Arbitrary skin metallization by pencil-writing inspired solid-ink rubbing for advanced energy storage and harvesting  

作　　者：Yonghan Zhou Zhongfeng Ji Wenrui Cai Xuewei He Ruiying Bao Xuewei Fu Wei Yang Yu Wang 

机构地区：[1]College of Polymer Science and Engineering,State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610065,Sichuan,China

出　　处：《Journal of Energy Chemistry》2024年第1期592-602,I0013,共12页能源化学（英文版）

基　　金：the financial support from the National Natural Science Foundation of China (52125301 and 52203123);the Fundamental Research Funds for the Central Universities;partially sponsored by the Double First-Class Construction Funds of Sichuan University。

摘　　要：The development of a durable metallic coating on diverse substrates is both intriguing and challenging,particularly in the research of metal-conductive materials for applications such as batteries,soft electronics,and beyond.Herein,by learning from the pencil-writing process,a facile solid-ink rubbing technology(SIR-tech)is invented to address the above challenge.The solid-ink is exampled by rational combination of liquid metal and graphite particles.By harnessing the synergistic effects between rubbing and adhesion,controllable metallic skin is successfully formed onto metals,woods,ceramics,and plastics without limitation in size and shape.Moreover,outperforming pure liquid-metal coating,the composite metallic skin by SIR-tech is very robust due to the self-lamination of graphite nanoplate exfoliated by liquid-metal rubbing.The critical factors controlling the structures-properties of the composite metallic skin have been systematically investigated as well.For applications,the SIR-tech is demonstrated to fabricate high-performance composite current collectors for next-generation batteries without traditional metal foils.Meanwhile,advanced skin-electrodes are further demonstrated for stable triboelectricity generation even under temperature fluctuation from-196 to 120℃.This facile and highly-flexible SIR-tech may work as a powerful platform for the studies on functional coatings by liquid metals and beyond.

关 键 词：Microadhesion guided technology Skin metallization by solid-ink rubbing Liquid metal composites Composite current collector Batteries and triboelectric nanogenerators 

分 类 号：TB34[一般工业技术—材料科学与工程]