Improving Lithium-Ion Battery Stability with Multipoint Anionic Bridge
Author Information
Author(s): Zheng Tianle, Xu Tonghui, Xiong Jianwei, Wu Mengqi, Xie Weiping, Yu Ying, Xu Zhuijun, Liang Yuxin, Liao Can, Dong Xiaoli, Xia Yongyao, Cheng Ya‐Jun, Müller‐Buschbaum Peter
Primary Institution: Technical University of Munich
Hypothesis
Can the multipoint anionic bridge concept enhance the stability of lithium-ion batteries?
Conclusion
The study demonstrates that using a multipoint anionic bridge significantly improves the high-temperature performance and stability of lithium-ion batteries.
Supporting Evidence
- The multipoint anionic bridge concept utilizes anions with multiple complex sites to enhance battery performance.
- High-temperature performance was demonstrated for lithium-ion batteries using the proposed electrolyte.
- The study showed stable cycling of batteries at elevated temperatures for over 200 cycles.
- Different solvation structures were correlated with improved battery performance.
- Electrolytes with higher concentrations exhibited better conductivity and stability.
- Unique solvation structures were formed at high concentrations, leading to enhanced battery cycling stability.
- Polymer carbonates were formed, contributing to the stability of the solid electrolyte interphase.
Takeaway
This study shows that special anions can help batteries work better at high temperatures by connecting different parts of the battery's liquid.
Methodology
The study utilized in situ techniques and simulations to investigate the electrolyte's performance and solvation structures.
Digital Object Identifier (DOI)
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