Electrosynthesis of Vertically Aligned Zinc Oxide Nanoflakes on 3D Porous Cu Foam Enables Dendrite-Free Li-Metal Anode

Luo, Geng1; Yin, Xiaoguang2; Liu, Dongqing3; Hussain, Arshad1; Liu, Fude1; Cai, Xingke1

2022-07-01

10.1021/acsami.2c09287

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

Three dimensional (3D) hosts have been recog-nized as effective current collectors for Li metal anodes because of their physical suppression of the lithium dendrites growth. A lithiophilic surface layer on them could increase the Li metal nucleation sites, further regulating the genuine plating of Li metal. The current strategies to construct this lithiophilic layer on 3D structure is complex and not suitable for the scalable fabrication of Li metal anode. In this work, we developed a facile method to grow vertically aligned ZnO nanoflakes on the surface of 3D Cu foam through an electrochemical synthetic process, which physically suppressed the Li dendrites growth due to the unique structure during the Li plating/stripping process. Moreover, these lithiophilic flakes effectively increase the specific surface area of the anode and Li metal nucleation sites number, which reduces the local current densities, leading to the formation of a robust SEI and further suppressing the Li dendrites growth. Consequently, the performances of the symmetric Li plated Cu foam/Li cell and the Li plated Cu foam/LiFePO4 full cell have been greatly enhanced after the growth of vertically aligned ZnO nanoflakes on the Cu foam surface, including capacity, cycling stability, overpotential, and rate capability.

lithium metal anode dendrite-free Cu-Zn solid solution ZnO nanoflakes Cu foam

SCI ; EI

英语

其他

Natural Science Foundation of China["52003163","22105129"] ; Guangdong Basic and Applied Basic Research Foundation["2022A1515010670","2022A1515011048"] ; Science and Technology Innovation Commission of Shenzhen["KQTD20170810105439418","20200812112006001"] ; NTUT-SZU Joint Research Program["2022005","2022015"]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000830051300001

AMER CHEMICAL SOC

20223312565440

Anodes ; Binary alloys ; Copper ; II-VI semiconductors ; Lithium ; Zinc oxide

Lithium and Alloys:542.4 ; Copper:544.1 ; Alkali Metals:549.1 ; Semiconducting Materials:712.1 ; Electron Tubes:714.1 ; Inorganic Compounds:804.2 ; Crystal Growth:933.1.2

Web of Science

1.Shenzhen Univ, Inst Adv Study, Shenzhen 518060, Guangdong, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518060, Guangdong, Peoples R China
3.Shenzhen Univ, Coll Mechatron & Control Engn, Shenzhen 518060, Guangdong, Peoples R China

Luo, Geng,Yin, Xiaoguang,Liu, Dongqing,et al. Electrosynthesis of Vertically Aligned Zinc Oxide Nanoflakes on 3D Porous Cu Foam Enables Dendrite-Free Li-Metal Anode[J]. ACS Applied Materials & Interfaces,2022.

Luo, Geng,Yin, Xiaoguang,Liu, Dongqing,Hussain, Arshad,Liu, Fude,&Cai, Xingke.(2022).Electrosynthesis of Vertically Aligned Zinc Oxide Nanoflakes on 3D Porous Cu Foam Enables Dendrite-Free Li-Metal Anode.ACS Applied Materials & Interfaces.

Luo, Geng,et al."Electrosynthesis of Vertically Aligned Zinc Oxide Nanoflakes on 3D Porous Cu Foam Enables Dendrite-Free Li-Metal Anode".ACS Applied Materials & Interfaces (2022).