电池(电)
功率密度
能量密度
功率(物理)
材料科学
数码产品
电气工程
面积密度
纤维
计算机科学
工程类
工程物理
复合材料
物理
量子力学
作者
Long Qin,Chang Xu,Qingling Che,Fuzhi Yan,Jie Xue,Xiaofei Wei,Siwei Xiang,Jie Wu,Changyuan Tao,Xiaohong Liu,Chong Yew Lee,Wei Zhang,Xing Fan
标识
DOI:10.1016/j.device.2023.100179
摘要
The performance of small wearable or robotic devices is limited by the energy and power density of batteries. We present a rechargeable aqueous gel-type AgO-Zn battery, with a power density of 17.9 W/cm3 and an energy density of 624 mWh/cm3 at 0.2C and 358 mWh/cm3 at 50C. We designed a multilayered fractal ion-channel structure for the long, fibrous AgO electrode using a twisting method. A prototype headband of 2 cm × 25 cm woven with the fibrous batteries was tested. With a power output of >4 W, the headband battery can extend the operation time of commercial augmented reality glasses from 2 h to over 12 h. Prototype batteries of different shapes using this design were made, including a carrying bag that works as a power bank for a phone and batteries for a small robotic spider and a robotic bird.
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