Enhanced performance of solid-state Li–O2 battery using a novel integrated architecture of gel polymer electrolyte and nanoarray cathode
来源期刊：Rare Metals2018年第6期
论文作者：Liang Xiao Er-Wei Li Jing-Yu Yi Wen Meng Bo-Hua Deng Jin-Ping Liu
文章页码：527 - 535
摘 要：The present work proposes a novel strategy to fabricate an integrated architecture of gel polymer electrolyte（GPE）–nanoarray cathode for lithium–O2 batteries（LOBs）. As a proof-of-concept experiment, the photo-initiated in situ polymerization of GPE was carried out via incorporating the precursor solution in advance into a selfstanding binder-free oxygen electrode of Co3O4 nanosheets array grown on carbon cloth（Co3O4@CC）, forming an integrated GPE–Co3O4@CC architecture. The performance of the solid-state LOBs using the GPE–Co3O4@CC assembly is greatly enhanced compared to the counterparts with a traditional cell structure, in which GPE was sandwiched by a lithium metal and a cathode. The enhanced performance is ascribed to the combination of the in situ polymerization of GPE and the versatile structure of nanoarray electrode, which results in abundant interfacial contacts between GPE and electrode. This work presents an alternative way to develop high-performance solid-state LOBs by combining the advantages of both gel polymer electrolytes and nanoarray electrodes.
Liang Xiao1，Er-Wei Li1，Jing-Yu Yi1，Wen Meng1，Bo-Hua Deng1，Jin-Ping Liu1,2
1. School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology
摘 要：The present work proposes a novel strategy to fabricate an integrated architecture of gel polymer electrolyte（GPE）–nanoarray cathode for lithium–O2 batteries（LOBs）. As a proof-of-concept experiment, the photo-initiated in situ polymerization of GPE was carried out via incorporating the precursor solution in advance into a selfstanding binder-free oxygen electrode of Co3O4 nanosheets array grown on carbon cloth（Co3O4@CC）, forming an integrated GPE–Co3O4@CC architecture. The performance of the solid-state LOBs using the GPE–Co3O4@CC assembly is greatly enhanced compared to the counterparts with a traditional cell structure, in which GPE was sandwiched by a lithium metal and a cathode. The enhanced performance is ascribed to the combination of the in situ polymerization of GPE and the versatile structure of nanoarray electrode, which results in abundant interfacial contacts between GPE and electrode. This work presents an alternative way to develop high-performance solid-state LOBs by combining the advantages of both gel polymer electrolytes and nanoarray electrodes.
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