Highly Conductive and Stable Naphthalenediimide‑Based Organic Salt Cathode for Robust Lithium‑Ion Batteries (IMAGE)
Caption
- A naphthalenediimide-based lithium salt (NDI-OLi) featuring a stable π-conjugated structure and high aromaticity is proposed as a cathode, which facilitates relatively high electronic conductivity and rapid electron transfer.
- Experimental and theoretical investigations reveal that the stable delocalized electronic geometry and fast reaction kinetics enable sufficient coupling between carbonyl sites and lithium ions, ensuring excellent energy storage performance.
- The NDI-OLi electrode demonstrates superior rate capability and long-term cyclability (85% capacity retention after 5000 cycles), outperforming previously reported organic lithium salt cathodes.
Credit
Xiangyu Su, Zixuan Shan, Xuan Peng, Jianyi Chu, Zhihao Jia, Yanan Kou, Min Jiang*, Yuan Chen*.
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License
CC BY-NC-ND