中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
From-20 degrees C to 150 degrees C: a lithium secondary battery with a wide temperature window obtained via manipulated competitive decomposition in electrolyte solution dagger

文献类型:期刊论文

作者Zheng, Tianle; Xiong, Jianwei; Zhu, Bingying; Shi, Xiaotang; Cheng, Ya-Jun; Zhao, Hongbin; Xia, Yonggao
刊名JOURNAL OF MATERIALS CHEMISTRY A
出版日期2021
卷号9期号:14页码:9307-9318
英文摘要Lithium secondary batteries (LSBs) have witnessed explosive growth in the last decade. A wide operating temperature window is crucial for practical applications. A new concept is developed to expand the temperature window between -20 degrees C and 150 degrees C, where a competitive decomposition process between the electrolyte and solvent is manipulated with adiponitrile (ADN) over a wide temperature range. The decomposition of ethylene carbonate (EC) solvent and anions of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and lithium oxalyldifluoroborate (LiODFB) is regulated with ADN via a temperature-dependent lithium solvation mechanism. As a result, a SEI layer with a rich inorganic component is formed at elevated temperatures, leading to improved performance in lithium titanate (LTO)/Li, lithium iron phosphate (LFP)/Li, and LiNi0.5Co0.2Mn0.3O2 (NCM523)/Li batteries over a wide temperature range. It enables a coulombic efficiency (CE) of 97.39% at 100 degrees C and more than 100 hours of cycling of Li/Li batteries at 150 degrees C, as well as stable cycling of LFP/Li batteries in the temperature range between 120 degrees C and -20 degrees C. Stable cycling performance is demonstrated with the LTO/Li batteries over a wider temperature range from -40 degrees C to 150 degrees C. High-temperature electrochemical stability is exhibited at 5C, with a capacity retention ratio of 87.94% at 120 degrees C and 99.93% at 100 degrees C after 1000 cycles.
源URL[http://ir.nimte.ac.cn/handle/174433/22102]  
专题中国科学院宁波材料技术与工程研究所
2021专题_期刊论文
作者单位1.Xia, YG (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, 19A Yuquan Rd, Beijing 100049, Peoples R China.
2.Zhao, HB (corresponding author), Shanghai Univ, Coll Sci, Dept Chem, Shanghai 200444, Peoples R China.
3.Cheng, YJ
4.Xia, YG (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China.
推荐引用方式
GB/T 7714
Zheng, Tianle,Xiong, Jianwei,Zhu, Bingying,et al. From-20 degrees C to 150 degrees C: a lithium secondary battery with a wide temperature window obtained via manipulated competitive decomposition in electrolyte solution dagger[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021,9(14):9307-9318.
APA Zheng, Tianle.,Xiong, Jianwei.,Zhu, Bingying.,Shi, Xiaotang.,Cheng, Ya-Jun.,...&Xia, Yonggao.(2021).From-20 degrees C to 150 degrees C: a lithium secondary battery with a wide temperature window obtained via manipulated competitive decomposition in electrolyte solution dagger.JOURNAL OF MATERIALS CHEMISTRY A,9(14),9307-9318.
MLA Zheng, Tianle,et al."From-20 degrees C to 150 degrees C: a lithium secondary battery with a wide temperature window obtained via manipulated competitive decomposition in electrolyte solution dagger".JOURNAL OF MATERIALS CHEMISTRY A 9.14(2021):9307-9318.

入库方式: OAI收割

来源:宁波材料技术与工程研究所

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