气候变化领域集成服务门户(CCPortal): A more stable lithium anode by mechanical constriction for solid state batteries

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DOI	10.1039/c9ee04007b
	A more stable lithium anode by mechanical constriction for solid state batteries
	Su Y.; Ye L.; Fitzhugh W.; Wang Y.; Gil-González E.; Kim I.; Li X.
发表日期	2020
ISSN	17545692
起始页码	908
结束页码	916
卷号	13 期号:3
英文摘要	In solid state batteries, lithium dendrites form when the applied current density is higher than a critical value. The critical current density is often reported as 1-2 mA cm-2 at an external pressure of around 10 MPa. In this work, a more advanced mechanical constriction technique is applied on a solid-state battery constructed with Li10GeP2S12 (LGPS) as the electrolyte and a lithium metal/graphite composite as the anode, where the graphite layer was applied to prevent (electro-)chemical reactions between Li metal and LGPS, as well as a short-circuit upon the application of pressure. The decomposition pathway of LGPS at the anode interface is modified by this mechanical constriction design, and the growth of lithium dendrites is inhibited, leading to excellent rate and cycling performances. No short-circuit or lithium dendrite formation is observed for batteries cycled at a current density up to 10 mA cm-2. © 2020 The Royal Society of Chemistry.
英文关键词	Anodes; Current density; Germanium compounds; Lithium; Lithium batteries; Lithium compounds; Solid state devices; Solid state reactions; Solid-State Batteries; Applied current; Critical value; Cycling performance; Decomposition pathway; External pressures; Graphite layers; Lithium dendrite; Lithium metals; Solid electrolytes; electrode; electrolyte; fuel cell; lithium; mechanical property
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189683
作者单位	John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States
推荐引用方式 GB/T 7714	Su Y.,Ye L.,Fitzhugh W.,et al. A more stable lithium anode by mechanical constriction for solid state batteries[J],2020,13(3).
APA	Su Y..,Ye L..,Fitzhugh W..,Wang Y..,Gil-González E..,...&Li X..(2020).A more stable lithium anode by mechanical constriction for solid state batteries.Energy & Environmental Science,13(3).
MLA	Su Y.,et al."A more stable lithium anode by mechanical constriction for solid state batteries".Energy & Environmental Science 13.3(2020).