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Aminoalkyldisiloxane compound as efficient high-temperature electrolyte additive for LiMn2O4/graphite batteries

文献类型：期刊论文

作者Luo, Xuan2,3; Jiang, Shiyong1,4; Yan, Xiaodan2; Chen, Cheng2; Liu, Shuchang2; Zhan, Shiying4; Zhang, Lingzhi2,3
刊名IONICS
出版日期2022-11-11
页码10
关键词LiMn2O4 graphite cell Electrolyte additive Aminoalkysilane compound High-temperature cycling
ISSN号0947-7047
DOI10.1007/s11581-022-04814-x
通讯作者Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
英文摘要LiMn2O4 batteries have been widely used as power batteries due to the advantages of high safety, low cost, and higher capacities as compared to their LiFePO4 counterparts. However, their cycling stabilities under elevated temperatures remain a significant challenge in practical applications. We herein report an effective electrolyte additive of (3-(N, N-dimethylamino) diethoxypropyl) pentamethyldisiloxane (DSON) to improve the high-temperature electrochemical performance of LiMn2O4 cells. The LiMn2O4/graphite cell using an optimized addition level of 0.5 wt% shows an increased capacity retention of 56.8% compared to 36.8% for that using the baseline electrolyte after 50 cycles at 60 degrees C. X-ray photoelectron spectra reveal that DSON compound can also form a robust cathode electrolyte interface on the surface of LiMn2O4 cathode. The dissolution of Mn from LiMn2O4 cathode is effectively suppressed in LiMn2O4/Li cell after 200 cycles at 60 degrees C, due to the formed cathode electrolyte interface and the inhibited hydrolysis of LiPF6 salt in the electrolyte at the presence of DSON additive. This work demonstrates that DSON is a promising electrolyte additive for improving the cycling stability of LiMn2O4 batteries at high temperatures.
WOS关键词LITHIUM MANGANESE OXIDE ; LIMN2O4 CATHODE ; GEL ELECTROLYTE ; ION BATTERIES ; PERFORMANCE ; STABILITY ; CELLS ; INTERFACE ; IMPROVE ; CYCLABILITY
资助项目STS Program of Chinese Academy of Sciences-Dongguan Special Fund[20211600200331] ; K. C. Wong Education Foundation
WOS研究方向Chemistry ; Electrochemistry ; Physics
语种英语
WOS记录号WOS:000881876100001
出版者SPRINGER HEIDELBERG
资助机构STS Program of Chinese Academy of Sciences-Dongguan Special Fund ; K. C. Wong Education Foundation
源URL[http://ir.giec.ac.cn/handle/344007/37767]  
专题中国科学院广州能源研究所
通讯作者Zhang, Lingzhi
作者单位1.Chongqing Univ, Chongqing 400044, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Gree Altairnano New Energy Inc, Zhuhai 519090, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Luo, Xuan,Jiang, Shiyong,Yan, Xiaodan,et al. Aminoalkyldisiloxane compound as efficient high-temperature electrolyte additive for LiMn2O4/graphite batteries[J]. IONICS,2022:10.
APA Luo, Xuan.,Jiang, Shiyong.,Yan, Xiaodan.,Chen, Cheng.,Liu, Shuchang.,...&Zhang, Lingzhi.(2022).Aminoalkyldisiloxane compound as efficient high-temperature electrolyte additive for LiMn2O4/graphite batteries.IONICS,10.
MLA Luo, Xuan,et al."Aminoalkyldisiloxane compound as efficient high-temperature electrolyte additive for LiMn2O4/graphite batteries".IONICS (2022):10.

入库方式： OAI收割

来源：广州能源研究所

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