High-Voltage and High-Safety Practical Lithium Batteries with Ethylene Carbonate-Free Electrolyte

Yu Wu; Dongsheng Ren; Xiang Liu; Gui Liang Xu; Xuning Feng; Yuejiu Zheng; Yalun Li; Min Yang; Yong Peng; Xuebing Han; Li Wang; Zonghai Chen; Yang Ren; Languang Lu; Xiangming He; Jitao Chen; Khalil Amine; Minggao Ouyang

doi:10.1002/aenm.202102299

High-Voltage and High-Safety Practical Lithium Batteries with Ethylene Carbonate-Free Electrolyte

Yu Wu, Dongsheng Ren, Xiang Liu, Gui Liang Xu, Xuning Feng^*, Yuejiu Zheng, Yalun Li, Min Yang, Yong Peng, Xuebing Han, Li Wang^*, Zonghai Chen, Yang Ren, Languang Lu, Xiangming He, Jitao Chen, Khalil Amine^*, Minggao Ouyang^*

^*此作品的通讯作者

科研成果: 期刊稿件 › 文章 › 同行评审

83 引用（Scopus）

摘要

Serious safety issues are impeding the widespread adoption of high-energy lithium-ion batteries for transportation electrification and large-scale grid storage. Herein, a triple-salt ethylene carbonate (EC) free electrolyte for high-safety and high-energy pouch-type LiNi_0.8Mn_0.1Co_0.1O₂|graphite (NMC811|Gr) cells is reported. This EC-free electrolyte can effectively stabilize the NMC811 surface under high potential (up to 4.5 V), as well as generate a stable interphase to achieve a superior compatibility with the Gr anode. The electrolyte strategy enables significantly enhanced intrinsic safety (trigger temperature of thermal runaway (TR) increased by 67.0 °C), excellent electrochemical properties (4.2V, ≈100% after 200 cycles), and superior high voltage stability (4.5 V, 82.1% after 200 cycles). The work opens up a new avenue for developing novel electrolyte systems to build safer high-energy batteries for practical applications.

源语言	英语
文章编号	2102299
期刊	Advanced Energy Materials
卷	11
期	47
DOI	https://doi.org/10.1002/aenm.202102299
出版状态	已出版 - 16 12月 2021
已对外发布	是

联合国可持续发展目标

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Wu, Y., Ren, D., Liu, X., Xu, G. L., Feng, X., Zheng, Y., Li, Y., Yang, M., Peng, Y., Han, X., Wang, L., Chen, Z., Ren, Y., Lu, L., He, X., Chen, J., Amine, K., & Ouyang, M. (2021). High-Voltage and High-Safety Practical Lithium Batteries with Ethylene Carbonate-Free Electrolyte. Advanced Energy Materials, 11(47), 文章 2102299. https://doi.org/10.1002/aenm.202102299

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title = "High-Voltage and High-Safety Practical Lithium Batteries with Ethylene Carbonate-Free Electrolyte",

abstract = "Serious safety issues are impeding the widespread adoption of high-energy lithium-ion batteries for transportation electrification and large-scale grid storage. Herein, a triple-salt ethylene carbonate (EC) free electrolyte for high-safety and high-energy pouch-type LiNi0.8Mn0.1Co0.1O2|graphite (NMC811|Gr) cells is reported. This EC-free electrolyte can effectively stabilize the NMC811 surface under high potential (up to 4.5 V), as well as generate a stable interphase to achieve a superior compatibility with the Gr anode. The electrolyte strategy enables significantly enhanced intrinsic safety (trigger temperature of thermal runaway (TR) increased by 67.0 °C), excellent electrochemical properties (4.2V, ≈100% after 200 cycles), and superior high voltage stability (4.5 V, 82.1% after 200 cycles). The work opens up a new avenue for developing novel electrolyte systems to build safer high-energy batteries for practical applications.",

keywords = "EC-free electrolytes, high safety, high voltage, practical lithium batteries",

author = "Yu Wu and Dongsheng Ren and Xiang Liu and Xu, {Gui Liang} and Xuning Feng and Yuejiu Zheng and Yalun Li and Min Yang and Yong Peng and Xuebing Han and Li Wang and Zonghai Chen and Yang Ren and Languang Lu and Xiangming He and Jitao Chen and Khalil Amine and Minggao Ouyang",

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doi = "10.1002/aenm.202102299",

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AU - Wu, Yu

AU - Ren, Dongsheng

AU - Liu, Xiang

AU - Xu, Gui Liang

AU - Feng, Xuning

AU - Zheng, Yuejiu

AU - Li, Yalun

AU - Yang, Min

AU - Peng, Yong

AU - Han, Xuebing

AU - Wang, Li

AU - Chen, Zonghai

AU - Ren, Yang

AU - Lu, Languang

AU - He, Xiangming

AU - Chen, Jitao

AU - Amine, Khalil

AU - Ouyang, Minggao

PY - 2021/12/16

Y1 - 2021/12/16

N2 - Serious safety issues are impeding the widespread adoption of high-energy lithium-ion batteries for transportation electrification and large-scale grid storage. Herein, a triple-salt ethylene carbonate (EC) free electrolyte for high-safety and high-energy pouch-type LiNi0.8Mn0.1Co0.1O2|graphite (NMC811|Gr) cells is reported. This EC-free electrolyte can effectively stabilize the NMC811 surface under high potential (up to 4.5 V), as well as generate a stable interphase to achieve a superior compatibility with the Gr anode. The electrolyte strategy enables significantly enhanced intrinsic safety (trigger temperature of thermal runaway (TR) increased by 67.0 °C), excellent electrochemical properties (4.2V, ≈100% after 200 cycles), and superior high voltage stability (4.5 V, 82.1% after 200 cycles). The work opens up a new avenue for developing novel electrolyte systems to build safer high-energy batteries for practical applications.

AB - Serious safety issues are impeding the widespread adoption of high-energy lithium-ion batteries for transportation electrification and large-scale grid storage. Herein, a triple-salt ethylene carbonate (EC) free electrolyte for high-safety and high-energy pouch-type LiNi0.8Mn0.1Co0.1O2|graphite (NMC811|Gr) cells is reported. This EC-free electrolyte can effectively stabilize the NMC811 surface under high potential (up to 4.5 V), as well as generate a stable interphase to achieve a superior compatibility with the Gr anode. The electrolyte strategy enables significantly enhanced intrinsic safety (trigger temperature of thermal runaway (TR) increased by 67.0 °C), excellent electrochemical properties (4.2V, ≈100% after 200 cycles), and superior high voltage stability (4.5 V, 82.1% after 200 cycles). The work opens up a new avenue for developing novel electrolyte systems to build safer high-energy batteries for practical applications.

KW - EC-free electrolytes

KW - high safety

KW - high voltage

KW - practical lithium batteries

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High-Voltage and High-Safety Practical Lithium Batteries with Ethylene Carbonate-Free Electrolyte

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