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Solution‐Processable Design of Fiber‐Shaped Wearable Zn//Ni(OH) 2 Battery
Author(s) -
Chen Ruyi,
Shi Peipei,
Gong Yujiao,
Yu Chenyang,
Hua Li,
Li Li,
Zhou Jinyuan,
Xu Ting,
Zhang Yani,
Sun Gengzhi
Publication year - 2018
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201800318
Subject(s) - battery (electricity) , materials science , flexibility (engineering) , fiber , electronics , voltage , energy storage , wearable technology , electrical engineering , wearable computer , power (physics) , composite material , computer science , engineering , statistics , physics , mathematics , quantum mechanics , embedded system
The rising of flexible and potable electronics urgently calls for matchable and miniaturized energy storage system as power supply. Herein, we develop a solution‐processable method to fabricate Ni@Ni(OH) 2 fiber to design an all‐solid‐state fiber‐shaped Zn//Ni(OH) 2 battery. This battery exhibits a high open circuit voltage of 1.75 V which is close to the theoretical value, considerable discharge capacity of 704 μAh cm −3 at current density of 0.5 A g −1 , good rate capability with 75 % capacity retention when the discharge current increases from 0.5 A g −1 to 5 A g −1 and good cycling stability (92 % capacity retention after 2000 charge‐discharge cycles). Furthermore, the device performance remains unchanged under bending conditions, showing good flexibility and stability. It is believed that our design provides a promising strategy to fabricate long fiber‐shaped Zn//Ni(OH) 2 battery as power supply for wearable electronics in future practical applications.