|
| Modification strategy of surface interface problems of cathode material for lithium-ion batteries |
|
Received:December 03, 2024
Revised:December 05, 2024
Accepted:December 05, 2024
Published Online:January 21, 2025
|
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:lithium-ion batteries; cathode material; surface; interface; research progress; modification strategy |
| Author | Institution |
| LING SHIGANG |
Beijing Easpring Material Technology Co.Ltd |
| LIU Yafei |
Beijing Easpring Material Technology Co.Ltd |
| CHEN Yanbin |
Beijing Easpring Material Technology Co.Ltd |
|
| Hits: 749 |
| Download times: 227 |
| Abstract: |
| Increasing the working voltage of the cathode material or using high specific capacity electrode materials is the most effective way to improve the energy density of lithium-ion batteries (LIBs). The increase in energy density means that a great amount proportion of active lithium is extracted from the lattice of the cathode material, it will induce a series of cathode/electrolyte interface problems such as oxygen evolution, transition metal dissolution, interface side reaction, cation cross-layer migration, surface structure reconstruction, etc., which will lead to the failure of cathode materials and the deterioration of battery performance. In this paper, the structure and surface interface failure modes of three conventional types of cathode materials are summarized, including layered LiMeO2, spinel-type LiMe2O4 and olivine-type LiMePO4. The latest research progresses on surface interface of cathode materials are reviewed, and the mechanism of coating, surface doping, gradient structure,、particle morphology control and electrolyte additives on surface interface modification are discussed. The key mutual problems and resolution strategies of surface interface of cathode materials in LIBs are summarized. |
| Close |
|
|
|