In-situ positive electrode-electrolyte interphase construction enables stable Ah-level Zn-MnO2 batteries
Central South University · Massachusetts Institute of Technology · +1 more institution
Abstract
Engineering the formulation of an Mn-based positive electrode is a viable strategy for producing an efficient aqueous zinc-ion battery. However, Mn dissolution and the byproducts result in capacity fading, thus limiting its electrochemical performances. To solve the undesirable issues, the concept of in-situ forming the positive electrode/electrolyte interface on the commercial MnO2 is designed, with the help of introducing the Dioctyl Phthalate into the ZS-based electrolyte (2 M ZnSO4 + 0.2 M MnSO4), designated as ZS-DOP electrolyte. An advanced three-dimensional chemical and imaging analysis on a model material reveals the dynamic formation of positive electrode/electrolyte interface. The formed organic…
Citation impact
- FWCI
- 25.68
- Percentile
- 100%
- References
- 72
Authors
7Topics & keywords
- Interphase
- Electrolyte
- Electrode
- In situ
- Materials science
- Chemical engineering
- Nanotechnology
- Chemistry