Inhibition of Discharge Side Reactions by Promoting Solution-Mediated Oxygen Reduction Reaction with Stable Quinone in Li-O-2 Batteries

Liu, Xiao1,2,3,4; Zhang, Peng5,6; Liu, Liangliang1,2,3,4; Feng, Jianwen5,7; He, Xiaofeng1,2,3,4; Song, Xiaosheng1,2,3,4; Han, Qing1,2,3,4; Wang, Hua1,2,3,4; Peng, Zhangquan5; Zhao, Yong1,2,3,4

2020-03-04

10.1021/acsami.0c01105

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

Aprotic lithium-oxygen (Li-O-2) batteries with an ultrahigh theoretical energy density have great potential in rechargeable power supply, while their application still faces several challenges, especially poor cycle stability. To solve the problems, one of the effective strategies is to inhibit the generation of the LiO2 intermediate produced via a surface-mediated oxygen reduction reaction (ORR) pathway, which is an important species inducing byproduct generation and low cell cyclic stability. Herein, a series of quinones and solid materials serve as the solution-mediated and surface-mediated ORR catalysts, and it was found that the generation of LiO2 and byproducts from solid catalysts was inhibited by quinones. Among the studied quinones, benzo[1,2-b:4,5-b']dithiophene-4,8-dione, a quinone molecule with the advantage of a highly symmetrical planar and conjugated structure and without alpha-H, exhibits high redox potential, diffusion coefficient, and electrochemical stability, and consequently the best ORR activities and the capability to inhibit byproduct generation. It indicated that the increase of the solution-mediated ORR pathway plays an important role in restraining the discharging side reaction, substantially improving cell cycle stability and capacity. This study provides the theoretical and experimental basis for better understanding the ORR process of Li-O-2 batteries.

lithium-oxygen batteries quinone redox mediator oxygen reduction reaction Li2O2 solution mediated

EI ; SCI

英语

其他

Program for Science & Technology Innovation Talents in Universities of Henan Province[18HASTIT004]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000518702300055

AMER CHEMICAL SOC

20201008255430

Byproducts ; Catalysts ; Electrolytic reduction ; Lithium compounds ; Lithium-air batteries ; Organic polymers ; Oxygen supply ; Quinone ; Reaction intermediates ; Redox reactions ; Stability ; Surface reactions

Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Organic Polymers:815.1.1

EV Compendex

1.Henan Univ, Key Lab Special Funct Mat, Minist Educ, Kaifeng 475004, Henan, Peoples R China
2.Henan Univ, Natl & Local Joint Engn Res Ctr High Efficiency D, Kaifeng 475004, Henan, Peoples R China
3.Henan Univ, Sch Mat Sci & Engn, Kaifeng 475004, Henan, Peoples R China
4.Henan Univ, Collaborat Innovat Ctr Nano Funct Mat & Applicat, Kaifeng 475004, Henan, Peoples R China
5.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China
6.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
7.South China Univ Technol, Res Inst Mat Sci, Guangzhou 510640, Peoples R China

Liu, Xiao,Zhang, Peng,Liu, Liangliang,et al. Inhibition of Discharge Side Reactions by Promoting Solution-Mediated Oxygen Reduction Reaction with Stable Quinone in Li-O-2 Batteries[J]. ACS Applied Materials & Interfaces,2020,12(9):10607-10615.

Liu, Xiao.,Zhang, Peng.,Liu, Liangliang.,Feng, Jianwen.,He, Xiaofeng.,...&Zhao, Yong.(2020).Inhibition of Discharge Side Reactions by Promoting Solution-Mediated Oxygen Reduction Reaction with Stable Quinone in Li-O-2 Batteries.ACS Applied Materials & Interfaces,12(9),10607-10615.

Liu, Xiao,et al."Inhibition of Discharge Side Reactions by Promoting Solution-Mediated Oxygen Reduction Reaction with Stable Quinone in Li-O-2 Batteries".ACS Applied Materials & Interfaces 12.9(2020):10607-10615.