典型文献
3D flame-retardant skeleton reinforced polymer electrolyte for solid-state dendrite-free lithium metal batteries
文献摘要:
For solid polymer electrolytes(SPEs),improving their mechanical and electrochemical properties is the key to obtaining batteries with higher safety and higher energy density.Herein,a novel synergistic strat-egy proposed is preparing a 3D flame-retardant skeleton(3DPA)and adding nano-multifunctional fillers(Li-ILs@ZIF-8).In addition to providing mechanical support for the polyethylene oxide(PEO)matrix,3DPA also has further contributed to the system's flame retardancy and further improved the safety.Simultaneously,the electrochemical performance is fully guaranteed by rigid Li-ILs@ZIF-8,which pro-vides fast migration channels for Li+,reduces the crystallinity of PEO and effectively inhibits lithium den-drites.The limiting oxygen index of the optimal sample(PL3Z/PA)is as high as 20.5%,and the ionic conductivity reaches 2.89×10-4 and 0.91×10-3 S cm-1 at 25 and 55℃,respectively.The assembled Li|PL3Z/PA|Li battery can be cycled stably for more than 1000 h at a current density of 0.1 mA cm-2 with-out short circuit being pierced by lithium dendrites.The specific capacity of the LFP|PL3Z/PA|Li battery was 160.5 mAh g-1 under a current density of 0.5 C,and the capacity retention rate was 90.0%after 300 cycles.
文献关键词:
中图分类号:
作者姓名:
Xiaojiao Zheng;Jiawei Wu;Jing Chen;Xiaodong Wang;Zhenglong Yang
作者机构:
Shanghai Key Laboratory of D&A for Metal-Functional Materials,School of Materials Science and Engineering,Tongji University,Shanghai 200092,China;Shanghai Key Laboratory of Special Artifficial Microstructure Materials and Technology&School of Physics Science and Engineering,Tongji University,Shanghai 200092,China
文献出处:
引用格式:
[1]Xiaojiao Zheng;Jiawei Wu;Jing Chen;Xiaodong Wang;Zhenglong Yang-.3D flame-retardant skeleton reinforced polymer electrolyte for solid-state dendrite-free lithium metal batteries)[J].能源化学,2022(08):174-181
A类:
3DPA,PL3Z,pierced
B类:
flame,retardant,skeleton,reinforced,polymer,solid,state,free,lithium,metal,batteries,For,electrolytes,SPEs,improving,their,mechanical,electrochemical,properties,key,obtaining,higher,safety,energy,density,Herein,novel,synergistic,strat,egy,proposed,preparing,adding,nano,multifunctional,fillers,ILs,ZIF,In,addition,providing,support,polyethylene,oxide,PEO,matrix,also,has,further,contributed,system,retardancy,improved,Simultaneously,performance,fully,guaranteed,by,rigid,which,vides,fast,migration,channels,Li+,reduces,crystallinity,effectively,inhibits,limiting,oxygen,optimal,sample,ionic,conductivity,reaches,respectively,assembled,battery,can,cycled,stably,more,than,current,out,short,circuit,being,dendrites,specific,capacity,LFP,was,mAh,under,retention,rate,after,cycles
AB值:
0.573627
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