A gum-like lithium-ion battery based on a novel arched structure.

Weng, Wei; Sun, Qian; Zhang, Ye; He, Sisi; Wu, Qingqing; Deng, Jue; Fang, Xin; Guan, Guozhen et al. · Adv Mater · 2015

basic_science · Level V

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Abstract

Stretchable lithium-ion batteries (LIBs) consisting of an arch structure and a stretchable anode and cathode are developed using a general strategy. The LIB maintains a remarkable and stable electrochemical performance after hundreds of stretching cycles at a strain of 400%. Compared with other stretchable LIBs, which stretch at the device level, but whose components (electrodes) remain rigid, the component-level stretchability is here the design key to the LIB's highly stable performance.