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| 1 | Stable interfaces constructed by concentrated ether electrolytes to render robust lithium metal batteries显示文摘Lithium metal batteries(LMBs)are highly considered as promising candidates for next-generation energy storage systems.However,routine electrolytes cannot tolerate the high potential at cathodes and low potential at anodes simultaneously,leading to severe interfacial reactions.Herein,a highly concentrated electrolyte(HCE)region trapped in porous carbon coating layer is adopted to form a stable and highly conductive solid electrolyte interphase(SEI)on Li metal surface.The protected Li metal anode can potentially match the high-voltage cathode in ester electrolytes.Synergistically,this ingenious design promises high-voltage-resistant interfaces at cathodes and stable SEI with abundance of inorganic components at anodes simultaneously in high-voltage LMBs.The feasibility of this interface-regulation strategy is demonstrated in Li|LiFePO_(4) batteries,realizing a lifespan twice as long as the routine cells,with a huge capacity retention enhancement from 46.4%to 88.7%after 100 cycles.This contribution proof-ofconcepts the emerging principles on the formation and regulation of stable electrode/electrolyte interfaces in the cathode and anode simultaneously towards the next-generation high-energy-density batteries. | He Liu Tao Li Xiangqun Xu Peng Shi Xueqiang Zhang Rui Xu Xinbing Cheng Jiaqi Huang | 2021 | Chinese Journal of Chemical Engineering2021，34，9： | 5 |
| 2 | 二次电池中金属锂负极沉脱机理研究进展显示文摘金属锂负极是下一代高比能二次电池备受关注的负极材料,以金属锂为负极的锂金属电池具备极高的理论能量密度,但其仍存在充放电循环效率低、电池寿命短等问题。要实现高能量密度高安全性的锂金属电池的合理设计和优化,需要对金属锂负极中锂金属沉积脱出过程的离子输运、电子输运、界面反应等机制机理有清晰的认识。本文针对金属锂负极中存在的枝晶生长、死锂形成、固体电解质界面膜作用等机理问题,综述了研究者们在其沉脱机理的模型与理论计算、实验研究等方面做出的诸多研究进展,为锂金属电池的合理设计提供了更全面的机理认识。 | 张睿 沈馨 袁洪 程新兵 黄佳琦 张强 | 2021 | 化工学报2021，72，12： | 1 |
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