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Lithium Metal Batteries Enabled by Synergetic Additives in Commercial Carbonate Electrolytes

文献类型：期刊论文

作者Piao, Nan1,2; Liu, Sufu1; Zhang, Bao3; Ji, Xiao1; Fan, Xiulin1; Wang, Li2; Wang, Peng-Fei1; Jin, Ting1; Liou, Sz-Chian4; Yang, Huicong5
刊名ACS ENERGY LETTERS
出版日期2021-05-14
卷号6期号:5页码:1839-1848
ISSN号2380-8195
DOI10.1021/acsenergylett.1c00365
通讯作者He, Xiangming(hexm@tsinghua.edu.cn) ; Wang, Chunsheng(cswang@umd.edu)
英文摘要The lithium metal anode is considered as the ultimate choice for high-energy-density batteries. However, the organic-dominated solid electrolyte interphase (SEI) formed in carbonate electrolytes has a low interface energy against metallic Li as well as a high resistance, resulting in a low Li plating/stripping Coulombic efficiency (CE) of less than 99.0% and severe Li dendrite growth. Herein, inorganic-enhanced LiF-Li3N SEI is designed in commercial 1 M LiPF6/EC-DMC electrolytes by introducing lithium nitrate (LiNO3) and fluoroethylene carbonate (FEC) through a small amount of sulfolane (SL) as a carrier solvent owing to the high solubility of SL for both carbonate solvents and LiNO3. The comprehensive characterizations and simulations demonstrate that the synergistic interaction of LiNO3 and FEC additives alters the solvation structure of 1 M LiPF6/EC-DMC electrolytes and forms additive-derived LiF-Li3N SEI, which increases the average Li CE up to 99.6% in 100 cycles. The designed carbonate electrolyte enables the Li/LiNi0.80Co0.15Al0.05O2 (NCA) cell with a lean lithium metal anode (similar to 50 mu m) to achieve an average CE of 99.7% and a high capacity retention of 90.8% after 150 cycles. This work offers a simple and economical strategy to realize high-performance lithium metal batteries in commercial carbonate electrolytes.
资助项目Ministry of Science and Technology of China for Sino-U.S. Cooperation[2019YFE0100200] ; Maryland NanoCenter and its AIMLab
WOS研究方向Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000651810400021
出版者AMER CHEMICAL SOC
资助机构Ministry of Science and Technology of China for Sino-U.S. Cooperation ; Maryland NanoCenter and its AIMLab
源URL[http://ir.imr.ac.cn/handle/321006/160236]  
专题金属研究所_中国科学院金属研究所
通讯作者He, Xiangming; Wang, Chunsheng
作者单位1.Univ Maryland, Dept Chem & Biomol Engn, College Pk, MD 20740 USA
2.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
3.Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China
4.Univ Maryland, Maryland Nanoctr, College Pk, MD 20740 USA
5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
6.CCDC Army Res Lab, Energy Storage Branch, Adelphi, MD 20783 USA
7.Univ Maryland, Dept Chem & Biochem, College Pk, MD 20740 USA
推荐引用方式
GB/T 7714		 Piao, Nan,Liu, Sufu,Zhang, Bao,et al. Lithium Metal Batteries Enabled by Synergetic Additives in Commercial Carbonate Electrolytes[J]. ACS ENERGY LETTERS,2021,6(5):1839-1848.
APA Piao, Nan.,Liu, Sufu.,Zhang, Bao.,Ji, Xiao.,Fan, Xiulin.,...&Wang, Chunsheng.(2021).Lithium Metal Batteries Enabled by Synergetic Additives in Commercial Carbonate Electrolytes.ACS ENERGY LETTERS,6(5),1839-1848.
MLA Piao, Nan,et al."Lithium Metal Batteries Enabled by Synergetic Additives in Commercial Carbonate Electrolytes".ACS ENERGY LETTERS 6.5(2021):1839-1848.

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来源：金属研究所

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