@article{Li2024, 
author = {Shaowen Li and Ting Zhao and Helin Wang and Zhiqiao Wang and Min Zhang and Ahu Shao and Jiacheng Liu and Zhaohui Wang and Yue Ma},
title = {High-areal-capacity/power lithium metal microbattery configuration based on the mechanically flexible, ultra-lightweight, nanocellulose framework},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {9},
pages = {8155-8162},
keywords = {nanocellulose, microbattery, mechanical flexible, ultra-lightweight, high-areal-capacity},
url = {https://www.sciopen.com/article/10.1007/s12274-024-6856-2},
doi = {10.1007/s12274-024-6856-2},
abstract = {The ubiquitous implementation of integrated microelectronics requires the on-chip power sources featured with the lightweight configuration design, high areal-capacity-loadings as well as facile reaction kinetics that beyond the current available microbattery prototypes. Herein, this study constructs a mechanically flexible, nanocellulose fiber (NCF) reinforced microbattery configuration, which consists of metal–organic frameworks (ZIF-8) modified NCF as the separator (MOF@NCF), the carbonized MOF@NCF as the metallic deposition substrate (c-MOF@NCF) as well as gradient-structured LiFePO4 particles infiltrated in the NCF matrix (LFP@NCF) as the cathode. The film-stacked, integrated NCF-based microbattery prototype not only achieves the facile reaction kinetics with homogenized, dendrite-free Li metal deposition at high-capacity-loadings (2 mAh·cm−2), but also eliminates the necessary use of metallic current collector to maximize the electroactive mass ratio, which therefore enables the high energy density of 6.8 mWh·cm−2 at the power output of 1.36 mW·cm−2 as well as the robust cyclability upon various geometric flexing states. This study presents a quantum leap towards the facile reaction kinetics and multi-scale interfacial stability for the flexible microbattery construction that based on the sustainable utilization of bio-scaffolds.}
}