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Interface Engineering of NCMA Cathodes with LATP Coatings for High-Performance Solid-State Lithium Batteries
Shih-Ping Cho1, Muhammad Usman Hameed2, Chien-Te Hsieh3,4
1Department of Chemical Engineering, R&D Center for Membrane Technology, Chung Yuan Christian University, 200 Chung Pei Road, Chungli District, Taoyuan City 32023, Taiwan.
Nanomaterials (Basel, Switzerland)
|July 25, 2025
Summary
Lithium aluminum titanium phosphate (LATP) coatings improve solid-state lithium battery cathodes. This enhances stability and performance for next-generation energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- High-performance solid-state lithium batteries (SSBs) are crucial for advanced energy storage.
- Interfacial instability between cathodes and solid electrolytes hinders SSB performance.
Purpose of the Study:
- To investigate the use of lithium aluminum titanium phosphate (LATP) coatings on NCMA83 cathodes.
- To enhance the electrochemical performance and interface stability of SSBs.
Main Methods:
- Coating NCMA83 cathodes with LATP.
- Structural and morphological analysis (e.g., XRD, SEM).
- Electrochemical testing (cycling stability, impedance spectroscopy).
Main Results:
- LATP coatings significantly reduce interfacial reactivity with solid electrolytes like LPSC.
- LATP coatings maintain NCMA83 crystallinity and optimize lattice stress.
- LATP-modified cathodes (83L5) show improved capacity retention (65 mAh/g after 50 cycles) and reduced charge transfer resistance (~200 Ω) compared to unmodified cathodes (83L0).
Conclusions:
- LATP is a promising surface engineering strategy for high-capacity SSBs.
- LATP coatings mitigate degradation, enhance ionic conductivity, and extend battery lifespan.
- This approach advances the development of stable and high-performance solid-state batteries.
