Research question
How does the atomic structure of a copper current collector determine whether lithium grows laterally or forms dendrites?
Key result
A very low surface-migration barrier on single-crystal Cu(111) promoted lateral lithium growth. Cells paired with high-loading NCM811 cathodes retained 80% capacity for 120 cycles, compared with 29 cycles using polycrystalline copper.
Research contribution
Dong Yeon Kim, Sang-Wook Park and Dong-Hwa Seo performed DFT and molecular-dynamics simulations. Their calculations connected copper surface structure with lithium motion and the experimentally observed growth behavior.
Impact Factor 30.5 · Top 0.8%
- Best-ranked category
- Engineering, Chemical
- JCR rank
- 2 / 183 journals · Top 0.8%
Citation details & BibTeX
@article{pub1022024,
title = {{Horizontal lithium growth driven by surface dynamics on single crystal Cu(111) foil}},
author = {Kim, Min-Ho and Kim, Dong Yeon and Li, Yunqing and Kim, Juyoung and Kim, Min Hyeok and Seo, Jeongwoo and Cunning, Benjamin V. and Kim, Taewon and Park, Sang-Wook and Ruoff, Rodney S. and Seo, Dong-Hwa and Jin, Sunghwan and Lee, Hyun-Wook},
journal = {Energy & Environmental Science},
year = {2024},
volume = {17},
number = {18},
pages = {6521--6532},
doi = {10.1039/d4ee01766h},
url = {https://doi.org/10.1039/d4ee01766h}
}