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基本信息

高国新

性别:男

职称:教授

学历:博士研究生毕业

学位:博士

所在单位:化学学院

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办公地点:西安交通大学兴庆校区化学楼218房间,中国西部创新港校区19号楼

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学科: 材料科学与工程 、 化学

招生学科 化学 、 化学工程与技术 、 材料科学与工程

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论文成果

Electrolyte additive engineering to construct stable interphases with high ionic conductivity for high-temperature and high-voltage lithium metal batteries

发布时间:2026-08-29

影响因子:
8.1
DOI码:
10.1039/d6sc04807b
论文名称:
Electrolyte additive engineering to construct stable interphases with high ionic conductivity for high-temperature and high-voltage lithium metal batteries
发表刊物:
Chemical Science
摘要:
Integrating high-voltage nickel-rich cathodes with lithium metal anodes while elevating charging cut-off voltage is a practical strategy for constructing high-energy-density battery systems. Nevertheless, severe structural degradation of cathodes and aggressive electrode/electrolyte interfacial reactions hinder their application. Worse still, these issues are exacerbated under high-voltage and high-temperature operating conditions. Herein, we propose a bifunctional electrolyte with 4-trifluoromethylbenzeneboronic acid neopentyl glycol ester (TFMB) as an additive to tailor robust interphases, which alleviates cathode structural damage and suppresses lithium dendrite growth. The electron-deficient boron in TFMB coordinates with anions, thereby enhancing the thermal stability of electrolytes and facilitating the involvement of anions in the formation of interphases. Meanwhile, fluorinated functional groups contribute to the formation of stable, inorganic-rich interphases and further boost the high-voltage resistance of batteries. Therefore, Li & Vert;Ni0.8Co0.1Mn0.1O2 (NCM811) cells maintain a superior reversible capacity retention of 75.25% after 300 cycles at 4.5 V and achieve outstanding cycling stability with 80% capacity retention over 120 cycles at 4.7 V. Impressively, Li & Vert;NCM811 cells demonstrate favorable capacity retention even at 50 degrees C, validating their application prospects. Furthermore, its good compatibility with LiFePO4 cathodes meets the demands of different energy scales. This work provides meaningful insights for designing high-voltage and high-temperature electrolytes for lithium metal batteries.
合写作者:
张文哲,吴晓莎,余芮,王坤
第一作者:
李雅楠
论文类型:
期刊论文
通讯作者:
郗凯,丁书江,高国新
论文编号:
WOS:001828052400001
学科门类:
工学
一级学科:
材料科学与工程
文献类型:
J
ISSN号:
2041-6520
是否译文:
发表时间:
2026-07-16
收录刊物:
SCI
发布期刊链接:
https://rscj.silverchair-cdn.com/rscj/content_public/journal/sc/pap/10.1039_d6sc04807b/1/d6sc04807b.pdf?Expires=1791013724&Signature=RiES8LGLTqZ5dh6gMQSGFhHA2blCSSw3IczkxNfE0UGxd0PVEu9vA~o2YivG0cycDHd