Details

Autor(en) / Beteiligte

• Guo, Kanglong
• Qi, Shihan
• Wang, Huaping
• Huang, Junda
• Wu, Mingguang
• Yang, Yulu
• Li, Xiu
• Ren, Yurong
• Ma, Jianmin

Titel

High‐Voltage Electrolyte Chemistry for Lithium Batteries

Ist Teil von

• Small science, 2022-05, Vol.2 (5), p.n/a

Ort / Verlag

Weinheim: John Wiley & Sons, Inc

Erscheinungsjahr

2022

Quelle

Wiley Online Library Journals

Beschreibungen/Notizen

• Lithium batteries are currently the most popular and promising energy storage system, but the current lithium battery technology can no longer meet people's demand for high energy density devices. Increasing the charge cutoff voltage of a lithium battery can greatly increase its energy density. However, as the voltage increases, a series of unfavorable factors emerges in the system, causing the rapid failure of lithium batteries. To overcome these problems and extend the life of high‐voltage lithium batteries, electrolyte modification strategies have been widely adopted. Under this content, this review first introduces the degradation mechanism of lithium batteries under high cutoff voltage, and then presents an overview of the recent progress in the modification of high‐voltage lithium batteries using electrolyte modification strategies. Finally, the future direction of high‐voltage lithium battery electrolytes is also proposed. High‐voltage lithium batteries have some challenges, e.g., electrolyte decomposition, parasitic oxidation reaction, transition metal dissolution and surface cracks and phase changes in regards with cathodes. In this review, we will overview the recent progress in the modification of high‐voltage lithium batteries using electrolyte modification strategies, and propose future research directions.