Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 620, Issue -, Pages 119-126Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2022.04.009
Keywords
Extended layer spacing; VS2; ZIBs; MLIBs; Theoretical calculation
Categories
Funding
- Talent Introduction Start-Up Foundation of Guangxi Minzu University [2021KJQD08]
- Natural Science Foundation of China [51902280]
- Natural Science Foundation of Henan [202300410329]
- Natural Science Foundation of Henan Province [202300410341]
- Foundation of Henan Educational Committee [22B150019]
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An effective inter-layer scaling strategy using a simple hydrothermal method is proposed to improve the electrochemical performance of zinc-ion batteries (ZIBs) and magnesium/lithium hybrid ion batteries (MLIBs). The study also establishes a diffusion mechanism and theoretical model.
Currently, the development of polyvalent ions battery systems are still restricted by lacking suitable cathode materials with high energy density and long cycle life attributing to sluggish kinetic mechanism and of polyvalent ions. Herein, an effective inter-layer scaling strategy is proposed by using a simple hydrothermal method. The super layer spacing VS2 (~1 nm) cathode dramatically improves electrochemical performance of zinc-ion batteries (ZIBs) and magnesium/lithium hybrid ion batteries (MLIBs). The specific discharge capacities of ZIBs and MLIBs are 450.7 and 488.8 mA h g(-1) at current density of 0.1 A g(-1) which are much higher than the same type of battery systems. Finally, the diffusion mechanism and the corresponding theoretical model is established by adopting first principles. In brief, the work provides an effective strategy for the large scale application of multivalent and hybrid batteries systems. (C)& nbsp;2022 Elsevier Inc. All rights reserved.
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