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3D Printed High‐Loading Lithium‐Sulfur Battery Toward Wearable Energy Storage
Author(s) -
Chen Chenglong,
Jiang Jiangmin,
He Wenjie,
Lei Wu,
Hao Qingli,
Zhang Xiaogang
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201909469
Subject(s) - materials science , battery (electricity) , wearable computer , energy storage , wearable technology , 3d printing , electronics , optoelectronics , nanotechnology , electrical engineering , computer science , power (physics) , embedded system , composite material , engineering , physics , quantum mechanics
Wearable electronic devices are the new darling of consumer electronics, and energy storage devices are an important part of them. Here, a wearable lithium‐sulfur (Li‐S) bracelet battery using three‐dimensional (3D) printing technology (additive manufacturing) is designed and manufactured for the first time. The bracelet battery can be easily worn to power the wearable device. The “additive” manufacturing characteristic of 3D printing provides excellent controllability of the electrode thickness with much simplified process in a cost‐effective manner. Due to the conductive 3D skeleton providing interpenetrating transmission paths and channels for electrons and ions, the 3D Li‐S battery can provide 505.4 mAh g −1 specific capacity after 500 cycles with an active material loading as high as 10.2 mg cm −1 . The practicality is illustrated by wearing the bracelet battery on the wrist and illuminating the red light‐emitting diode. Therefore, the bracelet battery manufactured by 3D printing technology can address the needs of the wearable power supply.