full battery assembled with NCM 523 cathode delivers a high energy density of 520 Wh kg^−1,offering good stability.
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| 关 键 词： | Conductive binder PEDOT:PSS CROSS-LINK XPS depth analysis Stable SEI Lithium-ion batteries |
Chemical Coupled PEDOT:PSS/Si Electrode: Suppressed Electrolyte Consumption Enables Long-Term Stability |
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| Xuejiao Liu,Zhixin Xu,Asma Iqbal,Ming Chen,Nazakat Ali,Chee Tong,John Low,Rongrong Qi,Jiantao Zai,Xuefeng Qian. Chemical Coupled PEDOT:PSS/Si Electrode: Suppressed Electrolyte Consumption Enables Long-Term Stability[J]. Nano-Micro Letters, 2021, 0(3): 197-208 |
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| Authors: | Xuejiao Liu Zhixin Xu Asma Iqbal Ming Chen Nazakat Ali Chee Tong John Low Rongrong Qi Jiantao Zai Xuefeng Qian |
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| Abstract: | Huge volume changes of Si during lithi-ation/delithiation lead to regeneration of solid-electro-lyte interphase (SEI) and consume electrolyte. In this article, ... |
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