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Perception of fundamental science to boost lithium metal anodes toward practical application

Green energy & Environment 2024年第3期9卷 454-472页

作者： Jinkun Wang Li Wang Hong Xu Li sheng Xiangming He Institute of Nuclear and New energy Technology Tsinghua UniversityBeijing100084China

As a key material for lithium metal batteries(LMBs),lithium metal is one of the most promising anode materials to break the bottleneck of battery energy density and a commonly used active material for reference *** lithium anodes are regarded as the holy grail of lithium batteries,decades of exploration have not led to the successful commercialization of LMBs,due mainly to the challenges related to the inherent properties of lithium *** pave the way for further investigation,herein,a comprehensive review focusing on the fundamental science of lithium are ***,the natures of lithium atoms and their isotopes,lithium clusters and lithium crystals are revisited,especially their structural and energetic ***,the electrochemical properties of lithium metal are *** important concepts and scientific questions,including the electronic structure of lithium,influence of high pressure and low temperature on the properties of lithium,factors influencing lithium deposition,generation of lithium dendrites,and electrode potential of lithium in different electrolytes,are explained and analyzed in *** to improve the performance of lithium anodes and thoughtfulness about the electrode potential in lithium battery research are proposed.

关键词： Lithium Cluster Crystal Physicochemical property Fundamental science

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维普期刊数据库

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Impact of Lithium-Ion Coordination on Lithium Electrodeposition

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energy & Environmental Materials 2023年第1期6卷 177-183页

作者： Li sheng Yanzhou Wu Jiekang Tian Li Wang Jianlong Wang Yaping Tang Hong Xu Xiangming He Institute of Nuclear and New energy Technology Tsinghua UniversityBeijing 100084China school of Pharmaceutical sciences Tsinghua UniversityBeijing 100084China center of Pharmaceutical Technology Tsinghua UniversityBeijing 100084China

The lithium dendrite and parasitic reactions are two major challenges for lithium(Li)metal anode—the most promising anode materials for high-energy-density *** this work,both the dendrite and parasitic reactions that occurred between the liquid electrolyte and Li-metal anode could be largely inhibited by regulating the Li+-solvation *** saturated Li+-solvation species exist in commonly used LiPF 6 liquid electrolyte that needs extra energy to desolvation during *** solvation induced high-energy state Li-ions would be more energy favorable during the electron-reduction process,dominating the competition with solvent reduction *** Li-symmetric cells that are cycling at higher temperatures show better performance;the cycled lithium metal anode with metallic lustre and the dendrite-free surface is *** calculation and experimental measurements reveal the existence of high-energy state Li+-solvates species,and their concentration increases with *** study provides insight into the Li+-solvation structure and its electrodeposition characteristics.

关键词： Li^(+)-solvates lithium dendrite-free lithium metal anode molecular dynamics parasitic reactions

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维普期刊数据库

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