Molecular-Scale Interfacial Model for Predicting Electrode Performance in Rechargeable Batteries
- Title
- Molecular-Scale Interfacial Model for Predicting Electrode Performance in Rechargeable Batteries
- Author
- 선양국
- Keywords
- LITHIUM METAL BATTERIES; CARBONATE-BASED ELECTROLYTES; LI-ION; FLUOROETHYLENE CARBONATE; VINYLENE CARBONATE; GRAPHITE-ELECTRODE; HIGH-VOLTAGE; INTERPHASE; ADDITIVES; CATHODE
- Issue Date
- 2019-07
- Publisher
- AMER CHEMICAL SOC
- Citation
- ACS ENERGY LETTERS, v. 4, NO 7, Page. 1584-1593
- Abstract
- It is commonly believed that the formation of a solid-electrolyte interphase (SEI) is the main reason for improved electrode performance in rechargeable batteries. However, herein we present a new interfacial model that may change the thinking about the role of SEI, which has prevailed over the past 2 decades. We show that the varied desolvation behavior of mobile ions, which depends on the solvation structure determined by multiple factors (e.g., cations, solvent, anions, and additives) is a critical factor for electrode stability besides the SEI. This interfacial model can predict the intercalating species in graphite electrodes (i.e., Li+ (de)intercalation or Li+-solvent co-insertion) in different types of electrolytes (e.g., carbonate-, ether-based electrolyte). The generality of our model is further demonstrated by its ability to interpret the variable lithium plating/stripping in different electrolytes. Our model can predict electrode performance through the proposed cation-solvent interactions and desolvation behaviors and then help develop new types of electrolytes for mobile (ion) batteries.
- URI
- https://pubs.acs.org/doi/10.1021/acsenergylett.9b00822https://repository.hanyang.ac.kr/handle/20.500.11754/151607
- ISSN
- 2380-8195
- DOI
- 10.1021/acsenergylett.9b00822
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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