Simultaneously Regulating Lithium Ion Flux and Surface Activity for Dendrite-Free Lithium Metal Anodes
Source abstract
Abstract
Li dendrite growth due to uncontrolled Li plating/stripping processes has been a challenge for the application of Li metal anodes in high energy secondary batteries. A novel strategy is proposed in this work to address this issue, which is based on simultaneously regulating Li ion (Li+) flux and Li metal surface activity by a terpolymer cladding that orients the Li+ flux and mitigates the side reactions for Li plating/striping. This cladding provides the Li anode with dendrite-free surface morphology and enhanced electrochemical performances. Stable cycling of 800 and 1400 h is achieved for Li symmetric cells in carbonate-based and ether-based electrolytes, respectively. In addition, the asymmetric Li–LiFePO4 and Li–sulfur cells attain a prolonged cycle lifespan with reduced interfacial resistance after cycling. These performances might be further improved by more delicately designing the polymer structure and assembling the cladding, which might help fulfill the practical applications of Li anodes in high energy batteries.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
Department of Physics, Tsinghua University, Beijing 100084, China
Funding
Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Guangdong Province
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