Artificial electrode interfaces enable stable operation of freestanding anodes for high-performance flexible lithium ion batteries

IMR OpenIR

	Artificial electrode interfaces enable stable operation of freestanding anodes for high-performance flexible lithium ion batteries
	Liu, Lixiang; Zhu, Minshen; Huang, Shaozhuan; Lu, Xueyi; Zhang, Long; Li, Yang; Wang, Sitao; Liu, Lifeng; Weng, Qunhong; Schmidt, Oliver G.
	2019-06-21
Source Publication	JOURNAL OF MATERIALS CHEMISTRY A
ISSN	2050-7488
Volume	7 Issue:23 Pages:14097-14107
Abstract	High-performance flexible lithium-ion batteries are leading candidates for power sources of wearable and foldable electronics. As a result, it is vital to design freestanding electrodes with high capacity and stability. Herein, we develop a novel strategy to significantly improve the performance of freestanding anodes by artificially introducing an ultrathin but robust interface based on polyacrylamide/gelatin gel with excellent mechanical durability and ionic conductivity. The artificial interface suppresses the formation of a thick solid electrolyte interface, facilitates charge transfer processes and strengthens the integrity of the electrode. Benefitting from these merits, our freestanding anode made of the nano/microstructured NiFe2O4-CNTs composite achieves a high capacity of 612 mA h g(-1) based on the total mass of the electrode. The high-performance freestanding anode further enables a stable output capacity of 140 mA h g(-1) over 1000 charge/discharge cycles for a full battery using commercial LiMn2O4 as the cathode material. Meanwhile, the excellent rate performance of the freestanding anode guarantees high energy output up to 255 W h kg(-1) at a high power density of 12 000 W kg(-1) for the full battery. Moreover, the intrinsic flexibility of the freestanding electrodes enables the fabrication of a flexible lithium-ion battery, which is highly stable even under harsh mechanical deformation. This work provides a new perspective to fabricate next-generation flexible batteries with high energy density and excellent stability, further advancing the development of foldable and wearable electronics toward practical applications.
Indexed By	SCI
Language	英语
WOS ID	WOS:000472566400024
Publisher	ROYAL SOC CHEMISTRY
Citation statistics	Cited Times:3[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/80990
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Liu, Lixiang,Zhu, Minshen,Huang, Shaozhuan,et al. Artificial electrode interfaces enable stable operation of freestanding anodes for high-performance flexible lithium ion batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(23):14097-14107.
APA	Liu, Lixiang.,Zhu, Minshen.,Huang, Shaozhuan.,Lu, Xueyi.,Zhang, Long.,...&Schmidt, Oliver G..(2019).Artificial electrode interfaces enable stable operation of freestanding anodes for high-performance flexible lithium ion batteries.JOURNAL OF MATERIALS CHEMISTRY A,7(23),14097-14107.
MLA	Liu, Lixiang,et al."Artificial electrode interfaces enable stable operation of freestanding anodes for high-performance flexible lithium ion batteries".JOURNAL OF MATERIALS CHEMISTRY A 7.23(2019):14097-14107.

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