LLZO / PVDF-HFP compoliste electrolyte for All solid state Li metal battery with low interfacial resistance
발표자
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초록
내용
In order to fabricate all solid state battery, the interfacial resistance between solid electrolyte and electrode is important issue. Herein, we try to reduce interfacial resistance between solid electrolyte and anode via continuous process. First, we fabricate V2O5-x anode with sputtering process and LLZO/pvdf-hfp composite electrolyte were poured and dried right on to anode which can efficiently reduce interfacial resistance between cathode and electrolyte. Second, we generate Li metal anode via thermal evaporate process. In order to enhance adhesion between electrode and electrolyte, we proceed plasma treatment on to the electrolyte and it can increase ionic bonding which can efficiently reduce interfacial resistance. Optimized all solid state lithium metal battery shows not only high discharge capacity of 136.13 mAh/g at 50 oC but also, shows excellent cycling performance (99 %) over 1000cycles.