We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Interface‐Targeting Individually Functionalized Ionic Additive to Construct Stable Interphase on Selective Electrode Surface for Practical Lithium‐Ion Pouch Cells.
- Authors
Kim, Wontak; Kim, Tae Hyeon; Yu, Jisang; Kim, Young‐Jun; Kim, Ki Jae; Kim, Hyun‐seung
- Abstract
Individually functionalized cation‐ and anion‐based ionic additives are designed to mitigate the interfacial side reaction occurring on both the positive and negative electrode surfaces. By applying 1‐phenyl‐1H‐imidazole‐3‐ium trifluoromethanesulfonate as a surface‐targeting electrolyte additive, the reciprocal failure from multiple electrolyte addition applications is theoretically prevented. Selective interface modification is performed using ionic additives by the migration of cations and anions to the negative and positive electrode surfaces, respectively. A drastic improvement in cycleability compared with that by a general carbonate electrolyte is achieved because the reinforcement of both the graphite and LiNi0.8Co0.1Mn0.1O2 electrode surface is possible by ionic additives. Moreover, a further improvement in the cycle performance compared with that by the typical solid electrolyte interphase‐forming additives, such as vinylene carbonate and fluoroethylene carbonate, is demonstrated by the ionic additive.
- Subjects
FLUOROETHYLENE; NEGATIVE electrode; INTERFACIAL reactions; ELECTRODES; SOLID electrolytes; IONIC conductivity; ADDITIVES
- Publication
Advanced Functional Materials, 2023, Vol 33, Issue 49, p1
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.202306068