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ALL-SOLID-STATE POLYMER ELECTROLYTE WITH PLASTIC CRYSTAL MATERIALS FOR SECONDARY LITHIUM-METAL BATTERIES

机译:全固态聚合物电解质,具有塑料晶体材料,用于二次锂金属电池

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Lithium metal is the best anode candidate for high energy density batteries because it has a very high theoretical specific capacity of 3861 mAh g?1 compared to 372 mAh g?1 of the carbon anode in lithium-ion batteries[1]. Unfortunately, both the promising batteries with lithium anode have encountered the follow problems: (i) Side-reaction between lithium metal and liquid electrolyte, giving rise to electrolyte consumption, interface resistance increase and capacity loss during cycling; (ii) Safety hazards caused by dendrite formation during cycling[2,3]. All-solid-state lithium polymer batteries are of great interest due to their high energy density and shape variability[4]. Solid polymer electrolyte (SPE) forms a key part of rechargeable polymer batteries. High ionic conductivity at room temperature and suitable mechanical property along with important technological advantages are related to safety and electrochemical stability makes it attractive compared to liquid electrolyte which is used in commercially Li-ion batteries [5].
机译:锂金属是高能量密度电池的最佳阳极候选者,因为它具有3861mAhg的理论比容量为3861mAh-1,而锂离子电池中的碳阳极的372mah〜1相比[1]。不幸的是,与锂阳极的有前途的电池已经遇到的问题如下:(ⅰ)的锂金属和液体电解质,循环期间引起电解质的消耗,界面电阻增加和容量损失之间的副反应; (ii)循环过程中枝晶形成引起的安全危害[2,3]。由于其高能量密度和形状变异性,全固态锂聚合物电池具有很大的兴趣[4]。固体聚合物电解质(SPE)形成可再充电聚合物电池的关键部分。室温下的高离子电导率和合适的机械性能以及重要的技术优势与安全性和电化学稳定性相关,与商业上锂离子电池中使用的液体电解质相比,它具有吸引力[5]。

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