Laser-structured microarray electrodes for durable stretchable lithium-ion battery

Lu，Yongguang; Ru，Shuai; Li，Hui; Wang，Gang; Xu，Shaolin

2023-02-01

10.1016/j.jcis.2022.11.024

JOURNAL OF COLLOID AND INTERFACE SCIENCE   影响因子和分区

0021-9797

1095-7103

Stretchable lithium-ion batteries (SLIBs) hold great potential as a power source for wearable electronics. A major challenge in the development of SLIBs is fabricating stable and reliable stretchable electrodes. Herein, we develop a novel laser-structured microarray electrodes based SLIBs. An active material film adhered to a planar stretchable current collector is ablated by ultrafast laser into an independent microscale square array, enabling electrodes stretchable. A one-dimensional elastic analytical model is developed to evaluate the stretchability of the microarray electrodes under tensile conditions. The microscale square array adheres to the current collector and keeps intact if the shear stress is less than the adhesion force as well as the tensile stress is less than the tensile strength of the active material. The demonstrated electrodes have a mass active material loading of 10 mg cm and maintain robust electrochemical performance when stretched beyond 500 cycles at 100 % strains. The fabricated SLIBs show a stable capacity of 1.2 mAh cm, and over 70 % of initial capacity can be maintained at 100 % strain.

Elastic analytical model Laser structuring Lithium-ion batteries Microarray electrodes Stretchable batteries

SCI ; EI

英语

第一 ; 通讯

Guangdong Provincial University Science and Technology Program[2020KTSCX119] ; Shenzhen Science and Technology Programs["20200925155508001","GJHZ20190820151801786","JCYJ20210324115608024","KQTD20170810110250357"]

Chemistry

Chemistry, Physical

WOS:000901805900001

ACADEMIC PRESS INC ELSEVIER SCIENCE

20224613116456

Anodes ; Electric current collectors ; Electrochemical electrodes ; Ions ; Lithium-ion batteries ; Shear flow ; Shear stress ; Strain ; Tensile strength

Fluid Flow, General:631.1 ; Electric Equipment:704.2 ; Electron Tubes:714.1 ; Mathematics:921 ; Materials Science:951

CHEMISTRY

2-s2.0-85141747153

Scopus

Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518000,China

Lu，Yongguang,Ru，Shuai,Li，Hui,et al. Laser-structured microarray electrodes for durable stretchable lithium-ion battery[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2023,631:1-7.

Lu，Yongguang,Ru，Shuai,Li，Hui,Wang，Gang,&Xu，Shaolin.(2023).Laser-structured microarray electrodes for durable stretchable lithium-ion battery.JOURNAL OF COLLOID AND INTERFACE SCIENCE,631,1-7.

Lu，Yongguang,et al."Laser-structured microarray electrodes for durable stretchable lithium-ion battery".JOURNAL OF COLLOID AND INTERFACE SCIENCE 631(2023):1-7.