Stretchable Lithium Metal Anode with Improved Mechanical and Electrochemical Cycling Stability

By Kai Liu, Biao Kong, Wei David Liu, Yongming Sun, Min‐Sang Song, Jun Chen, Yayuan Liu, Dingchang Lin, Allen Pei, Yi Cui. Joule, 2018

145 citations recorded by the source corpus.

Summary Stretchable batteries are key components of stretchable/flexible electronic devices. However, they typically exhibit low energy density due to the low lithium storage capability. Lithium (Li) metal is the ideal anode material, but it is ductile and the unstable electrochemical performance further hinders its practical applications. Herein, for the first time, a stretchable Li metal anode with stable mechanical and electrochemical performance is fabricated. It consists of one-entity 3D-patterned Li metal microdomains connected by highly elastic polymer rubbers. Upon stretching, the rubber absorbs the mechanical energy while the electroactive Li domains are not mechanically strained. Moreover, the whole electrode is fabricated by simply winding one single Cu wire, which is facile and cost-effective. The stretchable Li metal anode is a key step in the development of novel stretchable "lithium batteries" rather than traditional stretchable "lithium-ion batteries" to boost the energy density of stretchable energy-storage devices.

Subfields: Automotive Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/44c3a1922b439c053e57d633afc8c91f13681dca

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Citations in the corpus

Uncharted Waters: Super-Concentrated Electrolytes (2020, background): “Since its revival in 2010s,(106) diversified electrolyte systems have been explored to mitigate the growth of SEI and the subsequent Li-dendrite and ‘‘dead Li’’.(107,108) Suo et al.”