Surface engineering donor and acceptor sites with enhanced charge transport for low-overpotential lithium–oxygen batteries

2020 ◽  
Vol 25 ◽  
pp. 52-61 ◽  
Author(s):  
Shu-Mao Xu ◽  
Xiao Liang ◽  
Xin Liu ◽  
Wen-Long Bai ◽  
Yu-Si Liu ◽  
...  
Keyword(s):  
Charge Transport ◽  
Surface Engineering ◽  
Donor And Acceptor ◽  
Low Overpotential ◽  
Lithium Oxygen Batteries

scholarly journals Multistaged discharge constructing heterostructure with enhanced solid-solution behavior for long-life lithium-oxygen batteries

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Shu-Mao Xu ◽  
Xiao Liang ◽  
Xue-Yan Wu ◽  
Shen-Long Zhao ◽  
Jun Chen ◽  
...  
Keyword(s):  
Charge Transport ◽  
Cathode Surface ◽  
Critical Role ◽  
Cathode Catalysts ◽  
Lithium Peroxide ◽  
Lithium Diffusion ◽  
Large Contact Area ◽  
Main Factors ◽  
Lithium Oxygen Batteries ◽  
Cycling Life

AbstractInferior charge transport in insulating and bulk discharge products is one of the main factors resulting in poor cycling stability of lithium–oxygen batteries with high overpotential and large capacity decay. Here we report a two-step oxygen reduction approach by pre-depositing a potassium carbonate layer on the cathode surface in a potassium–oxygen battery to direct the growth of defective film-like discharge products in the successive cycling of lithium–oxygen batteries. The formation of defective film with improved charge transport and large contact area with a catalyst plays a critical role in the facile decomposition of discharge products and the sustained stability of the battery. Multistaged discharge constructing lithium peroxide-based heterostructure with band discontinuities and a relatively low lithium diffusion barrier may be responsible for the growth of defective film-like discharge products. This strategy offers a promising route for future development of cathode catalysts that can be used to extend the cycling life of lithium–oxygen batteries.

Achieving Low Overpotential Lithium–Oxygen Batteries by Exploiting a New Electrolyte Based on N,N′-Dimethylpropyleneurea

2017 ◽  
Vol 2 (2) ◽  
pp. 313-318 ◽  
Author(s):  
Ruliang Liu ◽  
Yu Lei ◽  
Wei Yu ◽  
Haifan Wang ◽  
Lei Qin ◽  
...  
Keyword(s):  
Low Overpotential ◽  
Lithium Oxygen Batteries

A DFT approach to the charge transport related properties in columnar stacked π-conjugated N-heterocycle cores including electron donor and acceptor units

2015 ◽  
Vol 17 (1) ◽  
pp. 605-618 ◽  
Author(s):  
Amparo Navarro ◽  
M. Paz Fernández-Liencres ◽  
Gregorio García ◽  
José M. Granadino-Roldán ◽  
Manuel Fernández-Gómez
Keyword(s):  
Charge Transport ◽  
Electron Donor ◽  
Theoretical Design ◽  
Donor And Acceptor ◽  
Donor Acceptor ◽  
Electron Donor And Acceptor

Theoretical design of new, ambipolar DLC donor–acceptor systems based on tris[1,2,4]triazolo[1,3,5]triazine cores.

scholarly journals Effective interplay of donor and acceptor groups for tuning optoelectronic properties in oligothiophene–naphthalimide assemblies

2020 ◽  
Vol 8 (43) ◽  
pp. 15277-15289
Author(s):  
Matías J. Alonso-Navarro ◽  
Alexandra Harbuzaru ◽  
Paula de Echegaray ◽  
Iratxe Arrechea-Marcos ◽  
Albert Harillo-Baños ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Mechanism ◽  
Molecular Orbitals ◽  
Optoelectronic Properties ◽  
Frontier Molecular Orbitals ◽  
Charge Transport Mechanism ◽  
And Topology ◽  
Donor And Acceptor

In this work, a series of naphthalimide fused thienopyrazine derivatives was designed in order to efficiently modulate both the energy and topology of the frontier molecular orbitals involved in the charge transport mechanism.

Benzothiadiazole-Dithienopyrrole Donor–Acceptor–Donor and Acceptor–Donor–Acceptor Triads: Synthesis and Optical, Electrochemical, and Charge-Transport Properties

2011 ◽  
Vol 115 (46) ◽  
pp. 23149-23163 ◽  
Author(s):  
Lauren E. Polander ◽  
Laxman Pandey ◽  
Stephen Barlow ◽  
Shree Prakash Tiwari ◽  
Chad Risko ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Donor And Acceptor ◽  
Donor Acceptor

A solution-processable bipolar diketopyrrolopyrrole molecule used as both electron donor and acceptor for efficient organic solar cells

2015 ◽  
Vol 3 (5) ◽  
pp. 1902-1905 ◽  
Author(s):  
Hangqi Shi ◽  
Weifei Fu ◽  
Minmin Shi ◽  
Jun Ling ◽  
Hongzheng Chen
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Transport Properties ◽  
Electron Donor ◽  
Organic Solar Cells ◽  
Energy Levels ◽  
Donor And Acceptor ◽  
Solution Processable ◽  
Electron Donor And Acceptor ◽  
Bipolar Charge

A DPP molecule has appropriate energy levels and bipolar charge-transport properties for both donor and acceptor in OSCs.

Sign in / Sign up

Export Citation Format

Share Document