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Alkali Metal Ion Substituted Carboxymethyl Cellulose as Anode Polymeric Binders for Rapidly Chargeable Lithium-Ion Batteries

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Energy & Environmental Materials 2024年第1期7卷 81-86页

作者： Seoungwoo Byun Zhu Liu Dong Ok Shin Kyuman Kim Jaecheol Choi Youngjoon Roh Dahee Jin Seungwon Jung Kyung-Geun Kim Young-Gi Lee Stefan Ringe Yong Min Lee department of Energy Science and Engineering Daegu Gyeongbuk Institute of Science and Technology (DGIST) ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang University Intelligent Sensors Research Section Electronics and Telecommunications Research Institute (ETRI) department of Advanced device Technology University of Science and Technology (UST) Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science University of Wollongong Energy Science and Engineering Research Center Daegu Gyeongbuk Institute of Science and Technology (DGIST) department of Chemistry Korea University

The increasing demand for short charging time on electric vehicles has motivated realization of fast chargeable lithium-ion batteries（LIBs）.However,shortening the charging time of LIBs is limited by Li+intercalation... 详细信息

关键词： de-solvation digital twins fast charging graphite anodes polymeric binders

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Revealing the effect of electrolyte coordination structures on the intercalation chemistry of batteries

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Journal of Energy Chemistry 2023年第6期81卷 149-156,I0006页

作者： Chao Wang Xianjin Li Guiming Zhong Caixia Meng Shiwen Li Guohui Zhang Yanxiao Ning Xianfeng Li Qiang Fu State Key Laboratory of Catalysis iChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China department of Chemical Physics University of Science and Technology of ChinaHefei 230026AnhuiChina Laboratory of Advanced Spectro-electrochemistry and Li-ion Batteries Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian116023LiaoningChina Division of Energy Storage Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023LiaoningChina

In-depth understanding of the electrolyte-dependent intercalation chemistry in batteries through direct operando/in situ characterizations is crucial for the development of the high-performance ***,taking the Al/graphite battery as a model system,the effect of electrolyte coordination structure on the intercalation processes has been investigated over the batteries with either 1-hexyl-3-methylimidazolium chloride(HMICl)-AlCl_(3) or 1-ethyl-3-methylimidazolium chloride(EMICl)-AlCl_(3) ionic liquid electrolyte using operando X-ray photoelectron spectroscopy(XPS)and X-ray *** a weaker anion-cation interaction in HMI-based electrolyte,the XPS-derived atomic ratio between cointercalated N and intercalated Al is 0.9,which is lower than 1.6 for EMI-based *** to the additional de-solvation process,the batteries with the HMI-based electrolyte show a lower ionic diffusion rate,capacity,and cycling performance,which agree with the operando characterization *** findings highlight the critical role of the electrolyte coordination structure on the(co-)intercalation chemistry.

关键词： Operando surface characterization Electrolyte coordination structure de-solvation Intercalation chemistry

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