多阴离子高熵电解质助力锂离子电池实现更高的电压耐受性和更宽的温度适用性。
Multi-anion high-entropy electrolytes enabling lithium-ion batteries with enhanced voltage tolerance and wide-temperature operability.
作者信息
Zhao Jia-Zhen, Yu Fu-Da, Wang Hai-Nan, Wu Ji-Huai, Lan Zhang, Xie Yi-Ming, Que Lan-Fang
机构信息
Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Institute of Materials Physical Chemistry, Huaqiao University Xiamen 361021 China
出版信息
RSC Adv. 2025 Jul 15;15(31):24942-24946. doi: 10.1039/d5ra02919h.
To achieve high-voltage stability and low-temperature performance simultaneously in lithium-ion batteries, a high-entropy electrolyte with multi anions is proposed. The multi anions not only lows the solvation-free energy, but also contributes to the formation of inorganic-rich CEI layer. The optimized electrolyte enables stable cycling of NCM523 at both 25 °C and -20 °C.
为了在锂离子电池中同时实现高电压稳定性和低温性能，提出了一种含多阴离子的高熵电解质。多阴离子不仅降低了去溶剂化自由能，还有助于形成富含无机成分的固体电解质界面（CEI）层。优化后的电解质能够使NCM523在25℃和-20℃下都能稳定循环。
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