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A smart, anti-piercing and eliminating-dendrite lithium metal battery
- Source :
- Nano Energy. 49:403-410
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Penetration of lithium metal and uncontrollable growth of lithium dendrites of lithium metal batteries (LMBs) easily induce safety concerns. Herein, we propose a smart lithium-manganite/graphene-oxide/lithium (LMO/GO/Li) battery with rationally designed trilayer films as separator, in which GO film is sandwiched by two pieces of commercial polymer microporous membranes. This unique LMO/GO/Li battery possesses the merits of anti-piercing and eliminating Li dendrites. Once being pierced, the middle GO layer can chemically etch metallic Li based on the spontaneous redox reaction and thus the LMO/GO/Li battery can work normally without short-circuit. Meanwhile, Li dendrites can be efficiently eliminated by GO to avoid internal shorting. Consequently, the LMO/GO/Li battery can reversibly charge/discharge for 6000 cycles that is ca. 48 times longer than that of conventional LMO/Li battery, and still retain a high Coulombic efficiency of 93%. This work not only conceptually provides new opportunities for developing other anti-piercing batteries, but also paves the way for building dendrite-free LMBs.
- Subjects :
- Materials science
Renewable Energy, Sustainability and the Environment
Graphene
Oxide
Nanotechnology
02 engineering and technology
Li battery
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
law.invention
chemistry.chemical_compound
chemistry
law
Microporous membranes
General Materials Science
Electrical and Electronic Engineering
Lithium metal
0210 nano-technology
Faraday efficiency
Separator (electricity)
Subjects
Details
- ISSN :
- 22112855
- Volume :
- 49
- Database :
- OpenAIRE
- Journal :
- Nano Energy
- Accession number :
- edsair.doi...........58df89e21596f81edc8856907150458e