气候变化领域集成服务门户(CCPortal): Universal lithiophilic interfacial layers towards dendrite-free lithium anodes for solid-state lithium-metal batteries

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DOI	10.1016/j.scib.2021.04.034
	Universal lithiophilic interfacial layers towards dendrite-free lithium anodes for solid-state lithium-metal batteries
	Lu G.; Dong Z.; Liu W.; Jiang X.; Yang Z.; Liu Q.; Yang X.; Wu D.; Li Z.; Zhao Q.; Hu X.; Xu C.; Pan F.
发表日期	2021
ISSN	20959273
起始页码	1746
结束页码	1753
卷号	66 期号:17
英文摘要	Solid-state lithium-metal batteries (SSLMBs) using garnet Li6.4La3Zr1.4Ta0.6O12 (LLZTO) as the solid electrolyte are expected to conquer the safety concerns of high energy Li batteries with organic liquid electrolytes owing to its nonflammable nature and good mechanical strength. However, the poor interfacial contact between the Li anode and LLZTO greatly restrains the practical applications of the electrolyte, because large polarization, dendritic Li formation and penetration can occur at the interfaces. Here, an effective method is proposed to improve the wettability of the LLZTO toward lithium and reduce the interfacial resistance by engineering universal lithiophilic interfacial layers. Thanks to the in-situ formed lithiophilic and ionic conductive Co/Li2O interlayers, the symmetric Li/CoO-LLZTO/Li batteries present much smaller overpotential, ultra-low areal specific resistance (ASR, 12.3 Ω cm2), high critical current density (CCD, 1.1 mA cm−2), and outstanding cycling performance (1696 h at a current density of 0.3 mA cm−2) at 25 °C. Besides, the solid-state Li/CoO-LLZTO/LFP cells deliver an excellent electrochemical performance with a high coulombic efficiency of ~100% and a long cycling time over 185 times. Surprisingly, the high-voltage (4.6 V) solid state Li/CoO-LLZTO/Li1.4Mn0.6Ni0.2Co0.2O2.4 (LMNC622) batteries can also realize an ultra-high specific capacity (232.5 mAh g−1) under 0.1 C at 25 °C. This work paves an effective way for practical applications of the dendrite-free SSLMBs. © 2021 Science China Press
关键词	Garnet Lithiophilic layers Lithium metal batteries Solid-state electrochemical interface Solid-state electrolytes
英文关键词	Anodes; Garnets; Interface states; Lanthanum compounds; Lithium; Lithium batteries; Lithium compounds; Solid-State Batteries; Tantalum compounds; Zirconium compounds; Interfacial layer; La$+3+$; Li$++$; Li-battery; Lithiophilic layer; Lithium anode; Lithium metal battery; Lithium metals; Solid-state electrochemical interface; Solid-state electrolyte; Solid electrolytes
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207513
作者单位	College of Aerospace Engineering, Chongqing University, Chongqing, 400044, China; College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing, 400044, China; Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, China
推荐引用方式 GB/T 7714	Lu G.,Dong Z.,Liu W.,et al. Universal lithiophilic interfacial layers towards dendrite-free lithium anodes for solid-state lithium-metal batteries[J],2021,66(17).
APA	Lu G..,Dong Z..,Liu W..,Jiang X..,Yang Z..,...&Pan F..(2021).Universal lithiophilic interfacial layers towards dendrite-free lithium anodes for solid-state lithium-metal batteries.Science Bulletin,66(17).
MLA	Lu G.,et al."Universal lithiophilic interfacial layers towards dendrite-free lithium anodes for solid-state lithium-metal batteries".Science Bulletin 66.17(2021).