Direct Pre-lithiation of Electropolymerized Carbon Nanotubes for Enhanced Cycling Performance of Flexible Li-Ion Micro-Batteries

Polymers

Florence Vacandio¹  Neta Yitzhack²  Yair Ein-Eli²  Thierry Djenizian³  VinsensiaAde Sugiawati³ 

[1] CNRS, Electrochemistry of Materials Research Group, Aix Marseille Université, MADIREL, UMR 7246, F-13397 Marseille CEDEX 20, France;Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel;Mines Saint-Etienne, Center of Microelectronics in Provence, Department of Flexible Electronics, F-13541 Gardanne, France;

关键词: carbon nanotubes;    polymer electrolyte;    li-ion micro-batteries;    flexible anode;    pre-lithiation;   

DOI  :  10.3390/polym12020406

来源: DOAJ

【 摘 要 】

Carbon nanotubes (CNT) are used as anodes for flexible Li-ion micro-batteries. However, one of the major challenges in the growth of flexible micro-batteries with CNT as the anode is their immense capacity loss and a very low initial coulombic efficiency. In this study, we report the use of a facile direct pre-lithiation to suppress high irreversible capacity of the CNT electrodes in the first cycles. Pre-lithiated polymer-coated CNT anodes displayed good rate capabilities, studied up to 30 C and delivered high capacities of 850 mAh g⁻¹ (313 μAh cm⁻²) at 1 C rate over 50 charge-discharge cycles.

【 授权许可】

Unknown